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2017-02-23 06:26:44 +08:00
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2017-03-21 01:33:21 +08:00
< div class = "title" > /data/users/matthijs/github_faiss/faiss/IndexIVFPQ.cpp< / div > < / div >
2017-02-23 06:26:44 +08:00
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< div class = "line" > < a name = "l00003" > < / a > < span class = "lineno" > 3< / span >   < span class = "comment" > * Copyright (c) 2015-present, Facebook, Inc.< / span > < / div >
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< div class = "line" > < a name = "l00010" > < / a > < span class = "lineno" > 10< / span >   < span class = "comment" > /* Copyright 2004-present Facebook. All Rights Reserved.< / span > < / div >
< div class = "line" > < a name = "l00011" > < / a > < span class = "lineno" > 11< / span >   < span class = "comment" > Inverted list structure.< / span > < / div >
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< div class = "line" > < a name = "l00014" > < / a > < span class = "lineno" > 14< / span >   < span class = "preprocessor" > #include " IndexIVFPQ.h" < / span > < / div >
< div class = "line" > < a name = "l00015" > < / a > < span class = "lineno" > 15< / span >   < / div >
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< div class = "line" > < a name = "l00016" > < / a > < span class = "lineno" > 16< / span >   < span class = "preprocessor" > #include < cmath> < / span > < / div >
< div class = "line" > < a name = "l00017" > < / a > < span class = "lineno" > 17< / span >   < span class = "preprocessor" > #include < cstdio> < / span > < / div >
< div class = "line" > < a name = "l00018" > < / a > < span class = "lineno" > 18< / span >   < span class = "preprocessor" > #include < cassert> < / span > < / div >
< div class = "line" > < a name = "l00019" > < / a > < span class = "lineno" > 19< / span >   < / div >
< div class = "line" > < a name = "l00020" > < / a > < span class = "lineno" > 20< / span >   < span class = "preprocessor" > #include < sys/mman.h> < / span > < / div >
< div class = "line" > < a name = "l00021" > < / a > < span class = "lineno" > 21< / span >   < / div >
< div class = "line" > < a name = "l00022" > < / a > < span class = "lineno" > 22< / span >   < span class = "preprocessor" > #include < algorithm> < / span > < / div >
< div class = "line" > < a name = "l00023" > < / a > < span class = "lineno" > 23< / span >   < / div >
< div class = "line" > < a name = "l00024" > < / a > < span class = "lineno" > 24< / span >   < span class = "preprocessor" > #include " Heap.h" < / span > < / div >
< div class = "line" > < a name = "l00025" > < / a > < span class = "lineno" > 25< / span >   < span class = "preprocessor" > #include " utils.h" < / span > < / div >
< div class = "line" > < a name = "l00026" > < / a > < span class = "lineno" > 26< / span >   < / div >
< div class = "line" > < a name = "l00027" > < / a > < span class = "lineno" > 27< / span >   < span class = "preprocessor" > #include " Clustering.h" < / span > < / div >
< div class = "line" > < a name = "l00028" > < / a > < span class = "lineno" > 28< / span >   < span class = "preprocessor" > #include " IndexFlat.h" < / span > < / div >
< div class = "line" > < a name = "l00029" > < / a > < span class = "lineno" > 29< / span >   < / div >
< div class = "line" > < a name = "l00030" > < / a > < span class = "lineno" > 30< / span >   < span class = "preprocessor" > #include " hamming.h" < / span > < / div >
< div class = "line" > < a name = "l00031" > < / a > < span class = "lineno" > 31< / span >   < / div >
< div class = "line" > < a name = "l00032" > < / a > < span class = "lineno" > 32< / span >   < span class = "preprocessor" > #include " FaissAssert.h" < / span > < / div >
< div class = "line" > < a name = "l00033" > < / a > < span class = "lineno" > 33< / span >   < / div >
< div class = "line" > < a name = "l00034" > < / a > < span class = "lineno" > 34< / span >   < span class = "preprocessor" > #include " AuxIndexStructures.h" < / span > < / div >
< div class = "line" > < a name = "l00035" > < / a > < span class = "lineno" > 35< / span >   < / div >
< div class = "line" > < a name = "l00036" > < / a > < span class = "lineno" > 36< / span >   < span class = "keyword" > namespace < / span > faiss {< / div >
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< div class = "line" > < a name = "l00037" > < / a > < span class = "lineno" > 37< / span >   < / div >
< div class = "line" > < a name = "l00038" > < / a > < span class = "lineno" > 38< / span >   < / div >
< div class = "line" > < a name = "l00039" > < / a > < span class = "lineno" > 39< / span >   < / div >
< div class = "line" > < a name = "l00040" > < / a > < span class = "lineno" > 40< / span >   < / div >
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< div class = "line" > < a name = "l00041" > < / a > < span class = "lineno" > 41< / span >   < / div >
< div class = "line" > < a name = "l00042" > < / a > < span class = "lineno" > 42< / span >   < span class = "comment" > /*****************************************< / span > < / div >
< div class = "line" > < a name = "l00043" > < / a > < span class = "lineno" > 43< / span >   < span class = "comment" > * IndexIVFPQ implementation< / span > < / div >
< div class = "line" > < a name = "l00044" > < / a > < span class = "lineno" > 44< / span >   < span class = "comment" > ******************************************/< / span > < / div >
< div class = "line" > < a name = "l00045" > < / a > < span class = "lineno" > 45< / span >   < / div >
< div class = "line" > < a name = "l00046" > < / a > < span class = "lineno" > 46< / span >   IndexIVFPQ::IndexIVFPQ (Index * quantizer, < span class = "keywordtype" > size_t< / span > d, < span class = "keywordtype" > size_t< / span > nlist,< / div >
< div class = "line" > < a name = "l00047" > < / a > < span class = "lineno" > 47< / span >   < span class = "keywordtype" > size_t< / span > M, < span class = "keywordtype" > size_t< / span > nbits_per_idx):< / div >
< div class = "line" > < a name = "l00048" > < / a > < span class = "lineno" > 48< / span >   IndexIVF (quantizer, d, nlist, METRIC_L2),< / div >
< div class = "line" > < a name = "l00049" > < / a > < span class = "lineno" > 49< / span >   pq (d, M, nbits_per_idx)< / div >
< div class = "line" > < a name = "l00050" > < / a > < span class = "lineno" > 50< / span >   {< / div >
< div class = "line" > < a name = "l00051" > < / a > < span class = "lineno" > 51< / span >   FAISS_ASSERT (nbits_per_idx < = 8);< / div >
< div class = "line" > < a name = "l00052" > < / a > < span class = "lineno" > 52< / span >   code_size = pq.code_size;< / div >
< div class = "line" > < a name = "l00053" > < / a > < span class = "lineno" > 53< / span >   < a class = "code" href = "structfaiss_1_1Index.html#a6e92732617c4dbe364e7678dd8773a7f" > is_trained< / a > = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00054" > < / a > < span class = "lineno" > 54< / span >   codes.resize (nlist);< / div >
< div class = "line" > < a name = "l00055" > < / a > < span class = "lineno" > 55< / span >   by_residual = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00056" > < / a > < span class = "lineno" > 56< / span >   use_precomputed_table = 0;< / div >
< div class = "line" > < a name = "l00057" > < / a > < span class = "lineno" > 57< / span >   scan_table_threshold = 0;< / div >
< div class = "line" > < a name = "l00058" > < / a > < span class = "lineno" > 58< / span >   max_codes = 0; < span class = "comment" > // means unlimited< / span > < / div >
< div class = "line" > < a name = "l00059" > < / a > < span class = "lineno" > 59< / span >   < / div >
< div class = "line" > < a name = "l00060" > < / a > < span class = "lineno" > 60< / span >   polysemous_training = < span class = "keyword" > nullptr< / span > ;< / div >
< div class = "line" > < a name = "l00061" > < / a > < span class = "lineno" > 61< / span >   do_polysemous_training = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00062" > < / a > < span class = "lineno" > 62< / span >   polysemous_ht = 0;< / div >
< div class = "line" > < a name = "l00063" > < / a > < span class = "lineno" > 63< / span >   < / div >
< div class = "line" > < a name = "l00064" > < / a > < span class = "lineno" > 64< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFFlat.html#a0117e9eac02ce8d106d8a288234f365c" > set_typename< / a > ();< / div >
< div class = "line" > < a name = "l00065" > < / a > < span class = "lineno" > 65< / span >   }< / div >
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< div class = "line" > < a name = "l00066" > < / a > < span class = "lineno" > 66< / span >   < / div >
< div class = "line" > < a name = "l00067" > < / a > < span class = "lineno" > 67< / span >   < / div >
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< div class = "line" > < a name = "l00068" > < / a > < span class = "lineno" > 68< / span >   < / div >
< div class = "line" > < a name = "l00069" > < / a > < span class = "lineno" > 69< / span >   < span class = "keywordtype" > void< / span > IndexIVFPQ::set_typename ()< / div >
< div class = "line" > < a name = "l00070" > < / a > < span class = "lineno" > 70< / span >   {< / div >
< div class = "line" > < a name = "l00071" > < / a > < span class = "lineno" > 71< / span >   std::stringstream s;< / div >
< div class = "line" > < a name = "l00072" > < / a > < span class = "lineno" > 72< / span >   s < < < span class = "stringliteral" > " IvfPQ_" < / span > < < < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#a83600e328893ce5f41fe459f5a3acf41" > M< / a > < < < span class = "stringliteral" > " x" < / span > < < < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#ac920fea11f02e8407d12cc99a09f5ea5" > nbits< / a > < / div >
< div class = "line" > < a name = "l00073" > < / a > < span class = "lineno" > 73< / span >   < < < span class = "stringliteral" > " [" < / span > < < nlist < < < span class = "stringliteral" > " :" < / span > < < quantizer-> index_typename < < < span class = "stringliteral" > " ]" < / span > ;< / div >
< div class = "line" > < a name = "l00074" > < / a > < span class = "lineno" > 74< / span >   index_typename = s.str();< / div >
< div class = "line" > < a name = "l00075" > < / a > < span class = "lineno" > 75< / span >   }< / div >
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< div class = "line" > < a name = "l00076" > < / a > < span class = "lineno" > 76< / span >   < / div >
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< div class = "line" > < a name = "l00077" > < / a > < span class = "lineno" > 77< / span >   < / div >
< div class = "line" > < a name = "l00078" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexIVFPQ.html#af6565a5d8bab7be3df19c50d235bd662" > 78< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#af6565a5d8bab7be3df19c50d235bd662" > IndexIVFPQ::train_residual< / a > (< a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > n, < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > *x)< / div >
< div class = "line" > < a name = "l00079" > < / a > < span class = "lineno" > 79< / span >   {< / div >
< div class = "line" > < a name = "l00080" > < / a > < span class = "lineno" > 80< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a4e06f04853dcb424dc393de5f641e917" > train_residual_o< / a > (n, x, < span class = "keyword" > nullptr< / span > );< / div >
< div class = "line" > < a name = "l00081" > < / a > < span class = "lineno" > 81< / span >   }< / div >
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< div class = "line" > < a name = "l00082" > < / a > < span class = "lineno" > 82< / span >   < / div >
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< div class = "line" > < a name = "l00083" > < / a > < span class = "lineno" > 83< / span >   < / div >
< div class = "line" > < a name = "l00084" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexIVFPQ.html#a4e06f04853dcb424dc393de5f641e917" > 84< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a4e06f04853dcb424dc393de5f641e917" > IndexIVFPQ::train_residual_o< / a > (< a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > n, < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > *x, < span class = "keywordtype" > float< / span > *residuals_2)< / div >
< div class = "line" > < a name = "l00085" > < / a > < span class = "lineno" > 85< / span >   {< / div >
< div class = "line" > < a name = "l00086" > < / a > < span class = "lineno" > 86< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > * x_in = x;< / div >
< div class = "line" > < a name = "l00087" > < / a > < span class = "lineno" > 87< / span >   < / div >
< div class = "line" > < a name = "l00088" > < / a > < span class = "lineno" > 88< / span >   x = < a class = "code" href = "namespacefaiss.html#a14884d253128c7af5891a65082ad7dc6" > fvecs_maybe_subsample< / a > (< / div >
< div class = "line" > < a name = "l00089" > < / a > < span class = "lineno" > 89< / span >   d, (< span class = "keywordtype" > size_t< / span > *)& n, < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#af265acf5aa1bcda60898002287e6a3d6" > cp< / a > .< a class = "code" href = "structfaiss_1_1ClusteringParameters.html#a993e0a035248faad6e292a5ef9af1953" > max_points_per_centroid< / a > * < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#a0feee45e4151547b7a0444c14bad398f" > ksub< / a > ,< / div >
< div class = "line" > < a name = "l00090" > < / a > < span class = "lineno" > 90< / span >   x, < a class = "code" href = "structfaiss_1_1Index.html#a5590d847c5c2b958affd2a05e58a6f23" > verbose< / a > , < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#af265acf5aa1bcda60898002287e6a3d6" > cp< / a > .< a class = "code" href = "structfaiss_1_1ClusteringParameters.html#a509c65e2ebe6ecabebd163ecb03c5579" > seed< / a > );< / div >
< div class = "line" > < a name = "l00091" > < / a > < span class = "lineno" > 91< / span >   < / div >
< div class = "line" > < a name = "l00092" > < / a > < span class = "lineno" > 92< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > *trainset;< / div >
< div class = "line" > < a name = "l00093" > < / a > < span class = "lineno" > 93< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#afd13b471df293ae5a6e895704c69a4c3" > by_residual< / a > ) {< / div >
< div class = "line" > < a name = "l00094" > < / a > < span class = "lineno" > 94< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "structfaiss_1_1Index.html#a5590d847c5c2b958affd2a05e58a6f23" > verbose< / a > ) printf(< span class = "stringliteral" > " computing residuals\n" < / span > );< / div >
< div class = "line" > < a name = "l00095" > < / a > < span class = "lineno" > 95< / span >   < a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > * < a class = "code" href = "structfaiss_1_1Index.html#a8bc5d8d1cd0dd7b34b3c98a9f76b4a9c" > assign< / a > = < span class = "keyword" > new< / span > < a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > [n]; < span class = "comment" > // assignement to coarse centroids< / span > < / div >
< div class = "line" > < a name = "l00096" > < / a > < span class = "lineno" > 96< / span >   quantizer-> assign (n, x, assign);< / div >
< div class = "line" > < a name = "l00097" > < / a > < span class = "lineno" > 97< / span >   < span class = "keywordtype" > float< / span > *residuals = < span class = "keyword" > new< / span > < span class = "keywordtype" > float< / span > [n * < a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > ];< / div >
< div class = "line" > < a name = "l00098" > < / a > < span class = "lineno" > 98< / span >   < span class = "keywordflow" > for< / span > (< a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > i = 0; i < n; i++)< / div >
< div class = "line" > < a name = "l00099" > < / a > < span class = "lineno" > 99< / span >   quantizer-> compute_residual (x + i * d, residuals+i*d, assign[i]);< / div >
< div class = "line" > < a name = "l00100" > < / a > < span class = "lineno" > 100< / span >   < span class = "keyword" > delete< / span > [] < a class = "code" href = "structfaiss_1_1Index.html#a8bc5d8d1cd0dd7b34b3c98a9f76b4a9c" > assign< / a > ;< / div >
< div class = "line" > < a name = "l00101" > < / a > < span class = "lineno" > 101< / span >   trainset = residuals;< / div >
< div class = "line" > < a name = "l00102" > < / a > < span class = "lineno" > 102< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00103" > < / a > < span class = "lineno" > 103< / span >   trainset = x;< / div >
< div class = "line" > < a name = "l00104" > < / a > < span class = "lineno" > 104< / span >   }< / div >
< div class = "line" > < a name = "l00105" > < / a > < span class = "lineno" > 105< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "structfaiss_1_1Index.html#a5590d847c5c2b958affd2a05e58a6f23" > verbose< / a > )< / div >
< div class = "line" > < a name = "l00106" > < / a > < span class = "lineno" > 106< / span >   printf (< span class = "stringliteral" > " training %zdx%zd product quantizer on %ld vectors in %dD\n" < / span > ,< / div >
< div class = "line" > < a name = "l00107" > < / a > < span class = "lineno" > 107< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#a83600e328893ce5f41fe459f5a3acf41" > M< / a > , < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#a0feee45e4151547b7a0444c14bad398f" > ksub< / a > , n, d);< / div >
< div class = "line" > < a name = "l00108" > < / a > < span class = "lineno" > 108< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#a1e4056fa3938ed8c9fe701e90d94ad95" > verbose< / a > = < a class = "code" href = "structfaiss_1_1Index.html#a5590d847c5c2b958affd2a05e58a6f23" > verbose< / a > ;< / div >
< div class = "line" > < a name = "l00109" > < / a > < span class = "lineno" > 109< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > pq< / a > .train (n, trainset);< / div >
< div class = "line" > < a name = "l00110" > < / a > < span class = "lineno" > 110< / span >   < / div >
< div class = "line" > < a name = "l00111" > < / a > < span class = "lineno" > 111< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a9d5373633df7a9bec4de69400b9adeed" > do_polysemous_training< / a > ) {< / div >
< div class = "line" > < a name = "l00112" > < / a > < span class = "lineno" > 112< / span >   < a class = "code" href = "structfaiss_1_1PolysemousTraining.html" > PolysemousTraining< / a > default_pt;< / div >
< div class = "line" > < a name = "l00113" > < / a > < span class = "lineno" > 113< / span >   < a class = "code" href = "structfaiss_1_1PolysemousTraining.html" > PolysemousTraining< / a > *pt = < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a2b14cbb5acb3fc28a4df8fde3f5567cd" > polysemous_training< / a > ;< / div >
< div class = "line" > < a name = "l00114" > < / a > < span class = "lineno" > 114< / span >   < span class = "keywordflow" > if< / span > (!pt) pt = & default_pt;< / div >
< div class = "line" > < a name = "l00115" > < / a > < span class = "lineno" > 115< / span >   pt-> < a class = "code" href = "structfaiss_1_1PolysemousTraining.html#a995374ba2f0bc2738edae72ca9142f82" > optimize_pq_for_hamming< / a > (< a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > pq< / a > , n, trainset);< / div >
< div class = "line" > < a name = "l00116" > < / a > < span class = "lineno" > 116< / span >   }< / div >
< div class = "line" > < a name = "l00117" > < / a > < span class = "lineno" > 117< / span >   < / div >
< div class = "line" > < a name = "l00118" > < / a > < span class = "lineno" > 118< / span >   < span class = "comment" > // prepare second-level residuals for refine PQ< / span > < / div >
< div class = "line" > < a name = "l00119" > < / a > < span class = "lineno" > 119< / span >   < span class = "keywordflow" > if< / span > (residuals_2) {< / div >
< div class = "line" > < a name = "l00120" > < / a > < span class = "lineno" > 120< / span >   uint8_t *train_codes = < span class = "keyword" > new< / span > uint8_t [< a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#aa61330eadb84772b71018b093773a5f9" > code_size< / a > * n];< / div >
< div class = "line" > < a name = "l00121" > < / a > < span class = "lineno" > 121< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#ae5a340ee5a4b1d35a565b167de2a2ef1" > compute_codes< / a > (trainset, train_codes, n);< / div >
< div class = "line" > < a name = "l00122" > < / a > < span class = "lineno" > 122< / span >   < / div >
< div class = "line" > < a name = "l00123" > < / a > < span class = "lineno" > 123< / span >   < span class = "keywordflow" > for< / span > (< a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > i = 0; i < n; i++) {< / div >
< div class = "line" > < a name = "l00124" > < / a > < span class = "lineno" > 124< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > *xx = trainset + i * < a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > ;< / div >
< div class = "line" > < a name = "l00125" > < / a > < span class = "lineno" > 125< / span >   < span class = "keywordtype" > float< / span > * res = residuals_2 + i * < a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > ;< / div >
< div class = "line" > < a name = "l00126" > < / a > < span class = "lineno" > 126< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#a7afbf9d96276f021981e99f064254208" > decode< / a > (train_codes + i * < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#aa61330eadb84772b71018b093773a5f9" > code_size< / a > , res);< / div >
< div class = "line" > < a name = "l00127" > < / a > < span class = "lineno" > 127< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > j = 0; j < < a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > ; j++)< / div >
< div class = "line" > < a name = "l00128" > < / a > < span class = "lineno" > 128< / span >   res[j] = xx[j] - res[j];< / div >
< div class = "line" > < a name = "l00129" > < / a > < span class = "lineno" > 129< / span >   }< / div >
< div class = "line" > < a name = "l00130" > < / a > < span class = "lineno" > 130< / span >   < / div >
< div class = "line" > < a name = "l00131" > < / a > < span class = "lineno" > 131< / span >   < span class = "keyword" > delete< / span > [] train_codes;< / div >
< div class = "line" > < a name = "l00132" > < / a > < span class = "lineno" > 132< / span >   }< / div >
< div class = "line" > < a name = "l00133" > < / a > < span class = "lineno" > 133< / span >   < / div >
< div class = "line" > < a name = "l00134" > < / a > < span class = "lineno" > 134< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#afd13b471df293ae5a6e895704c69a4c3" > by_residual< / a > ) {< / div >
< div class = "line" > < a name = "l00135" > < / a > < span class = "lineno" > 135< / span >   < span class = "keyword" > delete< / span > [] trainset;< / div >
< div class = "line" > < a name = "l00136" > < / a > < span class = "lineno" > 136< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#ad99c215aeaf92e995cb97f4044c4d267" > precompute_table< / a > ();< / div >
< div class = "line" > < a name = "l00137" > < / a > < span class = "lineno" > 137< / span >   }< / div >
< div class = "line" > < a name = "l00138" > < / a > < span class = "lineno" > 138< / span >   < / div >
< div class = "line" > < a name = "l00139" > < / a > < span class = "lineno" > 139< / span >   < span class = "keywordflow" > if< / span > (x_in != x) < span class = "keyword" > delete< / span > [] x;< / div >
< div class = "line" > < a name = "l00140" > < / a > < span class = "lineno" > 140< / span >   }< / div >
2017-03-21 01:33:21 +08:00
< div class = "line" > < a name = "l00141" > < / a > < span class = "lineno" > 141< / span >   < / div >
2017-04-06 19:33:41 +08:00
< div class = "line" > < a name = "l00142" > < / a > < span class = "lineno" > 142< / span >   < / div >
< div class = "line" > < a name = "l00143" > < / a > < span class = "lineno" > 143< / span >   < span class = "comment" > /* produce a binary signature based on the residual vector */< / span > < / div >
< div class = "line" > < a name = "l00144" > < / a > < span class = "lineno" > 144< / span >   < span class = "keywordtype" > void< / span > IndexIVFPQ::encode (< span class = "keywordtype" > long< / span > key, < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > * x, uint8_t * code)< span class = "keyword" > const< / span > < / div >
< div class = "line" > < a name = "l00145" > < / a > < span class = "lineno" > 145< / span >   < span class = "keyword" > < / span > {< / div >
< div class = "line" > < a name = "l00146" > < / a > < span class = "lineno" > 146< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#afd13b471df293ae5a6e895704c69a4c3" > by_residual< / a > ) {< / div >
< div class = "line" > < a name = "l00147" > < / a > < span class = "lineno" > 147< / span >   < span class = "keywordtype" > float< / span > residual_vec[< a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > ];< / div >
< div class = "line" > < a name = "l00148" > < / a > < span class = "lineno" > 148< / span >   quantizer-> compute_residual (x, residual_vec, key);< / div >
< div class = "line" > < a name = "l00149" > < / a > < span class = "lineno" > 149< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#a08b130e3a21f2699a4e3bbec121fb838" > compute_code< / a > (residual_vec, code);< / div >
< div class = "line" > < a name = "l00150" > < / a > < span class = "lineno" > 150< / span >   }< / div >
< div class = "line" > < a name = "l00151" > < / a > < span class = "lineno" > 151< / span >   < span class = "keywordflow" > else< / span > < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#a08b130e3a21f2699a4e3bbec121fb838" > compute_code< / a > (x, code);< / div >
< div class = "line" > < a name = "l00152" > < / a > < span class = "lineno" > 152< / span >   }< / div >
2017-03-21 01:33:21 +08:00
< div class = "line" > < a name = "l00153" > < / a > < span class = "lineno" > 153< / span >   < / div >
< div class = "line" > < a name = "l00154" > < / a > < span class = "lineno" > 154< / span >   < / div >
< div class = "line" > < a name = "l00155" > < / a > < span class = "lineno" > 155< / span >   < / div >
< div class = "line" > < a name = "l00156" > < / a > < span class = "lineno" > 156< / span >   < / div >
2017-04-06 19:33:41 +08:00
< div class = "line" > < a name = "l00157" > < / a > < span class = "lineno" > 157< / span >   < / div >
< div class = "line" > < a name = "l00158" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexIVFPQ.html#a1ae6cdd996bbd398fa4e87646c8f3ba6" > 158< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a1ae6cdd996bbd398fa4e87646c8f3ba6" > IndexIVFPQ::encode_multiple< / a > (< span class = "keywordtype" > size_t< / span > n, < span class = "keywordtype" > long< / span > *keys,< / div >
< div class = "line" > < a name = "l00159" > < / a > < span class = "lineno" > 159< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > * x, uint8_t * xcodes,< / div >
< div class = "line" > < a name = "l00160" > < / a > < span class = "lineno" > 160< / span >   < span class = "keywordtype" > bool< / span > compute_keys)< span class = "keyword" > const< / span > < / div >
< div class = "line" > < a name = "l00161" > < / a > < span class = "lineno" > 161< / span >   < span class = "keyword" > < / span > {< / div >
< div class = "line" > < a name = "l00162" > < / a > < span class = "lineno" > 162< / span >   < span class = "keywordflow" > if< / span > (compute_keys)< / div >
< div class = "line" > < a name = "l00163" > < / a > < span class = "lineno" > 163< / span >   quantizer-> assign (n, x, keys);< / div >
< div class = "line" > < a name = "l00164" > < / a > < span class = "lineno" > 164< / span >   < / div >
< div class = "line" > < a name = "l00165" > < / a > < span class = "lineno" > 165< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#afd13b471df293ae5a6e895704c69a4c3" > by_residual< / a > ) {< / div >
< div class = "line" > < a name = "l00166" > < / a > < span class = "lineno" > 166< / span >   < span class = "keywordtype" > float< / span > *residuals = < span class = "keyword" > new< / span > < span class = "keywordtype" > float< / span > [n * < a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > ];< / div >
< div class = "line" > < a name = "l00167" > < / a > < span class = "lineno" > 167< / span >   < span class = "comment" > // TODO: parallelize?< / span > < / div >
< div class = "line" > < a name = "l00168" > < / a > < span class = "lineno" > 168< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > size_t< / span > i = 0; i < n; i++)< / div >
< div class = "line" > < a name = "l00169" > < / a > < span class = "lineno" > 169< / span >   quantizer-> compute_residual (x + i * d, residuals + i * d, keys[i]);< / div >
< div class = "line" > < a name = "l00170" > < / a > < span class = "lineno" > 170< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#ae5a340ee5a4b1d35a565b167de2a2ef1" > compute_codes< / a > (residuals, xcodes, n);< / div >
< div class = "line" > < a name = "l00171" > < / a > < span class = "lineno" > 171< / span >   < span class = "keyword" > delete< / span > [] residuals;< / div >
< div class = "line" > < a name = "l00172" > < / a > < span class = "lineno" > 172< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00173" > < / a > < span class = "lineno" > 173< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#ae5a340ee5a4b1d35a565b167de2a2ef1" > compute_codes< / a > (x, xcodes, n);< / div >
< div class = "line" > < a name = "l00174" > < / a > < span class = "lineno" > 174< / span >   }< / div >
< div class = "line" > < a name = "l00175" > < / a > < span class = "lineno" > 175< / span >   }< / div >
< div class = "line" > < a name = "l00176" > < / a > < span class = "lineno" > 176< / span >   < / div >
< div class = "line" > < a name = "l00177" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexIVFPQ.html#ae1fb0cc3051dec8e322a78c443f8fc9a" > 177< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#ae1fb0cc3051dec8e322a78c443f8fc9a" > IndexIVFPQ::decode_multiple< / a > (< span class = "keywordtype" > size_t< / span > n, < span class = "keyword" > const< / span > < span class = "keywordtype" > long< / span > *keys,< / div >
< div class = "line" > < a name = "l00178" > < / a > < span class = "lineno" > 178< / span >   < span class = "keyword" > const< / span > uint8_t * xcodes, < span class = "keywordtype" > float< / span > * x)< span class = "keyword" > const< / span > < / div >
< div class = "line" > < a name = "l00179" > < / a > < span class = "lineno" > 179< / span >   < span class = "keyword" > < / span > {< / div >
< div class = "line" > < a name = "l00180" > < / a > < span class = "lineno" > 180< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#a7afbf9d96276f021981e99f064254208" > decode< / a > (xcodes, x, n);< / div >
< div class = "line" > < a name = "l00181" > < / a > < span class = "lineno" > 181< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#afd13b471df293ae5a6e895704c69a4c3" > by_residual< / a > ) {< / div >
< div class = "line" > < a name = "l00182" > < / a > < span class = "lineno" > 182< / span >   std::vector< float> centroid (d);< / div >
< div class = "line" > < a name = "l00183" > < / a > < span class = "lineno" > 183< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > size_t< / span > i = 0; i < n; i++) {< / div >
< div class = "line" > < a name = "l00184" > < / a > < span class = "lineno" > 184< / span >   quantizer-> reconstruct (keys[i], centroid.data());< / div >
< div class = "line" > < a name = "l00185" > < / a > < span class = "lineno" > 185< / span >   < span class = "keywordtype" > float< / span > *xi = x + i * < a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > ;< / div >
< div class = "line" > < a name = "l00186" > < / a > < span class = "lineno" > 186< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > size_t< / span > j = 0; j < < a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > ; j++) {< / div >
< div class = "line" > < a name = "l00187" > < / a > < span class = "lineno" > 187< / span >   xi [j] += centroid [j];< / div >
< div class = "line" > < a name = "l00188" > < / a > < span class = "lineno" > 188< / span >   }< / div >
< div class = "line" > < a name = "l00189" > < / a > < span class = "lineno" > 189< / span >   }< / div >
< div class = "line" > < a name = "l00190" > < / a > < span class = "lineno" > 190< / span >   }< / div >
< div class = "line" > < a name = "l00191" > < / a > < span class = "lineno" > 191< / span >   }< / div >
< div class = "line" > < a name = "l00192" > < / a > < span class = "lineno" > 192< / span >   < / div >
< div class = "line" > < a name = "l00193" > < / a > < span class = "lineno" > 193< / span >   < / div >
< div class = "line" > < a name = "l00194" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexIVFPQ.html#a981c2748bfbd9b018494f119279a0342" > 194< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a981c2748bfbd9b018494f119279a0342" > IndexIVFPQ::add_with_ids< / a > (< a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > n, < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > * x, < span class = "keyword" > const< / span > < span class = "keywordtype" > long< / span > *xids)< / div >
< div class = "line" > < a name = "l00195" > < / a > < span class = "lineno" > 195< / span >   {< / div >
< div class = "line" > < a name = "l00196" > < / a > < span class = "lineno" > 196< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#ac0cb8421b9885d691696d2ff4f76894b" > add_core_o< / a > (n, x, xids, < span class = "keyword" > nullptr< / span > );< / div >
< div class = "line" > < a name = "l00197" > < / a > < span class = "lineno" > 197< / span >   }< / div >
< div class = "line" > < a name = "l00198" > < / a > < span class = "lineno" > 198< / span >   < / div >
2017-03-21 01:33:21 +08:00
< div class = "line" > < a name = "l00199" > < / a > < span class = "lineno" > 199< / span >   < / div >
2017-04-06 19:33:41 +08:00
< div class = "line" > < a name = "l00200" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexIVFPQ.html#ac0cb8421b9885d691696d2ff4f76894b" > 200< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#ac0cb8421b9885d691696d2ff4f76894b" > IndexIVFPQ::add_core_o< / a > (< a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > n, < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > * x, < span class = "keyword" > const< / span > < span class = "keywordtype" > long< / span > *xids,< / div >
< div class = "line" > < a name = "l00201" > < / a > < span class = "lineno" > 201< / span >   < span class = "keywordtype" > float< / span > *residuals_2, < span class = "keyword" > const< / span > < span class = "keywordtype" > long< / span > *precomputed_idx)< / div >
< div class = "line" > < a name = "l00202" > < / a > < span class = "lineno" > 202< / span >   {< / div >
< div class = "line" > < a name = "l00203" > < / a > < span class = "lineno" > 203< / span >   FAISS_ASSERT (< a class = "code" href = "structfaiss_1_1Index.html#a6e92732617c4dbe364e7678dd8773a7f" > is_trained< / a > );< / div >
< div class = "line" > < a name = "l00204" > < / a > < span class = "lineno" > 204< / span >   < span class = "keywordtype" > double< / span > t0 = < a class = "code" href = "namespacefaiss.html#af2a71f7d5402ae02ce169a4cc83020eb" > getmillisecs< / a > ();< / div >
< div class = "line" > < a name = "l00205" > < / a > < span class = "lineno" > 205< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > long< / span > * idx;< / div >
< div class = "line" > < a name = "l00206" > < / a > < span class = "lineno" > 206< / span >   < / div >
< div class = "line" > < a name = "l00207" > < / a > < span class = "lineno" > 207< / span >   < span class = "keywordflow" > if< / span > (precomputed_idx) {< / div >
< div class = "line" > < a name = "l00208" > < / a > < span class = "lineno" > 208< / span >   idx = precomputed_idx;< / div >
< div class = "line" > < a name = "l00209" > < / a > < span class = "lineno" > 209< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00210" > < / a > < span class = "lineno" > 210< / span >   < span class = "keywordtype" > long< / span > * idx0 = < span class = "keyword" > new< / span > < span class = "keywordtype" > long< / span > [n];< / div >
< div class = "line" > < a name = "l00211" > < / a > < span class = "lineno" > 211< / span >   quantizer-> assign (n, x, idx0);< / div >
< div class = "line" > < a name = "l00212" > < / a > < span class = "lineno" > 212< / span >   idx = idx0;< / div >
2017-03-21 01:33:21 +08:00
< div class = "line" > < a name = "l00213" > < / a > < span class = "lineno" > 213< / span >   }< / div >
2017-04-06 19:33:41 +08:00
< div class = "line" > < a name = "l00214" > < / a > < span class = "lineno" > 214< / span >   < / div >
< div class = "line" > < a name = "l00215" > < / a > < span class = "lineno" > 215< / span >   < span class = "keywordtype" > double< / span > t1 = < a class = "code" href = "namespacefaiss.html#af2a71f7d5402ae02ce169a4cc83020eb" > getmillisecs< / a > ();< / div >
< div class = "line" > < a name = "l00216" > < / a > < span class = "lineno" > 216< / span >   uint8_t * xcodes = < span class = "keyword" > new< / span > uint8_t [n * < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a31c6fb2faa4dadea4c0594338be7be90" > code_size< / a > ];< / div >
< div class = "line" > < a name = "l00217" > < / a > < span class = "lineno" > 217< / span >   < / div >
< div class = "line" > < a name = "l00218" > < / a > < span class = "lineno" > 218< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > *to_encode = < span class = "keyword" > nullptr< / span > ;< / div >
< div class = "line" > < a name = "l00219" > < / a > < span class = "lineno" > 219< / span >   < / div >
< div class = "line" > < a name = "l00220" > < / a > < span class = "lineno" > 220< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#afd13b471df293ae5a6e895704c69a4c3" > by_residual< / a > ) {< / div >
< div class = "line" > < a name = "l00221" > < / a > < span class = "lineno" > 221< / span >   < span class = "keywordtype" > float< / span > *residuals = < span class = "keyword" > new< / span > < span class = "keywordtype" > float< / span > [n * < a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > ];< / div >
< div class = "line" > < a name = "l00222" > < / a > < span class = "lineno" > 222< / span >   < span class = "comment" > // TODO: parallelize?< / span > < / div >
< div class = "line" > < a name = "l00223" > < / a > < span class = "lineno" > 223< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > size_t< / span > i = 0; i < n; i++) {< / div >
< div class = "line" > < a name = "l00224" > < / a > < span class = "lineno" > 224< / span >   < span class = "keywordflow" > if< / span > (idx[i] < 0)< / div >
< div class = "line" > < a name = "l00225" > < / a > < span class = "lineno" > 225< / span >   memset (residuals + i * d, 0, < span class = "keyword" > sizeof< / span > (*residuals) * d);< / div >
< div class = "line" > < a name = "l00226" > < / a > < span class = "lineno" > 226< / span >   < span class = "keywordflow" > else< / span > < / div >
< div class = "line" > < a name = "l00227" > < / a > < span class = "lineno" > 227< / span >   quantizer-> compute_residual (< / div >
< div class = "line" > < a name = "l00228" > < / a > < span class = "lineno" > 228< / span >   x + i * d, residuals + i * d, idx[i]);< / div >
< div class = "line" > < a name = "l00229" > < / a > < span class = "lineno" > 229< / span >   }< / div >
< div class = "line" > < a name = "l00230" > < / a > < span class = "lineno" > 230< / span >   to_encode = residuals;< / div >
< div class = "line" > < a name = "l00231" > < / a > < span class = "lineno" > 231< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00232" > < / a > < span class = "lineno" > 232< / span >   to_encode = x;< / div >
< div class = "line" > < a name = "l00233" > < / a > < span class = "lineno" > 233< / span >   }< / div >
< div class = "line" > < a name = "l00234" > < / a > < span class = "lineno" > 234< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#ae5a340ee5a4b1d35a565b167de2a2ef1" > compute_codes< / a > (to_encode, xcodes, n);< / div >
