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< title > Faiss: /tmp/faiss/tests/test_merge.cpp Source File< / title >
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< div class = "line" > < a name = "l00005" > < / a > < span class = "lineno" > 5< / span >   < span class = "comment" > * This source code is licensed under the BSD+Patents license found in the< / span > < / div >
< div class = "line" > < a name = "l00006" > < / a > < span class = "lineno" > 6< / span >   < span class = "comment" > * LICENSE file in the root directory of this source tree.< / span > < / div >
< div class = "line" > < a name = "l00007" > < / a > < span class = "lineno" > 7< / span >   < span class = "comment" > */< / span > < / div >
< div class = "line" > < a name = "l00008" > < / a > < span class = "lineno" > 8< / span >   < / div >
< div class = "line" > < a name = "l00009" > < / a > < span class = "lineno" > 9< / span >   < span class = "preprocessor" > #include < cstdio> < / span > < / div >
< div class = "line" > < a name = "l00010" > < / a > < span class = "lineno" > 10< / span >   < span class = "preprocessor" > #include < cstdlib> < / span > < / div >
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< div class = "line" > < a name = "l00012" > < / a > < span class = "lineno" > 12< / span >   < span class = "preprocessor" > #include < gtest/gtest.h> < / span > < / div >
< div class = "line" > < a name = "l00013" > < / a > < span class = "lineno" > 13< / span >   < / div >
< div class = "line" > < a name = "l00014" > < / a > < span class = "lineno" > 14< / span >   < span class = "preprocessor" > #include < faiss/IndexIVFFlat.h> < / span > < / div >
< div class = "line" > < a name = "l00015" > < / a > < span class = "lineno" > 15< / span >   < span class = "preprocessor" > #include < faiss/IndexIVFPQ.h> < / span > < / div >
< div class = "line" > < a name = "l00016" > < / a > < span class = "lineno" > 16< / span >   < span class = "preprocessor" > #include < faiss/IndexFlat.h> < / span > < / div >
< div class = "line" > < a name = "l00017" > < / a > < span class = "lineno" > 17< / span >   < span class = "preprocessor" > #include < faiss/MetaIndexes.h> < / span > < / div >
< div class = "line" > < a name = "l00018" > < / a > < span class = "lineno" > 18< / span >   < span class = "preprocessor" > #include < faiss/FaissAssert.h> < / span > < / div >
< div class = "line" > < a name = "l00019" > < / a > < span class = "lineno" > 19< / span >   < span class = "preprocessor" > #include < faiss/VectorTransform.h> < / span > < / div >
< div class = "line" > < a name = "l00020" > < / a > < span class = "lineno" > 20< / span >   < span class = "preprocessor" > #include < faiss/OnDiskInvertedLists.h> < / span > < / div >
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< div class = "line" > < a name = "l00021" > < / a > < span class = "lineno" > 21< / span >   < span class = "preprocessor" > #include < faiss/IVFlib.h> < / span > < / div >
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< div class = "line" > < a name = "l00022" > < / a > < span class = "lineno" > 22< / span >   < / div >
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< 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 = "keyword" > namespace < / span > {< / div >
< div class = "line" > < a name = "l00025" > < / a > < span class = "lineno" > 25< / span >   < / div >
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< div class = "line" > < a name = "l00026" > < / a > < span class = "lineno" > 26< / span >   < / div >
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< div class = "line" > < a name = "l00027" > < / a > < span class = "lineno" > 27< / span >   < span class = "keyword" > struct < / span > Tempfilename {< / div >
< div class = "line" > < a name = "l00028" > < / a > < span class = "lineno" > 28< / span >   < / div >
< div class = "line" > < a name = "l00029" > < / a > < span class = "lineno" > 29< / span >   < span class = "keyword" > static< / span > pthread_mutex_t mutex;< / div >
< div class = "line" > < a name = "l00030" > < / a > < span class = "lineno" > 30< / span >   < / div >
< div class = "line" > < a name = "l00031" > < / a > < span class = "lineno" > 31< / span >   std::string filename;< / div >
< div class = "line" > < a name = "l00032" > < / a > < span class = "lineno" > 32< / span >   < / div >
< div class = "line" > < a name = "l00033" > < / a > < span class = "lineno" > 33< / span >   Tempfilename (< span class = "keyword" > const< / span > < span class = "keywordtype" > char< / span > *prefix = < span class = "keyword" > nullptr< / span > ) {< / div >
< div class = "line" > < a name = "l00034" > < / a > < span class = "lineno" > 34< / span >   pthread_mutex_lock (& mutex);< / div >
< div class = "line" > < a name = "l00035" > < / a > < span class = "lineno" > 35< / span >   < span class = "keywordtype" > char< / span > *cfname = tempnam (< span class = "keyword" > nullptr< / span > , prefix);< / div >