< div class = "line" > < a name = "l00235" > < / a > < span class = "lineno" > 235< / span >   < / div >
< div class = "line" > < a name = "l00236" > < / a > < span class = "lineno" > 236< / span >   < span class = "keywordtype" > double< / span > t2 = < a class = "code" href = "namespacefaiss.html#af2a71f7d5402ae02ce169a4cc83020eb" > getmillisecs< / a > ();< / div >
< div class = "line" > < a name = "l00237" > < / a > < span class = "lineno" > 237< / span >   < span class = "comment" > // TODO: parallelize?< / span > < / div >
< div class = "line" > < a name = "l00238" > < / a > < span class = "lineno" > 238< / span >   < span class = "keywordtype" > size_t< / span > n_ignore = 0;< / div >
< div class = "line" > < a name = "l00239" > < / a > < span class = "lineno" > 239< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > size_t< / span > i = 0; i < n; i++) {< / div >
< div class = "line" > < a name = "l00240" > < / a > < span class = "lineno" > 240< / span >   < a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > key = idx[i];< / div >
< div class = "line" > < a name = "l00241" > < / a > < span class = "lineno" > 241< / span >   < span class = "keywordflow" > if< / span > (key < 0) {< / div >
< div class = "line" > < a name = "l00242" > < / a > < span class = "lineno" > 242< / span >   n_ignore ++;< / div >
< div class = "line" > < a name = "l00243" > < / a > < span class = "lineno" > 243< / span >   < span class = "keywordflow" > if< / span > (residuals_2)< / div >
< div class = "line" > < a name = "l00244" > < / a > < span class = "lineno" > 244< / span >   memset (residuals_2, 0, < span class = "keyword" > sizeof< / span > (*residuals_2) * d);< / div >
< div class = "line" > < a name = "l00245" > < / a > < span class = "lineno" > 245< / span >   < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l00246" > < / a > < span class = "lineno" > 246< / span >   }< / div >
< div class = "line" > < a name = "l00247" > < / a > < span class = "lineno" > 247< / span >   < a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > < span class = "keywordtype" > id< / span > = xids ? xids[i] : < a class = "code" href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > ntotal< / a > + i;< / div >
< div class = "line" > < a name = "l00248" > < / a > < span class = "lineno" > 248< / span >   < a class = "code" href = "structfaiss_1_1IndexIVF.html#af16d325f5bef22b2e5f90ceea796e80d" > ids< / a > [key].push_back (< span class = "keywordtype" > id< / span > );< / div >
< div class = "line" > < a name = "l00249" > < / a > < span class = "lineno" > 249< / span >   uint8_t *code = xcodes + i * < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a31c6fb2faa4dadea4c0594338be7be90" > code_size< / a > ;< / div >
< div class = "line" > < a name = "l00250" > < / a > < span class = "lineno" > 250< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > size_t< / span > j = 0; j < < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a31c6fb2faa4dadea4c0594338be7be90" > code_size< / a > ; j++)< / div >
< div class = "line" > < a name = "l00251" > < / a > < span class = "lineno" > 251< / span >   codes[key].push_back (code[j]);< / div >
< div class = "line" > < a name = "l00252" > < / a > < span class = "lineno" > 252< / span >   < / div >
< div class = "line" > < a name = "l00253" > < / a > < span class = "lineno" > 253< / span >   < span class = "keywordflow" > if< / span > (residuals_2) {< / div >
< div class = "line" > < a name = "l00254" > < / a > < span class = "lineno" > 254< / span >   < span class = "keywordtype" > float< / span > *res2 = residuals_2 + i * < a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > ;< / div >
< div class = "line" > < a name = "l00255" > < / a > < span class = "lineno" > 255< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > *xi = to_encode + i * < a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > ;< / div >
< div class = "line" > < a name = "l00256" > < / a > < span class = "lineno" > 256< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#a7afbf9d96276f021981e99f064254208" > decode< / a > (code, res2);< / div >
< div class = "line" > < a name = "l00257" > < / a > < span class = "lineno" > 257< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > j = 0; j < < a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > ; j++)< / div >
< div class = "line" > < a name = "l00258" > < / a > < span class = "lineno" > 258< / span >   res2[j] = xi[j] - res2[j];< / div >
< div class = "line" > < a name = "l00259" > < / a > < span class = "lineno" > 259< / span >   }< / div >
< div class = "line" > < a name = "l00260" > < / a > < span class = "lineno" > 260< / span >   < / div >
< div class = "line" > < a name = "l00261" > < / a > < span class = "lineno" > 261< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "structfaiss_1_1IndexIVF.html#aedd0c14b5654295b291638ec7f9f9517" > maintain_direct_map< / a > )< / div >
< div class = "line" > < a name = "l00262" > < / a > < span class = "lineno" > 262< / span >   direct_map.push_back (key < < 32 | (< a class = "code" href = "structfaiss_1_1IndexIVF.html#af16d325f5bef22b2e5f90ceea796e80d" > ids< / a > [key].size() - 1));< / div >
< div class = "line" > < a name = "l00263" > < / a > < span class = "lineno" > 263< / span >   }< / div >
< div class = "line" > < a name = "l00264" > < / a > < span class = "lineno" > 264< / span >   < / div >
< div class = "line" > < a name = "l00265" > < / a > < span class = "lineno" > 265< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#afd13b471df293ae5a6e895704c69a4c3" > by_residual< / a > )< / div >
< div class = "line" > < a name = "l00266" > < / a > < span class = "lineno" > 266< / span >   < span class = "keyword" > delete< / span > [] to_encode;< / div >
2017-02-23 06:26:44 +08:00
< div class = "line" > < a name = "l00267" > < / a > < span class = "lineno" > 267< / span >   < / div >
2017-04-06 19:33:41 +08:00
< div class = "line" > < a name = "l00268" > < / a > < span class = "lineno" > 268< / span >   < span class = "keyword" > delete< / span > [] xcodes;< / div >
< div class = "line" > < a name = "l00269" > < / a > < span class = "lineno" > 269< / span >   < span class = "keywordflow" > if< / span > (!precomputed_idx)< / div >
< div class = "line" > < a name = "l00270" > < / a > < span class = "lineno" > 270< / span >   < span class = "keyword" > delete< / span > [] idx;< / div >
< div class = "line" > < a name = "l00271" > < / a > < span class = "lineno" > 271< / span >   < span class = "keywordtype" > double< / span > t3 = < a class = "code" href = "namespacefaiss.html#af2a71f7d5402ae02ce169a4cc83020eb" > getmillisecs< / a > ();< / div >
< div class = "line" > < a name = "l00272" > < / a > < span class = "lineno" > 272< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "structfaiss_1_1Index.html#a5590d847c5c2b958affd2a05e58a6f23" > verbose< / a > ) {< / div >
< div class = "line" > < a name = "l00273" > < / a > < span class = "lineno" > 273< / span >   < span class = "keywordtype" > char< / span > comment[100] = {0};< / div >
< div class = "line" > < a name = "l00274" > < / a > < span class = "lineno" > 274< / span >   < span class = "keywordflow" > if< / span > (n_ignore > 0)< / div >
< div class = "line" > < a name = "l00275" > < / a > < span class = "lineno" > 275< / span >   snprintf (comment, 100, < span class = "stringliteral" > " (%ld vectors ignored)" < / span > , n_ignore);< / div >
< div class = "line" > < a name = "l00276" > < / a > < span class = "lineno" > 276< / span >   printf(< span class = "stringliteral" > " add_core times: %.3f %.3f %.3f %s\n" < / span > ,< / div >
< div class = "line" > < a name = "l00277" > < / a > < span class = "lineno" > 277< / span >   t1 - t0, t2 - t1, t3 - t2, comment);< / div >
< div class = "line" > < a name = "l00278" > < / a > < span class = "lineno" > 278< / span >   }< / div >
< div class = "line" > < a name = "l00279" > < / a > < span class = "lineno" > 279< / span >   < a class = "code" href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > ntotal< / a > += n;< / div >
< div class = "line" > < a name = "l00280" > < / a > < span class = "lineno" > 280< / span >   }< / div >
< div class = "line" > < a name = "l00281" > < / a > < span class = "lineno" > 281< / span >   < / div >
< div class = "line" > < a name = "l00282" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexIVFPQ.html#a1df10e9e5f4ff0dabf283f19ad94bbd4" > 282< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a1df10e9e5f4ff0dabf283f19ad94bbd4" > IndexIVFPQ::reconstruct_n< / a > (< a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > i0, < a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > ni, < span class = "keywordtype" > float< / span > *recons)< span class = "keyword" > const< / span > < / div >
< div class = "line" > < a name = "l00283" > < / a > < span class = "lineno" > 283< / span >   < span class = "keyword" > < / span > {< / div >
< div class = "line" > < a name = "l00284" > < / a > < span class = "lineno" > 284< / span >   FAISS_ASSERT (ni == 0 || (i0 > = 0 & & i0 + ni < = < a class = "code" href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > ntotal< / a > ));< / div >
< div class = "line" > < a name = "l00285" > < / a > < span class = "lineno" > 285< / span >   < / div >
< div class = "line" > < a name = "l00286" > < / a > < span class = "lineno" > 286< / span >   std::vector< float> centroid (d);< / div >
< div class = "line" > < a name = "l00287" > < / a > < span class = "lineno" > 287< / span >   < / div >
< div class = "line" > < a name = "l00288" > < / a > < span class = "lineno" > 288< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > key = 0; key < < a class = "code" href = "structfaiss_1_1IndexIVF.html#ab38fde4c923abefc4185eb7450b5b95b" > nlist< / a > ; key++) {< / div >
< div class = "line" > < a name = "l00289" > < / a > < span class = "lineno" > 289< / span >   < span class = "keyword" > const< / span > std::vector< long> & idlist = < a class = "code" href = "structfaiss_1_1IndexIVF.html#af16d325f5bef22b2e5f90ceea796e80d" > ids< / a > [key];< / div >
< div class = "line" > < a name = "l00290" > < / a > < span class = "lineno" > 290< / span >   < span class = "keyword" > const< / span > uint8_t * code_line = codes[key].data();< / div >
< div class = "line" > < a name = "l00291" > < / a > < span class = "lineno" > 291< / span >   < / div >
< div class = "line" > < a name = "l00292" > < / a > < span class = "lineno" > 292< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > long< / span > ofs = 0; ofs < idlist.size(); ofs++) {< / div >
< div class = "line" > < a name = "l00293" > < / a > < span class = "lineno" > 293< / span >   < span class = "keywordtype" > long< / span > < span class = "keywordtype" > id< / span > = idlist[ofs];< / div >
< div class = "line" > < a name = "l00294" > < / a > < span class = "lineno" > 294< / span >   < span class = "keywordflow" > if< / span > (!(< span class = "keywordtype" > id< / span > > = i0 & & < span class = "keywordtype" > id< / span > < i0 + ni)) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l00295" > < / a > < span class = "lineno" > 295< / span >   < span class = "keywordtype" > float< / span > *r = recons + d * (< span class = "keywordtype" > id< / span > - i0);< / div >
< div class = "line" > < a name = "l00296" > < / a > < span class = "lineno" > 296< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#afd13b471df293ae5a6e895704c69a4c3" > by_residual< / a > ) {< / div >
< div class = "line" > < a name = "l00297" > < / a > < span class = "lineno" > 297< / span >   quantizer-> reconstruct (key, centroid.data());< / div >
< div class = "line" > < a name = "l00298" > < / a > < span class = "lineno" > 298< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#a7afbf9d96276f021981e99f064254208" > decode< / a > (code_line + ofs * < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#aa61330eadb84772b71018b093773a5f9" > code_size< / a > , r);< / div >
< div class = "line" > < a name = "l00299" > < / a > < span class = "lineno" > 299< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > j = 0; j < < a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > ; j++) {< / div >
< div class = "line" > < a name = "l00300" > < / a > < span class = "lineno" > 300< / span >   r[j] += centroid[j];< / div >
< div class = "line" > < a name = "l00301" > < / a > < span class = "lineno" > 301< / span >   }< / div >
< div class = "line" > < a name = "l00302" > < / a > < span class = "lineno" > 302< / span >   }< / div >
< div class = "line" > < a name = "l00303" > < / a > < span class = "lineno" > 303< / span >   < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00304" > < / a > < span class = "lineno" > 304< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#a7afbf9d96276f021981e99f064254208" > decode< / a > (code_line + ofs * < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#aa61330eadb84772b71018b093773a5f9" > code_size< / a > , r);< / div >
< div class = "line" > < a name = "l00305" > < / a > < span class = "lineno" > 305< / span >   }< / div >
< div class = "line" > < a name = "l00306" > < / a > < span class = "lineno" > 306< / span >   }< / div >
< div class = "line" > < a name = "l00307" > < / a > < span class = "lineno" > 307< / span >   }< / div >
< div class = "line" > < a name = "l00308" > < / a > < span class = "lineno" > 308< / span >   }< / div >
2017-03-21 01:33:21 +08:00
< div class = "line" > < a name = "l00309" > < / a > < span class = "lineno" > 309< / span >   < / div >
< div class = "line" > < a name = "l00310" > < / a > < span class = "lineno" > 310< / span >   < / div >
2017-04-06 19:33:41 +08:00
< div class = "line" > < a name = "l00311" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexIVFPQ.html#a28ce697b1381eb7e7d7d25774a25e175" > 311< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a28ce697b1381eb7e7d7d25774a25e175" > IndexIVFPQ::reconstruct< / a > (< a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > key, < span class = "keywordtype" > float< / span > * recons)< span class = "keyword" > const< / span > < / div >
< div class = "line" > < a name = "l00312" > < / a > < span class = "lineno" > 312< / span >   < span class = "keyword" > < / span > {< / div >
< div class = "line" > < a name = "l00313" > < / a > < span class = "lineno" > 313< / span >   FAISS_ASSERT (direct_map.size() == < a class = "code" href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > ntotal< / a > );< / div >
< div class = "line" > < a name = "l00314" > < / a > < span class = "lineno" > 314< / span >   < span class = "keywordtype" > int< / span > list_no = direct_map[key] > > 32;< / div >
< div class = "line" > < a name = "l00315" > < / a > < span class = "lineno" > 315< / span >   < span class = "keywordtype" > int< / span > ofs = direct_map[key] & 0xffffffff;< / div >
< div class = "line" > < a name = "l00316" > < / a > < span class = "lineno" > 316< / span >   < / div >
< div class = "line" > < a name = "l00317" > < / a > < span class = "lineno" > 317< / span >   quantizer-> reconstruct (list_no, recons);< / div >
< div class = "line" > < a name = "l00318" > < / a > < span class = "lineno" > 318< / span >   < span class = "keyword" > const< / span > uint8_t * code = & (codes[list_no][ofs * < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#aa61330eadb84772b71018b093773a5f9" > code_size< / a > ]);< / div >
< div class = "line" > < a name = "l00319" > < / a > < span class = "lineno" > 319< / span >   < / div >
< div class = "line" > < a name = "l00320" > < / a > < span class = "lineno" > 320< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > size_t< / span > m = 0; m < < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#a83600e328893ce5f41fe459f5a3acf41" > M< / a > ; m++) {< / div >
< div class = "line" > < a name = "l00321" > < / a > < span class = "lineno" > 321< / span >   < span class = "keywordtype" > float< / span > * out = recons + m * < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#a467b451ca203544e42c250e4be65b983" > dsub< / a > ;< / div >
< div class = "line" > < a name = "l00322" > < / a > < span class = "lineno" > 322< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > * cent = < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#a4f0f33c011dffe633a1748a48a082c22" > get_centroids< / a > (m, code[m]);< / div >
< div class = "line" > < a name = "l00323" > < / a > < span class = "lineno" > 323< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > size_t< / span > i = 0; i < < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#a467b451ca203544e42c250e4be65b983" > dsub< / a > ; i++) {< / div >
< div class = "line" > < a name = "l00324" > < / a > < span class = "lineno" > 324< / span >   out[i] += cent[i];< / div >
< div class = "line" > < a name = "l00325" > < / a > < span class = "lineno" > 325< / span >   }< / div >
< div class = "line" > < a name = "l00326" > < / a > < span class = "lineno" > 326< / span >   }< / div >
< div class = "line" > < a name = "l00327" > < / a > < span class = "lineno" > 327< / span >   }< / div >
< div class = "line" > < a name = "l00328" > < / a > < span class = "lineno" > 328< / span >   < / div >
< div class = "line" > < a name = "l00329" > < / a > < span class = "lineno" > 329< / span >   < / div >
< div class = "line" > < a name = "l00330" > < / a > < span class = "lineno" > 330< / span >   < / div >
< div class = "line" > < a name = "l00331" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexIVFPQ.html#a6b8964e2da609a9261a8a35ae347ecb2" > 331< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a6b8964e2da609a9261a8a35ae347ecb2" > IndexIVFPQ::merge_from_residuals< / a > (< a class = "code" href = "structfaiss_1_1IndexIVF.html" > IndexIVF< / a > & other_in)< / div >
< div class = "line" > < a name = "l00332" > < / a > < span class = "lineno" > 332< / span >   {< / div >
< div class = "line" > < a name = "l00333" > < / a > < span class = "lineno" > 333< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html" > IndexIVFPQ< / a > & other = < span class = "keyword" > dynamic_cast< < / span > < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html" > IndexIVFPQ< / a > & < span class = "keyword" > > < / span > (other_in);< / div >
< div class = "line" > < a name = "l00334" > < / a > < span class = "lineno" > 334< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > i = 0; i < < a class = "code" href = "structfaiss_1_1IndexIVF.html#ab38fde4c923abefc4185eb7450b5b95b" > nlist< / a > ; i++) {< / div >
< div class = "line" > < a name = "l00335" > < / a > < span class = "lineno" > 335< / span >   codes[i].insert (codes[i].end(),< / div >
< div class = "line" > < a name = "l00336" > < / a > < span class = "lineno" > 336< / span >   other.codes[i].begin(), other.codes[i].end());< / div >
< div class = "line" > < a name = "l00337" > < / a > < span class = "lineno" > 337< / span >   other.codes[i].clear();< / div >
< div class = "line" > < a name = "l00338" > < / a > < span class = "lineno" > 338< / span >   }< / div >
< div class = "line" > < a name = "l00339" > < / a > < span class = "lineno" > 339< / span >   }< / div >
< div class = "line" > < a name = "l00340" > < / a > < span class = "lineno" > 340< / span >   < / div >
< div class = "line" > < a name = "l00341" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexIVFPQ.html#af278c710f6c7605f59e1da48a6dea37a" > 341< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#af278c710f6c7605f59e1da48a6dea37a" > IndexIVFPQ::copy_subset_to< / a > (< a class = "code" href = "structfaiss_1_1IndexIVFPQ.html" > IndexIVFPQ< / a > & other, < span class = "keywordtype" > int< / span > subset_type,< / div >
< div class = "line" > < a name = "l00342" > < / a > < span class = "lineno" > 342< / span >   < span class = "keywordtype" > long< / span > a1, < span class = "keywordtype" > long< / span > a2)< span class = "keyword" > const< / span > < / div >
< div class = "line" > < a name = "l00343" > < / a > < span class = "lineno" > 343< / span >   < span class = "keyword" > < / span > {< / div >
< div class = "line" > < a name = "l00344" > < / a > < span class = "lineno" > 344< / span >   FAISS_ASSERT (nlist == other.< a class = "code" href = "structfaiss_1_1IndexIVF.html#ab38fde4c923abefc4185eb7450b5b95b" > nlist< / a > );< / div >
< div class = "line" > < a name = "l00345" > < / a > < span class = "lineno" > 345< / span >   FAISS_ASSERT (!other.< a class = "code" href = "structfaiss_1_1IndexIVF.html#aedd0c14b5654295b291638ec7f9f9517" > maintain_direct_map< / a > );< / div >
< div class = "line" > < a name = "l00346" > < / a > < span class = "lineno" > 346< / span >   < span class = "keywordtype" > size_t< / span > < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a31c6fb2faa4dadea4c0594338be7be90" > code_size< / a > = < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#aa61330eadb84772b71018b093773a5f9" > code_size< / a > ;< / div >
< div class = "line" > < a name = "l00347" > < / a > < span class = "lineno" > 347< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > long< / span > list_no = 0; list_no < < a class = "code" href = "structfaiss_1_1IndexIVF.html#ab38fde4c923abefc4185eb7450b5b95b" > nlist< / a > ; list_no++) {< / div >
< div class = "line" > < a name = "l00348" > < / a > < span class = "lineno" > 348< / span >   < span class = "keyword" > const< / span > std::vector< idx_t> & ids_in = < a class = "code" href = "structfaiss_1_1IndexIVF.html#af16d325f5bef22b2e5f90ceea796e80d" > ids< / a > [list_no];< / div >
< div class = "line" > < a name = "l00349" > < / a > < span class = "lineno" > 349< / span >   std::vector< idx_t> & ids_out = other.< a class = "code" href = "structfaiss_1_1IndexIVF.html#af16d325f5bef22b2e5f90ceea796e80d" > ids< / a > [list_no];< / div >
< div class = "line" > < a name = "l00350" > < / a > < span class = "lineno" > 350< / span >   < span class = "keyword" > const< / span > std::vector< uint8_t> & codes_in = codes[list_no];< / div >
< div class = "line" > < a name = "l00351" > < / a > < span class = "lineno" > 351< / span >   std::vector< uint8_t> & codes_out = other.codes[list_no];< / div >
< div class = "line" > < a name = "l00352" > < / a > < span class = "lineno" > 352< / span >   < / div >
< div class = "line" > < a name = "l00353" > < / a > < span class = "lineno" > 353< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > long< / span > i = 0; i < ids_in.size(); i++) {< / div >
< div class = "line" > < a name = "l00354" > < / a > < span class = "lineno" > 354< / span >   < a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > < span class = "keywordtype" > id< / span > = ids_in[i];< / div >
< div class = "line" > < a name = "l00355" > < / a > < span class = "lineno" > 355< / span >   < span class = "keywordflow" > if< / span > (subset_type == 0 & & a1 < = < span class = "keywordtype" > id< / span > & & < span class = "keywordtype" > id< / span > < a2) {< / div >
< div class = "line" > < a name = "l00356" > < / a > < span class = "lineno" > 356< / span >   ids_out.push_back (< span class = "keywordtype" > id< / span > );< / div >
< div class = "line" > < a name = "l00357" > < / a > < span class = "lineno" > 357< / span >   codes_out.insert (codes_out.end(),< / div >
< div class = "line" > < a name = "l00358" > < / a > < span class = "lineno" > 358< / span >   codes_in.begin() + i * < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a31c6fb2faa4dadea4c0594338be7be90" > code_size< / a > ,< / div >
< div class = "line" > < a name = "l00359" > < / a > < span class = "lineno" > 359< / span >   codes_in.begin() + (i + 1) * code_size);< / div >
< div class = "line" > < a name = "l00360" > < / a > < span class = "lineno" > 360< / span >   other.< a class = "code" href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > ntotal< / a > ++;< / div >
< div class = "line" > < a name = "l00361" > < / a > < span class = "lineno" > 361< / span >   }< / div >
< div class = "line" > < a name = "l00362" > < / a > < span class = "lineno" > 362< / span >   }< / div >
< div class = "line" > < a name = "l00363" > < / a > < span class = "lineno" > 363< / span >   }< / div >
< div class = "line" > < a name = "l00364" > < / a > < span class = "lineno" > 364< / span >   }< / div >
< div class = "line" > < a name = "l00365" > < / a > < span class = "lineno" > 365< / span >   < / div >
< div class = "line" > < a name = "l00366" > < / a > < span class = "lineno" > 366< / span >   < / div >
< div class = "line" > < a name = "l00367" > < / a > < span class = "lineno" > 367< / span >   < / div >
< div class = "line" > < a name = "l00368" > < / a > < span class = "lineno" > 368< / span >   < / div >
< div class = "line" > < a name = "l00369" > < / a > < span class = "lineno" > 369< / span >   < span class = "comment" > < / span > < / div >
< div class = "line" > < a name = "l00370" > < / a > < span class = "lineno" > 370< / span >   < span class = "comment" > /** Precomputed tables for residuals< / span > < / div >
< div class = "line" > < a name = "l00371" > < / a > < span class = "lineno" > 371< / span >   < span class = "comment" > *< / span > < / div >
< div class = "line" > < a name = "l00372" > < / a > < span class = "lineno" > 372< / span >   < span class = "comment" > * During IVFPQ search with by_residual, we compute< / span > < / div >
< div class = "line" > < a name = "l00373" > < / a > < span class = "lineno" > 373< / span >   < span class = "comment" > *< / span > < / div >
< div class = "line" > < a name = "l00374" > < / a > < span class = "lineno" > 374< / span >   < span class = "comment" > * d = || x - y_C - y_R ||^2< / span > < / div >
2017-03-21 01:33:21 +08:00
< div class = "line" > < a name = "l00375" > < / a > < span class = "lineno" > 375< / span >   < span class = "comment" > *< / span > < / div >
2017-04-06 19:33:41 +08:00
< div class = "line" > < a name = "l00376" > < / a > < span class = "lineno" > 376< / span >   < span class = "comment" > * where x is the query vector, y_C the coarse centroid, y_R the< / span > < / div >
< div class = "line" > < a name = "l00377" > < / a > < span class = "lineno" > 377< / span >   < span class = "comment" > * refined PQ centroid. The expression can be decomposed as:< / span > < / div >
< div class = "line" > < a name = "l00378" > < / a > < span class = "lineno" > 378< / span >   < span class = "comment" > *< / span > < / div >
< div class = "line" > < a name = "l00379" > < / a > < span class = "lineno" > 379< / span >   < span class = "comment" > * d = || x - y_C ||^2 + || y_R ||^2 + 2 * (y_C|y_R) - 2 * (x|y_R)< / span > < / div >
< div class = "line" > < a name = "l00380" > < / a > < span class = "lineno" > 380< / span >   < span class = "comment" > * --------------- --------------------------- -------< / span > < / div >
< div class = "line" > < a name = "l00381" > < / a > < span class = "lineno" > 381< / span >   < span class = "comment" > * term 1 term 2 term 3< / span > < / div >
< div class = "line" > < a name = "l00382" > < / a > < span class = "lineno" > 382< / span >   < span class = "comment" > *< / span > < / div >
< div class = "line" > < a name = "l00383" > < / a > < span class = "lineno" > 383< / span >   < span class = "comment" > * When using multiprobe, we use the following decomposition:< / span > < / div >
< div class = "line" > < a name = "l00384" > < / a > < span class = "lineno" > 384< / span >   < span class = "comment" > * - term 1 is the distance to the coarse centroid, that is computed< / span > < / div >
< div class = "line" > < a name = "l00385" > < / a > < span class = "lineno" > 385< / span >   < span class = "comment" > * during the 1st stage search.< / span > < / div >
< div class = "line" > < a name = "l00386" > < / a > < span class = "lineno" > 386< / span >   < span class = "comment" > * - term 2 can be precomputed, as it does not involve x. However,< / span > < / div >
< div class = "line" > < a name = "l00387" > < / a > < span class = "lineno" > 387< / span >   < span class = "comment" > * because of the PQ, it needs nlist * M * ksub storage. This is why< / span > < / div >
< div class = "line" > < a name = "l00388" > < / a > < span class = "lineno" > 388< / span >   < span class = "comment" > * use_precomputed_table is off by default< / span > < / div >
< div class = "line" > < a name = "l00389" > < / a > < span class = "lineno" > 389< / span >   < span class = "comment" > * - term 3 is the classical non-residual distance table.< / span > < / div >
< div class = "line" > < a name = "l00390" > < / a > < span class = "lineno" > 390< / span >   < span class = "comment" > *< / span > < / div >
< div class = "line" > < a name = "l00391" > < / a > < span class = "lineno" > 391< / span >   < span class = "comment" > * Since y_R defined by a product quantizer, it is split across< / span > < / div >
< div class = "line" > < a name = "l00392" > < / a > < span class = "lineno" > 392< / span >   < span class = "comment" > * subvectors and stored separately for each subvector. If the coarse< / span > < / div >
< div class = "line" > < a name = "l00393" > < / a > < span class = "lineno" > 393< / span >   < span class = "comment" > * quantizer is a MultiIndexQuantizer then the table can be stored< / span > < / div >
< div class = "line" > < a name = "l00394" > < / a > < span class = "lineno" > 394< / span >   < span class = "comment" > * more compactly.< / span > < / div >
< div class = "line" > < a name = "l00395" > < / a > < span class = "lineno" > 395< / span >   < span class = "comment" > *< / span > < / div >
< div class = "line" > < a name = "l00396" > < / a > < span class = "lineno" > 396< / span >   < span class = "comment" > * At search time, the tables for term 2 and term 3 are added up. This< / span > < / div >
< div class = "line" > < a name = "l00397" > < / a > < span class = "lineno" > 397< / span >   < span class = "comment" > * is faster when the length of the lists is > ksub * M.< / span > < / div >
< div class = "line" > < a name = "l00398" > < / a > < span class = "lineno" > 398< / span >   < span class = "comment" > */< / span > < / div >
< div class = "line" > < a name = "l00399" > < / a > < span class = "lineno" > 399< / span >   < / div >
< div class = "line" > < a name = "l00400" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexIVFPQ.html#ad99c215aeaf92e995cb97f4044c4d267" > 400< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#ad99c215aeaf92e995cb97f4044c4d267" > IndexIVFPQ::precompute_table< / a > ()< / div >
< div class = "line" > < a name = "l00401" > < / a > < span class = "lineno" > 401< / span >   {< / div >
< div class = "line" > < a name = "l00402" > < / a > < span class = "lineno" > 402< / span >   < / div >
< div class = "line" > < a name = "l00403" > < / a > < span class = "lineno" > 403< / span >   < / div >
< div class = "line" > < a name = "l00404" > < / a > < span class = "lineno" > 404< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a1c66ff073c18a1edbe8444c24d870583" > use_precomputed_table< / a > == 0) { < span class = "comment" > // then choose the type of table< / span > < / div >
< div class = "line" > < a name = "l00405" > < / a > < span class = "lineno" > 405< / span >   < span class = "keywordflow" > if< / span > (quantizer-> metric_type == METRIC_INNER_PRODUCT) {< / div >
< div class = "line" > < a name = "l00406" > < / a > < span class = "lineno" > 406< / span >   fprintf(stderr, < span class = "stringliteral" > " IndexIVFPQ::precompute_table: WARN precomputed " < / span > < / div >
< div class = "line" > < a name = "l00407" > < / a > < span class = "lineno" > 407< / span >   < span class = "stringliteral" > " tables not supported for inner product quantizers\n" < / span > );< / div >
< div class = "line" > < a name = "l00408" > < / a > < span class = "lineno" > 408< / span >   < span class = "keywordflow" > return< / span > ;< / div >
< div class = "line" > < a name = "l00409" > < / a > < span class = "lineno" > 409< / span >   }< / div >
< div class = "line" > < a name = "l00410" > < / a > < span class = "lineno" > 410< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "structfaiss_1_1MultiIndexQuantizer.html" > MultiIndexQuantizer< / a > *miq =< / div >
< div class = "line" > < a name = "l00411" > < / a > < span class = "lineno" > 411< / span >   < span class = "keyword" > dynamic_cast< < / span > < span class = "keyword" > const < / span > < a class = "code" href = "structfaiss_1_1MultiIndexQuantizer.html" > MultiIndexQuantizer< / a > *< span class = "keyword" > > < / span > (< a class = "code" href = "structfaiss_1_1IndexIVF.html#a4b40cc7a70dff41196a3b8769586667a" > quantizer< / a > );< / div >
< div class = "line" > < a name = "l00412" > < / a > < span class = "lineno" > 412< / span >   < span class = "keywordflow" > if< / span > (miq & & < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#a83600e328893ce5f41fe459f5a3acf41" > M< / a > % miq-> pq.< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#a83600e328893ce5f41fe459f5a3acf41" > M< / a > == 0)< / div >
< div class = "line" > < a name = "l00413" > < / a > < span class = "lineno" > 413< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a1c66ff073c18a1edbe8444c24d870583" > use_precomputed_table< / a > = 2;< / div >
< div class = "line" > < a name = "l00414" > < / a > < span class = "lineno" > 414< / span >   < span class = "keywordflow" > else< / span > < / div >
< div class = "line" > < a name = "l00415" > < / a > < span class = "lineno" > 415< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a1c66ff073c18a1edbe8444c24d870583" > use_precomputed_table< / a > = 1;< / div >
< div class = "line" > < a name = "l00416" > < / a > < span class = "lineno" > 416< / span >   } < span class = "comment" > // otherwise assume user has set appropriate flag on input< / span > < / div >
< div class = "line" > < a name = "l00417" > < / a > < span class = "lineno" > 417< / span >   < / div >
< div class = "line" > < a name = "l00418" > < / a > < span class = "lineno" > 418< / span >   < / div >
< div class = "line" > < a name = "l00419" > < / a > < span class = "lineno" > 419< / span >   < span class = "comment" > // squared norms of the PQ centroids< / span > < / div >
< div class = "line" > < a name = "l00420" > < / a > < span class = "lineno" > 420< / span >   std::vector< float> r_norms (< a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#a83600e328893ce5f41fe459f5a3acf41" > M< / a > * < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#a0feee45e4151547b7a0444c14bad398f" > ksub< / a > , NAN);< / div >
< div class = "line" > < a name = "l00421" > < / a > < span class = "lineno" > 421< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > m = 0; m < < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#a83600e328893ce5f41fe459f5a3acf41" > M< / a > ; m++)< / div >
< div class = "line" > < a name = "l00422" > < / a > < span class = "lineno" > 422< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > j = 0; j < < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#a0feee45e4151547b7a0444c14bad398f" > ksub< / a > ; j++)< / div >
< div class = "line" > < a name = "l00423" > < / a > < span class = "lineno" > 423< / span >   r_norms [m * < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#a0feee45e4151547b7a0444c14bad398f" > ksub< / a > + j] =< / div >
< div class = "line" > < a name = "l00424" > < / a > < span class = "lineno" > 424< / span >   < a class = "code" href = "namespacefaiss.html#a7a49180ebf10e643217bbce5862c7f84" > fvec_norm_L2sqr< / a > (< a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#a4f0f33c011dffe633a1748a48a082c22" > get_centroids< / a > (m, j), < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#a467b451ca203544e42c250e4be65b983" > dsub< / a > );< / div >
< div class = "line" > < a name = "l00425" > < / a > < span class = "lineno" > 425< / span >   < / div >
< div class = "line" > < a name = "l00426" > < / a > < span class = "lineno" > 426< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a1c66ff073c18a1edbe8444c24d870583" > use_precomputed_table< / a > == 1) {< / div >
< div class = "line" > < a name = "l00427" > < / a > < span class = "lineno" > 427< / span >   < / div >
< div class = "line" > < a name = "l00428" > < / a > < span class = "lineno" > 428< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a9b310195d610c3e326471b3758206b59" > precomputed_table< / a > .resize (nlist * < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#a83600e328893ce5f41fe459f5a3acf41" > M< / a > * < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#a0feee45e4151547b7a0444c14bad398f" > ksub< / a > );< / div >
< div class = "line" > < a name = "l00429" > < / a > < span class = "lineno" > 429< / span >   std::vector< float> centroid (d);< / div >
< div class = "line" > < a name = "l00430" > < / a > < span class = "lineno" > 430< / span >   < / div >
< div class = "line" > < a name = "l00431" > < / a > < span class = "lineno" > 431< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > size_t< / span > i = 0; i < < a class = "code" href = "structfaiss_1_1IndexIVF.html#ab38fde4c923abefc4185eb7450b5b95b" > nlist< / a > ; i++) {< / div >
< div class = "line" > < a name = "l00432" > < / a > < span class = "lineno" > 432< / span >   quantizer-> reconstruct (i, centroid.data());< / div >
< div class = "line" > < a name = "l00433" > < / a > < span class = "lineno" > 433< / span >   < / div >
< div class = "line" > < a name = "l00434" > < / a > < span class = "lineno" > 434< / span >   < span class = "keywordtype" > float< / span > *tab = & < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a9b310195d610c3e326471b3758206b59" > precomputed_table< / a > [i * < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#a83600e328893ce5f41fe459f5a3acf41" > M< / a > * < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#a0feee45e4151547b7a0444c14bad398f" > ksub< / a > ];< / div >
< div class = "line" > < a name = "l00435" > < / a > < span class = "lineno" > 435< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > pq< / a > .compute_inner_prod_table (centroid.data(), tab);< / div >
< div class = "line" > < a name = "l00436" > < / a > < span class = "lineno" > 436< / span >   < a class = "code" href = "namespacefaiss.html#a40328c31abd0bbba5bd95d7de951e847" > fvec_madd< / a > (< a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#a83600e328893ce5f41fe459f5a3acf41" > M< / a > * < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#a0feee45e4151547b7a0444c14bad398f" > ksub< / a > , r_norms.data(), 2.0, tab, tab);< / div >
< div class = "line" > < a name = "l00437" > < / a > < span class = "lineno" > 437< / span >   }< / div >
< div class = "line" > < a name = "l00438" > < / a > < span class = "lineno" > 438< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (< a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a1c66ff073c18a1edbe8444c24d870583" > use_precomputed_table< / a > == 2) {< / div >
< div class = "line" > < a name = "l00439" > < / a > < span class = "lineno" > 439< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "structfaiss_1_1MultiIndexQuantizer.html" > MultiIndexQuantizer< / a > *miq =< / div >
< div class = "line" > < a name = "l00440" > < / a > < span class = "lineno" > 440< / span >   < span class = "keyword" > dynamic_cast< < / span > < span class = "keyword" > const < / span > < a class = "code" href = "structfaiss_1_1MultiIndexQuantizer.html" > MultiIndexQuantizer< / a > *< span class = "keyword" > > < / span > (< a class = "code" href = "structfaiss_1_1IndexIVF.html#a4b40cc7a70dff41196a3b8769586667a" > quantizer< / a > );< / div >
< div class = "line" > < a name = "l00441" > < / a > < span class = "lineno" > 441< / span >   FAISS_ASSERT (miq);< / div >
< div class = "line" > < a name = "l00442" > < / a > < span class = "lineno" > 442< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "structfaiss_1_1ProductQuantizer.html" > ProductQuantizer< / a > & cpq = miq-> pq;< / div >
< div class = "line" > < a name = "l00443" > < / a > < span class = "lineno" > 443< / span >   FAISS_ASSERT (< a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#a83600e328893ce5f41fe459f5a3acf41" > M< / a > % cpq.< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#a83600e328893ce5f41fe459f5a3acf41" > M< / a > == 0);< / div >
< div class = "line" > < a name = "l00444" > < / a > < span class = "lineno" > 444< / span >   < / div >
< div class = "line" > < a name = "l00445" > < / a > < span class = "lineno" > 445< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a9b310195d610c3e326471b3758206b59" > precomputed_table< / a > .resize(cpq.< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#a0feee45e4151547b7a0444c14bad398f" > ksub< / a > * < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#a83600e328893ce5f41fe459f5a3acf41" > M< / a > * < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#a0feee45e4151547b7a0444c14bad398f" > ksub< / a > );< / div >
< div class = "line" > < a name = "l00446" > < / a > < span class = "lineno" > 446< / span >   < / div >
< div class = "line" > < a name = "l00447" > < / a > < span class = "lineno" > 447< / span >   < span class = "comment" > // reorder PQ centroid table< / span > < / div >
< div class = "line" > < a name = "l00448" > < / a > < span class = "lineno" > 448< / span >   std::vector< float> centroids (d * cpq.< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#a0feee45e4151547b7a0444c14bad398f" > ksub< / a > , NAN);< / div >
< div class = "line" > < a name = "l00449" > < / a > < span class = "lineno" > 449< / span >   < / div >
< div class = "line" > < a name = "l00450" > < / a > < span class = "lineno" > 450< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > m = 0; m < cpq.< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#a83600e328893ce5f41fe459f5a3acf41" > M< / a > ; m++) {< / div >
< div class = "line" > < a name = "l00451" > < / a > < span class = "lineno" > 451< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > size_t< / span > i = 0; i < cpq.< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#a0feee45e4151547b7a0444c14bad398f" > ksub< / a > ; i++) {< / div >
< div class = "line" > < a name = "l00452" > < / a > < span class = "lineno" > 452< / span >   memcpy (centroids.data() + i * d + m * cpq.< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#a467b451ca203544e42c250e4be65b983" > dsub< / a > ,< / div >
< div class = "line" > < a name = "l00453" > < / a > < span class = "lineno" > 453< / span >   cpq.< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#a4f0f33c011dffe633a1748a48a082c22" > get_centroids< / a > (m, i),< / div >
< div class = "line" > < a name = "l00454" > < / a > < span class = "lineno" > 454< / span >   < span class = "keyword" > sizeof< / span > (*centroids.data()) * cpq.< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#a467b451ca203544e42c250e4be65b983" > dsub< / a > );< / div >
< div class = "line" > < a name = "l00455" > < / a > < span class = "lineno" > 455< / span >   }< / div >
< div class = "line" > < a name = "l00456" > < / a > < span class = "lineno" > 456< / span >   }< / div >
< div class = "line" > < a name = "l00457" > < / a > < span class = "lineno" > 457< / span >   < / div >
< div class = "line" > < a name = "l00458" > < / a > < span class = "lineno" > 458< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > pq< / a > .compute_inner_prod_tables (cpq.< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#a0feee45e4151547b7a0444c14bad398f" > ksub< / a > , centroids.data (),< / div >
< div class = "line" > < a name = "l00459" > < / a > < span class = "lineno" > 459< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a9b310195d610c3e326471b3758206b59" > precomputed_table< / a > .data ());< / div >
< div class = "line" > < a name = "l00460" > < / a > < span class = "lineno" > 460< / span >   < / div >
< div class = "line" > < a name = "l00461" > < / a > < span class = "lineno" > 461< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > size_t< / span > i = 0; i < cpq.< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#a0feee45e4151547b7a0444c14bad398f" > ksub< / a > ; i++) {< / div >
< div class = "line" > < a name = "l00462" > < / a > < span class = "lineno" > 462< / span >   < span class = "keywordtype" > float< / span > *tab = & < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a9b310195d610c3e326471b3758206b59" > precomputed_table< / a > [i * < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#a83600e328893ce5f41fe459f5a3acf41" > M< / a > * < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#a0feee45e4151547b7a0444c14bad398f" > ksub< / a > ];< / div >
< div class = "line" > < a name = "l00463" > < / a > < span class = "lineno" > 463< / span >   < a class = "code" href = "namespacefaiss.html#a40328c31abd0bbba5bd95d7de951e847" > fvec_madd< / a > (< a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#a83600e328893ce5f41fe459f5a3acf41" > M< / a > * < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#a0feee45e4151547b7a0444c14bad398f" > ksub< / a > , r_norms.data(), 2.0, tab, tab);< / div >
< div class = "line" > < a name = "l00464" > < / a > < span class = "lineno" > 464< / span >   }< / div >
< div class = "line" > < a name = "l00465" > < / a > < span class = "lineno" > 465< / span >   < / div >
< div class = "line" > < a name = "l00466" > < / a > < span class = "lineno" > 466< / span >   }< / div >
< div class = "line" > < a name = "l00467" > < / a > < span class = "lineno" > 467< / span >   }< / div >
< div class = "line" > < a name = "l00468" > < / a > < span class = "lineno" > 468< / span >   < / div >
< div class = "line" > < a name = "l00469" > < / a > < span class = "lineno" > 469< / span >   < span class = "keyword" > namespace < / span > {< / div >
< div class = "line" > < a name = "l00470" > < / a > < span class = "lineno" > 470< / span >   < / div >
< div class = "line" > < a name = "l00471" > < / a > < span class = "lineno" > 471< / span >   < span class = "keyword" > static< / span > uint64_t get_cycles () {< / div >
< div class = "line" > < a name = "l00472" > < / a > < span class = "lineno" > 472< / span >   uint32_t high, low;< / div >
< div class = "line" > < a name = "l00473" > < / a > < span class = "lineno" > 473< / span >   < span class = "keyword" > asm< / span > < span class = "keyword" > volatile< / span > (< span class = "stringliteral" > " rdtsc \n\t" < / span > < / div >
< div class = "line" > < a name = "l00474" > < / a > < span class = "lineno" > 474< / span >   : < span class = "stringliteral" > " =a" < / span > (low),< / div >
< div class = "line" > < a name = "l00475" > < / a > < span class = "lineno" > 475< / span >   < span class = "stringliteral" > " =d" < / span > (high));< / div >
< div class = "line" > < a name = "l00476" > < / a > < span class = "lineno" > 476< / span >   < span class = "keywordflow" > return< / span > ((uint64_t)high < < 32) | (low);< / div >
< div class = "line" > < a name = "l00477" > < / a > < span class = "lineno" > 477< / span >   }< / div >
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< div class = "line" > < a name = "l00478" > < / a > < span class = "lineno" > 478< / span >   < / div >
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< div class = "line" > < a name = "l00479" > < / a > < span class = "lineno" > 479< / span >   < span class = "preprocessor" > #define TIC t0 = get_cycles()< / span > < / div >
< div class = "line" > < a name = "l00480" > < / a > < span class = "lineno" > 480< / span >   < span class = "preprocessor" > < / span > < span class = "preprocessor" > #define TOC get_cycles () - t0< / span > < / div >
< div class = "line" > < a name = "l00481" > < / a > < span class = "lineno" > 481< / span >   < span class = "preprocessor" > < / span > < / div >
< div class = "line" > < a name = "l00482" > < / a > < span class = "lineno" > 482< / span >   < / div >
< div class = "line" > < a name = "l00483" > < / a > < span class = "lineno" > 483< / span >   < span class = "comment" > < / span > < / div >
< div class = "line" > < a name = "l00484" > < / a > < span class = "lineno" > 484< / span >   < span class = "comment" > /** QueryTables manages the various ways of searching an< / span > < / div >
< div class = "line" > < a name = "l00485" > < / a > < span class = "lineno" > 485< / span >   < span class = "comment" > * IndexIVFPQ. The code contains a lot of branches, depending on:< / span > < / div >
< div class = "line" > < a name = "l00486" > < / a > < span class = "lineno" > 486< / span >   < span class = "comment" > * - metric_type: are we computing L2 or Inner product similarity?< / span > < / div >
< div class = "line" > < a name = "l00487" > < / a > < span class = "lineno" > 487< / span >   < span class = "comment" > * - by_residual: do we encode raw vectors or residuals?< / span > < / div >
< div class = "line" > < a name = "l00488" > < / a > < span class = "lineno" > 488< / span >   < span class = "comment" > * - use_precomputed_table: are x_R|x_C tables precomputed?< / span > < / div >
< div class = "line" > < a name = "l00489" > < / a > < span class = "lineno" > 489< / span >   < span class = "comment" > * - polysemous_ht: are we filtering with polysemous codes?< / span > < / div >
< div class = "line" > < a name = "l00490" > < / a > < span class = "lineno" > 490< / span >   < span class = "comment" > */< / span > < / div >
< div class = "line" > < a name = "l00491" > < / a > < span class = "lineno" > 491< / span >   < span class = "keyword" > struct < / span > QueryTables {< / div >
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< div class = "line" > < a name = "l00492" > < / a > < span class = "lineno" > 492< / span >   < / div >
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< div class = "line" > < a name = "l00493" > < / a > < span class = "lineno" > 493< / span >   < span class = "comment" > /*****************************************************< / span > < / div >
< div class = "line" > < a name = "l00494" > < / a > < span class = "lineno" > 494< / span >   < span class = "comment" > * General data from the IVFPQ< / span > < / div >
< div class = "line" > < a name = "l00495" > < / a > < span class = "lineno" > 495< / span >   < span class = "comment" > *****************************************************/< / span > < / div >
< div class = "line" > < a name = "l00496" > < / a > < span class = "lineno" > 496< / span >   < / div >
< div class = "line" > < a name = "l00497" > < / a > < span class = "lineno" > 497< / span >   < span class = "keyword" > const< / span > IndexIVFPQ & ivfpq;< / div >
< div class = "line" > < a name = "l00498" > < / a > < span class = "lineno" > 498< / span >   < / div >
< div class = "line" > < a name = "l00499" > < / a > < span class = "lineno" > 499< / span >   < span class = "comment" > // copied from IndexIVFPQ for easier access< / span > < / div >
< div class = "line" > < a name = "l00500" > < / a > < span class = "lineno" > 500< / span >   < span class = "keywordtype" > int< / span > d;< / div >
< div class = "line" > < a name = "l00501" > < / a > < span class = "lineno" > 501< / span >   < span class = "keyword" > const< / span > ProductQuantizer & pq;< / div >
< div class = "line" > < a name = "l00502" > < / a > < span class = "lineno" > 502< / span >   < a class = "code" href = "namespacefaiss.html#afd12191c638da74760ff397cf319752c" > MetricType< / a > metric_type;< / div >
< div class = "line" > < a name = "l00503" > < / a > < span class = "lineno" > 503< / span >   < span class = "keywordtype" > bool< / span > by_residual;< / div >
< div class = "line" > < a name = "l00504" > < / a > < span class = "lineno" > 504< / span >   < span class = "keywordtype" > int< / span > use_precomputed_table;< / div >
< div class = "line" > < a name = "l00505" > < / a > < span class = "lineno" > 505< / span >   < / div >
< div class = "line" > < a name = "l00506" > < / a > < span class = "lineno" > 506< / span >   < span class = "comment" > // pre-allocated data buffers< / span > < / div >
< div class = "line" > < a name = "l00507" > < / a > < span class = "lineno" > 507< / span >   < span class = "keywordtype" > float< / span > * sim_table, * sim_table_2;< / div >
< div class = "line" > < a name = "l00508" > < / a > < span class = "lineno" > 508< / span >   < span class = "keywordtype" > float< / span > * residual_vec, *decoded_vec;< / div >
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< div class = "line" > < a name = "l00509" > < / a > < span class = "lineno" > 509< / span >   < / div >
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< div class = "line" > < a name = "l00510" > < / a > < span class = "lineno" > 510< / span >   < span class = "comment" > // single data buffer< / span > < / div >
< div class = "line" > < a name = "l00511" > < / a > < span class = "lineno" > 511< / span >   std::vector< float> mem;< / div >
< div class = "line" > < a name = "l00512" > < / a > < span class = "lineno" > 512< / span >   < / div >
< div class = "line" > < a name = "l00513" > < / a > < span class = "lineno" > 513< / span >   < span class = "comment" > // for table pointers< / span > < / div >
< div class = "line" > < a name = "l00514" > < / a > < span class = "lineno" > 514< / span >   std::vector< const float *> sim_table_ptrs;< / div >
< div class = "line" > < a name = "l00515" > < / a > < span class = "lineno" > 515< / span >   < / div >
< div class = "line" > < a name = "l00516" > < / a > < span class = "lineno" > 516< / span >   < span class = "keyword" > explicit< / span > QueryTables (< span class = "keyword" > const< / span > IndexIVFPQ & ivfpq):< / div >
< div class = "line" > < a name = "l00517" > < / a > < span class = "lineno" > 517< / span >   ivfpq(ivfpq),< / div >
< div class = "line" > < a name = "l00518" > < / a > < span class = "lineno" > 518< / span >   d(ivfpq.d),< / div >
< div class = "line" > < a name = "l00519" > < / a > < span class = "lineno" > 519< / span >   pq (ivfpq.pq),< / div >
< div class = "line" > < a name = "l00520" > < / a > < span class = "lineno" > 520< / span >   metric_type (ivfpq.metric_type),< / div >
< div class = "line" > < a name = "l00521" > < / a > < span class = "lineno" > 521< / span >   by_residual (ivfpq.by_residual),< / div >
< div class = "line" > < a name = "l00522" > < / a > < span class = "lineno" > 522< / span >   use_precomputed_table (ivfpq.use_precomputed_table)< / div >
< div class = "line" > < a name = "l00523" > < / a > < span class = "lineno" > 523< / span >   {< / div >
< div class = "line" > < a name = "l00524" > < / a > < span class = "lineno" > 524< / span >   mem.resize (pq.ksub * pq.M * 2 + d *2);< / div >
< div class = "line" > < a name = "l00525" > < / a > < span class = "lineno" > 525< / span >   sim_table = mem.data();< / div >
< div class = "line" > < a name = "l00526" > < / a > < span class = "lineno" > 526< / span >   sim_table_2 = sim_table + pq.ksub * pq.M;< / div >
< div class = "line" > < a name = "l00527" > < / a > < span class = "lineno" > 527< / span >   residual_vec = sim_table_2 + pq.ksub * pq.M;< / div >
< div class = "line" > < a name = "l00528" > < / a > < span class = "lineno" > 528< / span >   decoded_vec = residual_vec + d;< / div >
< div class = "line" > < a name = "l00529" > < / a > < span class = "lineno" > 529< / span >   < / div >
< div class = "line" > < a name = "l00530" > < / a > < span class = "lineno" > 530< / span >   < span class = "comment" > // for polysemous< / span > < / div >
< div class = "line" > < a name = "l00531" > < / a > < span class = "lineno" > 531< / span >   < span class = "keywordflow" > if< / span > (ivfpq.polysemous_ht != 0) {< / div >
< div class = "line" > < a name = "l00532" > < / a > < span class = "lineno" > 532< / span >   q_code.resize (pq.code_size);< / div >
< div class = "line" > < a name = "l00533" > < / a > < span class = "lineno" > 533< / span >   }< / div >
< div class = "line" > < a name = "l00534" > < / a > < span class = "lineno" > 534< / span >   init_list_cycles = 0;< / div >
< div class = "line" > < a name = "l00535" > < / a > < span class = "lineno" > 535< / span >   sim_table_ptrs.resize (pq.M);< / div >
< div class = "line" > < a name = "l00536" > < / a > < span class = "lineno" > 536< / span >   }< / div >
< div class = "line" > < a name = "l00537" > < / a > < span class = "lineno" > 537< / span >   < / div >
< div class = "line" > < a name = "l00538" > < / a > < span class = "lineno" > 538< / span >   < span class = "comment" > /*****************************************************< / span > < / div >
< div class = "line" > < a name = "l00539" > < / a > < span class = "lineno" > 539< / span >   < span class = "comment" > * What we do when query is known< / span > < / div >
< div class = "line" > < a name = "l00540" > < / a > < span class = "lineno" > 540< / span >   < span class = "comment" > *****************************************************/< / span > < / div >
< div class = "line" > < a name = "l00541" > < / a > < span class = "lineno" > 541< / span >   < / div >
< div class = "line" > < a name = "l00542" > < / a > < span class = "lineno" > 542< / span >   < span class = "comment" > // field specific to query< / span > < / div >
< div class = "line" > < a name = "l00543" > < / a > < span class = "lineno" > 543< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > * qi;< / div >
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< div class = "line" > < a name = "l00544" > < / a > < span class = "lineno" > 544< / span >   < / div >
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< div class = "line" > < a name = "l00545" > < / a > < span class = "lineno" > 545< / span >   < span class = "comment" > // query-specific intialization< / span > < / div >
< div class = "line" > < a name = "l00546" > < / a > < span class = "lineno" > 546< / span >   < span class = "keywordtype" > void< / span > init_query (< span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > * qi) {< / div >
< div class = "line" > < a name = "l00547" > < / a > < span class = "lineno" > 547< / span >   this-> qi = qi;< / div >
< div class = "line" > < a name = "l00548" > < / a > < span class = "lineno" > 548< / span >   < span class = "keywordflow" > if< / span > (metric_type == METRIC_INNER_PRODUCT)< / div >
< div class = "line" > < a name = "l00549" > < / a > < span class = "lineno" > 549< / span >   init_query_IP ();< / div >
< div class = "line" > < a name = "l00550" > < / a > < span class = "lineno" > 550< / span >   < span class = "keywordflow" > else< / span > < / div >
< div class = "line" > < a name = "l00551" > < / a > < span class = "lineno" > 551< / span >   init_query_L2 ();< / div >
< div class = "line" > < a name = "l00552" > < / a > < span class = "lineno" > 552< / span >   < span class = "keywordflow" > if< / span > (!by_residual & & ivfpq.polysemous_ht != 0)< / div >
< div class = "line" > < a name = "l00553" > < / a > < span class = "lineno" > 553< / span >   pq.compute_code (qi, q_code.data());< / div >
< div class = "line" > < a name = "l00554" > < / a > < span class = "lineno" > 554< / span >   }< / div >
< div class = "line" > < a name = "l00555" > < / a > < span class = "lineno" > 555< / span >   < / div >
< div class = "line" > < a name = "l00556" > < / a > < span class = "lineno" > 556< / span >   < span class = "keywordtype" > void< / span > init_query_IP () {< / div >
< div class = "line" > < a name = "l00557" > < / a > < span class = "lineno" > 557< / span >   < span class = "comment" > // precompute some tables specific to the query qi< / span > < / div >
< div class = "line" > < a name = "l00558" > < / a > < span class = "lineno" > 558< / span >   pq.compute_inner_prod_table (qi, sim_table);< / div >
< div class = "line" > < a name = "l00559" > < / a > < span class = "lineno" > 559< / span >   < span class = "comment" > // we compute negated inner products for use with the maxheap< / span > < / div >
< div class = "line" > < a name = "l00560" > < / a > < span class = "lineno" > 560< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > i = 0; i < pq.ksub * pq.M; i++) {< / div >
< div class = "line" > < a name = "l00561" > < / a > < span class = "lineno" > 561< / span >   sim_table[i] = - sim_table[i];< / div >
< div class = "line" > < a name = "l00562" > < / a > < span class = "lineno" > 562< / span >   }< / div >
< div class = "line" > < a name = "l00563" > < / a > < span class = "lineno" > 563< / span >   }< / div >
< div class = "line" > < a name = "l00564" > < / a > < span class = "lineno" > 564< / span >   < / div >
< div class = "line" > < a name = "l00565" > < / a > < span class = "lineno" > 565< / span >   < span class = "keywordtype" > void< / span > init_query_L2 () {< / div >
< div class = "line" > < a name = "l00566" > < / a > < span class = "lineno" > 566< / span >   < span class = "keywordflow" > if< / span > (!by_residual) {< / div >
< div class = "line" > < a name = "l00567" > < / a > < span class = "lineno" > 567< / span >   pq.compute_distance_table (qi, sim_table);< / div >
< div class = "line" > < a name = "l00568" > < / a > < span class = "lineno" > 568< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (use_precomputed_table) {< / div >
< div class = "line" > < a name = "l00569" > < / a > < span class = "lineno" > 569< / span >   pq.compute_inner_prod_table (qi, sim_table_2);< / div >
< div class = "line" > < a name = "l00570" > < / a > < span class = "lineno" > 570< / span >   }< / div >
< div class = "line" > < a name = "l00571" > < / a > < span class = "lineno" > 571< / span >   }< / div >
< div class = "line" > < a name = "l00572" > < / a > < span class = "lineno" > 572< / span >   < / div >
< div class = "line" > < a name = "l00573" > < / a > < span class = "lineno" > 573< / span >   < span class = "comment" > /*****************************************************< / span > < / div >
< div class = "line" > < a name = "l00574" > < / a > < span class = "lineno" > 574< / span >   < span class = "comment" > * When inverted list is known: prepare computations< / span > < / div >
< div class = "line" > < a name = "l00575" > < / a > < span class = "lineno" > 575< / span >   < span class = "comment" > *****************************************************/< / span > < / div >
< div class = "line" > < a name = "l00576" > < / a > < span class = "lineno" > 576< / span >   < / div >
< div class = "line" > < a name = "l00577" > < / a > < span class = "lineno" > 577< / span >   < span class = "comment" > // fields specific to list< / span > < / div >
< div class = "line" > < a name = "l00578" > < / a > < span class = "lineno" > 578< / span >   < a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > Index::idx_t< / a > key;< / div >
< div class = "line" > < a name = "l00579" > < / a > < span class = "lineno" > 579< / span >   < span class = "keywordtype" > float< / span > coarse_dis;< / div >
< div class = "line" > < a name = "l00580" > < / a > < span class = "lineno" > 580< / span >   std::vector< uint8_t> q_code;< / div >
< div class = "line" > < a name = "l00581" > < / a > < span class = "lineno" > 581< / span >   < / div >
< div class = "line" > < a name = "l00582" > < / a > < span class = "lineno" > 582< / span >   uint64_t init_list_cycles;< / div >
< div class = "line" > < a name = "l00583" > < / a > < span class = "lineno" > 583< / span >   < span class = "comment" > < / span > < / div >
< div class = "line" > < a name = "l00584" > < / a > < span class = "lineno" > 584< / span >   < span class = "comment" > /// once we know the query and the centroid, we can prepare the< / span > < / div >
< div class = "line" > < a name = "l00585" > < / a > < span class = "lineno" > 585< / span >   < span class = "comment" > /// sim_table that will be used for accumulation< / span > < / div >
< div class = "line" > < a name = "l00586" > < / a > < span class = "lineno" > 586< / span >   < span class = "comment" > /// and dis0, the initial value< / span > < / div >
< div class = "line" > < a name = "l00587" > < / a > < span class = "lineno" > 587< / span >   < span class = "comment" > < / span > < span class = "keywordtype" > float< / span > precompute_list_tables () {< / div >
< div class = "line" > < a name = "l00588" > < / a > < span class = "lineno" > 588< / span >   < span class = "keywordtype" > float< / span > dis0 = 0;< / div >
< div class = "line" > < a name = "l00589" > < / a > < span class = "lineno" > 589< / span >   uint64_t t0; TIC;< / div >
< div class = "line" > < a name = "l00590" > < / a > < span class = "lineno" > 590< / span >   < span class = "keywordflow" > if< / span > (by_residual) {< / div >
< div class = "line" > < a name = "l00591" > < / a > < span class = "lineno" > 591< / span >   < span class = "keywordflow" > if< / span > (metric_type == METRIC_INNER_PRODUCT)< / div >
< div class = "line" > < a name = "l00592" > < / a > < span class = "lineno" > 592< / span >   dis0 = precompute_list_tables_IP ();< / div >
< div class = "line" > < a name = "l00593" > < / a > < span class = "lineno" > 593< / span >   < span class = "keywordflow" > else< / span > < / div >
< div class = "line" > < a name = "l00594" > < / a > < span class = "lineno" > 594< / span >   dis0 = precompute_list_tables_L2 ();< / div >
< div class = "line" > < a name = "l00595" > < / a > < span class = "lineno" > 595< / span >   }< / div >
< div class = "line" > < a name = "l00596" > < / a > < span class = "lineno" > 596< / span >   init_list_cycles += TOC;< / div >
< div class = "line" > < a name = "l00597" > < / a > < span class = "lineno" > 597< / span >   < span class = "keywordflow" > return< / span > dis0;< / div >
< div class = "line" > < a name = "l00598" > < / a > < span class = "lineno" > 598< / span >   }< / div >
< div class = "line" > < a name = "l00599" > < / a > < span class = "lineno" > 599< / span >   < / div >
< div class = "line" > < a name = "l00600" > < / a > < span class = "lineno" > 600< / span >   < span class = "keywordtype" > float< / span > precompute_list_table_pointers () {< / div >
< div class = "line" > < a name = "l00601" > < / a > < span class = "lineno" > 601< / span >   < span class = "keywordtype" > float< / span > dis0 = 0;< / div >
< div class = "line" > < a name = "l00602" > < / a > < span class = "lineno" > 602< / span >   uint64_t t0; TIC;< / div >
< div class = "line" > < a name = "l00603" > < / a > < span class = "lineno" > 603< / span >   < span class = "keywordflow" > if< / span > (by_residual) {< / div >
< div class = "line" > < a name = "l00604" > < / a > < span class = "lineno" > 604< / span >   < span class = "keywordflow" > if< / span > (metric_type == METRIC_INNER_PRODUCT)< / div >
< div class = "line" > < a name = "l00605" > < / a > < span class = "lineno" > 605< / span >   FAISS_ASSERT (!< span class = "stringliteral" > " not implemented" < / span > );< / div >
< div class = "line" > < a name = "l00606" > < / a > < span class = "lineno" > 606< / span >   < span class = "keywordflow" > else< / span > < / div >
< div class = "line" > < a name = "l00607" > < / a > < span class = "lineno" > 607< / span >   dis0 = precompute_list_table_pointers_L2 ();< / div >
< div class = "line" > < a name = "l00608" > < / a > < span class = "lineno" > 608< / span >   }< / div >
< div class = "line" > < a name = "l00609" > < / a > < span class = "lineno" > 609< / span >   init_list_cycles += TOC;< / div >
< div class = "line" > < a name = "l00610" > < / a > < span class = "lineno" > 610< / span >   < span class = "keywordflow" > return< / span > dis0;< / div >
< div class = "line" > < a name = "l00611" > < / a > < span class = "lineno" > 611< / span >   }< / div >
< div class = "line" > < a name = "l00612" > < / a > < span class = "lineno" > 612< / span >   < / div >
< div class = "line" > < a name = "l00613" > < / a > < span class = "lineno" > 613< / span >   < span class = "comment" > /*****************************************************< / span > < / div >
< div class = "line" > < a name = "l00614" > < / a > < span class = "lineno" > 614< / span >   < span class = "comment" > * compute tables for inner prod< / span > < / div >
< div class = "line" > < a name = "l00615" > < / a > < span class = "lineno" > 615< / span >   < span class = "comment" > *****************************************************/< / span > < / div >
< div class = "line" > < a name = "l00616" > < / a > < span class = "lineno" > 616< / span >   < / div >
< div class = "line" > < a name = "l00617" > < / a > < span class = "lineno" > 617< / span >   < span class = "keywordtype" > float< / span > precompute_list_tables_IP ()< / div >
< div class = "line" > < a name = "l00618" > < / a > < span class = "lineno" > 618< / span >   {< / div >
< div class = "line" > < a name = "l00619" > < / a > < span class = "lineno" > 619< / span >   < span class = "comment" > // prepare the sim_table that will be used for accumulation< / span > < / div >
< div class = "line" > < a name = "l00620" > < / a > < span class = "lineno" > 620< / span >   < span class = "comment" > // and dis0, the initial value< / span > < / div >
< div class = "line" > < a name = "l00621" > < / a > < span class = "lineno" > 621< / span >   ivfpq.quantizer-> reconstruct (key, decoded_vec);< / div >
< div class = "line" > < a name = "l00622" > < / a > < span class = "lineno" > 622< / span >   < span class = "comment" > // decoded_vec = centroid< / span > < / div >
< div class = "line" > < a name = "l00623" > < / a > < span class = "lineno" > 623< / span >   < span class = "keywordtype" > float< / span > dis0 = -fvec_inner_product (qi, decoded_vec, d);< / div >
< div class = "line" > < a name = "l00624" > < / a > < span class = "lineno" > 624< / span >   < / div >
< div class = "line" > < a name = "l00625" > < / a > < span class = "lineno" > 625< / span >   < span class = "keywordflow" > if< / span > (ivfpq.polysemous_ht) {< / div >
< div class = "line" > < a name = "l00626" > < / a > < span class = "lineno" > 626< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > i = 0; i < d; i++) {< / div >
< div class = "line" > < a name = "l00627" > < / a > < span class = "lineno" > 627< / span >   residual_vec [i] = qi[i] - decoded_vec[i];< / div >
< div class = "line" > < a name = "l00628" > < / a > < span class = "lineno" > 628< / span >   }< / div >
< div class = "line" > < a name = "l00629" > < / a > < span class = "lineno" > 629< / span >   pq.compute_code (residual_vec, q_code.data());< / div >
< div class = "line" > < a name = "l00630" > < / a > < span class = "lineno" > 630< / span >   }< / div >
< div class = "line" > < a name = "l00631" > < / a > < span class = "lineno" > 631< / span >   < span class = "keywordflow" > return< / span > dis0;< / div >
< div class = "line" > < a name = "l00632" > < / a > < span class = "lineno" > 632< / span >   }< / div >
< div class = "line" > < a name = "l00633" > < / a > < span class = "lineno" > 633< / span >   < / div >
< div class = "line" > < a name = "l00634" > < / a > < span class = "lineno" > 634< / span >   < / div >
< div class = "line" > < a name = "l00635" > < / a > < span class = "lineno" > 635< / span >   < span class = "comment" > /*****************************************************< / span > < / div >
< div class = "line" > < a name = "l00636" > < / a > < span class = "lineno" > 636< / span >   < span class = "comment" > * compute tables for L2 distance< / span > < / div >
< div class = "line" > < a name = "l00637" > < / a > < span class = "lineno" > 637< / span >   < span class = "comment" > *****************************************************/< / span > < / div >
< div class = "line" > < a name = "l00638" > < / a > < span class = "lineno" > 638< / span >   < / div >
< div class = "line" > < a name = "l00639" > < / a > < span class = "lineno" > 639< / span >   < span class = "keywordtype" > float< / span > precompute_list_tables_L2 ()< / div >
< div class = "line" > < a name = "l00640" > < / a > < span class = "lineno" > 640< / span >   {< / div >
< div class = "line" > < a name = "l00641" > < / a > < span class = "lineno" > 641< / span >   < span class = "keywordtype" > float< / span > dis0 = 0;< / div >
< div class = "line" > < a name = "l00642" > < / a > < span class = "lineno" > 642< / span >   < / div >
< div class = "line" > < a name = "l00643" > < / a > < span class = "lineno" > 643< / span >   < span class = "keywordflow" > if< / span > (use_precomputed_table == 0) {< / div >
< div class = "line" > < a name = "l00644" > < / a > < span class = "lineno" > 644< / span >   ivfpq.quantizer-> compute_residual (qi, residual_vec, key);< / div >
< div class = "line" > < a name = "l00645" > < / a > < span class = "lineno" > 645< / span >   pq.compute_distance_table (residual_vec, sim_table);< / div >
< div class = "line" > < a name = "l00646" > < / a > < span class = "lineno" > 646< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (use_precomputed_table == 1) {< / div >
< div class = "line" > < a name = "l00647" > < / a > < span class = "lineno" > 647< / span >   dis0 = coarse_dis;< / div >
< div class = "line" > < a name = "l00648" > < / a > < span class = "lineno" > 648< / span >   < / div >
< div class = "line" > < a name = "l00649" > < / a > < span class = "lineno" > 649< / span >   < a class = "code" href = "namespacefaiss.html#a40328c31abd0bbba5bd95d7de951e847" > fvec_madd< / a > (pq.M * pq.ksub,< / div >
< div class = "line" > < a name = "l00650" > < / a > < span class = "lineno" > 650< / span >   & ivfpq.precomputed_table [key * pq.ksub * pq.M],< / div >
< div class = "line" > < a name = "l00651" > < / a > < span class = "lineno" > 651< / span >   -2.0, sim_table_2,< / div >
< div class = "line" > < a name = "l00652" > < / a > < span class = "lineno" > 652< / span >   sim_table);< / div >
< div class = "line" > < a name = "l00653" > < / a > < span class = "lineno" > 653< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (use_precomputed_table == 2) {< / div >
< div class = "line" > < a name = "l00654" > < / a > < span class = "lineno" > 654< / span >   dis0 = coarse_dis;< / div >
< div class = "line" > < a name = "l00655" > < / a > < span class = "lineno" > 655< / span >   < / div >
< div class = "line" > < a name = "l00656" > < / a > < span class = "lineno" > 656< / span >   < span class = "keyword" > const< / span > MultiIndexQuantizer *miq =< / div >
< div class = "line" > < a name = "l00657" > < / a > < span class = "lineno" > 657< / span >   < span class = "keyword" > dynamic_cast< < / span > < span class = "keyword" > const < / span > MultiIndexQuantizer *< span class = "keyword" > > < / span > (ivfpq.quantizer);< / div >
< div class = "line" > < a name = "l00658" > < / a > < span class = "lineno" > 658< / span >   FAISS_ASSERT (miq);< / div >
< div class = "line" > < a name = "l00659" > < / a > < span class = "lineno" > 659< / span >   < span class = "keyword" > const< / span > ProductQuantizer & cpq = miq-> pq;< / div >
< div class = "line" > < a name = "l00660" > < / a > < span class = "lineno" > 660< / span >   < span class = "keywordtype" > int< / span > Mf = pq.M / cpq.M;< / div >
< div class = "line" > < a name = "l00661" > < / a > < span class = "lineno" > 661< / span >   < / div >
< div class = "line" > < a name = "l00662" > < / a > < span class = "lineno" > 662< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > *qtab = sim_table_2; < span class = "comment" > // query-specific table< / span > < / div >
< div class = "line" > < a name = "l00663" > < / a > < span class = "lineno" > 663< / span >   < span class = "keywordtype" > float< / span > *ltab = sim_table; < span class = "comment" > // (output) list-specific table< / span > < / div >
< div class = "line" > < a name = "l00664" > < / a > < span class = "lineno" > 664< / span >   < / div >
< div class = "line" > < a name = "l00665" > < / a > < span class = "lineno" > 665< / span >   < span class = "keywordtype" > long< / span > k = key;< / div >
< div class = "line" > < a name = "l00666" > < / a > < span class = "lineno" > 666< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > cm = 0; cm < cpq.M; cm++) {< / div >
< div class = "line" > < a name = "l00667" > < / a > < span class = "lineno" > 667< / span >   < span class = "comment" > // compute PQ index< / span > < / div >
< div class = "line" > < a name = "l00668" > < / a > < span class = "lineno" > 668< / span >   < span class = "keywordtype" > int< / span > ki = k & ((uint64_t(1) < < cpq.nbits) - 1);< / div >
< div class = "line" > < a name = "l00669" > < / a > < span class = "lineno" > 669< / span >   k > > = cpq.nbits;< / div >
< div class = "line" > < a name = "l00670" > < / a > < span class = "lineno" > 670< / span >   < / div >
< div class = "line" > < a name = "l00671" > < / a > < span class = "lineno" > 671< / span >   < span class = "comment" > // get corresponding table< / span > < / div >
< div class = "line" > < a name = "l00672" > < / a > < span class = "lineno" > 672< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > *pc = & ivfpq.precomputed_table< / div >
< div class = "line" > < a name = "l00673" > < / a > < span class = "lineno" > 673< / span >   [(ki * pq.M + cm * Mf) * pq.ksub];< / div >
< div class = "line" > < a name = "l00674" > < / a > < span class = "lineno" > 674< / span >   < / div >
< div class = "line" > < a name = "l00675" > < / a > < span class = "lineno" > 675< / span >   if (ivfpq.polysemous_ht == 0) {< / div >
2017-03-21 01:33:21 +08:00
< div class = "line" > < a name = "l00676" > < / a > < span class = "lineno" > 676< / span >   < / div >
2017-04-06 19:33:41 +08:00
< div class = "line" > < a name = "l00677" > < / a > < span class = "lineno" > 677< / span >   < span class = "comment" > // sum up with query-specific table< / span > < / div >
< div class = "line" > < a name = "l00678" > < / a > < span class = "lineno" > 678< / span >   < a class = "code" href = "namespacefaiss.html#a40328c31abd0bbba5bd95d7de951e847" > fvec_madd< / a > (Mf * pq.ksub,< / div >
< div class = "line" > < a name = "l00679" > < / a > < span class = "lineno" > 679< / span >   pc,< / div >
< div class = "line" > < a name = "l00680" > < / a > < span class = "lineno" > 680< / span >   -2.0, qtab,< / div >
< div class = "line" > < a name = "l00681" > < / a > < span class = "lineno" > 681< / span >   ltab);< / div >
< div class = "line" > < a name = "l00682" > < / a > < span class = "lineno" > 682< / span >   ltab += Mf * pq.ksub;< / div >
< div class = "line" > < a name = "l00683" > < / a > < span class = "lineno" > 683< / span >   qtab += Mf * pq.ksub;< / div >
< div class = "line" > < a name = "l00684" > < / a > < span class = "lineno" > 684< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00685" > < / a > < span class = "lineno" > 685< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > m = cm * Mf; m < (cm + 1) * Mf; m++) {< / div >
< div class = "line" > < a name = "l00686" > < / a > < span class = "lineno" > 686< / span >   q_code[m] = < a class = "code" href = "namespacefaiss.html#a9da63b8bb84460f5e8ccf8e17622cc7a" > fvec_madd_and_argmin< / a > < / div >
< div class = "line" > < a name = "l00687" > < / a > < span class = "lineno" > 687< / span >   (pq.ksub, pc, -2, qtab, ltab);< / div >
< div class = "line" > < a name = "l00688" > < / a > < span class = "lineno" > 688< / span >   pc += pq.ksub;< / div >
< div class = "line" > < a name = "l00689" > < / a > < span class = "lineno" > 689< / span >   ltab += pq.ksub;< / div >
< div class = "line" > < a name = "l00690" > < / a > < span class = "lineno" > 690< / span >   qtab += pq.ksub;< / div >
< div class = "line" > < a name = "l00691" > < / a > < span class = "lineno" > 691< / span >   }< / div >
< div class = "line" > < a name = "l00692" > < / a > < span class = "lineno" > 692< / span >   }< / div >
< div class = "line" > < a name = "l00693" > < / a > < span class = "lineno" > 693< / span >   < / div >
< div class = "line" > < a name = "l00694" > < / a > < span class = "lineno" > 694< / span >   }< / div >