< div class = "line" > < a name = "l00036" > < / a > < span class = "lineno" > 36< / span >   filename = cfname;< / div >
< div class = "line" > < a name = "l00037" > < / a > < span class = "lineno" > 37< / span >   free(cfname);< / div >
< div class = "line" > < a name = "l00038" > < / a > < span class = "lineno" > 38< / span >   pthread_mutex_unlock (& mutex);< / 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 >
< div class = "line" > < a name = "l00041" > < / a > < span class = "lineno" > 41< / span >   ~Tempfilename () {< / div >
< div class = "line" > < a name = "l00042" > < / a > < span class = "lineno" > 42< / span >   < span class = "keywordflow" > if< / span > (access (filename.c_str(), F_OK)) {< / div >
< div class = "line" > < a name = "l00043" > < / a > < span class = "lineno" > 43< / span >   unlink (filename.c_str());< / div >
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< div class = "line" > < a name = "l00044" > < / a > < span class = "lineno" > 44< / span >   }< / div >
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< 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 >   < / div >
< div class = "line" > < a name = "l00047" > < / a > < span class = "lineno" > 47< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > char< / span > *c_str() {< / div >
< div class = "line" > < a name = "l00048" > < / a > < span class = "lineno" > 48< / span >   < span class = "keywordflow" > return< / span > filename.c_str();< / div >
< div class = "line" > < a name = "l00049" > < / a > < span class = "lineno" > 49< / span >   }< / 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 >   };< / div >
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< div class = "line" > < a name = "l00052" > < / a > < span class = "lineno" > 52< / span >   < / div >
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< div class = "line" > < a name = "l00053" > < / a > < span class = "lineno" > 53< / span >   pthread_mutex_t Tempfilename::mutex = PTHREAD_MUTEX_INITIALIZER;< / div >
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< div class = "line" > < a name = "l00054" > < / a > < span class = "lineno" > 54< / span >   < / div >
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< div class = "line" > < a name = "l00055" > < / a > < span class = "lineno" > 55< / span >   < / div >
< div class = "line" > < a name = "l00056" > < / a > < span class = "lineno" > 56< / span >   < span class = "comment" > // parameters to use for the test< / span > < / div >
< div class = "line" > < a name = "l00057" > < / a > < span class = "lineno" > 57< / span >   < span class = "keywordtype" > int< / span > d = 64;< / div >
< div class = "line" > < a name = "l00058" > < / a > < span class = "lineno" > 58< / span >   < span class = "keywordtype" > size_t< / span > nb = 1000;< / div >
< div class = "line" > < a name = "l00059" > < / a > < span class = "lineno" > 59< / span >   < span class = "keywordtype" > size_t< / span > nq = 100;< / div >
< div class = "line" > < a name = "l00060" > < / a > < span class = "lineno" > 60< / span >   < span class = "keywordtype" > int< / span > nindex = 4;< / div >
< div class = "line" > < a name = "l00061" > < / a > < span class = "lineno" > 61< / span >   < span class = "keywordtype" > int< / span > k = 10;< / div >
< div class = "line" > < a name = "l00062" > < / a > < span class = "lineno" > 62< / span >   < span class = "keywordtype" > int< / span > nlist = 40;< / 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 >   < span class = "keyword" > typedef< / span > < a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > faiss::Index::idx_t< / a > idx_t;< / div >
< div class = "line" > < a name = "l00065" > < / a > < span class = "lineno" > 65< / span >   < / div >
< div class = "line" > < a name = "l00066" > < / a > < span class = "lineno" > 66< / span >   < span class = "keyword" > struct < / span > CommonData {< / div >
< div class = "line" > < a name = "l00067" > < / a > < span class = "lineno" > 67< / span >   < / div >
< div class = "line" > < a name = "l00068" > < / a > < span class = "lineno" > 68< / span >   std::vector < float> database;< / div >
< div class = "line" > < a name = "l00069" > < / a > < span class = "lineno" > 69< / span >   std::vector < float> queries;< / div >
< div class = "line" > < a name = "l00070" > < / a > < span class = "lineno" > 70< / span >   std::vector< idx_t> ids;< / div >
< div class = "line" > < a name = "l00071" > < / a > < span class = "lineno" > 71< / span >   < a class = "code" href = "structfaiss_1_1IndexFlatL2.html" > faiss::IndexFlatL2< / a > quantizer;< / div >
< div class = "line" > < a name = "l00072" > < / a > < span class = "lineno" > 72< / span >   < / div >
< div class = "line" > < a name = "l00073" > < / a > < span class = "lineno" > 73< / span >   CommonData(): database (nb * d), queries (nq * d), ids(nb), quantizer (d) {< / div >