< div class = "line" > < a name = "l00695" > < / a > < span class = "lineno" > 695< / span >   }< / div >
< div class = "line" > < a name = "l00696" > < / a > < span class = "lineno" > 696< / span >   < / div >
< div class = "line" > < a name = "l00697" > < / a > < span class = "lineno" > 697< / span >   < span class = "keywordflow" > return< / span > dis0;< / div >
< div class = "line" > < a name = "l00698" > < / a > < span class = "lineno" > 698< / span >   }< / div >
< div class = "line" > < a name = "l00699" > < / a > < span class = "lineno" > 699< / span >   < / div >
< div class = "line" > < a name = "l00700" > < / a > < span class = "lineno" > 700< / span >   < span class = "keywordtype" > float< / span > precompute_list_table_pointers_L2 ()< / div >
< div class = "line" > < a name = "l00701" > < / a > < span class = "lineno" > 701< / span >   {< / div >
< div class = "line" > < a name = "l00702" > < / a > < span class = "lineno" > 702< / span >   < span class = "keywordtype" > float< / span > dis0 = 0;< / div >
< div class = "line" > < a name = "l00703" > < / a > < span class = "lineno" > 703< / span >   < / div >
< div class = "line" > < a name = "l00704" > < / a > < span class = "lineno" > 704< / span >   < span class = "keywordflow" > if< / span > (use_precomputed_table == 1) {< / div >
< div class = "line" > < a name = "l00705" > < / a > < span class = "lineno" > 705< / span >   dis0 = coarse_dis;< / div >
2017-03-21 01:33:21 +08:00
< div class = "line" > < a name = "l00706" > < / a > < span class = "lineno" > 706< / span >   < / div >
2017-04-06 19:33:41 +08:00
< div class = "line" > < a name = "l00707" > < / a > < span class = "lineno" > 707< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > * s = & ivfpq.precomputed_table [key * pq.ksub * pq.M];< / div >
< div class = "line" > < a name = "l00708" > < / a > < span class = "lineno" > 708< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > m = 0; m < pq.M; m++) {< / div >
< div class = "line" > < a name = "l00709" > < / a > < span class = "lineno" > 709< / span >   sim_table_ptrs [m] = s;< / div >
< div class = "line" > < a name = "l00710" > < / a > < span class = "lineno" > 710< / span >   s += pq.ksub;< / div >
< div class = "line" > < a name = "l00711" > < / a > < span class = "lineno" > 711< / span >   }< / div >
< div class = "line" > < a name = "l00712" > < / a > < span class = "lineno" > 712< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (use_precomputed_table == 2) {< / div >
< div class = "line" > < a name = "l00713" > < / a > < span class = "lineno" > 713< / span >   dis0 = coarse_dis;< / div >
< div class = "line" > < a name = "l00714" > < / a > < span class = "lineno" > 714< / span >   < / div >
< div class = "line" > < a name = "l00715" > < / a > < span class = "lineno" > 715< / span >   < span class = "keyword" > const< / span > MultiIndexQuantizer *miq =< / div >
< div class = "line" > < a name = "l00716" > < / a > < span class = "lineno" > 716< / span >   < span class = "keyword" > dynamic_cast< < / span > < span class = "keyword" > const < / span > MultiIndexQuantizer *< span class = "keyword" > > < / span > (ivfpq.quantizer);< / div >
< div class = "line" > < a name = "l00717" > < / a > < span class = "lineno" > 717< / span >   FAISS_ASSERT (miq);< / div >
< div class = "line" > < a name = "l00718" > < / a > < span class = "lineno" > 718< / span >   < span class = "keyword" > const< / span > ProductQuantizer & cpq = miq-> pq;< / div >
< div class = "line" > < a name = "l00719" > < / a > < span class = "lineno" > 719< / span >   < span class = "keywordtype" > int< / span > Mf = pq.M / cpq.M;< / div >
< div class = "line" > < a name = "l00720" > < / a > < span class = "lineno" > 720< / span >   < / div >
< div class = "line" > < a name = "l00721" > < / a > < span class = "lineno" > 721< / span >   < span class = "keywordtype" > long< / span > k = key;< / div >
< div class = "line" > < a name = "l00722" > < / a > < span class = "lineno" > 722< / span >   < span class = "keywordtype" > int< / span > m0 = 0;< / div >
< div class = "line" > < a name = "l00723" > < / a > < span class = "lineno" > 723< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > cm = 0; cm < cpq.M; cm++) {< / div >
< div class = "line" > < a name = "l00724" > < / a > < span class = "lineno" > 724< / span >   < span class = "keywordtype" > int< / span > ki = k & ((uint64_t(1) < < cpq.nbits) - 1);< / div >
< div class = "line" > < a name = "l00725" > < / a > < span class = "lineno" > 725< / span >   k > > = cpq.nbits;< / div >
< div class = "line" > < a name = "l00726" > < / a > < span class = "lineno" > 726< / span >   < / div >
< div class = "line" > < a name = "l00727" > < / a > < span class = "lineno" > 727< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > *pc = & ivfpq.precomputed_table< / div >
< div class = "line" > < a name = "l00728" > < / a > < span class = "lineno" > 728< / span >   [(ki * pq.M + cm * Mf) * pq.ksub];< / div >
< div class = "line" > < a name = "l00729" > < / a > < span class = "lineno" > 729< / span >   < / div >
< div class = "line" > < a name = "l00730" > < / a > < span class = "lineno" > 730< / span >   for (< span class = "keywordtype" > int< / span > m = m0; m < m0 + Mf; m++) {< / div >
< div class = "line" > < a name = "l00731" > < / a > < span class = "lineno" > 731< / span >   sim_table_ptrs [m] = pc;< / div >
< div class = "line" > < a name = "l00732" > < / a > < span class = "lineno" > 732< / span >   pc += pq.ksub;< / div >
< div class = "line" > < a name = "l00733" > < / a > < span class = "lineno" > 733< / span >   }< / div >
< div class = "line" > < a name = "l00734" > < / a > < span class = "lineno" > 734< / span >   m0 += Mf;< / div >
< div class = "line" > < a name = "l00735" > < / a > < span class = "lineno" > 735< / span >   }< / div >
< div class = "line" > < a name = "l00736" > < / a > < span class = "lineno" > 736< / span >   } < span class = "keywordflow" > else< / span > FAISS_ASSERT (!< span class = "stringliteral" > " need precomputed tables" < / span > );< / div >
< div class = "line" > < a name = "l00737" > < / a > < span class = "lineno" > 737< / span >   < / div >
< div class = "line" > < a name = "l00738" > < / a > < span class = "lineno" > 738< / span >   < span class = "keywordflow" > if< / span > (ivfpq.polysemous_ht) {< / div >
< div class = "line" > < a name = "l00739" > < / a > < span class = "lineno" > 739< / span >   FAISS_ASSERT (!< span class = "stringliteral" > " not implemented" < / span > );< / div >
< div class = "line" > < a name = "l00740" > < / a > < span class = "lineno" > 740< / span >   < span class = "comment" > // Not clear that it makes sense to implemente this,< / span > < / div >
< div class = "line" > < a name = "l00741" > < / a > < span class = "lineno" > 741< / span >   < span class = "comment" > // because it costs M * ksub, which is what we wanted to< / span > < / div >
< div class = "line" > < a name = "l00742" > < / a > < span class = "lineno" > 742< / span >   < span class = "comment" > // avoid with the tables pointers.< / span > < / div >
< div class = "line" > < a name = "l00743" > < / a > < span class = "lineno" > 743< / span >   }< / div >
< div class = "line" > < a name = "l00744" > < / a > < span class = "lineno" > 744< / span >   < / div >
< div class = "line" > < a name = "l00745" > < / a > < span class = "lineno" > 745< / span >   < span class = "keywordflow" > return< / span > dis0;< / div >
< div class = "line" > < a name = "l00746" > < / a > < span class = "lineno" > 746< / span >   }< / div >
< div class = "line" > < a name = "l00747" > < / a > < span class = "lineno" > 747< / span >   < / div >
< div class = "line" > < a name = "l00748" > < / a > < span class = "lineno" > 748< / span >   < / div >
< div class = "line" > < a name = "l00749" > < / a > < span class = "lineno" > 749< / span >   };< / div >
< div class = "line" > < a name = "l00750" > < / a > < span class = "lineno" > 750< / span >   < / div >
< div class = "line" > < a name = "l00751" > < / a > < span class = "lineno" > 751< / span >   < / div >
< div class = "line" > < a name = "l00752" > < / a > < span class = "lineno" > 752< / span >   < span class = "comment" > /*****************************************************< / span > < / div >
< div class = "line" > < a name = "l00753" > < / a > < span class = "lineno" > 753< / span >   < span class = "comment" > * Scaning the codes.< / span > < / div >
< div class = "line" > < a name = "l00754" > < / a > < span class = "lineno" > 754< / span >   < span class = "comment" > * The scanning functions call their favorite precompute_*< / span > < / div >
< div class = "line" > < a name = "l00755" > < / a > < span class = "lineno" > 755< / span >   < span class = "comment" > * function to precompute the tables they need.< / span > < / div >
< div class = "line" > < a name = "l00756" > < / a > < span class = "lineno" > 756< / span >   < span class = "comment" > *****************************************************/< / span > < / div >
< div class = "line" > < a name = "l00757" > < / a > < span class = "lineno" > 757< / span >   < span class = "keyword" > template< / span > < < span class = "keyword" > typename< / span > IDType> < / div >
< div class = "line" > < a name = "l00758" > < / a > < span class = "lineno" > 758< / span >   < span class = "keyword" > struct < / span > InvertedListScanner: QueryTables {< / div >
< div class = "line" > < a name = "l00759" > < / a > < span class = "lineno" > 759< / span >   < / div >
< div class = "line" > < a name = "l00760" > < / a > < span class = "lineno" > 760< / span >   < span class = "keyword" > const< / span > uint8_t * __restrict list_codes;< / div >
< div class = "line" > < a name = "l00761" > < / a > < span class = "lineno" > 761< / span >   < span class = "keyword" > const< / span > IDType * list_ids;< / div >
< div class = "line" > < a name = "l00762" > < / a > < span class = "lineno" > 762< / span >   < span class = "keywordtype" > size_t< / span > list_size;< / div >
< div class = "line" > < a name = "l00763" > < / a > < span class = "lineno" > 763< / span >   < / div >
< div class = "line" > < a name = "l00764" > < / a > < span class = "lineno" > 764< / span >   < span class = "keyword" > explicit< / span > InvertedListScanner (< span class = "keyword" > const< / span > IndexIVFPQ & ivfpq):< / div >
< div class = "line" > < a name = "l00765" > < / a > < span class = "lineno" > 765< / span >   QueryTables (ivfpq)< / div >
< div class = "line" > < a name = "l00766" > < / a > < span class = "lineno" > 766< / span >   {< / div >
< div class = "line" > < a name = "l00767" > < / a > < span class = "lineno" > 767< / span >   FAISS_ASSERT(pq.byte_per_idx == 1);< / div >
< div class = "line" > < a name = "l00768" > < / a > < span class = "lineno" > 768< / span >   n_hamming_pass = 0;< / div >
< div class = "line" > < a name = "l00769" > < / a > < span class = "lineno" > 769< / span >   }< / div >
< div class = "line" > < a name = "l00770" > < / a > < span class = "lineno" > 770< / span >   < span class = "comment" > < / span > < / div >
< div class = "line" > < a name = "l00771" > < / a > < span class = "lineno" > 771< / span >   < span class = "comment" > /// list_specific intialization< / span > < / div >
< div class = "line" > < a name = "l00772" > < / a > < span class = "lineno" > 772< / span >   < span class = "comment" > < / span > < span class = "keywordtype" > void< / span > init_list (< a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > Index::idx_t< / a > key, < span class = "keywordtype" > float< / span > coarse_dis,< / div >
< div class = "line" > < a name = "l00773" > < / a > < span class = "lineno" > 773< / span >   < span class = "keywordtype" > size_t< / span > list_size_in, < span class = "keyword" > const< / span > IDType *list_ids_in,< / div >
< div class = "line" > < a name = "l00774" > < / a > < span class = "lineno" > 774< / span >   < span class = "keyword" > const< / span > uint8_t *list_codes_in) {< / div >
< div class = "line" > < a name = "l00775" > < / a > < span class = "lineno" > 775< / span >   this-> key = key;< / div >
< div class = "line" > < a name = "l00776" > < / a > < span class = "lineno" > 776< / span >   this-> coarse_dis = coarse_dis;< / div >
< div class = "line" > < a name = "l00777" > < / a > < span class = "lineno" > 777< / span >   list_size = list_size_in;< / div >
< div class = "line" > < a name = "l00778" > < / a > < span class = "lineno" > 778< / span >   list_codes = list_codes_in;< / div >
< div class = "line" > < a name = "l00779" > < / a > < span class = "lineno" > 779< / span >   list_ids = list_ids_in;< / div >
< div class = "line" > < a name = "l00780" > < / a > < span class = "lineno" > 780< / span >   }< / div >
2017-03-21 01:33:21 +08:00
< div class = "line" > < a name = "l00781" > < / a > < span class = "lineno" > 781< / span >   < / div >
2017-04-06 19:33:41 +08:00
< div class = "line" > < a name = "l00782" > < / a > < span class = "lineno" > 782< / span >   < span class = "comment" > /*****************************************************< / span > < / div >
< div class = "line" > < a name = "l00783" > < / a > < span class = "lineno" > 783< / span >   < span class = "comment" > * Scaning the codes: simple PQ scan.< / span > < / div >
< div class = "line" > < a name = "l00784" > < / a > < span class = "lineno" > 784< / span >   < span class = "comment" > *****************************************************/< / span > < / div >
< div class = "line" > < a name = "l00785" > < / a > < span class = "lineno" > 785< / span >   < span class = "comment" > < / span > < / div >
< div class = "line" > < a name = "l00786" > < / a > < span class = "lineno" > 786< / span >   < span class = "comment" > /// version of the scan where we use precomputed tables< / span > < / div >
< div class = "line" > < a name = "l00787" > < / a > < span class = "lineno" > 787< / span >   < span class = "comment" > < / span > < span class = "keywordtype" > void< / span > scan_list_with_table (< / div >
< div class = "line" > < a name = "l00788" > < / a > < span class = "lineno" > 788< / span >   < span class = "keywordtype" > size_t< / span > k, < span class = "keywordtype" > float< / span > * heap_sim, < span class = "keywordtype" > long< / span > * heap_ids, < span class = "keywordtype" > bool< / span > store_pairs)< / div >
< div class = "line" > < a name = "l00789" > < / a > < span class = "lineno" > 789< / span >   {< / div >
< div class = "line" > < a name = "l00790" > < / a > < span class = "lineno" > 790< / span >   < span class = "keywordtype" > float< / span > dis0 = precompute_list_tables ();< / div >
< div class = "line" > < a name = "l00791" > < / a > < span class = "lineno" > 791< / span >   < / div >
< div class = "line" > < a name = "l00792" > < / a > < span class = "lineno" > 792< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > size_t< / span > j = 0; j < list_size; j++) {< / div >
< div class = "line" > < a name = "l00793" > < / a > < span class = "lineno" > 793< / span >   < / div >
< div class = "line" > < a name = "l00794" > < / a > < span class = "lineno" > 794< / span >   < span class = "keywordtype" > float< / span > dis = dis0;< / div >
< div class = "line" > < a name = "l00795" > < / a > < span class = "lineno" > 795< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > *tab = sim_table;< / div >
2017-02-23 06:26:44 +08:00
< div class = "line" > < a name = "l00796" > < / a > < span class = "lineno" > 796< / span >   < / div >
2017-04-06 19:33:41 +08:00
< div class = "line" > < a name = "l00797" > < / a > < span class = "lineno" > 797< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > size_t< / span > m = 0; m < pq.M; m++) {< / div >
< div class = "line" > < a name = "l00798" > < / a > < span class = "lineno" > 798< / span >   dis += tab[*list_codes++];< / div >
< div class = "line" > < a name = "l00799" > < / a > < span class = "lineno" > 799< / span >   tab += pq.ksub;< / div >
< div class = "line" > < a name = "l00800" > < / a > < span class = "lineno" > 800< / span >   }< / div >
< div class = "line" > < a name = "l00801" > < / a > < span class = "lineno" > 801< / span >   < / div >
< div class = "line" > < a name = "l00802" > < / a > < span class = "lineno" > 802< / span >   < span class = "keywordflow" > if< / span > (dis < heap_sim[0]) {< / div >
< div class = "line" > < a name = "l00803" > < / a > < span class = "lineno" > 803< / span >   maxheap_pop (k, heap_sim, heap_ids);< / div >
< div class = "line" > < a name = "l00804" > < / a > < span class = "lineno" > 804< / span >   < span class = "keywordtype" > long< / span > < span class = "keywordtype" > id< / span > = store_pairs ? (key < < 32 | j) : list_ids[j];< / div >
< div class = "line" > < a name = "l00805" > < / a > < span class = "lineno" > 805< / span >   maxheap_push (k, heap_sim, heap_ids, dis, < span class = "keywordtype" > id< / span > );< / div >
< div class = "line" > < a name = "l00806" > < / a > < span class = "lineno" > 806< / span >   }< / div >
< div class = "line" > < a name = "l00807" > < / a > < span class = "lineno" > 807< / span >   }< / div >
< div class = "line" > < a name = "l00808" > < / a > < span class = "lineno" > 808< / span >   }< / div >
2017-03-21 01:33:21 +08:00
< div class = "line" > < a name = "l00809" > < / a > < span class = "lineno" > 809< / span >   < / div >
2017-04-06 19:33:41 +08:00
< div class = "line" > < a name = "l00810" > < / a > < span class = "lineno" > 810< / span >   < span class = "comment" > < / span > < / div >
< div class = "line" > < a name = "l00811" > < / a > < span class = "lineno" > 811< / span >   < span class = "comment" > /// tables are not precomputed, but pointers are provided to the< / span > < / div >
< div class = "line" > < a name = "l00812" > < / a > < span class = "lineno" > 812< / span >   < span class = "comment" > /// relevant X_c|x_r tables< / span > < / div >
< div class = "line" > < a name = "l00813" > < / a > < span class = "lineno" > 813< / span >   < span class = "comment" > < / span > < span class = "keywordtype" > void< / span > scan_list_with_pointer (< / div >
< div class = "line" > < a name = "l00814" > < / a > < span class = "lineno" > 814< / span >   < span class = "keywordtype" > size_t< / span > k, < span class = "keywordtype" > float< / span > * heap_sim, < span class = "keywordtype" > long< / span > * heap_ids, < span class = "keywordtype" > bool< / span > store_pairs)< / div >
< div class = "line" > < a name = "l00815" > < / a > < span class = "lineno" > 815< / span >   {< / div >
2017-03-21 01:33:21 +08:00
< div class = "line" > < a name = "l00816" > < / a > < span class = "lineno" > 816< / span >   < / div >
2017-04-06 19:33:41 +08:00
< div class = "line" > < a name = "l00817" > < / a > < span class = "lineno" > 817< / span >   < span class = "keywordtype" > float< / span > dis0 = precompute_list_table_pointers ();< / div >
< div class = "line" > < a name = "l00818" > < / a > < span class = "lineno" > 818< / span >   < / div >
< div class = "line" > < a name = "l00819" > < / a > < span class = "lineno" > 819< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > size_t< / span > j = 0; j < list_size; j++) {< / div >
< div class = "line" > < a name = "l00820" > < / a > < span class = "lineno" > 820< / span >   < / div >
< div class = "line" > < a name = "l00821" > < / a > < span class = "lineno" > 821< / span >   < span class = "keywordtype" > float< / span > dis = dis0;< / div >
< div class = "line" > < a name = "l00822" > < / a > < span class = "lineno" > 822< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > *tab = sim_table_2;< / div >
2017-03-21 01:33:21 +08:00
< div class = "line" > < a name = "l00823" > < / a > < span class = "lineno" > 823< / span >   < / div >
2017-04-06 19:33:41 +08:00
< div class = "line" > < a name = "l00824" > < / a > < span class = "lineno" > 824< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > size_t< / span > m = 0; m < pq.M; m++) {< / div >
< div class = "line" > < a name = "l00825" > < / a > < span class = "lineno" > 825< / span >   < span class = "keywordtype" > int< / span > ci = *list_codes++;< / div >
< div class = "line" > < a name = "l00826" > < / a > < span class = "lineno" > 826< / span >   dis += sim_table_ptrs [m][ci] - 2 * tab [ci];< / div >
< div class = "line" > < a name = "l00827" > < / a > < span class = "lineno" > 827< / span >   tab += pq.ksub;< / div >
< div class = "line" > < a name = "l00828" > < / a > < span class = "lineno" > 828< / span >   }< / div >
< div class = "line" > < a name = "l00829" > < / a > < span class = "lineno" > 829< / span >   < / div >
< div class = "line" > < a name = "l00830" > < / a > < span class = "lineno" > 830< / span >   < span class = "keywordflow" > if< / span > (dis < heap_sim[0]) {< / div >
< div class = "line" > < a name = "l00831" > < / a > < span class = "lineno" > 831< / span >   maxheap_pop (k, heap_sim, heap_ids);< / div >
< div class = "line" > < a name = "l00832" > < / a > < span class = "lineno" > 832< / span >   < span class = "keywordtype" > long< / span > < span class = "keywordtype" > id< / span > = store_pairs ? (key < < 32 | j) : list_ids[j];< / div >
< div class = "line" > < a name = "l00833" > < / a > < span class = "lineno" > 833< / span >   maxheap_push (k, heap_sim, heap_ids, dis, < span class = "keywordtype" > id< / span > );< / div >
< div class = "line" > < a name = "l00834" > < / a > < span class = "lineno" > 834< / span >   }< / div >
< div class = "line" > < a name = "l00835" > < / a > < span class = "lineno" > 835< / span >   }< / div >
< div class = "line" > < a name = "l00836" > < / a > < span class = "lineno" > 836< / span >   < / div >
< div class = "line" > < a name = "l00837" > < / a > < span class = "lineno" > 837< / span >   }< / div >
< div class = "line" > < a name = "l00838" > < / a > < span class = "lineno" > 838< / span >   < span class = "comment" > < / span > < / div >
< div class = "line" > < a name = "l00839" > < / a > < span class = "lineno" > 839< / span >   < span class = "comment" > /// nothing is precomputed: access residuals on-the-fly< / span > < / div >
< div class = "line" > < a name = "l00840" > < / a > < span class = "lineno" > 840< / span >   < span class = "comment" > < / span > < span class = "keywordtype" > void< / span > scan_on_the_fly_dist (< / div >
< div class = "line" > < a name = "l00841" > < / a > < span class = "lineno" > 841< / span >   < span class = "keywordtype" > size_t< / span > k, < span class = "keywordtype" > float< / span > * heap_sim, < span class = "keywordtype" > long< / span > * heap_ids, < span class = "keywordtype" > bool< / span > store_pairs)< / div >
< div class = "line" > < a name = "l00842" > < / a > < span class = "lineno" > 842< / span >   {< / div >
< div class = "line" > < a name = "l00843" > < / a > < span class = "lineno" > 843< / span >   < / div >
< div class = "line" > < a name = "l00844" > < / a > < span class = "lineno" > 844< / span >   < span class = "keywordflow" > if< / span > (by_residual & & use_precomputed_table) {< / div >
< div class = "line" > < a name = "l00845" > < / a > < span class = "lineno" > 845< / span >   scan_list_with_pointer (k, heap_sim, heap_ids, store_pairs);< / div >
< div class = "line" > < a name = "l00846" > < / a > < span class = "lineno" > 846< / span >   < span class = "keywordflow" > return< / span > ;< / div >
< div class = "line" > < a name = "l00847" > < / a > < span class = "lineno" > 847< / span >   }< / div >
< div class = "line" > < a name = "l00848" > < / a > < span class = "lineno" > 848< / span >   < / div >
< div class = "line" > < a name = "l00849" > < / a > < span class = "lineno" > 849< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > *dvec;< / div >
< div class = "line" > < a name = "l00850" > < / a > < span class = "lineno" > 850< / span >   < span class = "keywordtype" > float< / span > dis0 = 0;< / div >
< div class = "line" > < a name = "l00851" > < / a > < span class = "lineno" > 851< / span >   < / div >
< div class = "line" > < a name = "l00852" > < / a > < span class = "lineno" > 852< / span >   < span class = "keywordflow" > if< / span > (by_residual) {< / div >
< div class = "line" > < a name = "l00853" > < / a > < span class = "lineno" > 853< / span >   < span class = "keywordflow" > if< / span > (metric_type == METRIC_INNER_PRODUCT) {< / div >
< div class = "line" > < a name = "l00854" > < / a > < span class = "lineno" > 854< / span >   ivfpq.quantizer-> reconstruct (key, residual_vec);< / div >
< div class = "line" > < a name = "l00855" > < / a > < span class = "lineno" > 855< / span >   dis0 = fvec_inner_product (residual_vec, qi, d);< / div >
< div class = "line" > < a name = "l00856" > < / a > < span class = "lineno" > 856< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00857" > < / a > < span class = "lineno" > 857< / span >   ivfpq.quantizer-> compute_residual (qi, residual_vec, key);< / div >
< div class = "line" > < a name = "l00858" > < / a > < span class = "lineno" > 858< / span >   }< / div >
< div class = "line" > < a name = "l00859" > < / a > < span class = "lineno" > 859< / span >   dvec = residual_vec;< / div >
< div class = "line" > < a name = "l00860" > < / a > < span class = "lineno" > 860< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00861" > < / a > < span class = "lineno" > 861< / span >   dvec = qi;< / div >
< div class = "line" > < a name = "l00862" > < / a > < span class = "lineno" > 862< / span >   dis0 = 0;< / div >
< div class = "line" > < a name = "l00863" > < / a > < span class = "lineno" > 863< / span >   }< / div >
2017-02-23 06:26:44 +08:00
< div class = "line" > < a name = "l00864" > < / a > < span class = "lineno" > 864< / span >   < / div >
2017-04-06 19:33:41 +08:00
< div class = "line" > < a name = "l00865" > < / a > < span class = "lineno" > 865< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > size_t< / span > j = 0; j < list_size; j++) {< / div >
< div class = "line" > < a name = "l00866" > < / a > < span class = "lineno" > 866< / span >   < / div >
< div class = "line" > < a name = "l00867" > < / a > < span class = "lineno" > 867< / span >   pq.decode (list_codes, decoded_vec);< / div >
< div class = "line" > < a name = "l00868" > < / a > < span class = "lineno" > 868< / span >   list_codes += pq.code_size;< / div >
< div class = "line" > < a name = "l00869" > < / a > < span class = "lineno" > 869< / span >   < / div >
< div class = "line" > < a name = "l00870" > < / a > < span class = "lineno" > 870< / span >   < span class = "keywordtype" > float< / span > dis;< / div >
< div class = "line" > < a name = "l00871" > < / a > < span class = "lineno" > 871< / span >   < span class = "keywordflow" > if< / span > (metric_type == METRIC_INNER_PRODUCT) {< / div >
< div class = "line" > < a name = "l00872" > < / a > < span class = "lineno" > 872< / span >   dis = -dis0 - fvec_inner_product (decoded_vec, qi, d);< / div >
< div class = "line" > < a name = "l00873" > < / a > < span class = "lineno" > 873< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00874" > < / a > < span class = "lineno" > 874< / span >   dis = < a class = "code" href = "namespacefaiss.html#a7466bd32de31640860393a701eaac5ad" > fvec_L2sqr< / a > (decoded_vec, dvec, d);< / div >
< div class = "line" > < a name = "l00875" > < / a > < span class = "lineno" > 875< / span >   }< / div >
< div class = "line" > < a name = "l00876" > < / a > < span class = "lineno" > 876< / span >   < / div >
< div class = "line" > < a name = "l00877" > < / a > < span class = "lineno" > 877< / span >   < span class = "keywordflow" > if< / span > (dis < heap_sim[0]) {< / div >
< div class = "line" > < a name = "l00878" > < / a > < span class = "lineno" > 878< / span >   maxheap_pop (k, heap_sim, heap_ids);< / div >
< div class = "line" > < a name = "l00879" > < / a > < span class = "lineno" > 879< / span >   < span class = "keywordtype" > long< / span > < span class = "keywordtype" > id< / span > = store_pairs ? (key < < 32 | j) : list_ids[j];< / div >
< div class = "line" > < a name = "l00880" > < / a > < span class = "lineno" > 880< / span >   maxheap_push (k, heap_sim, heap_ids, dis, < span class = "keywordtype" > id< / span > );< / div >
< div class = "line" > < a name = "l00881" > < / a > < span class = "lineno" > 881< / span >   }< / div >
< div class = "line" > < a name = "l00882" > < / a > < span class = "lineno" > 882< / span >   }< / div >
< div class = "line" > < a name = "l00883" > < / a > < span class = "lineno" > 883< / span >   }< / div >
< div class = "line" > < a name = "l00884" > < / a > < span class = "lineno" > 884< / span >   < / div >
< div class = "line" > < a name = "l00885" > < / a > < span class = "lineno" > 885< / span >   < span class = "comment" > /*****************************************************< / span > < / div >
< div class = "line" > < a name = "l00886" > < / a > < span class = "lineno" > 886< / span >   < span class = "comment" > * Scanning codes with polysemous filtering< / span > < / div >
< div class = "line" > < a name = "l00887" > < / a > < span class = "lineno" > 887< / span >   < span class = "comment" > *****************************************************/< / span > < / div >
< div class = "line" > < a name = "l00888" > < / a > < span class = "lineno" > 888< / span >   < / div >
< div class = "line" > < a name = "l00889" > < / a > < span class = "lineno" > 889< / span >   < span class = "comment" > // code for the query< / span > < / div >
< div class = "line" > < a name = "l00890" > < / a > < span class = "lineno" > 890< / span >   < span class = "keywordtype" > size_t< / span > n_hamming_pass;< / div >
< div class = "line" > < a name = "l00891" > < / a > < span class = "lineno" > 891< / span >   < / div >
2017-03-21 01:33:21 +08:00
< div class = "line" > < a name = "l00892" > < / a > < span class = "lineno" > 892< / span >   < / div >
2017-04-06 19:33:41 +08:00
< div class = "line" > < a name = "l00893" > < / a > < span class = "lineno" > 893< / span >   < span class = "keyword" > template< / span > < < span class = "keyword" > class< / span > HammingComputer> < / div >
< div class = "line" > < a name = "l00894" > < / a > < span class = "lineno" > 894< / span >   < span class = "keywordtype" > void< / span > scan_list_polysemous_hc (< / div >
< div class = "line" > < a name = "l00895" > < / a > < span class = "lineno" > 895< / span >   < span class = "keywordtype" > size_t< / span > k, < span class = "keywordtype" > float< / span > * heap_sim, < span class = "keywordtype" > long< / span > * heap_ids, < span class = "keywordtype" > bool< / span > store_pairs)< / div >
< div class = "line" > < a name = "l00896" > < / a > < span class = "lineno" > 896< / span >   {< / div >
< div class = "line" > < a name = "l00897" > < / a > < span class = "lineno" > 897< / span >   < span class = "keywordtype" > float< / span > dis0 = precompute_list_tables ();< / div >
< div class = "line" > < a name = "l00898" > < / a > < span class = "lineno" > 898< / span >   < span class = "keywordtype" > int< / span > ht = ivfpq.polysemous_ht;< / div >
< div class = "line" > < a name = "l00899" > < / a > < span class = "lineno" > 899< / span >   < / div >
< div class = "line" > < a name = "l00900" > < / a > < span class = "lineno" > 900< / span >   < span class = "keywordtype" > int< / span > code_size = pq.code_size;< / div >
< div class = "line" > < a name = "l00901" > < / a > < span class = "lineno" > 901< / span >   < / div >
< div class = "line" > < a name = "l00902" > < / a > < span class = "lineno" > 902< / span >   HammingComputer hc (q_code.data(), code_size);< / div >
< div class = "line" > < a name = "l00903" > < / a > < span class = "lineno" > 903< / span >   < / div >
< div class = "line" > < a name = "l00904" > < / a > < span class = "lineno" > 904< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > size_t< / span > j = 0; j < list_size; j++) {< / div >
< div class = "line" > < a name = "l00905" > < / a > < span class = "lineno" > 905< / span >   < span class = "keyword" > const< / span > uint8_t *b_code = list_codes;< / div >
< div class = "line" > < a name = "l00906" > < / a > < span class = "lineno" > 906< / span >   < span class = "keywordtype" > int< / span > hd = hc.hamming (b_code);< / div >
< div class = "line" > < a name = "l00907" > < / a > < span class = "lineno" > 907< / span >   < span class = "keywordflow" > if< / span > (hd < ht) {< / div >
< div class = "line" > < a name = "l00908" > < / a > < span class = "lineno" > 908< / span >   n_hamming_pass ++;< / div >
< div class = "line" > < a name = "l00909" > < / a > < span class = "lineno" > 909< / span >   < / div >
< div class = "line" > < a name = "l00910" > < / a > < span class = "lineno" > 910< / span >   < span class = "keywordtype" > float< / span > dis = dis0;< / div >
< div class = "line" > < a name = "l00911" > < / a > < span class = "lineno" > 911< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > *tab = sim_table;< / div >
< div class = "line" > < a name = "l00912" > < / a > < span class = "lineno" > 912< / span >   < / div >
< div class = "line" > < a name = "l00913" > < / a > < span class = "lineno" > 913< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > size_t< / span > m = 0; m < pq.M; m++) {< / div >
< div class = "line" > < a name = "l00914" > < / a > < span class = "lineno" > 914< / span >   dis += tab[*b_code++];< / div >
< div class = "line" > < a name = "l00915" > < / a > < span class = "lineno" > 915< / span >   tab += pq.ksub;< / div >
< div class = "line" > < a name = "l00916" > < / a > < span class = "lineno" > 916< / span >   }< / div >
< div class = "line" > < a name = "l00917" > < / a > < span class = "lineno" > 917< / span >   < / div >
< div class = "line" > < a name = "l00918" > < / a > < span class = "lineno" > 918< / span >   < span class = "keywordflow" > if< / span > (dis < heap_sim[0]) {< / div >
< div class = "line" > < a name = "l00919" > < / a > < span class = "lineno" > 919< / span >   maxheap_pop (k, heap_sim, heap_ids);< / div >
< div class = "line" > < a name = "l00920" > < / a > < span class = "lineno" > 920< / span >   < span class = "keywordtype" > long< / span > < span class = "keywordtype" > id< / span > = store_pairs ? (key < < 32 | j) : list_ids[j];< / div >
< div class = "line" > < a name = "l00921" > < / a > < span class = "lineno" > 921< / span >   maxheap_push (k, heap_sim, heap_ids, dis, < span class = "keywordtype" > id< / span > );< / div >
< div class = "line" > < a name = "l00922" > < / a > < span class = "lineno" > 922< / span >   }< / div >
< div class = "line" > < a name = "l00923" > < / a > < span class = "lineno" > 923< / span >   }< / div >
< div class = "line" > < a name = "l00924" > < / a > < span class = "lineno" > 924< / span >   list_codes += code_size;< / div >
< div class = "line" > < a name = "l00925" > < / a > < span class = "lineno" > 925< / span >   }< / div >
< div class = "line" > < a name = "l00926" > < / a > < span class = "lineno" > 926< / span >   }< / div >
< div class = "line" > < a name = "l00927" > < / a > < span class = "lineno" > 927< / span >   < / div >
< div class = "line" > < a name = "l00928" > < / a > < span class = "lineno" > 928< / span >   < span class = "keywordtype" > void< / span > scan_list_polysemous (< / div >
< div class = "line" > < a name = "l00929" > < / a > < span class = "lineno" > 929< / span >   < span class = "keywordtype" > size_t< / span > k, < span class = "keywordtype" > float< / span > * heap_sim, < span class = "keywordtype" > long< / span > * heap_ids, < span class = "keywordtype" > bool< / span > store_pairs)< / div >
< div class = "line" > < a name = "l00930" > < / a > < span class = "lineno" > 930< / span >   {< / div >
< div class = "line" > < a name = "l00931" > < / a > < span class = "lineno" > 931< / span >   < span class = "keywordflow" > switch< / span > (pq.code_size) {< / div >
< div class = "line" > < a name = "l00932" > < / a > < span class = "lineno" > 932< / span >   < span class = "preprocessor" > #define HANDLE_CODE_SIZE(cs) \< / span > < / div >
< div class = "line" > < a name = "l00933" > < / a > < span class = "lineno" > 933< / span >   < span class = "preprocessor" > case cs: \< / span > < / div >
< div class = "line" > < a name = "l00934" > < / a > < span class = "lineno" > 934< / span >   < span class = "preprocessor" > scan_list_polysemous_hc < HammingComputer ## cs> \< / span > < / div >
< div class = "line" > < a name = "l00935" > < / a > < span class = "lineno" > 935< / span >   < span class = "preprocessor" > (k, heap_sim, heap_ids, store_pairs); \< / span > < / div >
< div class = "line" > < a name = "l00936" > < / a > < span class = "lineno" > 936< / span >   < span class = "preprocessor" > break< / span > < / div >
< div class = "line" > < a name = "l00937" > < / a > < span class = "lineno" > 937< / span >   < span class = "preprocessor" > < / span > HANDLE_CODE_SIZE(4);< / div >
< div class = "line" > < a name = "l00938" > < / a > < span class = "lineno" > 938< / span >   HANDLE_CODE_SIZE(8);< / div >
< div class = "line" > < a name = "l00939" > < / a > < span class = "lineno" > 939< / span >   HANDLE_CODE_SIZE(16);< / div >
< div class = "line" > < a name = "l00940" > < / a > < span class = "lineno" > 940< / span >   HANDLE_CODE_SIZE(20);< / div >
< div class = "line" > < a name = "l00941" > < / a > < span class = "lineno" > 941< / span >   HANDLE_CODE_SIZE(32);< / div >
< div class = "line" > < a name = "l00942" > < / a > < span class = "lineno" > 942< / span >   HANDLE_CODE_SIZE(64);< / div >
< div class = "line" > < a name = "l00943" > < / a > < span class = "lineno" > 943< / span >   < span class = "preprocessor" > #undef HANDLE_CODE_SIZE< / span > < / div >
< div class = "line" > < a name = "l00944" > < / a > < span class = "lineno" > 944< / span >   < span class = "preprocessor" > < / span > < span class = "keywordflow" > default< / span > :< / div >
< div class = "line" > < a name = "l00945" > < / a > < span class = "lineno" > 945< / span >   < span class = "keywordflow" > if< / span > (pq.code_size % 8 == 0)< / div >
< div class = "line" > < a name = "l00946" > < / a > < span class = "lineno" > 946< / span >   scan_list_polysemous_hc < HammingComputerM8> < / div >
< div class = "line" > < a name = "l00947" > < / a > < span class = "lineno" > 947< / span >   (k, heap_sim, heap_ids, store_pairs);< / div >
< div class = "line" > < a name = "l00948" > < / a > < span class = "lineno" > 948< / span >   < span class = "keywordflow" > else< / span > < / div >
< div class = "line" > < a name = "l00949" > < / a > < span class = "lineno" > 949< / span >   scan_list_polysemous_hc < HammingComputerM4> < / div >
< div class = "line" > < a name = "l00950" > < / a > < span class = "lineno" > 950< / span >   (k, heap_sim, heap_ids, store_pairs);< / div >
< div class = "line" > < a name = "l00951" > < / a > < span class = "lineno" > 951< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l00952" > < / a > < span class = "lineno" > 952< / span >   }< / div >
< div class = "line" > < a name = "l00953" > < / a > < span class = "lineno" > 953< / span >   }< / div >
< div class = "line" > < a name = "l00954" > < / a > < span class = "lineno" > 954< / span >   < / div >
< div class = "line" > < a name = "l00955" > < / a > < span class = "lineno" > 955< / span >   };< / div >
< div class = "line" > < a name = "l00956" > < / a > < span class = "lineno" > 956< / span >   < / div >
< div class = "line" > < a name = "l00957" > < / a > < span class = "lineno" > 957< / span >   < / div >
< div class = "line" > < a name = "l00958" > < / a > < span class = "lineno" > 958< / span >   < / div >
2017-03-21 01:33:21 +08:00
< div class = "line" > < a name = "l00959" > < / a > < span class = "lineno" > 959< / span >   < / div >
2017-04-06 19:33:41 +08:00
< div class = "line" > < a name = "l00960" > < / a > < span class = "lineno" > 960< / span >   } < span class = "comment" > // anonymous namespace< / span > < / div >
< div class = "line" > < a name = "l00961" > < / a > < span class = "lineno" > 961< / span >   < / div >
< div class = "line" > < a name = "l00962" > < / a > < span class = "lineno" > 962< / span >   < / div >
< div class = "line" > < a name = "l00963" > < / a > < span class = "lineno" > 963< / span >   IndexIVFPQStats indexIVFPQ_stats;< / div >
< div class = "line" > < a name = "l00964" > < / a > < span class = "lineno" > 964< / span >   < / div >
< div class = "line" > < a name = "l00965" > < / a > < span class = "lineno" > 965< / span >   < span class = "keywordtype" > void< / span > IndexIVFPQStats::reset () {< / div >
< div class = "line" > < a name = "l00966" > < / a > < span class = "lineno" > 966< / span >   memset (< span class = "keyword" > this< / span > , 0, < span class = "keyword" > sizeof< / span > (*< span class = "keyword" > this< / span > ));< / div >
< div class = "line" > < a name = "l00967" > < / a > < span class = "lineno" > 967< / span >   }< / div >
2017-03-21 01:33:21 +08:00
< div class = "line" > < a name = "l00968" > < / a > < span class = "lineno" > 968< / span >   < / div >
2017-04-06 19:33:41 +08:00
< div class = "line" > < a name = "l00969" > < / a > < span class = "lineno" > 969< / span >   < / div >
< div class = "line" > < a name = "l00970" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexIVFPQ.html#ad5ae3ae94b4776291f6abee5110c7c0c" > 970< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#ad5ae3ae94b4776291f6abee5110c7c0c" > IndexIVFPQ::search_knn_with_key< / a > (< / div >
< div class = "line" > < a name = "l00971" > < / a > < span class = "lineno" > 971< / span >   < span class = "keywordtype" > size_t< / span > nx,< / div >
< div class = "line" > < a name = "l00972" > < / a > < span class = "lineno" > 972< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > * qx,< / div >
< div class = "line" > < a name = "l00973" > < / a > < span class = "lineno" > 973< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > long< / span > * keys,< / div >
< div class = "line" > < a name = "l00974" > < / a > < span class = "lineno" > 974< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > * coarse_dis,< / div >
< div class = "line" > < a name = "l00975" > < / a > < span class = "lineno" > 975< / span >   < a class = "code" href = "structfaiss_1_1HeapArray.html" > float_maxheap_array_t< / a > * res,< / div >
< div class = "line" > < a name = "l00976" > < / a > < span class = "lineno" > 976< / span >   < span class = "keywordtype" > bool< / span > store_pairs)< span class = "keyword" > const< / span > < / div >
< div class = "line" > < a name = "l00977" > < / a > < span class = "lineno" > 977< / span >   < span class = "keyword" > < / span > {< / div >
< div class = "line" > < a name = "l00978" > < / a > < span class = "lineno" > 978< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > size_t< / span > k = res-> < a class = "code" href = "structfaiss_1_1HeapArray.html#a1ee98429c766c77235f78c6d9aa32bb4" > k< / a > ;< / div >
< div class = "line" > < a name = "l00979" > < / a > < span class = "lineno" > 979< / span >   < / div >
< div class = "line" > < a name = "l00980" > < / a > < span class = "lineno" > 980< / span >   < span class = "preprocessor" > #pragma omp parallel< / span > < / div >
< div class = "line" > < a name = "l00981" > < / a > < span class = "lineno" > 981< / span >   < span class = "preprocessor" > < / span > {< / div >
< div class = "line" > < a name = "l00982" > < / a > < span class = "lineno" > 982< / span >   InvertedListScanner< long> qt (*< span class = "keyword" > this< / span > );< / div >
< div class = "line" > < a name = "l00983" > < / a > < span class = "lineno" > 983< / span >   < span class = "keywordtype" > size_t< / span > stats_nlist = 0;< / div >
< div class = "line" > < a name = "l00984" > < / a > < span class = "lineno" > 984< / span >   < span class = "keywordtype" > size_t< / span > stats_ncode = 0;< / div >
< div class = "line" > < a name = "l00985" > < / a > < span class = "lineno" > 985< / span >   uint64_t init_query_cycles = 0;< / div >
< div class = "line" > < a name = "l00986" > < / a > < span class = "lineno" > 986< / span >   uint64_t scan_cycles = 0;< / div >
< div class = "line" > < a name = "l00987" > < / a > < span class = "lineno" > 987< / span >   uint64_t heap_cycles = 0;< / div >
< div class = "line" > < a name = "l00988" > < / a > < span class = "lineno" > 988< / span >   < / div >
< div class = "line" > < a name = "l00989" > < / a > < span class = "lineno" > 989< / span >   < span class = "preprocessor" > #pragma omp for< / span > < / div >
< div class = "line" > < a name = "l00990" > < / a > < span class = "lineno" > 990< / span >   < span class = "preprocessor" > < / span > < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > size_t< / span > i = 0; i < nx; i++) {< / div >
< div class = "line" > < a name = "l00991" > < / a > < span class = "lineno" > 991< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > *qi = qx + i * < a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > ;< / div >
< div class = "line" > < a name = "l00992" > < / a > < span class = "lineno" > 992< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > long< / span > * keysi = keys + i * < a class = "code" href = "structfaiss_1_1IndexIVF.html#affed235eadf27a13d753ee4d33a1dc58" > nprobe< / a > ;< / div >
< div class = "line" > < a name = "l00993" > < / a > < span class = "lineno" > 993< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > *coarse_dis_i = coarse_dis + i * < a class = "code" href = "structfaiss_1_1IndexIVF.html#affed235eadf27a13d753ee4d33a1dc58" > nprobe< / a > ;< / div >
< div class = "line" > < a name = "l00994" > < / a > < span class = "lineno" > 994< / span >   < span class = "keywordtype" > float< / span > * heap_sim = res-> < a class = "code" href = "structfaiss_1_1HeapArray.html#ae97911f6f85d152a5b45e459063b6858" > get_val< / a > (i);< / div >
< div class = "line" > < a name = "l00995" > < / a > < span class = "lineno" > 995< / span >   < span class = "keywordtype" > long< / span > * heap_ids = res-> < a class = "code" href = "structfaiss_1_1HeapArray.html#af6aa57addaa1bc754d09a2a08be4df49" > get_ids< / a > (i);< / div >
< div class = "line" > < a name = "l00996" > < / a > < span class = "lineno" > 996< / span >   < / div >
< div class = "line" > < a name = "l00997" > < / a > < span class = "lineno" > 997< / span >   uint64_t t0;< / div >
< div class = "line" > < a name = "l00998" > < / a > < span class = "lineno" > 998< / span >   TIC;< / div >
< div class = "line" > < a name = "l00999" > < / a > < span class = "lineno" > 999< / span >   maxheap_heapify (k, heap_sim, heap_ids);< / div >
< div class = "line" > < a name = "l01000" > < / a > < span class = "lineno" > 1000< / span >   heap_cycles += TOC;< / div >
2017-03-21 01:33:21 +08:00
< div class = "line" > < a name = "l01001" > < / a > < span class = "lineno" > 1001< / span >   < / div >
2017-04-06 19:33:41 +08:00
< div class = "line" > < a name = "l01002" > < / a > < span class = "lineno" > 1002< / span >   TIC;< / div >
< div class = "line" > < a name = "l01003" > < / a > < span class = "lineno" > 1003< / span >   qt.init_query (qi);< / div >
< div class = "line" > < a name = "l01004" > < / a > < span class = "lineno" > 1004< / span >   init_query_cycles += TOC;< / div >
< div class = "line" > < a name = "l01005" > < / a > < span class = "lineno" > 1005< / span >   < / div >
< div class = "line" > < a name = "l01006" > < / a > < span class = "lineno" > 1006< / span >   < span class = "keywordtype" > size_t< / span > nscan = 0;< / div >
2017-03-21 01:33:21 +08:00
< div class = "line" > < a name = "l01007" > < / a > < span class = "lineno" > 1007< / span >   < / div >
2017-04-06 19:33:41 +08:00
< div class = "line" > < a name = "l01008" > < / a > < span class = "lineno" > 1008< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > size_t< / span > ik = 0; ik < < a class = "code" href = "structfaiss_1_1IndexIVF.html#affed235eadf27a13d753ee4d33a1dc58" > nprobe< / a > ; ik++) {< / div >
< div class = "line" > < a name = "l01009" > < / a > < span class = "lineno" > 1009< / span >   < span class = "keywordtype" > long< / span > key = keysi[ik]; < span class = "comment" > /* select the list */< / span > < / div >
< div class = "line" > < a name = "l01010" > < / a > < span class = "lineno" > 1010< / span >   < span class = "keywordflow" > if< / span > (key < 0) {< / div >
< div class = "line" > < a name = "l01011" > < / a > < span class = "lineno" > 1011< / span >   < span class = "comment" > // not enough centroids for multiprobe< / span > < / div >
< div class = "line" > < a name = "l01012" > < / a > < span class = "lineno" > 1012< / span >   < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l01013" > < / a > < span class = "lineno" > 1013< / span >   }< / div >
< div class = "line" > < a name = "l01014" > < / a > < span class = "lineno" > 1014< / span >   < span class = "keywordflow" > if< / span > (key > = (< span class = "keywordtype" > long< / span > ) nlist) {< / div >
< div class = "line" > < a name = "l01015" > < / a > < span class = "lineno" > 1015< / span >   fprintf (stderr, < span class = "stringliteral" > " Invalid key=%ld nlist=%ld\n" < / span > , key, nlist);< / div >
< div class = "line" > < a name = "l01016" > < / a > < span class = "lineno" > 1016< / span >   < span class = "keywordflow" > throw< / span > ;< / div >
< div class = "line" > < a name = "l01017" > < / a > < span class = "lineno" > 1017< / span >   }< / div >
< div class = "line" > < a name = "l01018" > < / a > < span class = "lineno" > 1018< / span >   < span class = "keywordtype" > size_t< / span > list_size = < a class = "code" href = "structfaiss_1_1IndexIVF.html#af16d325f5bef22b2e5f90ceea796e80d" > ids< / a > [key].size();< / div >
< div class = "line" > < a name = "l01019" > < / a > < span class = "lineno" > 1019< / span >   stats_nlist ++;< / div >
< div class = "line" > < a name = "l01020" > < / a > < span class = "lineno" > 1020< / span >   nscan += list_size;< / div >
< div class = "line" > < a name = "l01021" > < / a > < span class = "lineno" > 1021< / span >   < / div >
< div class = "line" > < a name = "l01022" > < / a > < span class = "lineno" > 1022< / span >   < span class = "keywordflow" > if< / span > (list_size == 0) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l01023" > < / a > < span class = "lineno" > 1023< / span >   < / div >
< div class = "line" > < a name = "l01024" > < / a > < span class = "lineno" > 1024< / span >   qt.init_list (key, coarse_dis_i[ik],< / div >
< div class = "line" > < a name = "l01025" > < / a > < span class = "lineno" > 1025< / span >   list_size, < a class = "code" href = "structfaiss_1_1IndexIVF.html#af16d325f5bef22b2e5f90ceea796e80d" > ids< / a > [key].data(),< / div >
< div class = "line" > < a name = "l01026" > < / a > < span class = "lineno" > 1026< / span >   codes[key].data());< / div >
< div class = "line" > < a name = "l01027" > < / a > < span class = "lineno" > 1027< / span >   < / div >
< div class = "line" > < a name = "l01028" > < / a > < span class = "lineno" > 1028< / span >   TIC;< / div >
< div class = "line" > < a name = "l01029" > < / a > < span class = "lineno" > 1029< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a3093a0a3e128eafce6e0583b75e9662e" > polysemous_ht< / a > > 0) {< / div >
< div class = "line" > < a name = "l01030" > < / a > < span class = "lineno" > 1030< / span >   qt.scan_list_polysemous< / div >
< div class = "line" > < a name = "l01031" > < / a > < span class = "lineno" > 1031< / span >   (k, heap_sim, heap_ids, store_pairs);< / div >
< div class = "line" > < a name = "l01032" > < / a > < span class = "lineno" > 1032< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (list_size > < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a7430fc4fa030c96497abced3b68358d4" > scan_table_threshold< / a > ) {< / div >
< div class = "line" > < a name = "l01033" > < / a > < span class = "lineno" > 1033< / span >   qt.scan_list_with_table (k, heap_sim, heap_ids, store_pairs);< / div >
< div class = "line" > < a name = "l01034" > < / a > < span class = "lineno" > 1034< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l01035" > < / a > < span class = "lineno" > 1035< / span >   qt.scan_on_the_fly_dist (k, heap_sim, heap_ids, store_pairs);< / div >
< div class = "line" > < a name = "l01036" > < / a > < span class = "lineno" > 1036< / span >   }< / div >
< div class = "line" > < a name = "l01037" > < / a > < span class = "lineno" > 1037< / span >   scan_cycles += TOC;< / div >
< div class = "line" > < a name = "l01038" > < / a > < span class = "lineno" > 1038< / span >   < / div >
< div class = "line" > < a name = "l01039" > < / a > < span class = "lineno" > 1039< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a77501995b3671e377102d2db1a93ade4" > max_codes< / a > & & nscan > = < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a77501995b3671e377102d2db1a93ade4" > max_codes< / a > ) < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l01040" > < / a > < span class = "lineno" > 1040< / span >   }< / div >
< div class = "line" > < a name = "l01041" > < / a > < span class = "lineno" > 1041< / span >   stats_ncode += nscan;< / div >
< div class = "line" > < a name = "l01042" > < / a > < span class = "lineno" > 1042< / span >   TIC;< / div >
< div class = "line" > < a name = "l01043" > < / a > < span class = "lineno" > 1043< / span >   maxheap_reorder (k, heap_sim, heap_ids);< / div >
< div class = "line" > < a name = "l01044" > < / a > < span class = "lineno" > 1044< / span >   < / div >
< div class = "line" > < a name = "l01045" > < / a > < span class = "lineno" > 1045< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "structfaiss_1_1Index.html#a8e18f641854b2bde83ecff0a2f9a6f4e" > metric_type< / a > == METRIC_INNER_PRODUCT) {< / div >
< div class = "line" > < a name = "l01046" > < / a > < span class = "lineno" > 1046< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > size_t< / span > j = 0; j < k; j++)< / div >
< div class = "line" > < a name = "l01047" > < / a > < span class = "lineno" > 1047< / span >   heap_sim[j] = -heap_sim[j];< / div >
< div class = "line" > < a name = "l01048" > < / a > < span class = "lineno" > 1048< / span >   }< / div >
< div class = "line" > < a name = "l01049" > < / a > < span class = "lineno" > 1049< / span >   heap_cycles += TOC;< / div >
< div class = "line" > < a name = "l01050" > < / a > < span class = "lineno" > 1050< / span >   }< / div >
< div class = "line" > < a name = "l01051" > < / a > < span class = "lineno" > 1051< / span >   < / div >
< div class = "line" > < a name = "l01052" > < / a > < span class = "lineno" > 1052< / span >   < span class = "preprocessor" > #pragma omp critical< / span > < / div >
< div class = "line" > < a name = "l01053" > < / a > < span class = "lineno" > 1053< / span >   < span class = "preprocessor" > < / span > {< / div >
< div class = "line" > < a name = "l01054" > < / a > < span class = "lineno" > 1054< / span >   indexIVFPQ_stats.n_hamming_pass += qt.n_hamming_pass;< / div >
< div class = "line" > < a name = "l01055" > < / a > < span class = "lineno" > 1055< / span >   indexIVFPQ_stats.nlist += stats_nlist;< / div >
< div class = "line" > < a name = "l01056" > < / a > < span class = "lineno" > 1056< / span >   indexIVFPQ_stats.ncode += stats_ncode;< / div >
< div class = "line" > < a name = "l01057" > < / a > < span class = "lineno" > 1057< / span >   < / div >
< div class = "line" > < a name = "l01058" > < / a > < span class = "lineno" > 1058< / span >   indexIVFPQ_stats.init_query_cycles += init_query_cycles;< / div >
< div class = "line" > < a name = "l01059" > < / a > < span class = "lineno" > 1059< / span >   indexIVFPQ_stats.init_list_cycles += qt.init_list_cycles;< / div >
< div class = "line" > < a name = "l01060" > < / a > < span class = "lineno" > 1060< / span >   indexIVFPQ_stats.scan_cycles += scan_cycles - qt.init_list_cycles;< / div >
< div class = "line" > < a name = "l01061" > < / a > < span class = "lineno" > 1061< / span >   indexIVFPQ_stats.heap_cycles += heap_cycles;< / div >
< div class = "line" > < a name = "l01062" > < / a > < span class = "lineno" > 1062< / span >   }< / div >
< div class = "line" > < a name = "l01063" > < / a > < span class = "lineno" > 1063< / span >   < / div >
< div class = "line" > < a name = "l01064" > < / a > < span class = "lineno" > 1064< / span >   }< / div >
< div class = "line" > < a name = "l01065" > < / a > < span class = "lineno" > 1065< / span >   indexIVFPQ_stats.nq += nx;< / div >
2017-03-21 01:33:21 +08:00
< div class = "line" > < a name = "l01066" > < / a > < span class = "lineno" > 1066< / span >   }< / div >
< div class = "line" > < a name = "l01067" > < / a > < span class = "lineno" > 1067< / span >   < / div >
< div class = "line" > < a name = "l01068" > < / a > < span class = "lineno" > 1068< / span >   < / div >
2017-04-06 19:33:41 +08:00
< div class = "line" > < a name = "l01069" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexIVFPQ.html#afa7c9a7ae0316d2a05acb60ab2b7a31a" > 1069< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#afa7c9a7ae0316d2a05acb60ab2b7a31a" > IndexIVFPQ::search< / a > (< a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > n, < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > *x, < a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > k,< / div >
< div class = "line" > < a name = "l01070" > < / a > < span class = "lineno" > 1070< / span >   < span class = "keywordtype" > float< / span > *distances, < a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > *labels)< span class = "keyword" > const< / span > < / div >
< div class = "line" > < a name = "l01071" > < / a > < span class = "lineno" > 1071< / span >   < span class = "keyword" > < / span > {< / div >
< div class = "line" > < a name = "l01072" > < / a > < span class = "lineno" > 1072< / span >   < span class = "keywordtype" > long< / span > * idx = < span class = "keyword" > new< / span > < span class = "keywordtype" > long< / span > [n * < a class = "code" href = "structfaiss_1_1IndexIVF.html#affed235eadf27a13d753ee4d33a1dc58" > nprobe< / a > ];< / div >
< div class = "line" > < a name = "l01073" > < / a > < span class = "lineno" > 1073< / span >   < span class = "keywordtype" > float< / span > * coarse_dis = < span class = "keyword" > new< / span > < span class = "keywordtype" > float< / span > [n * < a class = "code" href = "structfaiss_1_1IndexIVF.html#affed235eadf27a13d753ee4d33a1dc58" > nprobe< / a > ];< / div >
< div class = "line" > < a name = "l01074" > < / a > < span class = "lineno" > 1074< / span >   uint64_t t0;< / div >
< div class = "line" > < a name = "l01075" > < / a > < span class = "lineno" > 1075< / span >   TIC;< / div >
< div class = "line" > < a name = "l01076" > < / a > < span class = "lineno" > 1076< / span >   quantizer-> search (n, x, < a class = "code" href = "structfaiss_1_1IndexIVF.html#affed235eadf27a13d753ee4d33a1dc58" > nprobe< / a > , coarse_dis, idx);< / div >
< div class = "line" > < a name = "l01077" > < / a > < span class = "lineno" > 1077< / span >   indexIVFPQ_stats.assign_cycles += TOC;< / div >
< div class = "line" > < a name = "l01078" > < / a > < span class = "lineno" > 1078< / span >   < / div >
< div class = "line" > < a name = "l01079" > < / a > < span class = "lineno" > 1079< / span >   TIC;< / div >
< div class = "line" > < a name = "l01080" > < / a > < span class = "lineno" > 1080< / span >   < a class = "code" href = "structfaiss_1_1HeapArray.html" > float_maxheap_array_t< / a > res = { size_t(n), size_t(k), labels, distances};< / div >
< div class = "line" > < a name = "l01081" > < / a > < span class = "lineno" > 1081< / span >   < / div >
< div class = "line" > < a name = "l01082" > < / a > < span class = "lineno" > 1082< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#ad5ae3ae94b4776291f6abee5110c7c0c" > search_knn_with_key< / a > (n, x, idx, coarse_dis, & res);< / div >
< div class = "line" > < a name = "l01083" > < / a > < span class = "lineno" > 1083< / span >   < span class = "keyword" > delete< / span > [] idx;< / div >
< div class = "line" > < a name = "l01084" > < / a > < span class = "lineno" > 1084< / span >   < span class = "keyword" > delete< / span > [] coarse_dis;< / div >
< div class = "line" > < a name = "l01085" > < / a > < span class = "lineno" > 1085< / span >   indexIVFPQ_stats.search_cycles += TOC;< / div >
< div class = "line" > < a name = "l01086" > < / a > < span class = "lineno" > 1086< / span >   }< / div >
< div class = "line" > < a name = "l01087" > < / a > < span class = "lineno" > 1087< / span >   < / div >
< div class = "line" > < a name = "l01088" > < / a > < span class = "lineno" > 1088< / span >   < / div >
< div class = "line" > < a name = "l01089" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexIVFPQ.html#acd807799dc56dcef0f221847a2af86f7" > 1089< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#acd807799dc56dcef0f221847a2af86f7" > IndexIVFPQ::reset< / a > ()< / div >
< div class = "line" > < a name = "l01090" > < / a > < span class = "lineno" > 1090< / span >   {< / div >
< div class = "line" > < a name = "l01091" > < / a > < span class = "lineno" > 1091< / span >   < a class = "code" href = "structfaiss_1_1IndexIVF.html#a47a3b7665e9d2be41c6d3b2e9144b73f" > IndexIVF::reset< / a > ();< / div >
< div class = "line" > < a name = "l01092" > < / a > < span class = "lineno" > 1092< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > size_t< / span > key = 0; key < < a class = "code" href = "structfaiss_1_1IndexIVF.html#ab38fde4c923abefc4185eb7450b5b95b" > nlist< / a > ; key++) {< / div >
< div class = "line" > < a name = "l01093" > < / a > < span class = "lineno" > 1093< / span >   codes[key].clear();< / div >
< div class = "line" > < a name = "l01094" > < / a > < span class = "lineno" > 1094< / span >   }< / div >
< div class = "line" > < a name = "l01095" > < / a > < span class = "lineno" > 1095< / span >   }< / div >
< div class = "line" > < a name = "l01096" > < / a > < span class = "lineno" > 1096< / span >   < / div >
< div class = "line" > < a name = "l01097" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexIVFPQ.html#ad9fa584ac2e12e9b9bb25a737efcc4d9" > 1097< / a > < / span >   < span class = "keywordtype" > long< / span > < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#ad9fa584ac2e12e9b9bb25a737efcc4d9" > IndexIVFPQ::remove_ids< / a > (< span class = "keyword" > const< / span > < a class = "code" href = "structfaiss_1_1IDSelector.html" > IDSelector< / a > & sel)< / div >
< div class = "line" > < a name = "l01098" > < / a > < span class = "lineno" > 1098< / span >   {< / div >
< div class = "line" > < a name = "l01099" > < / a > < span class = "lineno" > 1099< / span >   FAISS_ASSERT (!< a class = "code" href = "structfaiss_1_1IndexIVF.html#aedd0c14b5654295b291638ec7f9f9517" > maintain_direct_map< / a > ||< / div >
< div class = "line" > < a name = "l01100" > < / a > < span class = "lineno" > 1100< / span >   !< span class = "stringliteral" > " direct map remove not implemented" < / span > );< / div >
< div class = "line" > < a name = "l01101" > < / a > < span class = "lineno" > 1101< / span >   < span class = "keywordtype" > long< / span > nremove = 0;< / div >
< div class = "line" > < a name = "l01102" > < / a > < span class = "lineno" > 1102< / span >   < span class = "preprocessor" > #pragma omp parallel for reduction(+: nremove)< / span > < / div >
< div class = "line" > < a name = "l01103" > < / a > < span class = "lineno" > 1103< / span >   < span class = "preprocessor" > < / span > < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > long< / span > i = 0; i < < a class = "code" href = "structfaiss_1_1IndexIVF.html#ab38fde4c923abefc4185eb7450b5b95b" > nlist< / a > ; i++) {< / div >
< div class = "line" > < a name = "l01104" > < / a > < span class = "lineno" > 1104< / span >   std::vector< idx_t> & idsi = < a class = "code" href = "structfaiss_1_1IndexIVF.html#af16d325f5bef22b2e5f90ceea796e80d" > ids< / a > [i];< / div >
< div class = "line" > < a name = "l01105" > < / a > < span class = "lineno" > 1105< / span >   uint8_t * codesi = codes[i].data();< / div >
< div class = "line" > < a name = "l01106" > < / a > < span class = "lineno" > 1106< / span >   < / div >
< div class = "line" > < a name = "l01107" > < / a > < span class = "lineno" > 1107< / span >   < span class = "keywordtype" > long< / span > l = idsi.size(), j = 0;< / div >
< div class = "line" > < a name = "l01108" > < / a > < span class = "lineno" > 1108< / span >   < span class = "keywordflow" > while< / span > (j < l) {< / div >
< div class = "line" > < a name = "l01109" > < / a > < span class = "lineno" > 1109< / span >   < span class = "keywordflow" > if< / span > (sel.is_member (idsi[j])) {< / div >
< div class = "line" > < a name = "l01110" > < / a > < span class = "lineno" > 1110< / span >   l--;< / div >
< div class = "line" > < a name = "l01111" > < / a > < span class = "lineno" > 1111< / span >   idsi [j] = idsi [l];< / div >
< div class = "line" > < a name = "l01112" > < / a > < span class = "lineno" > 1112< / span >   memmove (codesi + j * code_size,< / div >
< div class = "line" > < a name = "l01113" > < / a > < span class = "lineno" > 1113< / span >   codesi + l * code_size, code_size);< / div >
< div class = "line" > < a name = "l01114" > < / a > < span class = "lineno" > 1114< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l01115" > < / a > < span class = "lineno" > 1115< / span >   j++;< / div >
< div class = "line" > < a name = "l01116" > < / a > < span class = "lineno" > 1116< / span >   }< / div >
< div class = "line" > < a name = "l01117" > < / a > < span class = "lineno" > 1117< / span >   }< / div >
< div class = "line" > < a name = "l01118" > < / a > < span class = "lineno" > 1118< / span >   < span class = "keywordflow" > if< / span > (l < idsi.size()) {< / div >
< div class = "line" > < a name = "l01119" > < / a > < span class = "lineno" > 1119< / span >   nremove += idsi.size() - l;< / div >
< div class = "line" > < a name = "l01120" > < / a > < span class = "lineno" > 1120< / span >   idsi.resize (l);< / div >
< div class = "line" > < a name = "l01121" > < / a > < span class = "lineno" > 1121< / span >   codes[i].resize (l * code_size);< / div >
< div class = "line" > < a name = "l01122" > < / a > < span class = "lineno" > 1122< / span >   }< / div >
< div class = "line" > < a name = "l01123" > < / a > < span class = "lineno" > 1123< / span >   }< / div >
< div class = "line" > < a name = "l01124" > < / a > < span class = "lineno" > 1124< / span >   < a class = "code" href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > ntotal< / a > -= nremove;< / div >
< div class = "line" > < a name = "l01125" > < / a > < span class = "lineno" > 1125< / span >   < span class = "keywordflow" > return< / span > nremove;< / div >
< div class = "line" > < a name = "l01126" > < / a > < span class = "lineno" > 1126< / span >   }< / div >
< div class = "line" > < a name = "l01127" > < / a > < span class = "lineno" > 1127< / span >   < / div >
< div class = "line" > < a name = "l01128" > < / a > < span class = "lineno" > 1128< / span >   < / div >
< div class = "line" > < a name = "l01129" > < / a > < span class = "lineno" > 1129< / span >   IndexIVFPQ::IndexIVFPQ ()< / div >
< div class = "line" > < a name = "l01130" > < / a > < span class = "lineno" > 1130< / span >   {< / div >
< div class = "line" > < a name = "l01131" > < / a > < span class = "lineno" > 1131< / span >   < span class = "comment" > // initialize some runtime values< / span > < / div >
< div class = "line" > < a name = "l01132" > < / a > < span class = "lineno" > 1132< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a1c66ff073c18a1edbe8444c24d870583" > use_precomputed_table< / a > = 0;< / div >
< div class = "line" > < a name = "l01133" > < / a > < span class = "lineno" > 1133< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a7430fc4fa030c96497abced3b68358d4" > scan_table_threshold< / a > = 0;< / div >
< div class = "line" > < a name = "l01134" > < / a > < span class = "lineno" > 1134< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a9d5373633df7a9bec4de69400b9adeed" > do_polysemous_training< / a > = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l01135" > < / a > < span class = "lineno" > 1135< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a3093a0a3e128eafce6e0583b75e9662e" > polysemous_ht< / a > = 0;< / div >
< div class = "line" > < a name = "l01136" > < / a > < span class = "lineno" > 1136< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a77501995b3671e377102d2db1a93ade4" > max_codes< / a > = 0;< / div >
< div class = "line" > < a name = "l01137" > < / a > < span class = "lineno" > 1137< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a2b14cbb5acb3fc28a4df8fde3f5567cd" > polysemous_training< / a > = < span class = "keyword" > nullptr< / span > ;< / div >
< div class = "line" > < a name = "l01138" > < / a > < span class = "lineno" > 1138< / span >   }< / div >
< div class = "line" > < a name = "l01139" > < / a > < span class = "lineno" > 1139< / span >   < / div >
< div class = "line" > < a name = "l01140" > < / a > < span class = "lineno" > 1140< / span >   < / div >
< div class = "line" > < a name = "l01141" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1CodeCmp.html" > 1141< / a > < / span >   < span class = "keyword" > struct < / span > < a class = "code" href = "structfaiss_1_1CodeCmp.html" > CodeCmp< / a > {< / div >
< div class = "line" > < a name = "l01142" > < / a > < span class = "lineno" > 1142< / span >   < span class = "keyword" > const< / span > uint8_t *tab;< / div >
< div class = "line" > < a name = "l01143" > < / a > < span class = "lineno" > 1143< / span >   < span class = "keywordtype" > size_t< / span > code_size;< / div >
< div class = "line" > < a name = "l01144" > < / a > < span class = "lineno" > 1144< / span >   < span class = "keywordtype" > bool< / span > operator () (< span class = "keywordtype" > int< / span > a, < span class = "keywordtype" > int< / span > b)< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l01145" > < / a > < span class = "lineno" > 1145< / span >   < span class = "keywordflow" > return< / span > cmp (a, b) > 0;< / div >
< div class = "line" > < a name = "l01146" > < / a > < span class = "lineno" > 1146< / span >   }< / div >
< div class = "line" > < a name = "l01147" > < / a > < span class = "lineno" > 1147< / span >   < span class = "keywordtype" > int< / span > cmp (< span class = "keywordtype" > int< / span > a, < span class = "keywordtype" > int< / span > b)< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l01148" > < / a > < span class = "lineno" > 1148< / span >   < span class = "keywordflow" > return< / span > memcmp (tab + a * code_size, tab + b * code_size,< / div >
< div class = "line" > < a name = "l01149" > < / a > < span class = "lineno" > 1149< / span >   code_size);< / div >
< div class = "line" > < a name = "l01150" > < / a > < span class = "lineno" > 1150< / span >   }< / div >
< div class = "line" > < a name = "l01151" > < / a > < span class = "lineno" > 1151< / span >   };< / div >
< div class = "line" > < a name = "l01152" > < / a > < span class = "lineno" > 1152< / span >   < / div >
< div class = "line" > < a name = "l01153" > < / a > < span class = "lineno" > 1153< / span >   < / div >
< div class = "line" > < a name = "l01154" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexIVFPQ.html#aee355b57acde203a3caed46a93e16a3c" > 1154< / a > < / span >   < span class = "keywordtype" > size_t< / span > < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#aee355b57acde203a3caed46a93e16a3c" > IndexIVFPQ::find_duplicates< / a > (< a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > *dup_ids, < span class = "keywordtype" > size_t< / span > *lims)< span class = "keyword" > const< / span > < / div >
< div class = "line" > < a name = "l01155" > < / a > < span class = "lineno" > 1155< / span >   < span class = "keyword" > < / span > {< / div >
< div class = "line" > < a name = "l01156" > < / a > < span class = "lineno" > 1156< / span >   < span class = "keywordtype" > size_t< / span > ngroup = 0;< / div >
< div class = "line" > < a name = "l01157" > < / a > < span class = "lineno" > 1157< / span >   lims[0] = 0;< / div >
< div class = "line" > < a name = "l01158" > < / a > < span class = "lineno" > 1158< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > size_t< / span > list_no = 0; list_no < < a class = "code" href = "structfaiss_1_1IndexIVF.html#ab38fde4c923abefc4185eb7450b5b95b" > nlist< / a > ; list_no++) {< / div >
< div class = "line" > < a name = "l01159" > < / a > < span class = "lineno" > 1159< / span >   < span class = "keywordtype" > size_t< / span > n = < a class = "code" href = "structfaiss_1_1IndexIVF.html#af16d325f5bef22b2e5f90ceea796e80d" > ids< / a > [list_no].size();< / div >
< div class = "line" > < a name = "l01160" > < / a > < span class = "lineno" > 1160< / span >   std::vector< int> ord (n);< / div >
< div class = "line" > < a name = "l01161" > < / a > < span class = "lineno" > 1161< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > i = 0; i < n; i++) ord[i] = i;< / div >
< div class = "line" > < a name = "l01162" > < / a > < span class = "lineno" > 1162< / span >   < a class = "code" href = "structfaiss_1_1CodeCmp.html" > CodeCmp< / a > cs = { codes[list_no].data(), code_size };< / div >
< div class = "line" > < a name = "l01163" > < / a > < span class = "lineno" > 1163< / span >   std::sort (ord.begin(), ord.end(), cs);< / div >
2017-03-21 01:33:21 +08:00
< div class = "line" > < a name = "l01164" > < / a > < span class = "lineno" > 1164< / span >   < / div >
2017-04-06 19:33:41 +08:00
< div class = "line" > < a name = "l01165" > < / a > < span class = "lineno" > 1165< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > *list_ids = < a class = "code" href = "structfaiss_1_1IndexIVF.html#af16d325f5bef22b2e5f90ceea796e80d" > ids< / a > [list_no].data();< / div >
< div class = "line" > < a name = "l01166" > < / a > < span class = "lineno" > 1166< / span >   < span class = "keywordtype" > int< / span > prev = -1; < span class = "comment" > // all elements from prev to i-1 are equal< / span > < / div >
< div class = "line" > < a name = "l01167" > < / a > < span class = "lineno" > 1167< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > i = 0; i < n; i++) {< / div >
< div class = "line" > < a name = "l01168" > < / a > < span class = "lineno" > 1168< / span >   < span class = "keywordflow" > if< / span > (prev > = 0 & & cs.cmp (ord [prev], ord [i]) == 0) {< / div >
< div class = "line" > < a name = "l01169" > < / a > < span class = "lineno" > 1169< / span >   < span class = "comment" > // same as previous => remember< / span > < / div >
< div class = "line" > < a name = "l01170" > < / a > < span class = "lineno" > 1170< / span >   < span class = "keywordflow" > if< / span > (prev + 1 == i) { < span class = "comment" > // start new group< / span > < / div >
< div class = "line" > < a name = "l01171" > < / a > < span class = "lineno" > 1171< / span >   ngroup++;< / div >
< div class = "line" > < a name = "l01172" > < / a > < span class = "lineno" > 1172< / span >   lims[ngroup] = lims[ngroup - 1];< / div >
< div class = "line" > < a name = "l01173" > < / a > < span class = "lineno" > 1173< / span >   dup_ids [lims [ngroup]++] = list_ids [ord [prev]];< / div >
< div class = "line" > < a name = "l01174" > < / a > < span class = "lineno" > 1174< / span >   }< / div >
< div class = "line" > < a name = "l01175" > < / a > < span class = "lineno" > 1175< / span >   dup_ids [lims [ngroup]++] = list_ids [ord [i]];< / div >
< div class = "line" > < a name = "l01176" > < / a > < span class = "lineno" > 1176< / span >   } < span class = "keywordflow" > else< / span > { < span class = "comment" > // not same as previous.< / span > < / div >
< div class = "line" > < a name = "l01177" > < / a > < span class = "lineno" > 1177< / span >   prev = i;< / div >
< div class = "line" > < a name = "l01178" > < / a > < span class = "lineno" > 1178< / span >   }< / div >
< div class = "line" > < a name = "l01179" > < / a > < span class = "lineno" > 1179< / span >   }< / div >
< div class = "line" > < a name = "l01180" > < / a > < span class = "lineno" > 1180< / span >   }< / div >
< div class = "line" > < a name = "l01181" > < / a > < span class = "lineno" > 1181< / span >   < span class = "keywordflow" > return< / span > ngroup;< / div >
< div class = "line" > < a name = "l01182" > < / a > < span class = "lineno" > 1182< / span >   }< / div >
< div class = "line" > < a name = "l01183" > < / a > < span class = "lineno" > 1183< / span >   < / div >
< div class = "line" > < a name = "l01184" > < / a > < span class = "lineno" > 1184< / span >   < / div >
< div class = "line" > < a name = "l01185" > < / a > < span class = "lineno" > 1185< / span >   < / div >
< div class = "line" > < a name = "l01186" > < / a > < span class = "lineno" > 1186< / span >   < / div >
< div class = "line" > < a name = "l01187" > < / a > < span class = "lineno" > 1187< / span >   < span class = "comment" > /*****************************************< / span > < / div >
< div class = "line" > < a name = "l01188" > < / a > < span class = "lineno" > 1188< / span >   < span class = "comment" > * IndexIVFPQR implementation< / span > < / div >
< div class = "line" > < a name = "l01189" > < / a > < span class = "lineno" > 1189< / span >   < span class = "comment" > ******************************************/< / span > < / div >
< div class = "line" > < a name = "l01190" > < / a > < span class = "lineno" > 1190< / span >   < / div >
< div class = "line" > < a name = "l01191" > < / a > < span class = "lineno" > 1191< / span >   IndexIVFPQR::IndexIVFPQR (< / div >
< div class = "line" > < a name = "l01192" > < / a > < span class = "lineno" > 1192< / span >   < a class = "code" href = "structfaiss_1_1Index.html" > Index< / a > * quantizer, < span class = "keywordtype" > size_t< / span > d, < span class = "keywordtype" > size_t< / span > nlist,< / div >
< div class = "line" > < a name = "l01193" > < / a > < span class = "lineno" > 1193< / span >   < span class = "keywordtype" > size_t< / span > M, < span class = "keywordtype" > size_t< / span > nbits_per_idx,< / div >
< div class = "line" > < a name = "l01194" > < / a > < span class = "lineno" > 1194< / span >   < span class = "keywordtype" > size_t< / span > M_refine, < span class = "keywordtype" > size_t< / span > nbits_per_idx_refine):< / div >
< div class = "line" > < a name = "l01195" > < / a > < span class = "lineno" > 1195< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html" > IndexIVFPQ< / a > (quantizer, d, nlist, M, nbits_per_idx),< / div >
< div class = "line" > < a name = "l01196" > < / a > < span class = "lineno" > 1196< / span >   refine_pq (d, M_refine, nbits_per_idx_refine),< / div >
< div class = "line" > < a name = "l01197" > < / a > < span class = "lineno" > 1197< / span >   k_factor (4)< / div >
< div class = "line" > < a name = "l01198" > < / a > < span class = "lineno" > 1198< / span >   {< / div >
< div class = "line" > < a name = "l01199" > < / a > < span class = "lineno" > 1199< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#afd13b471df293ae5a6e895704c69a4c3" > by_residual< / a > = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l01200" > < / a > < span class = "lineno" > 1200< / span >   set_typename();< / div >
< div class = "line" > < a name = "l01201" > < / a > < span class = "lineno" > 1201< / span >   }< / div >
< div class = "line" > < a name = "l01202" > < / a > < span class = "lineno" > 1202< / span >   < / div >