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< div class = "line" > < a name = "l00074" > < / a > < span class = "lineno" > 74< / span >   < / div >
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< div class = "line" > < a name = "l00075" > < / a > < span class = "lineno" > 75< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > size_t< / span > i = 0; i < nb * d; i++) {< / div >
< div class = "line" > < a name = "l00076" > < / a > < span class = "lineno" > 76< / span >   database[i] = drand48();< / div >
< div class = "line" > < a name = "l00077" > < / a > < span class = "lineno" > 77< / span >   }< / div >
< div class = "line" > < a name = "l00078" > < / a > < span class = "lineno" > 78< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > size_t< / span > i = 0; i < nq * d; i++) {< / div >
< div class = "line" > < a name = "l00079" > < / a > < span class = "lineno" > 79< / span >   queries[i] = drand48();< / div >
< div class = "line" > < a name = "l00080" > < / a > < span class = "lineno" > 80< / span >   }< / div >
< div class = "line" > < a name = "l00081" > < / a > < span class = "lineno" > 81< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > i = 0; i < nb; i++) {< / div >
< div class = "line" > < a name = "l00082" > < / a > < span class = "lineno" > 82< / span >   ids[i] = 123 + 456 * i;< / div >
< div class = "line" > < a name = "l00083" > < / a > < span class = "lineno" > 83< / span >   }< / div >
< div class = "line" > < a name = "l00084" > < / a > < span class = "lineno" > 84< / span >   { < span class = "comment" > // just to train the quantizer< / span > < / div >
< div class = "line" > < a name = "l00085" > < / a > < span class = "lineno" > 85< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFFlat.html" > faiss::IndexIVFFlat< / a > iflat (& quantizer, d, nlist);< / div >
< div class = "line" > < a name = "l00086" > < / a > < span class = "lineno" > 86< / span >   iflat.train(nb, database.data());< / 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 >   }< / div >
< div class = "line" > < a name = "l00089" > < / a > < span class = "lineno" > 89< / span >   };< / div >
< div class = "line" > < a name = "l00090" > < / a > < span class = "lineno" > 90< / span >   < / div >
< div class = "line" > < a name = "l00091" > < / a > < span class = "lineno" > 91< / span >   CommonData cd;< / div >
< div class = "line" > < a name = "l00092" > < / a > < span class = "lineno" > 92< / span >   < span class = "comment" > < / span > < / div >
< div class = "line" > < a name = "l00093" > < / a > < span class = "lineno" > 93< / span >   < span class = "comment" > /// perform a search on shards, then merge and search again and< / span > < / div >
< div class = "line" > < a name = "l00094" > < / a > < span class = "lineno" > 94< / span >   < span class = "comment" > /// compare results.< / span > < / div >
< div class = "line" > < a name = "l00095" > < / a > < span class = "lineno" > 95< / span >   < span class = "comment" > < / span > < span class = "keywordtype" > int< / span > compare_merged (< a class = "code" href = "structfaiss_1_1IndexShards.html" > faiss::IndexShards< / a > *index_shards, < span class = "keywordtype" > bool< / span > shift_ids,< / div >
< div class = "line" > < a name = "l00096" > < / a > < span class = "lineno" > 96< / span >   < span class = "keywordtype" > bool< / span > standard_merge = < span class = "keyword" > true< / span > )< / div >
< div class = "line" > < a name = "l00097" > < / a > < span class = "lineno" > 97< / span >   {< / div >
< div class = "line" > < a name = "l00098" > < / a > < span class = "lineno" > 98< / span >   < / div >
< div class = "line" > < a name = "l00099" > < / a > < span class = "lineno" > 99< / span >   std::vector< idx_t> refI(k * nq);< / div >
< div class = "line" > < a name = "l00100" > < / a > < span class = "lineno" > 100< / span >   std::vector< float> refD(k * nq);< / div >
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< div class = "line" > < a name = "l00101" > < / a > < span class = "lineno" > 101< / span >   < / div >
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< div class = "line" > < a name = "l00102" > < / a > < span class = "lineno" > 102< / span >   index_shards-> < a class = "code" href = "structfaiss_1_1IndexShards.html#a83391295650370e8987358a898bb2cca" > search< / a > (nq, cd.queries.data(), k, refD.data(), refI.data());< / div >
< div class = "line" > < a name = "l00103" > < / a > < span class = "lineno" > 103< / span >   Tempfilename filename;< / 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 >   std::vector< idx_t> newI(k * nq);< / div >
< div class = "line" > < a name = "l00106" > < / a > < span class = "lineno" > 106< / span >   std::vector< float> newD(k * nq);< / div >
< div class = "line" > < a name = "l00107" > < / a > < span class = "lineno" > 107< / span >   < / div >
< div class = "line" > < a name = "l00108" > < / a > < span class = "lineno" > 108< / span >   < span class = "keywordflow" > if< / span > (standard_merge) {< / div >