< div class = "line" > < a name = "l01203" > < / a > < span class = "lineno" > 1203< / span >   IndexIVFPQR::IndexIVFPQR ():< / div >
< div class = "line" > < a name = "l01204" > < / a > < span class = "lineno" > 1204< / span >   k_factor (1)< / div >
< div class = "line" > < a name = "l01205" > < / a > < span class = "lineno" > 1205< / span >   {< / div >
< div class = "line" > < a name = "l01206" > < / a > < span class = "lineno" > 1206< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#afd13b471df293ae5a6e895704c69a4c3" > by_residual< / a > = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l01207" > < / a > < span class = "lineno" > 1207< / span >   }< / div >
2017-02-23 06:26:44 +08:00
< div class = "line" > < a name = "l01208" > < / a > < span class = "lineno" > 1208< / span >   < / div >
2017-03-21 01:33:21 +08:00
< div class = "line" > < a name = "l01209" > < / a > < span class = "lineno" > 1209< / span >   < / div >
2017-04-06 19:33:41 +08:00
< div class = "line" > < a name = "l01210" > < / a > < span class = "lineno" > 1210< / span >   < span class = "keywordtype" > void< / span > IndexIVFPQR::set_typename()< / div >
2017-03-21 01:33:21 +08:00
< div class = "line" > < a name = "l01211" > < / a > < span class = "lineno" > 1211< / span >   {< / div >
2017-04-06 19:33:41 +08:00
< div class = "line" > < a name = "l01212" > < / a > < span class = "lineno" > 1212< / span >   std::stringstream s;< / div >
< div class = "line" > < a name = "l01213" > < / a > < span class = "lineno" > 1213< / span >   s < < < span class = "stringliteral" > " IvfPQR_" < / span > < < < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#a83600e328893ce5f41fe459f5a3acf41" > M< / a > < < < span class = "stringliteral" > " x" < / span > < < < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#ac920fea11f02e8407d12cc99a09f5ea5" > nbits< / a > < / div >
< div class = "line" > < a name = "l01214" > < / a > < span class = "lineno" > 1214< / span >   < < < span class = "stringliteral" > " +" < / span > < < < a class = "code" href = "structfaiss_1_1IndexIVFPQR.html#a4a80540e7cdfb3e43712ffb93e083a7c" > refine_pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#a83600e328893ce5f41fe459f5a3acf41" > M< / a > < < < span class = "stringliteral" > " x" < / span > < < < a class = "code" href = "structfaiss_1_1IndexIVFPQR.html#a4a80540e7cdfb3e43712ffb93e083a7c" > refine_pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#ac920fea11f02e8407d12cc99a09f5ea5" > nbits< / a > < / div >
< div class = "line" > < a name = "l01215" > < / a > < span class = "lineno" > 1215< / span >   < < < span class = "stringliteral" > " [" < / span > < < nlist < < < span class = "stringliteral" > " :" < / span > < < quantizer-> index_typename < < < span class = "stringliteral" > " ]" < / span > ;< / div >
< div class = "line" > < a name = "l01216" > < / a > < span class = "lineno" > 1216< / span >   index_typename = s.str();< / div >
< div class = "line" > < a name = "l01217" > < / a > < span class = "lineno" > 1217< / span >   < / div >
< div class = "line" > < a name = "l01218" > < / a > < span class = "lineno" > 1218< / span >   }< / div >
< div class = "line" > < a name = "l01219" > < / a > < span class = "lineno" > 1219< / span >   < / div >
2017-03-21 01:33:21 +08:00
< div class = "line" > < a name = "l01220" > < / a > < span class = "lineno" > 1220< / span >   < / div >
2017-04-06 19:33:41 +08:00
< div class = "line" > < a name = "l01221" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexIVFPQR.html#ae0e979a014a9defe2254e9543657b075" > 1221< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexIVFPQR.html#ae0e979a014a9defe2254e9543657b075" > IndexIVFPQR::reset< / a > ()< / div >
< div class = "line" > < a name = "l01222" > < / a > < span class = "lineno" > 1222< / span >   {< / div >
< div class = "line" > < a name = "l01223" > < / a > < span class = "lineno" > 1223< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#acd807799dc56dcef0f221847a2af86f7" > IndexIVFPQ::reset< / a > ();< / div >
< div class = "line" > < a name = "l01224" > < / a > < span class = "lineno" > 1224< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQR.html#a588bd0b733c8db18eaeb7bc287afd16e" > refine_codes< / a > .clear();< / div >
< div class = "line" > < a name = "l01225" > < / a > < span class = "lineno" > 1225< / span >   }< / div >
2017-03-21 01:33:21 +08:00
< div class = "line" > < a name = "l01226" > < / a > < span class = "lineno" > 1226< / span >   < / div >
2017-04-06 19:33:41 +08:00
< div class = "line" > < a name = "l01227" > < / a > < span class = "lineno" > 1227< / span >   < / div >
2017-03-21 01:33:21 +08:00
< div class = "line" > < a name = "l01228" > < / a > < span class = "lineno" > 1228< / span >   < / div >
2017-02-23 06:26:44 +08:00
< div class = "line" > < a name = "l01229" > < / a > < span class = "lineno" > 1229< / span >   < / div >
2017-04-06 19:33:41 +08:00
< div class = "line" > < a name = "l01230" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexIVFPQR.html#a68ed7cae5bec89fcdcb6a1d2addbd5a8" > 1230< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexIVFPQR.html#a68ed7cae5bec89fcdcb6a1d2addbd5a8" > IndexIVFPQR::train_residual< / a > (< a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > n, < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > *x)< / div >
< div class = "line" > < a name = "l01231" > < / a > < span class = "lineno" > 1231< / span >   {< / div >
< div class = "line" > < a name = "l01232" > < / a > < span class = "lineno" > 1232< / span >   < / div >
< div class = "line" > < a name = "l01233" > < / a > < span class = "lineno" > 1233< / span >   < span class = "keywordtype" > float< / span > * residual_2 = < span class = "keyword" > new< / span > < span class = "keywordtype" > float< / span > [n * < a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > ];< / div >
< div class = "line" > < a name = "l01234" > < / a > < span class = "lineno" > 1234< / span >   < / div >
< div class = "line" > < a name = "l01235" > < / a > < span class = "lineno" > 1235< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a4e06f04853dcb424dc393de5f641e917" > train_residual_o< / a > (n, x, residual_2);< / div >
2017-02-23 06:26:44 +08:00
< div class = "line" > < a name = "l01236" > < / a > < span class = "lineno" > 1236< / span >   < / div >
2017-04-06 19:33:41 +08:00
< div class = "line" > < a name = "l01237" > < / a > < span class = "lineno" > 1237< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "structfaiss_1_1Index.html#a5590d847c5c2b958affd2a05e58a6f23" > verbose< / a > )< / div >
< div class = "line" > < a name = "l01238" > < / a > < span class = "lineno" > 1238< / span >   printf (< span class = "stringliteral" > " training %zdx%zd 2nd level PQ quantizer on %ld %dD-vectors\n" < / span > ,< / div >
< div class = "line" > < a name = "l01239" > < / a > < span class = "lineno" > 1239< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQR.html#a4a80540e7cdfb3e43712ffb93e083a7c" > refine_pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#a83600e328893ce5f41fe459f5a3acf41" > M< / a > , < a class = "code" href = "structfaiss_1_1IndexIVFPQR.html#a4a80540e7cdfb3e43712ffb93e083a7c" > refine_pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#a0feee45e4151547b7a0444c14bad398f" > ksub< / a > , n, d);< / div >
2017-02-23 06:26:44 +08:00
< div class = "line" > < a name = "l01240" > < / a > < span class = "lineno" > 1240< / span >   < / div >
2017-04-06 19:33:41 +08:00
< div class = "line" > < a name = "l01241" > < / a > < span class = "lineno" > 1241< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQR.html#a4a80540e7cdfb3e43712ffb93e083a7c" > refine_pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#af265acf5aa1bcda60898002287e6a3d6" > cp< / a > .< a class = "code" href = "structfaiss_1_1ClusteringParameters.html#a993e0a035248faad6e292a5ef9af1953" > max_points_per_centroid< / a > = 1000;< / div >
< div class = "line" > < a name = "l01242" > < / a > < span class = "lineno" > 1242< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQR.html#a4a80540e7cdfb3e43712ffb93e083a7c" > refine_pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#af265acf5aa1bcda60898002287e6a3d6" > cp< / a > .verbose = < a class = "code" href = "structfaiss_1_1Index.html#a5590d847c5c2b958affd2a05e58a6f23" > verbose< / a > ;< / div >
< div class = "line" > < a name = "l01243" > < / a > < span class = "lineno" > 1243< / span >   < / div >
< div class = "line" > < a name = "l01244" > < / a > < span class = "lineno" > 1244< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQR.html#a4a80540e7cdfb3e43712ffb93e083a7c" > refine_pq< / a > .train (n, residual_2);< / div >
< div class = "line" > < a name = "l01245" > < / a > < span class = "lineno" > 1245< / span >   < span class = "keyword" > delete< / span > [] residual_2;< / div >
< div class = "line" > < a name = "l01246" > < / a > < span class = "lineno" > 1246< / span >   < / div >
< div class = "line" > < a name = "l01247" > < / a > < span class = "lineno" > 1247< / span >   }< / div >
< div class = "line" > < a name = "l01248" > < / a > < span class = "lineno" > 1248< / span >   < / div >
2017-03-21 01:33:21 +08:00
< div class = "line" > < a name = "l01249" > < / a > < span class = "lineno" > 1249< / span >   < / div >
2017-04-06 19:33:41 +08:00
< div class = "line" > < a name = "l01250" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexIVFPQR.html#a4b6154a5194d574d037ba78c137a2fa5" > 1250< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexIVFPQR.html#a4b6154a5194d574d037ba78c137a2fa5" > IndexIVFPQR::add_with_ids< / a > (< a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > n, < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > *x, < span class = "keyword" > const< / span > < span class = "keywordtype" > long< / span > *xids) {< / div >
< div class = "line" > < a name = "l01251" > < / a > < span class = "lineno" > 1251< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQR.html#a186b746f22b65ddf416b1e821b0866ec" > add_core< / a > (n, x, xids, < span class = "keyword" > nullptr< / span > );< / div >
< div class = "line" > < a name = "l01252" > < / a > < span class = "lineno" > 1252< / span >   }< / div >
< div class = "line" > < a name = "l01253" > < / a > < span class = "lineno" > 1253< / span >   < / div >
< div class = "line" > < a name = "l01254" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexIVFPQR.html#a186b746f22b65ddf416b1e821b0866ec" > 1254< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexIVFPQR.html#a186b746f22b65ddf416b1e821b0866ec" > IndexIVFPQR::add_core< / a > (< a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > n, < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > *x, < span class = "keyword" > const< / span > < span class = "keywordtype" > long< / span > *xids,< / div >
< div class = "line" > < a name = "l01255" > < / a > < span class = "lineno" > 1255< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > long< / span > *precomputed_idx) {< / div >
< div class = "line" > < a name = "l01256" > < / a > < span class = "lineno" > 1256< / span >   < / div >
< div class = "line" > < a name = "l01257" > < / a > < span class = "lineno" > 1257< / span >   < span class = "keywordtype" > float< / span > * residual_2 = < span class = "keyword" > new< / span > < span class = "keywordtype" > float< / span > [n * < a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > ];< / div >
< div class = "line" > < a name = "l01258" > < / a > < span class = "lineno" > 1258< / span >   < / div >
< div class = "line" > < a name = "l01259" > < / a > < span class = "lineno" > 1259< / span >   < a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > n0 = < a class = "code" href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > ntotal< / a > ;< / div >
< div class = "line" > < a name = "l01260" > < / a > < span class = "lineno" > 1260< / span >   < / div >
< div class = "line" > < a name = "l01261" > < / a > < span class = "lineno" > 1261< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#ac0cb8421b9885d691696d2ff4f76894b" > add_core_o< / a > (n, x, xids, residual_2, precomputed_idx);< / div >
< div class = "line" > < a name = "l01262" > < / a > < span class = "lineno" > 1262< / span >   < / div >
< div class = "line" > < a name = "l01263" > < / a > < span class = "lineno" > 1263< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQR.html#a588bd0b733c8db18eaeb7bc287afd16e" > refine_codes< / a > .resize (< a class = "code" href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > ntotal< / a > * < a class = "code" href = "structfaiss_1_1IndexIVFPQR.html#a4a80540e7cdfb3e43712ffb93e083a7c" > refine_pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#aa61330eadb84772b71018b093773a5f9" > code_size< / a > );< / div >
2017-03-21 01:33:21 +08:00
< div class = "line" > < a name = "l01264" > < / a > < span class = "lineno" > 1264< / span >   < / div >
2017-04-06 19:33:41 +08:00
< div class = "line" > < a name = "l01265" > < / a > < span class = "lineno" > 1265< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQR.html#a4a80540e7cdfb3e43712ffb93e083a7c" > refine_pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#ae5a340ee5a4b1d35a565b167de2a2ef1" > compute_codes< / a > (< / div >
< div class = "line" > < a name = "l01266" > < / a > < span class = "lineno" > 1266< / span >   residual_2, & < a class = "code" href = "structfaiss_1_1IndexIVFPQR.html#a588bd0b733c8db18eaeb7bc287afd16e" > refine_codes< / a > [n0 * < a class = "code" href = "structfaiss_1_1IndexIVFPQR.html#a4a80540e7cdfb3e43712ffb93e083a7c" > refine_pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#aa61330eadb84772b71018b093773a5f9" > code_size< / a > ], n);< / div >
< div class = "line" > < a name = "l01267" > < / a > < span class = "lineno" > 1267< / span >   < / div >
< div class = "line" > < a name = "l01268" > < / a > < span class = "lineno" > 1268< / span >   < span class = "keyword" > delete< / span > [] residual_2;< / div >
< div class = "line" > < a name = "l01269" > < / a > < span class = "lineno" > 1269< / span >   < / div >
< div class = "line" > < a name = "l01270" > < / a > < span class = "lineno" > 1270< / span >   }< / div >
< div class = "line" > < a name = "l01271" > < / a > < span class = "lineno" > 1271< / span >   < / div >
< div class = "line" > < a name = "l01272" > < / a > < span class = "lineno" > 1272< / span >   < / div >
< div class = "line" > < a name = "l01273" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexIVFPQR.html#a3e982ee6f1a3a025148270701867d04f" > 1273< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexIVFPQR.html#a3e982ee6f1a3a025148270701867d04f" > IndexIVFPQR::search< / a > (< / div >
< div class = "line" > < a name = "l01274" > < / a > < span class = "lineno" > 1274< / span >   < a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > n, < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > *x, < a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > k,< / div >
< div class = "line" > < a name = "l01275" > < / a > < span class = "lineno" > 1275< / span >   < span class = "keywordtype" > float< / span > *distances, < a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > *labels)< span class = "keyword" > const< / span > < / div >
< div class = "line" > < a name = "l01276" > < / a > < span class = "lineno" > 1276< / span >   < span class = "keyword" > < / span > {< / div >
< div class = "line" > < a name = "l01277" > < / a > < span class = "lineno" > 1277< / span >   FAISS_ASSERT (< a class = "code" href = "structfaiss_1_1Index.html#a6e92732617c4dbe364e7678dd8773a7f" > is_trained< / a > );< / div >
< div class = "line" > < a name = "l01278" > < / a > < span class = "lineno" > 1278< / span >   < span class = "keywordtype" > long< / span > * idx = < span class = "keyword" > new< / span > < span class = "keywordtype" > long< / span > [n * < a class = "code" href = "structfaiss_1_1IndexIVF.html#affed235eadf27a13d753ee4d33a1dc58" > nprobe< / a > ];< / div >
< div class = "line" > < a name = "l01279" > < / a > < span class = "lineno" > 1279< / span >   < span class = "keywordtype" > float< / span > * L1_dis = < span class = "keyword" > new< / span > < span class = "keywordtype" > float< / span > [n * < a class = "code" href = "structfaiss_1_1IndexIVF.html#affed235eadf27a13d753ee4d33a1dc58" > nprobe< / a > ];< / div >
< div class = "line" > < a name = "l01280" > < / a > < span class = "lineno" > 1280< / span >   uint64_t t0;< / div >
< div class = "line" > < a name = "l01281" > < / a > < span class = "lineno" > 1281< / span >   TIC;< / div >
< div class = "line" > < a name = "l01282" > < / a > < span class = "lineno" > 1282< / span >   quantizer-> search (n, x, < a class = "code" href = "structfaiss_1_1IndexIVF.html#affed235eadf27a13d753ee4d33a1dc58" > nprobe< / a > , L1_dis, idx);< / div >
< div class = "line" > < a name = "l01283" > < / a > < span class = "lineno" > 1283< / span >   indexIVFPQ_stats.assign_cycles += TOC;< / div >
< div class = "line" > < a name = "l01284" > < / a > < span class = "lineno" > 1284< / span >   < / div >
< div class = "line" > < a name = "l01285" > < / a > < span class = "lineno" > 1285< / span >   TIC;< / div >
< div class = "line" > < a name = "l01286" > < / a > < span class = "lineno" > 1286< / span >   < span class = "keywordtype" > size_t< / span > k_coarse = long(k * < a class = "code" href = "structfaiss_1_1IndexIVFPQR.html#a0b02a4151ceacc070352f8b15cc0ee0b" > k_factor< / a > );< / div >
< div class = "line" > < a name = "l01287" > < / a > < span class = "lineno" > 1287< / span >   < a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > *coarse_labels = < span class = "keyword" > new< / span > < a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > [k_coarse * n];< / div >
< div class = "line" > < a name = "l01288" > < / a > < span class = "lineno" > 1288< / span >   { < span class = "comment" > // query with quantizer levels 1 and 2.< / span > < / div >
< div class = "line" > < a name = "l01289" > < / a > < span class = "lineno" > 1289< / span >   < span class = "keywordtype" > float< / span > *coarse_distances = < span class = "keyword" > new< / span > < span class = "keywordtype" > float< / span > [k_coarse * n];< / div >
< div class = "line" > < a name = "l01290" > < / a > < span class = "lineno" > 1290< / span >   < / div >
< div class = "line" > < a name = "l01291" > < / a > < span class = "lineno" > 1291< / span >   < a class = "code" href = "structfaiss_1_1HeapArray.html" > faiss::float_maxheap_array_t< / a > res_coarse = {< / div >
< div class = "line" > < a name = "l01292" > < / a > < span class = "lineno" > 1292< / span >   size_t(n), k_coarse, coarse_labels, coarse_distances};< / div >
< div class = "line" > < a name = "l01293" > < / a > < span class = "lineno" > 1293< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#ad5ae3ae94b4776291f6abee5110c7c0c" > search_knn_with_key< / a > (n, x, idx, L1_dis, & res_coarse, < span class = "keyword" > true< / span > );< / div >
< div class = "line" > < a name = "l01294" > < / a > < span class = "lineno" > 1294< / span >   < span class = "keyword" > delete< / span > [] coarse_distances;< / div >
< div class = "line" > < a name = "l01295" > < / a > < span class = "lineno" > 1295< / span >   }< / div >
< div class = "line" > < a name = "l01296" > < / a > < span class = "lineno" > 1296< / span >   < span class = "keyword" > delete< / span > [] L1_dis;< / div >
< div class = "line" > < a name = "l01297" > < / a > < span class = "lineno" > 1297< / span >   indexIVFPQ_stats.search_cycles += TOC;< / div >
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< div class = "line" > < a name = "l01298" > < / a > < span class = "lineno" > 1298< / span >   < / div >
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< div class = "line" > < a name = "l01299" > < / a > < span class = "lineno" > 1299< / span >   TIC;< / div >
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< div class = "line" > < a name = "l01300" > < / a > < span class = "lineno" > 1300< / span >   < / div >
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< div class = "line" > < a name = "l01301" > < / a > < span class = "lineno" > 1301< / span >   < span class = "comment" > // 3rd level refinement< / span > < / div >
< div class = "line" > < a name = "l01302" > < / a > < span class = "lineno" > 1302< / span >   < span class = "keywordtype" > size_t< / span > n_refine = 0;< / div >
< div class = "line" > < a name = "l01303" > < / a > < span class = "lineno" > 1303< / span >   < span class = "preprocessor" > #pragma omp parallel reduction(+ : n_refine)< / span > < / div >
< div class = "line" > < a name = "l01304" > < / a > < span class = "lineno" > 1304< / span >   < span class = "preprocessor" > < / span > {< / div >
< div class = "line" > < a name = "l01305" > < / a > < span class = "lineno" > 1305< / span >   < span class = "comment" > // tmp buffers< / span > < / div >
< div class = "line" > < a name = "l01306" > < / a > < span class = "lineno" > 1306< / span >   < span class = "keywordtype" > float< / span > *residual_1 = < span class = "keyword" > new< / span > < span class = "keywordtype" > float< / span > [2 * < a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > ];< / div >
< div class = "line" > < a name = "l01307" > < / a > < span class = "lineno" > 1307< / span >   < span class = "keywordtype" > float< / span > *residual_2 = residual_1 + < a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > ;< / div >
< div class = "line" > < a name = "l01308" > < / a > < span class = "lineno" > 1308< / span >   < span class = "preprocessor" > #pragma omp for< / span > < / div >
< div class = "line" > < a name = "l01309" > < / a > < span class = "lineno" > 1309< / span >   < span class = "preprocessor" > < / span > < span class = "keywordflow" > for< / span > (< a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > i = 0; i < n; i++) {< / div >
< div class = "line" > < a name = "l01310" > < / a > < span class = "lineno" > 1310< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > *xq = x + i * < a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > ;< / div >
< div class = "line" > < a name = "l01311" > < / a > < span class = "lineno" > 1311< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > long< / span > * shortlist = coarse_labels + k_coarse * i;< / div >
< div class = "line" > < a name = "l01312" > < / a > < span class = "lineno" > 1312< / span >   < span class = "keywordtype" > float< / span > * heap_sim = distances + k * i;< / div >
< div class = "line" > < a name = "l01313" > < / a > < span class = "lineno" > 1313< / span >   < span class = "keywordtype" > long< / span > * heap_ids = labels + k * i;< / div >
< div class = "line" > < a name = "l01314" > < / a > < span class = "lineno" > 1314< / span >   maxheap_heapify (k, heap_sim, heap_ids);< / div >
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< div class = "line" > < a name = "l01315" > < / a > < span class = "lineno" > 1315< / span >   < / div >
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< div class = "line" > < a name = "l01316" > < / a > < span class = "lineno" > 1316< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > j = 0; j < k_coarse; j++) {< / div >
< div class = "line" > < a name = "l01317" > < / a > < span class = "lineno" > 1317< / span >   < span class = "keywordtype" > long< / span > sl = shortlist[j];< / div >
< div class = "line" > < a name = "l01318" > < / a > < span class = "lineno" > 1318< / span >   < / div >
< div class = "line" > < a name = "l01319" > < / a > < span class = "lineno" > 1319< / span >   < span class = "keywordflow" > if< / span > (sl == -1) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l01320" > < / a > < span class = "lineno" > 1320< / span >   < / div >
< div class = "line" > < a name = "l01321" > < / a > < span class = "lineno" > 1321< / span >   < span class = "keywordtype" > int< / span > list_no = sl > > 32;< / div >
< div class = "line" > < a name = "l01322" > < / a > < span class = "lineno" > 1322< / span >   < span class = "keywordtype" > int< / span > ofs = sl & 0xffffffff;< / div >
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< div class = "line" > < a name = "l01323" > < / a > < span class = "lineno" > 1323< / span >   < / div >
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< div class = "line" > < a name = "l01324" > < / a > < span class = "lineno" > 1324< / span >   assert (list_no > = 0 & & list_no < nlist);< / div >
< div class = "line" > < a name = "l01325" > < / a > < span class = "lineno" > 1325< / span >   assert (ofs > = 0 & & ofs < < a class = "code" href = "structfaiss_1_1IndexIVF.html#af16d325f5bef22b2e5f90ceea796e80d" > ids< / a > [list_no].size());< / div >
< div class = "line" > < a name = "l01326" > < / a > < span class = "lineno" > 1326< / span >   < / div >
< div class = "line" > < a name = "l01327" > < / a > < span class = "lineno" > 1327< / span >   < span class = "comment" > // 1st level residual< / span > < / div >
< div class = "line" > < a name = "l01328" > < / a > < span class = "lineno" > 1328< / span >   quantizer-> compute_residual (xq, residual_1, list_no);< / div >
< div class = "line" > < a name = "l01329" > < / a > < span class = "lineno" > 1329< / span >   < / div >
< div class = "line" > < a name = "l01330" > < / a > < span class = "lineno" > 1330< / span >   < span class = "comment" > // 2nd level residual< / span > < / div >
< div class = "line" > < a name = "l01331" > < / a > < span class = "lineno" > 1331< / span >   < span class = "keyword" > const< / span > uint8_t * l2code = & codes[list_no][ofs * < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#aa61330eadb84772b71018b093773a5f9" > code_size< / a > ];< / div >
< div class = "line" > < a name = "l01332" > < / a > < span class = "lineno" > 1332< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#a7afbf9d96276f021981e99f064254208" > decode< / a > (l2code, residual_2);< / div >
< div class = "line" > < a name = "l01333" > < / a > < span class = "lineno" > 1333< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > l = 0; l < < a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > ; l++)< / div >
< div class = "line" > < a name = "l01334" > < / a > < span class = "lineno" > 1334< / span >   residual_2[l] = residual_1[l] - residual_2[l];< / div >
< div class = "line" > < a name = "l01335" > < / a > < span class = "lineno" > 1335< / span >   < / div >
< div class = "line" > < a name = "l01336" > < / a > < span class = "lineno" > 1336< / span >   < span class = "comment" > // 3rd level residual' s approximation< / span > < / div >
< div class = "line" > < a name = "l01337" > < / a > < span class = "lineno" > 1337< / span >   < a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > < span class = "keywordtype" > id< / span > = < a class = "code" href = "structfaiss_1_1IndexIVF.html#af16d325f5bef22b2e5f90ceea796e80d" > ids< / a > [list_no][ofs];< / div >
< div class = "line" > < a name = "l01338" > < / a > < span class = "lineno" > 1338< / span >   assert (0 < = < span class = "keywordtype" > id< / span > & & < span class = "keywordtype" > id< / span > < < a class = "code" href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > ntotal< / a > );< / div >
< div class = "line" > < a name = "l01339" > < / a > < span class = "lineno" > 1339< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQR.html#a4a80540e7cdfb3e43712ffb93e083a7c" > refine_pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#a7afbf9d96276f021981e99f064254208" > decode< / a > (& < a class = "code" href = "structfaiss_1_1IndexIVFPQR.html#a588bd0b733c8db18eaeb7bc287afd16e" > refine_codes< / a > [< span class = "keywordtype" > id< / span > * < a class = "code" href = "structfaiss_1_1IndexIVFPQR.html#a4a80540e7cdfb3e43712ffb93e083a7c" > refine_pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#aa61330eadb84772b71018b093773a5f9" > code_size< / a > ],< / div >
< div class = "line" > < a name = "l01340" > < / a > < span class = "lineno" > 1340< / span >   residual_1);< / div >
< div class = "line" > < a name = "l01341" > < / a > < span class = "lineno" > 1341< / span >   < / div >
< div class = "line" > < a name = "l01342" > < / a > < span class = "lineno" > 1342< / span >   < span class = "keywordtype" > float< / span > dis = < a class = "code" href = "namespacefaiss.html#a7466bd32de31640860393a701eaac5ad" > fvec_L2sqr< / a > (residual_1, residual_2, d);< / div >
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< div class = "line" > < a name = "l01343" > < / a > < span class = "lineno" > 1343< / span >   < / div >
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< div class = "line" > < a name = "l01344" > < / a > < span class = "lineno" > 1344< / span >   < span class = "keywordflow" > if< / span > (dis < heap_sim[0]) {< / div >
< div class = "line" > < a name = "l01345" > < / a > < span class = "lineno" > 1345< / span >   maxheap_pop (k, heap_sim, heap_ids);< / div >
< div class = "line" > < a name = "l01346" > < / a > < span class = "lineno" > 1346< / span >   maxheap_push (k, heap_sim, heap_ids, dis, < span class = "keywordtype" > id< / span > );< / div >
< div class = "line" > < a name = "l01347" > < / a > < span class = "lineno" > 1347< / span >   }< / div >
< div class = "line" > < a name = "l01348" > < / a > < span class = "lineno" > 1348< / span >   n_refine ++;< / div >
< div class = "line" > < a name = "l01349" > < / a > < span class = "lineno" > 1349< / span >   }< / div >
< div class = "line" > < a name = "l01350" > < / a > < span class = "lineno" > 1350< / span >   maxheap_reorder (k, heap_sim, heap_ids);< / div >
< div class = "line" > < a name = "l01351" > < / a > < span class = "lineno" > 1351< / span >   }< / div >
< div class = "line" > < a name = "l01352" > < / a > < span class = "lineno" > 1352< / span >   < span class = "keyword" > delete< / span > [] residual_1;< / div >
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< div class = "line" > < a name = "l01353" > < / a > < span class = "lineno" > 1353< / span >   }< / div >
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< div class = "line" > < a name = "l01354" > < / a > < span class = "lineno" > 1354< / span >   < span class = "keyword" > delete< / span > [] coarse_labels;< / div >
< div class = "line" > < a name = "l01355" > < / a > < span class = "lineno" > 1355< / span >   < span class = "keyword" > delete< / span > [] idx;< / div >
< div class = "line" > < a name = "l01356" > < / a > < span class = "lineno" > 1356< / span >   indexIVFPQ_stats.nrefine += n_refine;< / div >
< div class = "line" > < a name = "l01357" > < / a > < span class = "lineno" > 1357< / span >   indexIVFPQ_stats.refine_cycles += TOC;< / div >
< div class = "line" > < a name = "l01358" > < / a > < span class = "lineno" > 1358< / span >   }< / div >
< div class = "line" > < a name = "l01359" > < / a > < span class = "lineno" > 1359< / span >   < / div >
< div class = "line" > < a name = "l01360" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexIVFPQR.html#a0f0d8fc6b2c6aa2431c1730111a3b22a" > 1360< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexIVFPQR.html#a0f0d8fc6b2c6aa2431c1730111a3b22a" > IndexIVFPQR::reconstruct_n< / a > (< a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > i0, < a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > ni, < span class = "keywordtype" > float< / span > *recons)< span class = "keyword" > const< / span > < / div >
< div class = "line" > < a name = "l01361" > < / a > < span class = "lineno" > 1361< / span >   < span class = "keyword" > < / span > {< / div >
< div class = "line" > < a name = "l01362" > < / a > < span class = "lineno" > 1362< / span >   < span class = "keywordtype" > float< / span > *r3 = < span class = "keyword" > new< / span > < span class = "keywordtype" > float< / span > [< a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > ];< / div >
< div class = "line" > < a name = "l01363" > < / a > < span class = "lineno" > 1363< / span >   < / div >
< div class = "line" > < a name = "l01364" > < / a > < span class = "lineno" > 1364< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a1df10e9e5f4ff0dabf283f19ad94bbd4" > IndexIVFPQ::reconstruct_n< / a > (i0, ni, recons);< / div >
2017-03-21 01:33:21 +08:00
< div class = "line" > < a name = "l01365" > < / a > < span class = "lineno" > 1365< / span >   < / div >
2017-04-06 19:33:41 +08:00
< div class = "line" > < a name = "l01366" > < / a > < span class = "lineno" > 1366< / span >   < span class = "keywordflow" > for< / span > (< a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > i = i0; i < i0 + ni; i++) {< / div >
< div class = "line" > < a name = "l01367" > < / a > < span class = "lineno" > 1367< / span >   < span class = "keywordtype" > float< / span > *r = recons + i * < a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > ;< / div >
< div class = "line" > < a name = "l01368" > < / a > < span class = "lineno" > 1368< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQR.html#a4a80540e7cdfb3e43712ffb93e083a7c" > refine_pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#a7afbf9d96276f021981e99f064254208" > decode< / a > (& < a class = "code" href = "structfaiss_1_1IndexIVFPQR.html#a588bd0b733c8db18eaeb7bc287afd16e" > refine_codes< / a > [i * < a class = "code" href = "structfaiss_1_1IndexIVFPQR.html#a4a80540e7cdfb3e43712ffb93e083a7c" > refine_pq< / a > .< a class = "code" href = "structfaiss_1_1ProductQuantizer.html#aa61330eadb84772b71018b093773a5f9" > code_size< / a > ], r3);< / div >
< div class = "line" > < a name = "l01369" > < / a > < span class = "lineno" > 1369< / span >   < / div >
< div class = "line" > < a name = "l01370" > < / a > < span class = "lineno" > 1370< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > j = 0; j < < a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > ; j++)< / div >
< div class = "line" > < a name = "l01371" > < / a > < span class = "lineno" > 1371< / span >   r[j] += r3[j];< / div >
< div class = "line" > < a name = "l01372" > < / a > < span class = "lineno" > 1372< / span >   < / div >
< div class = "line" > < a name = "l01373" > < / a > < span class = "lineno" > 1373< / span >   }< / div >
< div class = "line" > < a name = "l01374" > < / a > < span class = "lineno" > 1374< / span >   < span class = "keyword" > delete< / span > [] r3;< / div >
< div class = "line" > < a name = "l01375" > < / a > < span class = "lineno" > 1375< / span >   }< / div >
< div class = "line" > < a name = "l01376" > < / a > < span class = "lineno" > 1376< / span >   < / div >
< div class = "line" > < a name = "l01377" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexIVFPQR.html#af6c7ee3bc917cc5d4ab04ff64269ee06" > 1377< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexIVFPQR.html#af6c7ee3bc917cc5d4ab04ff64269ee06" > IndexIVFPQR::merge_from_residuals< / a > (< a class = "code" href = "structfaiss_1_1IndexIVF.html" > IndexIVF< / a > & other_in)< / div >
< div class = "line" > < a name = "l01378" > < / a > < span class = "lineno" > 1378< / span >   {< / div >
< div class = "line" > < a name = "l01379" > < / a > < span class = "lineno" > 1379< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQR.html" > IndexIVFPQR< / a > & other = < span class = "keyword" > dynamic_cast< < / span > < a class = "code" href = "structfaiss_1_1IndexIVFPQR.html" > IndexIVFPQR< / a > & < span class = "keyword" > > < / span > (other_in);< / div >
< div class = "line" > < a name = "l01380" > < / a > < span class = "lineno" > 1380< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a6b8964e2da609a9261a8a35ae347ecb2" > IndexIVFPQ::merge_from_residuals< / a > (other);< / div >
< div class = "line" > < a name = "l01381" > < / a > < span class = "lineno" > 1381< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQR.html#a588bd0b733c8db18eaeb7bc287afd16e" > refine_codes< / a > .insert (< a class = "code" href = "structfaiss_1_1IndexIVFPQR.html#a588bd0b733c8db18eaeb7bc287afd16e" > refine_codes< / a > .end(),< / div >
< div class = "line" > < a name = "l01382" > < / a > < span class = "lineno" > 1382< / span >   other.< a class = "code" href = "structfaiss_1_1IndexIVFPQR.html#a588bd0b733c8db18eaeb7bc287afd16e" > refine_codes< / a > .begin(), other.< a class = "code" href = "structfaiss_1_1IndexIVFPQR.html#a588bd0b733c8db18eaeb7bc287afd16e" > refine_codes< / a > .end());< / div >
< div class = "line" > < a name = "l01383" > < / a > < span class = "lineno" > 1383< / span >   other.< a class = "code" href = "structfaiss_1_1IndexIVFPQR.html#a588bd0b733c8db18eaeb7bc287afd16e" > refine_codes< / a > .clear();< / div >
< div class = "line" > < a name = "l01384" > < / a > < span class = "lineno" > 1384< / span >   }< / div >
< div class = "line" > < a name = "l01385" > < / a > < span class = "lineno" > 1385< / span >   < / div >
< div class = "line" > < a name = "l01386" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexIVFPQR.html#acc5eeeeb8ac8d2581ef07947932d9f6c" > 1386< / a > < / span >   < span class = "keywordtype" > long< / span > < a class = "code" href = "structfaiss_1_1IndexIVFPQR.html#acc5eeeeb8ac8d2581ef07947932d9f6c" > IndexIVFPQR::remove_ids< / a > (< span class = "keyword" > const< / span > < a class = "code" href = "structfaiss_1_1IDSelector.html" > IDSelector< / a > & sel)< / div >
< div class = "line" > < a name = "l01387" > < / a > < span class = "lineno" > 1387< / span >   {< / div >
< div class = "line" > < a name = "l01388" > < / a > < span class = "lineno" > 1388< / span >   FAISS_ASSERT(!< span class = "stringliteral" > " not implemented" < / span > );< / div >
< div class = "line" > < a name = "l01389" > < / a > < span class = "lineno" > 1389< / span >   }< / div >
< div class = "line" > < a name = "l01390" > < / a > < span class = "lineno" > 1390< / span >   < / div >
< div class = "line" > < a name = "l01391" > < / a > < span class = "lineno" > 1391< / span >   < span class = "comment" > /*****************************************< / span > < / div >
< div class = "line" > < a name = "l01392" > < / a > < span class = "lineno" > 1392< / span >   < span class = "comment" > * IndexIVFPQCompact implementation< / span > < / div >
< div class = "line" > < a name = "l01393" > < / a > < span class = "lineno" > 1393< / span >   < span class = "comment" > ******************************************/< / span > < / div >
< div class = "line" > < a name = "l01394" > < / a > < span class = "lineno" > 1394< / span >   < / div >
< div class = "line" > < a name = "l01395" > < / a > < span class = "lineno" > 1395< / span >   IndexIVFPQCompact::IndexIVFPQCompact ()< / div >
< div class = "line" > < a name = "l01396" > < / a > < span class = "lineno" > 1396< / span >   {< / div >
< div class = "line" > < a name = "l01397" > < / a > < span class = "lineno" > 1397< / span >   alloc_type = < a class = "code" href = "structfaiss_1_1IndexIVFPQCompact.html#ab2698c5d65644a171c53ffe39e420b70a3d58d7b26146791f0fe34b35a9b0fd95" > Alloc_type_none< / a > ;< / div >
< div class = "line" > < a name = "l01398" > < / a > < span class = "lineno" > 1398< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQCompact.html#a146ccc5a05aed1d2e96df8c1d3f7663d" > limits< / a > = < span class = "keyword" > nullptr< / span > ;< / div >
< div class = "line" > < a name = "l01399" > < / a > < span class = "lineno" > 1399< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQCompact.html#a1fa62ed464c15768479c92646ed484c7" > compact_ids< / a > = < span class = "keyword" > nullptr< / span > ;< / div >
< div class = "line" > < a name = "l01400" > < / a > < span class = "lineno" > 1400< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQCompact.html#aaaf53cae0e47baf3fb1199ce4d789694" > compact_codes< / a > = < span class = "keyword" > nullptr< / span > ;< / div >
< div class = "line" > < a name = "l01401" > < / a > < span class = "lineno" > 1401< / span >   }< / div >
< div class = "line" > < a name = "l01402" > < / a > < span class = "lineno" > 1402< / span >   < / div >