< div class = "line" > < a name = "l00109" > < / a > < span class = "lineno" > 109< / span >   < / div >
< div class = "line" > < a name = "l00110" > < / a > < span class = "lineno" > 110< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > i = 1; i < nindex; i++) {< / div >
< div class = "line" > < a name = "l00111" > < / a > < span class = "lineno" > 111< / span >   faiss::ivflib::merge_into(< / div >
< div class = "line" > < a name = "l00112" > < / a > < span class = "lineno" > 112< / span >   index_shards-> at(0), index_shards-> at(i),< / div >
< div class = "line" > < a name = "l00113" > < / a > < span class = "lineno" > 113< / span >   shift_ids);< / div >
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< div class = "line" > < a name = "l00114" > < / a > < span class = "lineno" > 114< / span >   }< / div >
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< div class = "line" > < a name = "l00115" > < / a > < span class = "lineno" > 115< / span >   < / div >
< div class = "line" > < a name = "l00116" > < / a > < span class = "lineno" > 116< / span >   index_shards-> sync_with_shard_indexes();< / div >
< div class = "line" > < a name = "l00117" > < / a > < span class = "lineno" > 117< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00118" > < / a > < span class = "lineno" > 118< / span >   std::vector< const faiss::InvertedLists *> lists;< / div >
< div class = "line" > < a name = "l00119" > < / a > < span class = "lineno" > 119< / span >   < a class = "code" href = "structfaiss_1_1IndexIVF.html" > faiss::IndexIVF< / a > *index0 = < span class = "keyword" > nullptr< / span > ;< / div >
< div class = "line" > < a name = "l00120" > < / a > < span class = "lineno" > 120< / span >   < span class = "keywordtype" > size_t< / span > ntotal = 0;< / div >
< div class = "line" > < a name = "l00121" > < / a > < span class = "lineno" > 121< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > i = 0; i < nindex; i++) {< / div >
< div class = "line" > < a name = "l00122" > < / a > < span class = "lineno" > 122< / span >   < span class = "keyword" > auto< / span > index_ivf = < span class = "keyword" > dynamic_cast< < / span > < a class = "code" href = "structfaiss_1_1IndexIVF.html" > faiss::IndexIVF< / a > *< span class = "keyword" > > < / span > (index_shards-> at(i));< / div >
< div class = "line" > < a name = "l00123" > < / a > < span class = "lineno" > 123< / span >   assert (index_ivf);< / div >
< div class = "line" > < a name = "l00124" > < / a > < span class = "lineno" > 124< / span >   < span class = "keywordflow" > if< / span > (i == 0) {< / div >
< div class = "line" > < a name = "l00125" > < / a > < span class = "lineno" > 125< / span >   index0 = index_ivf;< / div >
< div class = "line" > < a name = "l00126" > < / a > < span class = "lineno" > 126< / span >   }< / div >
< div class = "line" > < a name = "l00127" > < / a > < span class = "lineno" > 127< / span >   lists.push_back (index_ivf-> invlists);< / div >
< div class = "line" > < a name = "l00128" > < / a > < span class = "lineno" > 128< / span >   ntotal += index_ivf-> < a class = "code" href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > ntotal< / a > ;< / 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" > auto< / span > il = < span class = "keyword" > new< / span > < a class = "code" href = "structfaiss_1_1OnDiskInvertedLists.html" > faiss::OnDiskInvertedLists< / a > (< / div >
< div class = "line" > < a name = "l00132" > < / a > < span class = "lineno" > 132< / span >   index0-> < a class = "code" href = "structfaiss_1_1Level1Quantizer.html#a1c4fc9d874d9492ee0ea27a5be388fa7" > nlist< / a > , index0-> < a class = "code" href = "structfaiss_1_1IndexIVF.html#a46d1aeddb60643c5b3f096147c3e028f" > code_size< / a > ,< / div >
< div class = "line" > < a name = "l00133" > < / a > < span class = "lineno" > 133< / span >   filename.c_str());< / div >
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< div class = "line" > < a name = "l00134" > < / a > < span class = "lineno" > 134< / span >   < / div >
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< div class = "line" > < a name = "l00135" > < / a > < span class = "lineno" > 135< / span >   il-> merge_from(lists.data(), lists.size());< / div >
< div class = "line" > < a name = "l00136" > < / a > < span class = "lineno" > 136< / span >   < / div >
< div class = "line" > < a name = "l00137" > < / a > < span class = "lineno" > 137< / span >   index0-> < a class = "code" href = "structfaiss_1_1IndexIVF.html#a4eb943aeb7df30d44ad9b665452bfcf7" > replace_invlists< / a > (il, < span class = "keyword" > true< / span > );< / div >
< div class = "line" > < a name = "l00138" > < / a > < span class = "lineno" > 138< / span >   index0-> < a class = "code" href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > ntotal< / a > = ntotal;< / div >
< div class = "line" > < a name = "l00139" > < / a > < span class = "lineno" > 139< / span >   }< / div >