< div class = "line" > < a name = "l01403" > < / a > < span class = "lineno" > 1403< / span >   < / div >
< div class = "line" > < a name = "l01404" > < / a > < span class = "lineno" > 1404< / span >   IndexIVFPQCompact::IndexIVFPQCompact (< span class = "keyword" > const< / span > IndexIVFPQ & other)< / div >
< div class = "line" > < a name = "l01405" > < / a > < span class = "lineno" > 1405< / span >   {< / div >
< div class = "line" > < a name = "l01406" > < / a > < span class = "lineno" > 1406< / span >   FAISS_ASSERT (other.ntotal < (1UL < < 31) ||< / div >
< div class = "line" > < a name = "l01407" > < / a > < span class = "lineno" > 1407< / span >   !< span class = "stringliteral" > " IndexIVFPQCompact cannot store more than 2G images" < / span > );< / div >
< div class = "line" > < a name = "l01408" > < / a > < span class = "lineno" > 1408< / span >   < / div >
< div class = "line" > < a name = "l01409" > < / a > < span class = "lineno" > 1409< / span >   < span class = "comment" > // here it would be more convenient to just use the< / span > < / div >
< div class = "line" > < a name = "l01410" > < / a > < span class = "lineno" > 1410< / span >   < span class = "comment" > // copy-constructor, but it would copy the lists as well: too much< / span > < / div >
< div class = "line" > < a name = "l01411" > < / a > < span class = "lineno" > 1411< / span >   < span class = "comment" > // overhead...< / span > < / div >
< div class = "line" > < a name = "l01412" > < / a > < span class = "lineno" > 1412< / span >   < / div >
< div class = "line" > < a name = "l01413" > < / a > < span class = "lineno" > 1413< / span >   < span class = "comment" > // copy fields from Index< / span > < / div >
< div class = "line" > < a name = "l01414" > < / a > < span class = "lineno" > 1414< / span >   d = other.d;< / div >
< div class = "line" > < a name = "l01415" > < / a > < span class = "lineno" > 1415< / span >   < a class = "code" href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > ntotal< / a > = other.ntotal;< / div >
< div class = "line" > < a name = "l01416" > < / a > < span class = "lineno" > 1416< / span >   < a class = "code" href = "structfaiss_1_1Index.html#a5590d847c5c2b958affd2a05e58a6f23" > verbose< / a > = other.verbose;< / div >
< div class = "line" > < a name = "l01417" > < / a > < span class = "lineno" > 1417< / span >   < a class = "code" href = "structfaiss_1_1Index.html#a6e92732617c4dbe364e7678dd8773a7f" > is_trained< / a > = other.is_trained;< / div >
< div class = "line" > < a name = "l01418" > < / a > < span class = "lineno" > 1418< / span >   < a class = "code" href = "structfaiss_1_1Index.html#a8e18f641854b2bde83ecff0a2f9a6f4e" > metric_type< / a > = other.metric_type;< / div >
< div class = "line" > < a name = "l01419" > < / a > < span class = "lineno" > 1419< / span >   < / div >
< div class = "line" > < a name = "l01420" > < / a > < span class = "lineno" > 1420< / span >   < span class = "comment" > // copy fields from IndexIVF (except ids)< / span > < / div >
< div class = "line" > < a name = "l01421" > < / a > < span class = "lineno" > 1421< / span >   nlist = other.nlist;< / div >
< div class = "line" > < a name = "l01422" > < / a > < span class = "lineno" > 1422< / span >   < a class = "code" href = "structfaiss_1_1IndexIVF.html#affed235eadf27a13d753ee4d33a1dc58" > nprobe< / a > = other.nprobe;< / div >
< div class = "line" > < a name = "l01423" > < / a > < span class = "lineno" > 1423< / span >   quantizer = other.quantizer;< / div >
< div class = "line" > < a name = "l01424" > < / a > < span class = "lineno" > 1424< / span >   < a class = "code" href = "structfaiss_1_1IndexIVF.html#a23ee7f75f8be4472a17778f2b33875de" > quantizer_trains_alone< / a > = other.quantizer_trains_alone;< / div >
< div class = "line" > < a name = "l01425" > < / a > < span class = "lineno" > 1425< / span >   < a class = "code" href = "structfaiss_1_1IndexIVF.html#aed2e9757ad5f3c234fd8ad60175a2a73" > own_fields< / a > = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l01426" > < / a > < span class = "lineno" > 1426< / span >   direct_map = other.direct_map;< / div >
2017-03-21 01:33:21 +08:00
< div class = "line" > < a name = "l01427" > < / a > < span class = "lineno" > 1427< / span >   < / div >
2017-04-06 19:33:41 +08:00
< div class = "line" > < a name = "l01428" > < / a > < span class = "lineno" > 1428< / span >   < span class = "comment" > // copy fields from IndexIVFPQ (except codes)< / span > < / div >
< div class = "line" > < a name = "l01429" > < / a > < span class = "lineno" > 1429< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#afd13b471df293ae5a6e895704c69a4c3" > by_residual< / a > = other.by_residual;< / div >
< div class = "line" > < a name = "l01430" > < / a > < span class = "lineno" > 1430< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a1c66ff073c18a1edbe8444c24d870583" > use_precomputed_table< / a > = other.use_precomputed_table;< / div >
< div class = "line" > < a name = "l01431" > < / a > < span class = "lineno" > 1431< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a9b310195d610c3e326471b3758206b59" > precomputed_table< / a > = other.precomputed_table;< / div >
< div class = "line" > < a name = "l01432" > < / a > < span class = "lineno" > 1432< / span >   code_size = other.code_size;< / div >
< div class = "line" > < a name = "l01433" > < / a > < span class = "lineno" > 1433< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > pq< / a > = other.pq;< / div >
< div class = "line" > < a name = "l01434" > < / a > < span class = "lineno" > 1434< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a9d5373633df7a9bec4de69400b9adeed" > do_polysemous_training< / a > = other.do_polysemous_training;< / div >
< div class = "line" > < a name = "l01435" > < / a > < span class = "lineno" > 1435< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a2b14cbb5acb3fc28a4df8fde3f5567cd" > polysemous_training< / a > = < span class = "keyword" > nullptr< / span > ;< / div >
< div class = "line" > < a name = "l01436" > < / a > < span class = "lineno" > 1436< / span >   < / div >
< div class = "line" > < a name = "l01437" > < / a > < span class = "lineno" > 1437< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a7430fc4fa030c96497abced3b68358d4" > scan_table_threshold< / a > = other.scan_table_threshold;< / div >
< div class = "line" > < a name = "l01438" > < / a > < span class = "lineno" > 1438< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a77501995b3671e377102d2db1a93ade4" > max_codes< / a > = other.max_codes;< / div >
< div class = "line" > < a name = "l01439" > < / a > < span class = "lineno" > 1439< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a3093a0a3e128eafce6e0583b75e9662e" > polysemous_ht< / a > = other.polysemous_ht;< / div >
< div class = "line" > < a name = "l01440" > < / a > < span class = "lineno" > 1440< / span >   < / div >
< div class = "line" > < a name = "l01441" > < / a > < span class = "lineno" > 1441< / span >   < span class = "comment" > //allocate< / span > < / div >
< div class = "line" > < a name = "l01442" > < / a > < span class = "lineno" > 1442< / span >   alloc_type = < a class = "code" href = "structfaiss_1_1IndexIVFPQCompact.html#ab2698c5d65644a171c53ffe39e420b70acf2d6ba8878a2778383adc32593ba8e6" > Alloc_type_new< / a > ;< / div >
< div class = "line" > < a name = "l01443" > < / a > < span class = "lineno" > 1443< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQCompact.html#a146ccc5a05aed1d2e96df8c1d3f7663d" > limits< / a > = < span class = "keyword" > new< / span > uint32_t [nlist + 1];< / div >
< div class = "line" > < a name = "l01444" > < / a > < span class = "lineno" > 1444< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQCompact.html#a1fa62ed464c15768479c92646ed484c7" > compact_ids< / a > = < span class = "keyword" > new< / span > uint32_t [< a class = "code" href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > ntotal< / a > ];< / div >
< div class = "line" > < a name = "l01445" > < / a > < span class = "lineno" > 1445< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQCompact.html#aaaf53cae0e47baf3fb1199ce4d789694" > compact_codes< / a > = < span class = "keyword" > new< / span > uint8_t [< a class = "code" href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > ntotal< / a > * < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a31c6fb2faa4dadea4c0594338be7be90" > code_size< / a > ];< / div >
2017-03-21 01:33:21 +08:00
< div class = "line" > < a name = "l01446" > < / a > < span class = "lineno" > 1446< / span >   < / div >
2017-04-06 19:33:41 +08:00
< div class = "line" > < a name = "l01447" > < / a > < span class = "lineno" > 1447< / span >   < / div >
< div class = "line" > < a name = "l01448" > < / a > < span class = "lineno" > 1448< / span >   < span class = "comment" > // copy content from other< / span > < / div >
< div class = "line" > < a name = "l01449" > < / a > < span class = "lineno" > 1449< / span >   < span class = "keywordtype" > size_t< / span > ofs = 0;< / div >
< div class = "line" > < a name = "l01450" > < / a > < span class = "lineno" > 1450< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > size_t< / span > i = 0; i < < a class = "code" href = "structfaiss_1_1IndexIVF.html#ab38fde4c923abefc4185eb7450b5b95b" > nlist< / a > ; i++) {< / div >
< div class = "line" > < a name = "l01451" > < / a > < span class = "lineno" > 1451< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQCompact.html#a146ccc5a05aed1d2e96df8c1d3f7663d" > limits< / a > [i] = ofs;< / div >
< div class = "line" > < a name = "l01452" > < / a > < span class = "lineno" > 1452< / span >   < span class = "keyword" > const< / span > std::vector< long> & other_ids = other.ids[i];< / div >
< div class = "line" > < a name = "l01453" > < / a > < span class = "lineno" > 1453< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > size_t< / span > j = 0; j < other_ids.size(); j++) {< / div >
< div class = "line" > < a name = "l01454" > < / a > < span class = "lineno" > 1454< / span >   < span class = "keywordtype" > long< / span > < span class = "keywordtype" > id< / span > = other_ids[j];< / div >
< div class = "line" > < a name = "l01455" > < / a > < span class = "lineno" > 1455< / span >   FAISS_ASSERT (< span class = "keywordtype" > id< / span > < (1UL < < 31) ||< / div >
< div class = "line" > < a name = "l01456" > < / a > < span class = "lineno" > 1456< / span >   !< span class = "stringliteral" > " IndexIVFPQCompact cannot store ids > 2G" < / span > );< / div >
< div class = "line" > < a name = "l01457" > < / a > < span class = "lineno" > 1457< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQCompact.html#a1fa62ed464c15768479c92646ed484c7" > compact_ids< / a > [ofs + j] = id;< / div >
< div class = "line" > < a name = "l01458" > < / a > < span class = "lineno" > 1458< / span >   }< / div >
< div class = "line" > < a name = "l01459" > < / a > < span class = "lineno" > 1459< / span >   memcpy (< a class = "code" href = "structfaiss_1_1IndexIVFPQCompact.html#aaaf53cae0e47baf3fb1199ce4d789694" > compact_codes< / a > + ofs * code_size,< / div >
< div class = "line" > < a name = "l01460" > < / a > < span class = "lineno" > 1460< / span >   other.codes[i].data(),< / div >
< div class = "line" > < a name = "l01461" > < / a > < span class = "lineno" > 1461< / span >   other.codes[i].size());< / div >
< div class = "line" > < a name = "l01462" > < / a > < span class = "lineno" > 1462< / span >   ofs += other_ids.size();< / div >
< div class = "line" > < a name = "l01463" > < / a > < span class = "lineno" > 1463< / span >   }< / div >
< div class = "line" > < a name = "l01464" > < / a > < span class = "lineno" > 1464< / span >   FAISS_ASSERT (ofs == < a class = "code" href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > ntotal< / a > );< / div >
< div class = "line" > < a name = "l01465" > < / a > < span class = "lineno" > 1465< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQCompact.html#a146ccc5a05aed1d2e96df8c1d3f7663d" > limits< / a > [< a class = "code" href = "structfaiss_1_1IndexIVF.html#ab38fde4c923abefc4185eb7450b5b95b" > nlist< / a > ] = ofs;< / div >
< div class = "line" > < a name = "l01466" > < / a > < span class = "lineno" > 1466< / span >   < / div >
< div class = "line" > < a name = "l01467" > < / a > < span class = "lineno" > 1467< / span >   }< / div >
< div class = "line" > < a name = "l01468" > < / a > < span class = "lineno" > 1468< / span >   < / div >
< div class = "line" > < a name = "l01469" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexIVFPQCompact.html#ade7b46bbbcaf244ad680104380afb1b8" > 1469< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexIVFPQCompact.html#ade7b46bbbcaf244ad680104380afb1b8" > IndexIVFPQCompact::add< / a > (< a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > , < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > *) {< / div >
< div class = "line" > < a name = "l01470" > < / a > < span class = "lineno" > 1470< / span >   FAISS_ASSERT (!< span class = "stringliteral" > " cannot add to an IndexIVFPQCompact" < / span > );< / div >
< div class = "line" > < a name = "l01471" > < / a > < span class = "lineno" > 1471< / span >   }< / div >
2017-02-23 06:26:44 +08:00
< div class = "line" > < a name = "l01472" > < / a > < span class = "lineno" > 1472< / span >   < / div >
2017-04-06 19:33:41 +08:00
< div class = "line" > < a name = "l01473" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexIVFPQCompact.html#a8f5eccfb4d5e4098ff6c00acb3bc40a1" > 1473< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexIVFPQCompact.html#a8f5eccfb4d5e4098ff6c00acb3bc40a1" > IndexIVFPQCompact::reset< / a > () {< / div >
< div class = "line" > < a name = "l01474" > < / a > < span class = "lineno" > 1474< / span >   FAISS_ASSERT (!< span class = "stringliteral" > " cannot reset an IndexIVFPQCompact" < / span > );< / div >
2017-03-21 01:33:21 +08:00
< div class = "line" > < a name = "l01475" > < / a > < span class = "lineno" > 1475< / span >   }< / div >
< div class = "line" > < a name = "l01476" > < / a > < span class = "lineno" > 1476< / span >   < / div >
2017-04-06 19:33:41 +08:00
< div class = "line" > < a name = "l01477" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexIVFPQCompact.html#a0ef8132fae22a50616fe1201c8b20588" > 1477< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexIVFPQCompact.html#a0ef8132fae22a50616fe1201c8b20588" > IndexIVFPQCompact::train< / a > (< a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > , < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > *) {< / div >
< div class = "line" > < a name = "l01478" > < / a > < span class = "lineno" > 1478< / span >   FAISS_ASSERT (!< span class = "stringliteral" > " cannot train an IndexIVFPQCompact" < / span > );< / div >
< div class = "line" > < a name = "l01479" > < / a > < span class = "lineno" > 1479< / span >   }< / div >
< div class = "line" > < a name = "l01480" > < / a > < span class = "lineno" > 1480< / span >   < / div >
< div class = "line" > < a name = "l01481" > < / a > < span class = "lineno" > 1481< / span >   < / div >
< div class = "line" > < a name = "l01482" > < / a > < span class = "lineno" > 1482< / span >   < / div >
< div class = "line" > < a name = "l01483" > < / a > < span class = "lineno" > 1483< / span >   < / div >
< div class = "line" > < a name = "l01484" > < / a > < span class = "lineno" > 1484< / span >   IndexIVFPQCompact::~IndexIVFPQCompact ()< / div >
< div class = "line" > < a name = "l01485" > < / a > < span class = "lineno" > 1485< / span >   {< / div >
< div class = "line" > < a name = "l01486" > < / a > < span class = "lineno" > 1486< / span >   < span class = "keywordflow" > if< / span > (alloc_type == < a class = "code" href = "structfaiss_1_1IndexIVFPQCompact.html#ab2698c5d65644a171c53ffe39e420b70acf2d6ba8878a2778383adc32593ba8e6" > Alloc_type_new< / a > ) {< / div >
< div class = "line" > < a name = "l01487" > < / a > < span class = "lineno" > 1487< / span >   < span class = "keyword" > delete< / span > [] < a class = "code" href = "structfaiss_1_1IndexIVFPQCompact.html#a146ccc5a05aed1d2e96df8c1d3f7663d" > limits< / a > ;< / div >
< div class = "line" > < a name = "l01488" > < / a > < span class = "lineno" > 1488< / span >   < span class = "keyword" > delete< / span > [] < a class = "code" href = "structfaiss_1_1IndexIVFPQCompact.html#aaaf53cae0e47baf3fb1199ce4d789694" > compact_codes< / a > ;< / div >
< div class = "line" > < a name = "l01489" > < / a > < span class = "lineno" > 1489< / span >   < span class = "keyword" > delete< / span > [] < a class = "code" href = "structfaiss_1_1IndexIVFPQCompact.html#a1fa62ed464c15768479c92646ed484c7" > compact_ids< / a > ;< / div >
< div class = "line" > < a name = "l01490" > < / a > < span class = "lineno" > 1490< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (alloc_type == < a class = "code" href = "structfaiss_1_1IndexIVFPQCompact.html#ab2698c5d65644a171c53ffe39e420b70a38c1b1ed9ebdbd4b0047be13080094bb" > Alloc_type_mmap< / a > ) {< / div >
< div class = "line" > < a name = "l01491" > < / a > < span class = "lineno" > 1491< / span >   munmap (mmap_buffer, mmap_length);< / div >
< div class = "line" > < a name = "l01492" > < / a > < span class = "lineno" > 1492< / span >   < / div >
< div class = "line" > < a name = "l01493" > < / a > < span class = "lineno" > 1493< / span >   }< / div >
< div class = "line" > < a name = "l01494" > < / a > < span class = "lineno" > 1494< / span >   < / div >
< div class = "line" > < a name = "l01495" > < / a > < span class = "lineno" > 1495< / span >   }< / div >
< div class = "line" > < a name = "l01496" > < / a > < span class = "lineno" > 1496< / span >   < / div >
< div class = "line" > < a name = "l01497" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexIVFPQCompact.html#a583dd638a00cb9246ac7b54ee6d65f95" > 1497< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexIVFPQCompact.html#a583dd638a00cb9246ac7b54ee6d65f95" > IndexIVFPQCompact::search_knn_with_key< / a > (< / div >
< div class = "line" > < a name = "l01498" > < / a > < span class = "lineno" > 1498< / span >   < span class = "keywordtype" > size_t< / span > nx,< / div >
< div class = "line" > < a name = "l01499" > < / a > < span class = "lineno" > 1499< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > * qx,< / div >
< div class = "line" > < a name = "l01500" > < / a > < span class = "lineno" > 1500< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > long< / span > * keys,< / div >
< div class = "line" > < a name = "l01501" > < / a > < span class = "lineno" > 1501< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > * coarse_dis,< / div >
< div class = "line" > < a name = "l01502" > < / a > < span class = "lineno" > 1502< / span >   < a class = "code" href = "structfaiss_1_1HeapArray.html" > float_maxheap_array_t< / a > * res,< / div >
< div class = "line" > < a name = "l01503" > < / a > < span class = "lineno" > 1503< / span >   < span class = "keywordtype" > bool< / span > store_pairs)< span class = "keyword" > const< / span > < / div >
< div class = "line" > < a name = "l01504" > < / a > < span class = "lineno" > 1504< / span >   < span class = "keyword" > < / span > {< / div >
< div class = "line" > < a name = "l01505" > < / a > < span class = "lineno" > 1505< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > size_t< / span > k = res-> < a class = "code" href = "structfaiss_1_1HeapArray.html#a1ee98429c766c77235f78c6d9aa32bb4" > k< / a > ;< / div >
< div class = "line" > < a name = "l01506" > < / a > < span class = "lineno" > 1506< / span >   < / div >
< div class = "line" > < a name = "l01507" > < / a > < span class = "lineno" > 1507< / span >   < span class = "preprocessor" > #pragma omp parallel< / span > < / div >
< div class = "line" > < a name = "l01508" > < / a > < span class = "lineno" > 1508< / span >   < span class = "preprocessor" > < / span > {< / div >
< div class = "line" > < a name = "l01509" > < / a > < span class = "lineno" > 1509< / span >   InvertedListScanner< uint32_t> qt (*< span class = "keyword" > this< / span > );< / div >
< div class = "line" > < a name = "l01510" > < / a > < span class = "lineno" > 1510< / span >   < span class = "keywordtype" > size_t< / span > stats_nlist = 0;< / div >
< div class = "line" > < a name = "l01511" > < / a > < span class = "lineno" > 1511< / span >   < span class = "keywordtype" > size_t< / span > stats_ncode = 0;< / div >
< div class = "line" > < a name = "l01512" > < / a > < span class = "lineno" > 1512< / span >   uint64_t init_query_cycles = 0;< / div >
< div class = "line" > < a name = "l01513" > < / a > < span class = "lineno" > 1513< / span >   uint64_t scan_cycles = 0;< / div >
< div class = "line" > < a name = "l01514" > < / a > < span class = "lineno" > 1514< / span >   uint64_t heap_cycles = 0;< / div >
< div class = "line" > < a name = "l01515" > < / a > < span class = "lineno" > 1515< / span >   < / div >
< div class = "line" > < a name = "l01516" > < / a > < span class = "lineno" > 1516< / span >   < span class = "preprocessor" > #pragma omp for< / span > < / div >
< div class = "line" > < a name = "l01517" > < / a > < span class = "lineno" > 1517< / span >   < span class = "preprocessor" > < / span > < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > size_t< / span > i = 0; i < nx; i++) {< / div >
< div class = "line" > < a name = "l01518" > < / a > < span class = "lineno" > 1518< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > *qi = qx + i * < a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > ;< / div >
< div class = "line" > < a name = "l01519" > < / a > < span class = "lineno" > 1519< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > long< / span > * keysi = keys + i * < a class = "code" href = "structfaiss_1_1IndexIVF.html#affed235eadf27a13d753ee4d33a1dc58" > nprobe< / a > ;< / div >
< div class = "line" > < a name = "l01520" > < / a > < span class = "lineno" > 1520< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > *coarse_dis_i = coarse_dis + i * < a class = "code" href = "structfaiss_1_1IndexIVF.html#affed235eadf27a13d753ee4d33a1dc58" > nprobe< / a > ;< / div >
< div class = "line" > < a name = "l01521" > < / a > < span class = "lineno" > 1521< / span >   < span class = "keywordtype" > float< / span > * heap_sim = res-> < a class = "code" href = "structfaiss_1_1HeapArray.html#ae97911f6f85d152a5b45e459063b6858" > get_val< / a > (i);< / div >
< div class = "line" > < a name = "l01522" > < / a > < span class = "lineno" > 1522< / span >   < span class = "keywordtype" > long< / span > * heap_ids = res-> < a class = "code" href = "structfaiss_1_1HeapArray.html#af6aa57addaa1bc754d09a2a08be4df49" > get_ids< / a > (i);< / div >
< div class = "line" > < a name = "l01523" > < / a > < span class = "lineno" > 1523< / span >   < / div >
< div class = "line" > < a name = "l01524" > < / a > < span class = "lineno" > 1524< / span >   uint64_t t0;< / div >
< div class = "line" > < a name = "l01525" > < / a > < span class = "lineno" > 1525< / span >   TIC;< / div >
< div class = "line" > < a name = "l01526" > < / a > < span class = "lineno" > 1526< / span >   maxheap_heapify (k, heap_sim, heap_ids);< / div >
< div class = "line" > < a name = "l01527" > < / a > < span class = "lineno" > 1527< / span >   heap_cycles += TOC;< / div >
2017-03-21 01:33:21 +08:00
< div class = "line" > < a name = "l01528" > < / a > < span class = "lineno" > 1528< / span >   < / div >
2017-04-06 19:33:41 +08:00
< div class = "line" > < a name = "l01529" > < / a > < span class = "lineno" > 1529< / span >   TIC;< / div >
< div class = "line" > < a name = "l01530" > < / a > < span class = "lineno" > 1530< / span >   qt.init_query (qi);< / div >
< div class = "line" > < a name = "l01531" > < / a > < span class = "lineno" > 1531< / span >   init_query_cycles += TOC;< / div >
< div class = "line" > < a name = "l01532" > < / a > < span class = "lineno" > 1532< / span >   < / div >
< div class = "line" > < a name = "l01533" > < / a > < span class = "lineno" > 1533< / span >   < span class = "keywordtype" > size_t< / span > nscan = 0;< / div >
2017-03-21 01:33:21 +08:00
< div class = "line" > < a name = "l01534" > < / a > < span class = "lineno" > 1534< / span >   < / div >
2017-04-06 19:33:41 +08:00
< div class = "line" > < a name = "l01535" > < / a > < span class = "lineno" > 1535< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > size_t< / span > ik = 0; ik < < a class = "code" href = "structfaiss_1_1IndexIVF.html#affed235eadf27a13d753ee4d33a1dc58" > nprobe< / a > ; ik++) {< / div >
< div class = "line" > < a name = "l01536" > < / a > < span class = "lineno" > 1536< / span >   < span class = "keywordtype" > long< / span > key = keysi[ik]; < span class = "comment" > /* select the list */< / span > < / div >
< div class = "line" > < a name = "l01537" > < / a > < span class = "lineno" > 1537< / span >   < span class = "keywordflow" > if< / span > (key < 0) {< / div >
< div class = "line" > < a name = "l01538" > < / a > < span class = "lineno" > 1538< / span >   < span class = "comment" > // not enough centroids for multiprobe< / span > < / div >
< div class = "line" > < a name = "l01539" > < / a > < span class = "lineno" > 1539< / span >   < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l01540" > < / a > < span class = "lineno" > 1540< / span >   }< / div >
< div class = "line" > < a name = "l01541" > < / a > < span class = "lineno" > 1541< / span >   < span class = "keywordflow" > if< / span > (key > = (< span class = "keywordtype" > long< / span > ) nlist) {< / div >
< div class = "line" > < a name = "l01542" > < / a > < span class = "lineno" > 1542< / span >   fprintf (stderr, < span class = "stringliteral" > " Invalid key=%ld nlist=%ld\n" < / span > , key, nlist);< / div >
< div class = "line" > < a name = "l01543" > < / a > < span class = "lineno" > 1543< / span >   < span class = "keywordflow" > throw< / span > ;< / div >
< div class = "line" > < a name = "l01544" > < / a > < span class = "lineno" > 1544< / span >   }< / div >
< div class = "line" > < a name = "l01545" > < / a > < span class = "lineno" > 1545< / span >   < span class = "keywordtype" > size_t< / span > list_size = < a class = "code" href = "structfaiss_1_1IndexIVFPQCompact.html#a146ccc5a05aed1d2e96df8c1d3f7663d" > limits< / a > [key + 1] - < a class = "code" href = "structfaiss_1_1IndexIVFPQCompact.html#a146ccc5a05aed1d2e96df8c1d3f7663d" > limits< / a > [key];< / div >
< div class = "line" > < a name = "l01546" > < / a > < span class = "lineno" > 1546< / span >   stats_nlist ++;< / div >
< div class = "line" > < a name = "l01547" > < / a > < span class = "lineno" > 1547< / span >   nscan += list_size;< / div >
< div class = "line" > < a name = "l01548" > < / a > < span class = "lineno" > 1548< / span >   < / div >
< div class = "line" > < a name = "l01549" > < / a > < span class = "lineno" > 1549< / span >   < span class = "keywordflow" > if< / span > (list_size == 0) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l01550" > < / a > < span class = "lineno" > 1550< / span >   < / div >
< div class = "line" > < a name = "l01551" > < / a > < span class = "lineno" > 1551< / span >   qt.init_list (key, coarse_dis_i[ik],< / div >
< div class = "line" > < a name = "l01552" > < / a > < span class = "lineno" > 1552< / span >   list_size, < a class = "code" href = "structfaiss_1_1IndexIVFPQCompact.html#a1fa62ed464c15768479c92646ed484c7" > compact_ids< / a > + limits[key],< / div >
< div class = "line" > < a name = "l01553" > < / a > < span class = "lineno" > 1553< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQCompact.html#aaaf53cae0e47baf3fb1199ce4d789694" > compact_codes< / a > + limits[key] * code_size);< / div >
< div class = "line" > < a name = "l01554" > < / a > < span class = "lineno" > 1554< / span >   < / div >
< div class = "line" > < a name = "l01555" > < / a > < span class = "lineno" > 1555< / span >   TIC;< / div >
< div class = "line" > < a name = "l01556" > < / a > < span class = "lineno" > 1556< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a3093a0a3e128eafce6e0583b75e9662e" > polysemous_ht< / a > > 0) {< / div >
< div class = "line" > < a name = "l01557" > < / a > < span class = "lineno" > 1557< / span >   qt.scan_list_polysemous< / div >
< div class = "line" > < a name = "l01558" > < / a > < span class = "lineno" > 1558< / span >   (k, heap_sim, heap_ids, store_pairs);< / div >
< div class = "line" > < a name = "l01559" > < / a > < span class = "lineno" > 1559< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (list_size > < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a7430fc4fa030c96497abced3b68358d4" > scan_table_threshold< / a > ) {< / div >
< div class = "line" > < a name = "l01560" > < / a > < span class = "lineno" > 1560< / span >   qt.scan_list_with_table (k, heap_sim, heap_ids, store_pairs);< / div >
< div class = "line" > < a name = "l01561" > < / a > < span class = "lineno" > 1561< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l01562" > < / a > < span class = "lineno" > 1562< / span >   qt.scan_on_the_fly_dist (k, heap_sim, heap_ids, store_pairs);< / div >
< div class = "line" > < a name = "l01563" > < / a > < span class = "lineno" > 1563< / span >   }< / div >
< div class = "line" > < a name = "l01564" > < / a > < span class = "lineno" > 1564< / span >   scan_cycles += TOC;< / div >
2017-03-21 01:33:21 +08:00
< div class = "line" > < a name = "l01565" > < / a > < span class = "lineno" > 1565< / span >   < / div >
2017-04-06 19:33:41 +08:00
< div class = "line" > < a name = "l01566" > < / a > < span class = "lineno" > 1566< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a77501995b3671e377102d2db1a93ade4" > max_codes< / a > & & nscan > = < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a77501995b3671e377102d2db1a93ade4" > max_codes< / a > ) < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l01567" > < / a > < span class = "lineno" > 1567< / span >   }< / div >
< div class = "line" > < a name = "l01568" > < / a > < span class = "lineno" > 1568< / span >   stats_ncode += nscan;< / div >
< div class = "line" > < a name = "l01569" > < / a > < span class = "lineno" > 1569< / span >   TIC;< / div >
< div class = "line" > < a name = "l01570" > < / a > < span class = "lineno" > 1570< / span >   maxheap_reorder (k, heap_sim, heap_ids);< / div >
2017-02-23 06:26:44 +08:00
< div class = "line" > < a name = "l01571" > < / a > < span class = "lineno" > 1571< / span >   < / div >
2017-04-06 19:33:41 +08:00
< div class = "line" > < a name = "l01572" > < / a > < span class = "lineno" > 1572< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "structfaiss_1_1Index.html#a8e18f641854b2bde83ecff0a2f9a6f4e" > metric_type< / a > == METRIC_INNER_PRODUCT) {< / div >
< div class = "line" > < a name = "l01573" > < / a > < span class = "lineno" > 1573< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > size_t< / span > j = 0; j < k; j++) {< / div >
< div class = "line" > < a name = "l01574" > < / a > < span class = "lineno" > 1574< / span >   heap_sim[i] = -heap_sim[i];< / div >
< div class = "line" > < a name = "l01575" > < / a > < span class = "lineno" > 1575< / span >   }< / div >
< div class = "line" > < a name = "l01576" > < / a > < span class = "lineno" > 1576< / span >   }< / div >
< div class = "line" > < a name = "l01577" > < / a > < span class = "lineno" > 1577< / span >   heap_cycles += TOC;< / div >
< div class = "line" > < a name = "l01578" > < / a > < span class = "lineno" > 1578< / span >   }< / div >
< div class = "line" > < a name = "l01579" > < / a > < span class = "lineno" > 1579< / span >   < / div >
< div class = "line" > < a name = "l01580" > < / a > < span class = "lineno" > 1580< / span >   < span class = "preprocessor" > #pragma omp critical< / span > < / div >
< div class = "line" > < a name = "l01581" > < / a > < span class = "lineno" > 1581< / span >   < span class = "preprocessor" > < / span > {< / div >
< div class = "line" > < a name = "l01582" > < / a > < span class = "lineno" > 1582< / span >   indexIVFPQ_stats.n_hamming_pass += qt.n_hamming_pass;< / div >
< div class = "line" > < a name = "l01583" > < / a > < span class = "lineno" > 1583< / span >   indexIVFPQ_stats.nlist += stats_nlist;< / div >
< div class = "line" > < a name = "l01584" > < / a > < span class = "lineno" > 1584< / span >   indexIVFPQ_stats.ncode += stats_ncode;< / div >
< div class = "line" > < a name = "l01585" > < / a > < span class = "lineno" > 1585< / span >   < / div >
< div class = "line" > < a name = "l01586" > < / a > < span class = "lineno" > 1586< / span >   indexIVFPQ_stats.init_query_cycles += init_query_cycles;< / div >
< div class = "line" > < a name = "l01587" > < / a > < span class = "lineno" > 1587< / span >   indexIVFPQ_stats.init_list_cycles += qt.init_list_cycles;< / div >
< div class = "line" > < a name = "l01588" > < / a > < span class = "lineno" > 1588< / span >   indexIVFPQ_stats.scan_cycles += scan_cycles - qt.init_list_cycles;< / div >
< div class = "line" > < a name = "l01589" > < / a > < span class = "lineno" > 1589< / span >   indexIVFPQ_stats.heap_cycles += heap_cycles;< / div >
< div class = "line" > < a name = "l01590" > < / a > < span class = "lineno" > 1590< / span >   }< / div >
< div class = "line" > < a name = "l01591" > < / a > < span class = "lineno" > 1591< / span >   < / div >
< div class = "line" > < a name = "l01592" > < / a > < span class = "lineno" > 1592< / span >   }< / div >
< div class = "line" > < a name = "l01593" > < / a > < span class = "lineno" > 1593< / span >   indexIVFPQ_stats.nq += nx;< / div >
< div class = "line" > < a name = "l01594" > < / a > < span class = "lineno" > 1594< / span >   }< / div >
< div class = "line" > < a name = "l01595" > < / a > < span class = "lineno" > 1595< / span >   < / div >
< div class = "line" > < a name = "l01596" > < / a > < span class = "lineno" > 1596< / span >   < / div >
< div class = "line" > < a name = "l01597" > < / a > < span class = "lineno" > 1597< / span >   < / div >
< div class = "line" > < a name = "l01598" > < / a > < span class = "lineno" > 1598< / span >   } < span class = "comment" > // namespace faiss< / span > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQCompact_html_a1fa62ed464c15768479c92646ed484c7" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQCompact.html#a1fa62ed464c15768479c92646ed484c7" > faiss::IndexIVFPQCompact::compact_ids< / a > < / div > < div class = "ttdeci" > uint32_t * compact_ids< / div > < div class = "ttdoc" > size ntotal < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8h_source.html#l00262" > IndexIVFPQ.h:262< / a > < / div > < / div >
2017-02-23 06:26:44 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexIVF_html" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVF.html" > faiss::IndexIVF< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVF_8h_source.html#l00046" > IndexIVF.h:46< / a > < / div > < / div >
2017-04-06 19:33:41 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQCompact_html_aaaf53cae0e47baf3fb1199ce4d789694" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQCompact.html#aaaf53cae0e47baf3fb1199ce4d789694" > faiss::IndexIVFPQCompact::compact_codes< / a > < / div > < div class = "ttdeci" > uint8_t * compact_codes< / div > < div class = "ttdoc" > size ntotal * code_size < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8h_source.html#l00263" > IndexIVFPQ.h:263< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQ_html_ad99c215aeaf92e995cb97f4044c4d267" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQ.html#ad99c215aeaf92e995cb97f4044c4d267" > faiss::IndexIVFPQ::precompute_table< / a > < / div > < div class = "ttdeci" > void precompute_table()< / div > < div class = "ttdoc" > build precomputed table < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8cpp_source.html#l00400" > IndexIVFPQ.cpp:400< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQ_html_af278c710f6c7605f59e1da48a6dea37a" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQ.html#af278c710f6c7605f59e1da48a6dea37a" > faiss::IndexIVFPQ::copy_subset_to< / a > < / div > < div class = "ttdeci" > void copy_subset_to(IndexIVFPQ & other, int subset_type, long a1, long a2) const < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8cpp_source.html#l00341" > IndexIVFPQ.cpp:341< / a > < / div > < / div >
2017-02-23 06:26:44 +08:00
< div class = "ttc" id = "structfaiss_1_1ProductQuantizer_html_ac920fea11f02e8407d12cc99a09f5ea5" > < div class = "ttname" > < a href = "structfaiss_1_1ProductQuantizer.html#ac920fea11f02e8407d12cc99a09f5ea5" > faiss::ProductQuantizer::nbits< / a > < / div > < div class = "ttdeci" > size_t nbits< / div > < div class = "ttdoc" > number of bits per quantization index < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "ProductQuantizer_8h_source.html#l00030" > ProductQuantizer.h:30< / a > < / div > < / div >
2017-04-06 19:33:41 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQ_html_a28ce697b1381eb7e7d7d25774a25e175" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQ.html#a28ce697b1381eb7e7d7d25774a25e175" > faiss::IndexIVFPQ::reconstruct< / a > < / div > < div class = "ttdeci" > virtual void reconstruct(idx_t key, float *recons) const override< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8cpp_source.html#l00311" > IndexIVFPQ.cpp:311< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQR_html" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQR.html" > faiss::IndexIVFPQR< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8h_source.html#l00202" > IndexIVFPQ.h:202< / a > < / div > < / div >
2017-02-23 06:26:44 +08:00
< div class = "ttc" id = "structfaiss_1_1ProductQuantizer_html_a7afbf9d96276f021981e99f064254208" > < div class = "ttname" > < a href = "structfaiss_1_1ProductQuantizer.html#a7afbf9d96276f021981e99f064254208" > faiss::ProductQuantizer::decode< / a > < / div > < div class = "ttdeci" > void decode(const uint8_t *code, float *x) const < / div > < div class = "ttdoc" > decode a vector from a given code (or n vectors if third argument) < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "ProductQuantizer_8cpp_source.html#l00338" > ProductQuantizer.cpp:338< / a > < / div > < / div >
2017-04-06 19:33:41 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQR_html_a4a80540e7cdfb3e43712ffb93e083a7c" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQR.html#a4a80540e7cdfb3e43712ffb93e083a7c" > faiss::IndexIVFPQR::refine_pq< / a > < / div > < div class = "ttdeci" > ProductQuantizer refine_pq< / div > < div class = "ttdoc" > 3rd level quantizer < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8h_source.html#l00203" > IndexIVFPQ.h:203< / a > < / div > < / div >
< div class = "ttc" id = "namespacefaiss_html_a7466bd32de31640860393a701eaac5ad" > < div class = "ttname" > < a href = "namespacefaiss.html#a7466bd32de31640860393a701eaac5ad" > faiss::fvec_L2sqr< / a > < / div > < div class = "ttdeci" > float fvec_L2sqr(const float *x, const float *y, size_t d)< / div > < div class = "ttdoc" > Squared L2 distance between two vectors. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "utils_8cpp_source.html#l00432" > utils.cpp:432< / a > < / div > < / div >
2017-02-23 06:26:44 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQ_html_a2b14cbb5acb3fc28a4df8fde3f5567cd" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQ.html#a2b14cbb5acb3fc28a4df8fde3f5567cd" > faiss::IndexIVFPQ::polysemous_training< / a > < / div > < div class = "ttdeci" > PolysemousTraining * polysemous_training< / div > < div class = "ttdoc" > if NULL, use default < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8h_source.html#l00037" > IndexIVFPQ.h:37< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1HeapArray_html_ae97911f6f85d152a5b45e459063b6858" > < div class = "ttname" > < a href = "structfaiss_1_1HeapArray.html#ae97911f6f85d152a5b45e459063b6858" > faiss::HeapArray::get_val< / a > < / div > < div class = "ttdeci" > T * get_val(size_t key)< / div > < div class = "ttdoc" > Return the list of values for a heap. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "Heap_8h_source.html#l00361" > Heap.h:361< / a > < / div > < / div >