< div class = "line" > < a name = "l00140" > < / a > < span class = "lineno" > 140< / span >   < span class = "comment" > // search only on first index< / span > < / div >
< div class = "line" > < a name = "l00141" > < / a > < span class = "lineno" > 141< / span >   index_shards-> at(0)-> < a class = "code" href = "structfaiss_1_1Index.html#aced51b1ebc33c47ab3ae15ea906559a7" > search< / a > (nq, cd.queries.data(),< / div >
< div class = "line" > < a name = "l00142" > < / a > < span class = "lineno" > 142< / span >   k, newD.data(), newI.data());< / div >
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< div class = "line" > < a name = "l00143" > < / a > < span class = "lineno" > 143< / span >   < / div >
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< div class = "line" > < a name = "l00144" > < / a > < span class = "lineno" > 144< / span >   < span class = "keywordtype" > size_t< / span > ndiff = 0;< / div >
< div class = "line" > < a name = "l00145" > < / a > < span class = "lineno" > 145< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > size_t< / span > i = 0; i < k * nq; i++) {< / div >
< div class = "line" > < a name = "l00146" > < / a > < span class = "lineno" > 146< / span >   < span class = "keywordflow" > if< / span > (refI[i] != newI[i]) {< / div >
< div class = "line" > < a name = "l00147" > < / a > < span class = "lineno" > 147< / span >   ndiff ++;< / div >
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< div class = "line" > < a name = "l00148" > < / a > < span class = "lineno" > 148< / span >   }< / div >
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< div class = "line" > < a name = "l00149" > < / a > < span class = "lineno" > 149< / span >   }< / div >
< div class = "line" > < a name = "l00150" > < / a > < span class = "lineno" > 150< / span >   < span class = "keywordflow" > return< / span > ndiff;< / div >
< div class = "line" > < a name = "l00151" > < / a > < span class = "lineno" > 151< / span >   }< / div >
< div class = "line" > < a name = "l00152" > < / a > < span class = "lineno" > 152< / span >   < / div >
< div class = "line" > < a name = "l00153" > < / a > < span class = "lineno" > 153< / span >   } < span class = "comment" > // namespace< / 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 >   < span class = "comment" > // test on IVFFlat with implicit numbering< / span > < / div >
< div class = "line" > < a name = "l00157" > < / a > < span class = "lineno" > 157< / span >   TEST(MERGE, merge_flat_no_ids) {< / div >
< div class = "line" > < a name = "l00158" > < / a > < span class = "lineno" > 158< / span >   < a class = "code" href = "structfaiss_1_1IndexShards.html" > faiss::IndexShards< / a > index_shards(d);< / div >
< div class = "line" > < a name = "l00159" > < / a > < span class = "lineno" > 159< / span >   index_shards.own_fields = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00160" > < / a > < span class = "lineno" > 160< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > i = 0; i < nindex; i++) {< / div >
< div class = "line" > < a name = "l00161" > < / a > < span class = "lineno" > 161< / span >   index_shards.add_shard (< / div >
< div class = "line" > < a name = "l00162" > < / a > < span class = "lineno" > 162< / span >   < span class = "keyword" > new< / span > < a class = "code" href = "structfaiss_1_1IndexIVFFlat.html" > faiss::IndexIVFFlat< / a > (& cd.quantizer, d, nlist));< / div >
< div class = "line" > < a name = "l00163" > < / a > < span class = "lineno" > 163< / span >   }< / div >
< div class = "line" > < a name = "l00164" > < / a > < span class = "lineno" > 164< / span >   EXPECT_TRUE(index_shards.< a class = "code" href = "structfaiss_1_1Index.html#a6e92732617c4dbe364e7678dd8773a7f" > is_trained< / a > );< / div >
< div class = "line" > < a name = "l00165" > < / a > < span class = "lineno" > 165< / span >   index_shards.< a class = "code" href = "structfaiss_1_1IndexShards.html#a2e06889521c566525011eb46cc97cda6" > add< / a > (nb, cd.database.data());< / div >
< div class = "line" > < a name = "l00166" > < / a > < span class = "lineno" > 166< / span >   < span class = "keywordtype" > size_t< / span > prev_ntotal = index_shards.< a class = "code" href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > ntotal< / a > ;< / div >
< div class = "line" > < a name = "l00167" > < / a > < span class = "lineno" > 167< / span >   < span class = "keywordtype" > int< / span > ndiff = compare_merged(& index_shards, < span class = "keyword" > true< / span > );< / div >
< div class = "line" > < a name = "l00168" > < / a > < span class = "lineno" > 168< / span >   EXPECT_EQ (prev_ntotal, index_shards.< a class = "code" href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > ntotal< / a > );< / div >
< div class = "line" > < a name = "l00169" > < / a > < span class = "lineno" > 169< / span >   EXPECT_EQ(0, ndiff);< / div >
< div class = "line" > < a name = "l00170" > < / a > < span class = "lineno" > 170< / span >   }< / div >
< div class = "line" > < a name = "l00171" > < / a > < span class = "lineno" > 171< / span >   < / div >
< div class = "line" > < a name = "l00172" > < / a > < span class = "lineno" > 172< / span >   < / div >
< div class = "line" > < a name = "l00173" > < / a > < span class = "lineno" > 173< / span >   < span class = "comment" > // test on IVFFlat, explicit ids< / span > < / div >
< div class = "line" > < a name = "l00174" > < / a > < span class = "lineno" > 174< / span >   TEST(MERGE, merge_flat) {< / div >
< div class = "line" > < a name = "l00175" > < / a > < span class = "lineno" > 175< / span >   < a class = "code" href = "structfaiss_1_1IndexShards.html" > faiss::IndexShards< / a > index_shards(d, < span class = "keyword" > false< / span > , < span class = "keyword" > false< / span > );< / div >
< div class = "line" > < a name = "l00176" > < / a > < span class = "lineno" > 176< / span >   index_shards.own_fields = < span class = "keyword" > true< / span > ;< / div >
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< div class = "line" > < a name = "l00177" > < / a > < span class = "lineno" > 177< / span >   < / div >
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< div class = "line" > < a name = "l00178" > < / a > < span class = "lineno" > 178< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > i = 0; i < nindex; i++) {< / div >
< div class = "line" > < a name = "l00179" > < / a > < span class = "lineno" > 179< / span >   index_shards.add_shard (< / div >
< div class = "line" > < a name = "l00180" > < / a > < span class = "lineno" > 180< / span >   < span class = "keyword" > new< / span > < a class = "code" href = "structfaiss_1_1IndexIVFFlat.html" > faiss::IndexIVFFlat< / a > (& cd.quantizer, d, nlist));< / div >
< div class = "line" > < a name = "l00181" > < / a > < span class = "lineno" > 181< / span >   }< / div >
< div class = "line" > < a name = "l00182" > < / a > < span class = "lineno" > 182< / span >   < / div >
< div class = "line" > < a name = "l00183" > < / a > < span class = "lineno" > 183< / span >   EXPECT_TRUE(index_shards.< a class = "code" href = "structfaiss_1_1Index.html#a6e92732617c4dbe364e7678dd8773a7f" > is_trained< / a > );< / div >
< div class = "line" > < a name = "l00184" > < / a > < span class = "lineno" > 184< / span >   index_shards.< a class = "code" href = "structfaiss_1_1IndexShards.html#a1f771d50133494f682f05c9ab9e39ad9" > add_with_ids< / a > (nb, cd.database.data(), cd.ids.data());< / div >
< div class = "line" > < a name = "l00185" > < / a > < span class = "lineno" > 185< / span >   < span class = "keywordtype" > int< / span > ndiff = compare_merged(& index_shards, < span class = "keyword" > false< / span > );< / div >
< div class = "line" > < a name = "l00186" > < / a > < span class = "lineno" > 186< / span >   EXPECT_GE(0, ndiff);< / div >
< div class = "line" > < a name = "l00187" > < / a > < span class = "lineno" > 187< / span >   }< / 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 >   < span class = "comment" > // test on IVFFlat and a VectorTransform< / span > < / div >
< div class = "line" > < a name = "l00190" > < / a > < span class = "lineno" > 190< / span >   TEST(MERGE, merge_flat_vt) {< / div >
< div class = "line" > < a name = "l00191" > < / a > < span class = "lineno" > 191< / span >   < a class = "code" href = "structfaiss_1_1IndexShards.html" > faiss::IndexShards< / a > index_shards(d, < span class = "keyword" > false< / span > , < span class = "keyword" > false< / span > );< / div >
< div class = "line" > < a name = "l00192" > < / a > < span class = "lineno" > 192< / span >   index_shards.own_fields = < span class = "keyword" > true< / 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" > 194< / span >   < span class = "comment" > // here we have to retrain because of the vectorTransform< / span > < / div >
< div class = "line" > < a name = "l00195" > < / a > < span class = "lineno" > 195< / span >   < a class = "code" href = "structfaiss_1_1RandomRotationMatrix.html" > faiss::RandomRotationMatrix< / a > rot(d, d);< / div >
< div class = "line" > < a name = "l00196" > < / a > < span class = "lineno" > 196< / span >   rot.init(1234);< / div >
< div class = "line" > < a name = "l00197" > < / a > < span class = "lineno" > 197< / span >   < a class = "code" href = "structfaiss_1_1IndexFlatL2.html" > faiss::IndexFlatL2< / a > quantizer (d);< / div >
< div class = "line" > < a name = "l00198" > < / a > < span class = "lineno" > 198< / span >   < / div >
< div class = "line" > < a name = "l00199" > < / a > < span class = "lineno" > 199< / span >   { < span class = "comment" > // just to train the quantizer< / span > < / div >
< div class = "line" > < a name = "l00200" > < / a > < span class = "lineno" > 200< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFFlat.html" > faiss::IndexIVFFlat< / a > iflat (& quantizer, d, nlist);< / div >