2017-04-06 19:33:41 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQCompact_html_ade7b46bbbcaf244ad680104380afb1b8" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQCompact.html#ade7b46bbbcaf244ad680104380afb1b8" > faiss::IndexIVFPQCompact::add< / a > < / div > < div class = "ttdeci" > virtual void add(idx_t, const float *) override< / div > < div class = "ttdoc" > the three following functions will fail at runtime < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8cpp_source.html#l01469" > IndexIVFPQ.cpp:1469< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQCompact_html_a583dd638a00cb9246ac7b54ee6d65f95" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQCompact.html#a583dd638a00cb9246ac7b54ee6d65f95" > faiss::IndexIVFPQCompact::search_knn_with_key< / a > < / div > < div class = "ttdeci" > virtual void search_knn_with_key(size_t nx, const float *qx, const long *keys, const float *coarse_dis, float_maxheap_array_t *res, bool store_pairs=false) const override< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8cpp_source.html#l01497" > IndexIVFPQ.cpp:1497< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQR_html_a0f0d8fc6b2c6aa2431c1730111a3b22a" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQR.html#a0f0d8fc6b2c6aa2431c1730111a3b22a" > faiss::IndexIVFPQR::reconstruct_n< / a > < / div > < div class = "ttdeci" > virtual void reconstruct_n(idx_t i0, idx_t ni, float *recons) const override< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8cpp_source.html#l01360" > IndexIVFPQ.cpp:1360< / a > < / div > < / div >
2017-03-21 01:33:21 +08:00
< div class = "ttc" id = "namespacefaiss_html_a14884d253128c7af5891a65082ad7dc6" > < div class = "ttname" > < a href = "namespacefaiss.html#a14884d253128c7af5891a65082ad7dc6" > faiss::fvecs_maybe_subsample< / a > < / div > < div class = "ttdeci" > const float * fvecs_maybe_subsample(size_t d, size_t *n, size_t nmax, const float *x, bool verbose, long seed)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "utils_8cpp_source.html#l01793" > utils.cpp:1793< / a > < / div > < / div >
2017-02-23 06:26:44 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexIVF_html_affed235eadf27a13d753ee4d33a1dc58" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVF.html#affed235eadf27a13d753ee4d33a1dc58" > faiss::IndexIVF::nprobe< / a > < / div > < div class = "ttdeci" > size_t nprobe< / div > < div class = "ttdoc" > number of probes at query time < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVF_8h_source.html#l00048" > IndexIVF.h:48< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1Index_html_a8bc5d8d1cd0dd7b34b3c98a9f76b4a9c" > < div class = "ttname" > < a href = "structfaiss_1_1Index.html#a8bc5d8d1cd0dd7b34b3c98a9f76b4a9c" > faiss::Index::assign< / a > < / div > < div class = "ttdeci" > void assign(idx_t n, const float *x, idx_t *labels, idx_t k=1)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "Index_8cpp_source.html#l00024" > Index.cpp:24< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IDSelector_html" > < div class = "ttname" > < a href = "structfaiss_1_1IDSelector.html" > faiss::IDSelector< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "AuxIndexStructures_8h_source.html#l00058" > AuxIndexStructures.h:58< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexIVF_html_a23ee7f75f8be4472a17778f2b33875de" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVF.html#a23ee7f75f8be4472a17778f2b33875de" > faiss::IndexIVF::quantizer_trains_alone< / a > < / div > < div class = "ttdeci" > bool quantizer_trains_alone< / div > < div class = "ttdoc" > just pass over the trainset to quantizer < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVF_8h_source.html#l00051" > IndexIVF.h:51< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexIVFFlat_html_a0117e9eac02ce8d106d8a288234f365c" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFFlat.html#a0117e9eac02ce8d106d8a288234f365c" > faiss::IndexIVFFlat::set_typename< / a > < / div > < div class = "ttdeci" > virtual void set_typename() override< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVF_8cpp_source.html#l00207" > IndexIVF.cpp:207< / a > < / div > < / div >
2017-04-06 19:33:41 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQCompact_html_ab2698c5d65644a171c53ffe39e420b70a38c1b1ed9ebdbd4b0047be13080094bb" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQCompact.html#ab2698c5d65644a171c53ffe39e420b70a38c1b1ed9ebdbd4b0047be13080094bb" > faiss::IndexIVFPQCompact::Alloc_type_mmap< / a > < / div > < div class = "ttdoc" > was mmapped < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8h_source.html#l00256" > IndexIVFPQ.h:256< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQ_html_a6b8964e2da609a9261a8a35ae347ecb2" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQ.html#a6b8964e2da609a9261a8a35ae347ecb2" > faiss::IndexIVFPQ::merge_from_residuals< / a > < / div > < div class = "ttdeci" > virtual void merge_from_residuals(IndexIVF & other) override< / div > < div class = "ttdoc" > used to implement merging < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8cpp_source.html#l00331" > IndexIVFPQ.cpp:331< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQ_html_ae1fb0cc3051dec8e322a78c443f8fc9a" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQ.html#ae1fb0cc3051dec8e322a78c443f8fc9a" > faiss::IndexIVFPQ::decode_multiple< / a > < / div > < div class = "ttdeci" > void decode_multiple(size_t n, const long *keys, const uint8_t *xcodes, float *x) const < / div > < div class = "ttdoc" > inverse of encode_multiple < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8cpp_source.html#l00177" > IndexIVFPQ.cpp:177< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQ_html_a4e06f04853dcb424dc393de5f641e917" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQ.html#a4e06f04853dcb424dc393de5f641e917" > faiss::IndexIVFPQ::train_residual_o< / a > < / div > < div class = "ttdeci" > void train_residual_o(idx_t n, const float *x, float *residuals_2)< / div > < div class = "ttdoc" > same as train_residual, also output 2nd level residuals < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8cpp_source.html#l00084" > IndexIVFPQ.cpp:84< / a > < / div > < / div >
2017-02-23 06:26:44 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQ_html_a9d5373633df7a9bec4de69400b9adeed" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQ.html#a9d5373633df7a9bec4de69400b9adeed" > faiss::IndexIVFPQ::do_polysemous_training< / a > < / div > < div class = "ttdeci" > bool do_polysemous_training< / div > < div class = "ttdoc" > reorder PQ centroids after training? < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8h_source.html#l00036" > IndexIVFPQ.h:36< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQ_html_a7430fc4fa030c96497abced3b68358d4" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQ.html#a7430fc4fa030c96497abced3b68358d4" > faiss::IndexIVFPQ::scan_table_threshold< / a > < / div > < div class = "ttdeci" > size_t scan_table_threshold< / div > < div class = "ttdoc" > use table computation or on-the-fly? < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8h_source.html#l00040" > IndexIVFPQ.h:40< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1HeapArray_html_a1ee98429c766c77235f78c6d9aa32bb4" > < div class = "ttname" > < a href = "structfaiss_1_1HeapArray.html#a1ee98429c766c77235f78c6d9aa32bb4" > faiss::HeapArray::k< / a > < / div > < div class = "ttdeci" > size_t k< / div > < div class = "ttdoc" > allocated size per heap < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "Heap_8h_source.html#l00356" > Heap.h:356< / a > < / div > < / div >
2017-04-06 19:33:41 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQR_html_a68ed7cae5bec89fcdcb6a1d2addbd5a8" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQR.html#a68ed7cae5bec89fcdcb6a1d2addbd5a8" > faiss::IndexIVFPQR::train_residual< / a > < / div > < div class = "ttdeci" > virtual void train_residual(idx_t n, const float *x) override< / div > < div class = "ttdoc" > trains the two product quantizers < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8cpp_source.html#l01230" > IndexIVFPQ.cpp:1230< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQR_html_a186b746f22b65ddf416b1e821b0866ec" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQR.html#a186b746f22b65ddf416b1e821b0866ec" > faiss::IndexIVFPQR::add_core< / a > < / div > < div class = "ttdeci" > void add_core(idx_t n, const float *x, const long *xids, const long *precomputed_idx=nullptr)< / div > < div class = "ttdoc" > same as add_with_ids, but optionally use the precomputed list ids < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8cpp_source.html#l01254" > IndexIVFPQ.cpp:1254< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQCompact_html_a146ccc5a05aed1d2e96df8c1d3f7663d" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQCompact.html#a146ccc5a05aed1d2e96df8c1d3f7663d" > faiss::IndexIVFPQCompact::limits< / a > < / div > < div class = "ttdeci" > uint32_t * limits< / div > < div class = "ttdoc" > size nlist + 1 < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8h_source.html#l00261" > IndexIVFPQ.h:261< / a > < / div > < / div >
2017-02-23 06:26:44 +08:00
< div class = "ttc" id = "structfaiss_1_1ProductQuantizer_html_a467b451ca203544e42c250e4be65b983" > < div class = "ttname" > < a href = "structfaiss_1_1ProductQuantizer.html#a467b451ca203544e42c250e4be65b983" > faiss::ProductQuantizer::dsub< / a > < / div > < div class = "ttdeci" > size_t dsub< / div > < div class = "ttdoc" > dimensionality of each subvector < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "ProductQuantizer_8h_source.html#l00033" > ProductQuantizer.h:33< / a > < / div > < / div >
2017-03-21 01:33:21 +08:00
< div class = "ttc" id = "structfaiss_1_1ClusteringParameters_html_a509c65e2ebe6ecabebd163ecb03c5579" > < div class = "ttname" > < a href = "structfaiss_1_1ClusteringParameters.html#a509c65e2ebe6ecabebd163ecb03c5579" > faiss::ClusteringParameters::seed< / a > < / div > < div class = "ttdeci" > int seed< / div > < div class = "ttdoc" > seed for the random number generator < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "Clustering_8h_source.html#l00036" > Clustering.h:36< / a > < / div > < / div >
2017-02-23 06:26:44 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQ_html_a9b310195d610c3e326471b3758206b59" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQ.html#a9b310195d610c3e326471b3758206b59" > faiss::IndexIVFPQ::precomputed_table< / a > < / div > < div class = "ttdeci" > std::vector< float > precomputed_table< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8h_source.html#l00048" > IndexIVFPQ.h:48< / a > < / div > < / div >
2017-02-25 00:32:08 +08:00
< div class = "ttc" id = "namespacefaiss_html_a40328c31abd0bbba5bd95d7de951e847" > < div class = "ttname" > < a href = "namespacefaiss.html#a40328c31abd0bbba5bd95d7de951e847" > faiss::fvec_madd< / a > < / div > < div class = "ttdeci" > void fvec_madd(size_t n, const float *a, float bf, const float *b, float *c)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "utils_8cpp_source.html#l01707" > utils.cpp:1707< / a > < / div > < / div >
2017-02-23 06:26:44 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQ_html_a3093a0a3e128eafce6e0583b75e9662e" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQ.html#a3093a0a3e128eafce6e0583b75e9662e" > faiss::IndexIVFPQ::polysemous_ht< / a > < / div > < div class = "ttdeci" > int polysemous_ht< / div > < div class = "ttdoc" > Hamming thresh for polysemous filtering. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8h_source.html#l00042" > IndexIVFPQ.h:42< / a > < / div > < / div >
2017-04-06 19:33:41 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQ_html_ad5ae3ae94b4776291f6abee5110c7c0c" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQ.html#ad5ae3ae94b4776291f6abee5110c7c0c" > faiss::IndexIVFPQ::search_knn_with_key< / a > < / div > < div class = "ttdeci" > virtual void search_knn_with_key(size_t nx, const float *qx, const long *keys, const float *coarse_dis, float_maxheap_array_t *res, bool store_pairs=false) const < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8cpp_source.html#l00970" > IndexIVFPQ.cpp:970< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQR_html_ae0e979a014a9defe2254e9543657b075" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQR.html#ae0e979a014a9defe2254e9543657b075" > faiss::IndexIVFPQR::reset< / a > < / div > < div class = "ttdeci" > virtual void reset() override< / div > < div class = "ttdoc" > removes all elements from the database. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8cpp_source.html#l01221" > IndexIVFPQ.cpp:1221< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQ_html_a981c2748bfbd9b018494f119279a0342" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQ.html#a981c2748bfbd9b018494f119279a0342" > faiss::IndexIVFPQ::add_with_ids< / a > < / div > < div class = "ttdeci" > virtual void add_with_ids(idx_t n, const float *x, const long *xids=nullptr) override< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8cpp_source.html#l00194" > IndexIVFPQ.cpp:194< / a > < / div > < / div >
2017-02-23 06:26:44 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexIVF_html_af16d325f5bef22b2e5f90ceea796e80d" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVF.html#af16d325f5bef22b2e5f90ceea796e80d" > faiss::IndexIVF::ids< / a > < / div > < div class = "ttdeci" > std::vector< std::vector< long > > ids< / div > < div class = "ttdoc" > Inverted lists for indexes. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVF_8h_source.html#l00056" > IndexIVF.h:56< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1ProductQuantizer_html_ae5a340ee5a4b1d35a565b167de2a2ef1" > < div class = "ttname" > < a href = "structfaiss_1_1ProductQuantizer.html#ae5a340ee5a4b1d35a565b167de2a2ef1" > faiss::ProductQuantizer::compute_codes< / a > < / div > < div class = "ttdeci" > void compute_codes(const float *x, uint8_t *codes, size_t n) const < / div > < div class = "ttdoc" > same as compute_code for several vectors < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "ProductQuantizer_8cpp_source.html#l00385" > ProductQuantizer.cpp:385< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1Index_html_a2a002388d2c081c2dbab8508dcefe73d" > < div class = "ttname" > < a href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > faiss::Index::d< / a > < / div > < div class = "ttdeci" > int d< / div > < div class = "ttdoc" > vector dimension < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "Index_8h_source.html#l00066" > Index.h:66< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexIVF_html_a4b40cc7a70dff41196a3b8769586667a" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVF.html#a4b40cc7a70dff41196a3b8769586667a" > faiss::IndexIVF::quantizer< / a > < / div > < div class = "ttdeci" > Index * quantizer< / div > < div class = "ttdoc" > quantizer that maps vectors to inverted lists < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVF_8h_source.html#l00050" > IndexIVF.h:50< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQ_html_a77501995b3671e377102d2db1a93ade4" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQ.html#a77501995b3671e377102d2db1a93ade4" > faiss::IndexIVFPQ::max_codes< / a > < / div > < div class = "ttdeci" > size_t max_codes< / div > < div class = "ttdoc" > max nb of codes to visit to do a query < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8h_source.html#l00041" > IndexIVFPQ.h:41< / a > < / div > < / div >
2017-04-06 19:33:41 +08:00
< div class = "ttc" id = "structfaiss_1_1CodeCmp_html" > < div class = "ttname" > < a href = "structfaiss_1_1CodeCmp.html" > faiss::CodeCmp< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8cpp_source.html#l01141" > IndexIVFPQ.cpp:1141< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQR_html_a588bd0b733c8db18eaeb7bc287afd16e" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQR.html#a588bd0b733c8db18eaeb7bc287afd16e" > faiss::IndexIVFPQR::refine_codes< / a > < / div > < div class = "ttdeci" > std::vector< uint8_t > refine_codes< / div > < div class = "ttdoc" > corresponding codes < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8h_source.html#l00204" > IndexIVFPQ.h:204< / a > < / div > < / div >
2017-02-23 06:26:44 +08:00
< div class = "ttc" id = "structfaiss_1_1ProductQuantizer_html_aa61330eadb84772b71018b093773a5f9" > < div class = "ttname" > < a href = "structfaiss_1_1ProductQuantizer.html#aa61330eadb84772b71018b093773a5f9" > faiss::ProductQuantizer::code_size< / a > < / div > < div class = "ttdeci" > size_t code_size< / div > < div class = "ttdoc" > byte per indexed vector < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "ProductQuantizer_8h_source.html#l00035" > ProductQuantizer.h:35< / a > < / div > < / div >
2017-04-06 19:33:41 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQ_html_ad9fa584ac2e12e9b9bb25a737efcc4d9" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQ.html#ad9fa584ac2e12e9b9bb25a737efcc4d9" > faiss::IndexIVFPQ::remove_ids< / a > < / div > < div class = "ttdeci" > virtual long remove_ids(const IDSelector & sel) override< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8cpp_source.html#l01097" > IndexIVFPQ.cpp:1097< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQ_html_af6565a5d8bab7be3df19c50d235bd662" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQ.html#af6565a5d8bab7be3df19c50d235bd662" > faiss::IndexIVFPQ::train_residual< / a > < / div > < div class = "ttdeci" > virtual void train_residual(idx_t n, const float *x) override< / div > < div class = "ttdoc" > trains the product quantizer < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8cpp_source.html#l00078" > IndexIVFPQ.cpp:78< / a > < / div > < / div >
2017-02-23 06:26:44 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQ_html" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQ.html" > faiss::IndexIVFPQ< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8h_source.html#l00030" > IndexIVFPQ.h:30< / a > < / div > < / div >
2017-04-06 19:33:41 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQ_html_a1ae6cdd996bbd398fa4e87646c8f3ba6" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQ.html#a1ae6cdd996bbd398fa4e87646c8f3ba6" > faiss::IndexIVFPQ::encode_multiple< / a > < / div > < div class = "ttdeci" > void encode_multiple(size_t n, long *keys, const float *x, uint8_t *codes, bool compute_keys=false) const < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8cpp_source.html#l00158" > IndexIVFPQ.cpp:158< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQCompact_html_a0ef8132fae22a50616fe1201c8b20588" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQCompact.html#a0ef8132fae22a50616fe1201c8b20588" > faiss::IndexIVFPQCompact::train< / a > < / div > < div class = "ttdeci" > virtual void train(idx_t, const float *) override< / div > < div class = "ttdoc" > Trains the quantizer and calls train_residual to train sub-quantizers. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8cpp_source.html#l01477" > IndexIVFPQ.cpp:1477< / a > < / div > < / div >
2017-02-23 06:26:44 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexIVF_html_aed2e9757ad5f3c234fd8ad60175a2a73" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVF.html#aed2e9757ad5f3c234fd8ad60175a2a73" > faiss::IndexIVF::own_fields< / a > < / div > < div class = "ttdeci" > bool own_fields< / div > < div class = "ttdoc" > whether object owns the quantizer < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVF_8h_source.html#l00052" > IndexIVF.h:52< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1ProductQuantizer_html_a0feee45e4151547b7a0444c14bad398f" > < div class = "ttname" > < a href = "structfaiss_1_1ProductQuantizer.html#a0feee45e4151547b7a0444c14bad398f" > faiss::ProductQuantizer::ksub< / a > < / div > < div class = "ttdeci" > size_t ksub< / div > < div class = "ttdoc" > number of centroids for each subquantizer < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "ProductQuantizer_8h_source.html#l00036" > ProductQuantizer.h:36< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1HeapArray_html" > < div class = "ttname" > < a href = "structfaiss_1_1HeapArray.html" > faiss::HeapArray< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "Heap_8h_source.html#l00351" > Heap.h:351< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1Index_html_a040c6aed1f224f3ea7bf58eebc0c31a4" > < div class = "ttname" > < a href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > faiss::Index::idx_t< / a > < / div > < div class = "ttdeci" > long idx_t< / div > < div class = "ttdoc" > all indices are this type < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "Index_8h_source.html#l00064" > Index.h:64< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1ProductQuantizer_html_a08b130e3a21f2699a4e3bbec121fb838" > < div class = "ttname" > < a href = "structfaiss_1_1ProductQuantizer.html#a08b130e3a21f2699a4e3bbec121fb838" > faiss::ProductQuantizer::compute_code< / a > < / div > < div class = "ttdeci" > void compute_code(const float *x, uint8_t *code) const < / div > < div class = "ttdoc" > Quantize one vector with the product quantizer. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "ProductQuantizer_8cpp_source.html#l00311" > ProductQuantizer.cpp:311< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1Index_html_a6970683faa021b7a6f1a0865c0d4eccd" > < div class = "ttname" > < a href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > faiss::Index::ntotal< / a > < / div > < div class = "ttdeci" > idx_t ntotal< / div > < div class = "ttdoc" > total nb of indexed vectors < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "Index_8h_source.html#l00067" > Index.h:67< / a > < / div > < / div >
2017-04-06 19:33:41 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQ_html_acd807799dc56dcef0f221847a2af86f7" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQ.html#acd807799dc56dcef0f221847a2af86f7" > faiss::IndexIVFPQ::reset< / a > < / div > < div class = "ttdeci" > virtual void reset() override< / div > < div class = "ttdoc" > removes all elements from the database. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8cpp_source.html#l01089" > IndexIVFPQ.cpp:1089< / a > < / div > < / div >
2017-02-23 06:26:44 +08:00
< div class = "ttc" id = "structfaiss_1_1Index_html_a5590d847c5c2b958affd2a05e58a6f23" > < div class = "ttname" > < a href = "structfaiss_1_1Index.html#a5590d847c5c2b958affd2a05e58a6f23" > faiss::Index::verbose< / a > < / div > < div class = "ttdeci" > bool verbose< / div > < div class = "ttdoc" > verbosity level < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "Index_8h_source.html#l00068" > Index.h:68< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexIVF_html_a47a3b7665e9d2be41c6d3b2e9144b73f" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVF.html#a47a3b7665e9d2be41c6d3b2e9144b73f" > faiss::IndexIVF::reset< / a > < / div > < div class = "ttdeci" > virtual void reset() override< / div > < div class = "ttdoc" > removes all elements from the database. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVF_8cpp_source.html#l00087" > IndexIVF.cpp:87< / a > < / div > < / div >
2017-02-25 00:32:08 +08:00
< div class = "ttc" id = "namespacefaiss_html_af2a71f7d5402ae02ce169a4cc83020eb" > < div class = "ttname" > < a href = "namespacefaiss.html#af2a71f7d5402ae02ce169a4cc83020eb" > faiss::getmillisecs< / a > < / div > < div class = "ttdeci" > double getmillisecs()< / div > < div class = "ttdoc" > ms elapsed since some arbitrary epoch < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "utils_8cpp_source.html#l00071" > utils.cpp:71< / a > < / div > < / div >
2017-02-23 06:26:44 +08:00
< div class = "ttc" id = "structfaiss_1_1PolysemousTraining_html" > < div class = "ttname" > < a href = "structfaiss_1_1PolysemousTraining.html" > faiss::PolysemousTraining< / a > < / div > < div class = "ttdoc" > optimizes the order of indices in a ProductQuantizer < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "PolysemousTraining_8h_source.html#l00127" > PolysemousTraining.h:127< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1MultiIndexQuantizer_html" > < div class = "ttname" > < a href = "structfaiss_1_1MultiIndexQuantizer.html" > faiss::MultiIndexQuantizer< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexPQ_8h_source.html#l00137" > IndexPQ.h:137< / a > < / div > < / div >
2017-04-06 19:33:41 +08:00
< div class = "ttc" id = "namespacefaiss_html_a7a49180ebf10e643217bbce5862c7f84" > < div class = "ttname" > < a href = "namespacefaiss.html#a7a49180ebf10e643217bbce5862c7f84" > faiss::fvec_norm_L2sqr< / a > < / div > < div class = "ttdeci" > float fvec_norm_L2sqr(const float *x, size_t d)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "utils_8cpp_source.html#l00513" > utils.cpp:513< / a > < / div > < / div >
2017-02-23 06:26:44 +08:00
< div class = "ttc" id = "structfaiss_1_1ProductQuantizer_html_af265acf5aa1bcda60898002287e6a3d6" > < div class = "ttname" > < a href = "structfaiss_1_1ProductQuantizer.html#af265acf5aa1bcda60898002287e6a3d6" > faiss::ProductQuantizer::cp< / a > < / div > < div class = "ttdeci" > ClusteringParameters cp< / div > < div class = "ttdoc" > parameters used during clustering < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "ProductQuantizer_8h_source.html#l00050" > ProductQuantizer.h:50< / a > < / div > < / div >
2017-04-06 19:33:41 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQR_html_af6c7ee3bc917cc5d4ab04ff64269ee06" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQR.html#af6c7ee3bc917cc5d4ab04ff64269ee06" > faiss::IndexIVFPQR::merge_from_residuals< / a > < / div > < div class = "ttdeci" > virtual void merge_from_residuals(IndexIVF & other) override< / div > < div class = "ttdoc" > used to implement merging < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8cpp_source.html#l01377" > IndexIVFPQ.cpp:1377< / a > < / div > < / div >
2017-02-23 06:26:44 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQ_html_afd13b471df293ae5a6e895704c69a4c3" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQ.html#afd13b471df293ae5a6e895704c69a4c3" > faiss::IndexIVFPQ::by_residual< / a > < / div > < div class = "ttdeci" > bool by_residual< / div > < div class = "ttdoc" > Encode residual or plain vector? < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8h_source.html#l00031" > IndexIVFPQ.h:31< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1HeapArray_html_af6aa57addaa1bc754d09a2a08be4df49" > < div class = "ttname" > < a href = "structfaiss_1_1HeapArray.html#af6aa57addaa1bc754d09a2a08be4df49" > faiss::HeapArray::get_ids< / a > < / div > < div class = "ttdeci" > TI * get_ids(size_t key)< / div > < div class = "ttdoc" > Correspponding identifiers. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "Heap_8h_source.html#l00364" > Heap.h:364< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1Index_html_a8e18f641854b2bde83ecff0a2f9a6f4e" > < div class = "ttname" > < a href = "structfaiss_1_1Index.html#a8e18f641854b2bde83ecff0a2f9a6f4e" > faiss::Index::metric_type< / a > < / div > < div class = "ttdeci" > MetricType metric_type< / div > < div class = "ttdoc" > type of metric this index uses for search < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "Index_8h_source.html#l00074" > Index.h:74< / a > < / div > < / div >
2017-04-06 19:33:41 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQCompact_html_ab2698c5d65644a171c53ffe39e420b70a3d58d7b26146791f0fe34b35a9b0fd95" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQCompact.html#ab2698c5d65644a171c53ffe39e420b70a3d58d7b26146791f0fe34b35a9b0fd95" > faiss::IndexIVFPQCompact::Alloc_type_none< / a > < / div > < div class = "ttdoc" > alloc from outside < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8h_source.html#l00254" > IndexIVFPQ.h:254< / a > < / div > < / div >
2017-02-23 06:26:44 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQ_html_a007303be116c8da65b6d058e3fc77d16" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > faiss::IndexIVFPQ::pq< / a > < / div > < div class = "ttdeci" > ProductQuantizer pq< / div > < div class = "ttdoc" > produces the codes < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8h_source.html#l00034" > IndexIVFPQ.h:34< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1ProductQuantizer_html_a83600e328893ce5f41fe459f5a3acf41" > < div class = "ttname" > < a href = "structfaiss_1_1ProductQuantizer.html#a83600e328893ce5f41fe459f5a3acf41" > faiss::ProductQuantizer::M< / a > < / div > < div class = "ttdeci" > size_t M< / div > < div class = "ttdoc" > number of subquantizers < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "ProductQuantizer_8h_source.html#l00029" > ProductQuantizer.h:29< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexIVF_html_ab38fde4c923abefc4185eb7450b5b95b" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVF.html#ab38fde4c923abefc4185eb7450b5b95b" > faiss::IndexIVF::nlist< / a > < / div > < div class = "ttdeci" > size_t nlist< / div > < div class = "ttdoc" > number of possible key values < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVF_8h_source.html#l00047" > IndexIVF.h:47< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1Index_html" > < div class = "ttname" > < a href = "structfaiss_1_1Index.html" > faiss::Index< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "Index_8h_source.html#l00061" > Index.h:61< / a > < / div > < / div >
2017-04-06 19:33:41 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQ_html_a1df10e9e5f4ff0dabf283f19ad94bbd4" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQ.html#a1df10e9e5f4ff0dabf283f19ad94bbd4" > faiss::IndexIVFPQ::reconstruct_n< / a > < / div > < div class = "ttdeci" > virtual void reconstruct_n(idx_t i0, idx_t ni, float *recons) const override< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8cpp_source.html#l00282" > IndexIVFPQ.cpp:282< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQ_html_ac0cb8421b9885d691696d2ff4f76894b" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQ.html#ac0cb8421b9885d691696d2ff4f76894b" > faiss::IndexIVFPQ::add_core_o< / a > < / div > < div class = "ttdeci" > void add_core_o(idx_t n, const float *x, const long *xids, float *residuals_2, const long *precomputed_idx=nullptr)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8cpp_source.html#l00200" > IndexIVFPQ.cpp:200< / a > < / div > < / div >
2017-02-25 00:32:08 +08:00
< div class = "ttc" id = "namespacefaiss_html_a9da63b8bb84460f5e8ccf8e17622cc7a" > < div class = "ttname" > < a href = "namespacefaiss.html#a9da63b8bb84460f5e8ccf8e17622cc7a" > faiss::fvec_madd_and_argmin< / a > < / div > < div class = "ttdeci" > int fvec_madd_and_argmin(size_t n, const float *a, float bf, const float *b, float *c)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "utils_8cpp_source.html#l01781" > utils.cpp:1781< / a > < / div > < / div >
2017-02-23 06:26:44 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQ_html_a31c6fb2faa4dadea4c0594338be7be90" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQ.html#a31c6fb2faa4dadea4c0594338be7be90" > faiss::IndexIVFPQ::code_size< / a > < / div > < div class = "ttdeci" > size_t code_size< / div > < div class = "ttdoc" > code size per vector in bytes < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8h_source.html#l00033" > IndexIVFPQ.h:33< / a > < / div > < / div >
2017-04-06 19:33:41 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQR_html_acc5eeeeb8ac8d2581ef07947932d9f6c" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQR.html#acc5eeeeb8ac8d2581ef07947932d9f6c" > faiss::IndexIVFPQR::remove_ids< / a > < / div > < div class = "ttdeci" > virtual long remove_ids(const IDSelector & sel) override< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8cpp_source.html#l01386" > IndexIVFPQ.cpp:1386< / a > < / div > < / div >
2017-02-23 06:26:44 +08:00
< div class = "ttc" id = "structfaiss_1_1ProductQuantizer_html" > < div class = "ttname" > < a href = "structfaiss_1_1ProductQuantizer.html" > faiss::ProductQuantizer< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "ProductQuantizer_8h_source.html#l00026" > ProductQuantizer.h:26< / a > < / div > < / div >
2017-04-06 19:33:41 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQCompact_html_a8f5eccfb4d5e4098ff6c00acb3bc40a1" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQCompact.html#a8f5eccfb4d5e4098ff6c00acb3bc40a1" > faiss::IndexIVFPQCompact::reset< / a > < / div > < div class = "ttdeci" > virtual void reset() override< / div > < div class = "ttdoc" > removes all elements from the database. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8cpp_source.html#l01473" > IndexIVFPQ.cpp:1473< / a > < / div > < / div >
2017-02-23 06:26:44 +08:00
< div class = "ttc" id = "structfaiss_1_1Index_html_a6e92732617c4dbe364e7678dd8773a7f" > < div class = "ttname" > < a href = "structfaiss_1_1Index.html#a6e92732617c4dbe364e7678dd8773a7f" > faiss::Index::is_trained< / a > < / div > < div class = "ttdeci" > bool is_trained< / div > < div class = "ttdoc" > set if the Index does not require training, or if training is done already < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "Index_8h_source.html#l00071" > Index.h:71< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1ProductQuantizer_html_a4f0f33c011dffe633a1748a48a082c22" > < div class = "ttname" > < a href = "structfaiss_1_1ProductQuantizer.html#a4f0f33c011dffe633a1748a48a082c22" > faiss::ProductQuantizer::get_centroids< / a > < / div > < div class = "ttdeci" > float * get_centroids(size_t m, size_t i)< / div > < div class = "ttdoc" > return the centroids associated with subvector m < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "ProductQuantizer_8h_source.html#l00056" > ProductQuantizer.h:56< / a > < / div > < / div >
2017-04-06 19:33:41 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQCompact_html_ab2698c5d65644a171c53ffe39e420b70acf2d6ba8878a2778383adc32593ba8e6" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQCompact.html#ab2698c5d65644a171c53ffe39e420b70acf2d6ba8878a2778383adc32593ba8e6" > faiss::IndexIVFPQCompact::Alloc_type_new< / a > < / div > < div class = "ttdoc" > was allocated with new < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8h_source.html#l00255" > IndexIVFPQ.h:255< / a > < / div > < / div >
2017-02-23 06:26:44 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexIVF_html_aedd0c14b5654295b291638ec7f9f9517" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVF.html#aedd0c14b5654295b291638ec7f9f9517" > faiss::IndexIVF::maintain_direct_map< / a > < / div > < div class = "ttdeci" > bool maintain_direct_map< / div > < div class = "ttdoc" > map for direct access to the elements. Enables reconstruct(). < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVF_8h_source.html#l00059" > IndexIVF.h:59< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1PolysemousTraining_html_a995374ba2f0bc2738edae72ca9142f82" > < div class = "ttname" > < a href = "structfaiss_1_1PolysemousTraining.html#a995374ba2f0bc2738edae72ca9142f82" > faiss::PolysemousTraining::optimize_pq_for_hamming< / a > < / div > < div class = "ttdeci" > void optimize_pq_for_hamming(ProductQuantizer & pq, size_t n, const float *x) const < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "PolysemousTraining_8cpp_source.html#l00945" > PolysemousTraining.cpp:945< / a > < / div > < / div >
2017-03-21 01:33:21 +08:00
< div class = "ttc" id = "structfaiss_1_1ClusteringParameters_html_a993e0a035248faad6e292a5ef9af1953" > < div class = "ttname" > < a href = "structfaiss_1_1ClusteringParameters.html#a993e0a035248faad6e292a5ef9af1953" > faiss::ClusteringParameters::max_points_per_centroid< / a > < / div > < div class = "ttdeci" > int max_points_per_centroid< / div > < div class = "ttdoc" > to limit size of dataset < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "Clustering_8h_source.html#l00034" > Clustering.h:34< / a > < / div > < / div >
2017-02-23 06:26:44 +08:00
< div class = "ttc" id = "structfaiss_1_1ProductQuantizer_html_a1e4056fa3938ed8c9fe701e90d94ad95" > < div class = "ttname" > < a href = "structfaiss_1_1ProductQuantizer.html#a1e4056fa3938ed8c9fe701e90d94ad95" > faiss::ProductQuantizer::verbose< / a > < / div > < div class = "ttdeci" > bool verbose< / div > < div class = "ttdoc" > verbose during training? < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "ProductQuantizer_8h_source.html#l00037" > ProductQuantizer.h:37< / a > < / div > < / div >
2017-04-06 19:33:41 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQR_html_a4b6154a5194d574d037ba78c137a2fa5" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQR.html#a4b6154a5194d574d037ba78c137a2fa5" > faiss::IndexIVFPQR::add_with_ids< / a > < / div > < div class = "ttdeci" > virtual void add_with_ids(idx_t n, const float *x, const long *xids) override< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8cpp_source.html#l01250" > IndexIVFPQ.cpp:1250< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQR_html_a3e982ee6f1a3a025148270701867d04f" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQR.html#a3e982ee6f1a3a025148270701867d04f" > faiss::IndexIVFPQR::search< / a > < / div > < div class = "ttdeci" > virtual void search(idx_t n, const float *x, idx_t k, float *distances, idx_t *labels) const override< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8cpp_source.html#l01273" > IndexIVFPQ.cpp:1273< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQ_html_afa7c9a7ae0316d2a05acb60ab2b7a31a" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQ.html#afa7c9a7ae0316d2a05acb60ab2b7a31a" > faiss::IndexIVFPQ::search< / a > < / div > < div class = "ttdeci" > virtual void search(idx_t n, const float *x, idx_t k, float *distances, idx_t *labels) const override< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8cpp_source.html#l01069" > IndexIVFPQ.cpp:1069< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQ_html_aee355b57acde203a3caed46a93e16a3c" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQ.html#aee355b57acde203a3caed46a93e16a3c" > faiss::IndexIVFPQ::find_duplicates< / a > < / div > < div class = "ttdeci" > size_t find_duplicates(idx_t *ids, size_t *lims) const < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8cpp_source.html#l01154" > IndexIVFPQ.cpp:1154< / a > < / div > < / div >
2017-02-23 06:26:44 +08:00
< div class = "ttc" id = "namespacefaiss_html_afd12191c638da74760ff397cf319752c" > < div class = "ttname" > < a href = "namespacefaiss.html#afd12191c638da74760ff397cf319752c" > faiss::MetricType< / a > < / div > < div class = "ttdeci" > MetricType< / div > < div class = "ttdoc" > Some algorithms support both an inner product vetsion and a L2 search version. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "Index_8h_source.html#l00044" > Index.h:44< / a > < / div > < / div >
2017-04-06 19:33:41 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQR_html_a0b02a4151ceacc070352f8b15cc0ee0b" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQR.html#a0b02a4151ceacc070352f8b15cc0ee0b" > faiss::IndexIVFPQR::k_factor< / a > < / div > < div class = "ttdeci" > float k_factor< / div > < div class = "ttdoc" > factor between k requested in search and the k requested from the IVFPQ < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8h_source.html#l00207" > IndexIVFPQ.h:207< / a > < / div > < / div >
2017-02-23 06:26:44 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQ_html_a1c66ff073c18a1edbe8444c24d870583" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQ.html#a1c66ff073c18a1edbe8444c24d870583" > faiss::IndexIVFPQ::use_precomputed_table< / a > < / div > < div class = "ttdeci" > int use_precomputed_table< / div > < div class = "ttdoc" > if by_residual, build precompute tables < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8h_source.html#l00032" > IndexIVFPQ.h:32< / a > < / div > < / div >
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