< div class = "line" > < a name = "l00201" > < / a > < span class = "lineno" > 201< / span >   < a class = "code" href = "structfaiss_1_1IndexPreTransform.html" > faiss::IndexPreTransform< / a > ipt (& rot, & iflat);< / div >
< div class = "line" > < a name = "l00202" > < / a > < span class = "lineno" > 202< / span >   ipt.train(nb, cd.database.data());< / div >
< div class = "line" > < a name = "l00203" > < / a > < span class = "lineno" > 203< / span >   }< / div >
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< div class = "line" > < a name = "l00204" > < / a > < span class = "lineno" > 204< / span >   < / div >
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< div class = "line" > < a name = "l00205" > < / a > < span class = "lineno" > 205< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > i = 0; i < nindex; i++) {< / div >
< div class = "line" > < a name = "l00206" > < / a > < span class = "lineno" > 206< / span >   < a class = "code" href = "structfaiss_1_1IndexPreTransform.html" > faiss::IndexPreTransform< / a > * ipt = < span class = "keyword" > new< / span > < a class = "code" href = "structfaiss_1_1IndexPreTransform.html" > faiss::IndexPreTransform< / a > (< / div >
< div class = "line" > < a name = "l00207" > < / a > < span class = "lineno" > 207< / span >   < span class = "keyword" > new< / span > < a class = "code" href = "structfaiss_1_1RandomRotationMatrix.html" > faiss::RandomRotationMatrix< / a > (rot),< / div >
< div class = "line" > < a name = "l00208" > < / a > < span class = "lineno" > 208< / span >   < span class = "keyword" > new< / span > < a class = "code" href = "structfaiss_1_1IndexIVFFlat.html" > faiss::IndexIVFFlat< / a > (& quantizer, d, nlist)< / div >
< div class = "line" > < a name = "l00209" > < / a > < span class = "lineno" > 209< / span >   );< / div >
< div class = "line" > < a name = "l00210" > < / a > < span class = "lineno" > 210< / span >   ipt-> < a class = "code" href = "structfaiss_1_1IndexPreTransform.html#ae5ec3f184eb211e7d6e204082b52c8c0" > own_fields< / a > = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00211" > < / a > < span class = "lineno" > 211< / span >   index_shards.add_shard (ipt);< / div >
< div class = "line" > < a name = "l00212" > < / a > < span class = "lineno" > 212< / span >   }< / div >
< div class = "line" > < a name = "l00213" > < / a > < span class = "lineno" > 213< / span >   EXPECT_TRUE(index_shards.< a class = "code" href = "structfaiss_1_1Index.html#a6e92732617c4dbe364e7678dd8773a7f" > is_trained< / a > );< / div >
< div class = "line" > < a name = "l00214" > < / a > < span class = "lineno" > 214< / span >   index_shards.< a class = "code" href = "structfaiss_1_1IndexShards.html#a1f771d50133494f682f05c9ab9e39ad9" > add_with_ids< / a > (nb, cd.database.data(), cd.ids.data());< / div >
< div class = "line" > < a name = "l00215" > < / a > < span class = "lineno" > 215< / span >   < span class = "keywordtype" > size_t< / span > prev_ntotal = index_shards.< a class = "code" href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > ntotal< / a > ;< / div >
< div class = "line" > < a name = "l00216" > < / a > < span class = "lineno" > 216< / span >   < span class = "keywordtype" > int< / span > ndiff = compare_merged(& index_shards, < span class = "keyword" > false< / span > );< / div >
< div class = "line" > < a name = "l00217" > < / a > < span class = "lineno" > 217< / span >   EXPECT_EQ (prev_ntotal, index_shards.< a class = "code" href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > ntotal< / a > );< / div >
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< div class = "line" > < a name = "l00218" > < / a > < span class = "lineno" > 218< / span >   EXPECT_GE(0, ndiff);< / 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 >   < / div >
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< div class = "line" > < a name = "l00221" > < / a > < span class = "lineno" > 221< / span >   < / div >
< div class = "line" > < a name = "l00222" > < / a > < span class = "lineno" > 222< / span >   < span class = "comment" > // put the merged invfile on disk< / span > < / div >
< div class = "line" > < a name = "l00223" > < / a > < span class = "lineno" > 223< / span >   TEST(MERGE, merge_flat_ondisk) {< / div >
< div class = "line" > < a name = "l00224" > < / a > < span class = "lineno" > 224< / span >   < a class = "code" href = "structfaiss_1_1IndexShards.html" > faiss::IndexShards< / a > index_shards(d, < span class = "keyword" > false< / span > , < span class = "keyword" > false< / span > );< / div >
< div class = "line" > < a name = "l00225" > < / a > < span class = "lineno" > 225< / span >   index_shards.own_fields = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00226" > < / a > < span class = "lineno" > 226< / span >   Tempfilename filename;< / div >
< div class = "line" > < a name = "l00227" > < / a > < span class = "lineno" > 227< / span >   < / div >
< div class = "line" > < a name = "l00228" > < / a > < span class = "lineno" > 228< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > i = 0; i < nindex; i++) {< / div >
< div class = "line" > < a name = "l00229" > < / a > < span class = "lineno" > 229< / span >   < span class = "keyword" > auto< / span > ivf = < span class = "keyword" > new< / span > < a class = "code" href = "structfaiss_1_1IndexIVFFlat.html" > faiss::IndexIVFFlat< / a > (& cd.quantizer, d, nlist);< / div >
< div class = "line" > < a name = "l00230" > < / a > < span class = "lineno" > 230< / span >   < span class = "keywordflow" > if< / span > (i == 0) {< / div >
< div class = "line" > < a name = "l00231" > < / a > < span class = "lineno" > 231< / span >   < span class = "keyword" > auto< / span > il = < span class = "keyword" > new< / span > < a class = "code" href = "structfaiss_1_1OnDiskInvertedLists.html" > faiss::OnDiskInvertedLists< / a > (< / div >
< div class = "line" > < a name = "l00232" > < / a > < span class = "lineno" > 232< / span >   ivf-> nlist, ivf-> code_size,< / div >
< div class = "line" > < a name = "l00233" > < / a > < span class = "lineno" > 233< / span >   filename.c_str());< / div >
< div class = "line" > < a name = "l00234" > < / a > < span class = "lineno" > 234< / span >   ivf-> replace_invlists(il, < span class = "keyword" > true< / span > );< / 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 >   index_shards.add_shard (ivf);< / div >
< div class = "line" > < a name = "l00237" > < / a > < span class = "lineno" > 237< / span >   }< / div >
< div class = "line" > < a name = "l00238" > < / a > < span class = "lineno" > 238< / span >   < / div >
< div class = "line" > < a name = "l00239" > < / a > < span class = "lineno" > 239< / span >   EXPECT_TRUE(index_shards.< a class = "code" href = "structfaiss_1_1Index.html#a6e92732617c4dbe364e7678dd8773a7f" > is_trained< / a > );< / div >
< div class = "line" > < a name = "l00240" > < / a > < span class = "lineno" > 240< / span >   index_shards.< a class = "code" href = "structfaiss_1_1IndexShards.html#a1f771d50133494f682f05c9ab9e39ad9" > add_with_ids< / a > (nb, cd.database.data(), cd.ids.data());< / div >
< div class = "line" > < a name = "l00241" > < / a > < span class = "lineno" > 241< / span >   < span class = "keywordtype" > int< / span > ndiff = compare_merged(& index_shards, < span class = "keyword" > false< / span > );< / div >
< div class = "line" > < a name = "l00242" > < / a > < span class = "lineno" > 242< / span >   < / div >
< div class = "line" > < a name = "l00243" > < / a > < span class = "lineno" > 243< / span >   EXPECT_EQ(ndiff, 0);< / div >
< div class = "line" > < a name = "l00244" > < / a > < span class = "lineno" > 244< / span >   }< / div >
< div class = "line" > < a name = "l00245" > < / a > < span class = "lineno" > 245< / span >   < / div >
< div class = "line" > < a name = "l00246" > < / a > < span class = "lineno" > 246< / span >   < span class = "comment" > // now use ondisk specific merge< / span > < / div >
< div class = "line" > < a name = "l00247" > < / a > < span class = "lineno" > 247< / span >   TEST(MERGE, merge_flat_ondisk_2) {< / div >
< div class = "line" > < a name = "l00248" > < / a > < span class = "lineno" > 248< / span >   < a class = "code" href = "structfaiss_1_1IndexShards.html" > faiss::IndexShards< / a > index_shards(d, < span class = "keyword" > false< / span > , < span class = "keyword" > false< / span > );< / div >
< div class = "line" > < a name = "l00249" > < / a > < span class = "lineno" > 249< / span >   index_shards.own_fields = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00250" > < / a > < span class = "lineno" > 250< / span >   < / div >
< div class = "line" > < a name = "l00251" > < / a > < span class = "lineno" > 251< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > i = 0; i < nindex; i++) {< / div >
< div class = "line" > < a name = "l00252" > < / a > < span class = "lineno" > 252< / span >   index_shards.add_shard (< / div >
< div class = "line" > < a name = "l00253" > < / a > < span class = "lineno" > 253< / span >   < span class = "keyword" > new< / span > < a class = "code" href = "structfaiss_1_1IndexIVFFlat.html" > faiss::IndexIVFFlat< / a > (& cd.quantizer, d, nlist));< / div >
< div class = "line" > < a name = "l00254" > < / a > < span class = "lineno" > 254< / span >   }< / div >
< div class = "line" > < a name = "l00255" > < / a > < span class = "lineno" > 255< / span >   EXPECT_TRUE(index_shards.< a class = "code" href = "structfaiss_1_1Index.html#a6e92732617c4dbe364e7678dd8773a7f" > is_trained< / a > );< / div >
< div class = "line" > < a name = "l00256" > < / a > < span class = "lineno" > 256< / span >   index_shards.< a class = "code" href = "structfaiss_1_1IndexShards.html#a1f771d50133494f682f05c9ab9e39ad9" > add_with_ids< / a > (nb, cd.database.data(), cd.ids.data());< / div >
< div class = "line" > < a name = "l00257" > < / a > < span class = "lineno" > 257< / span >   < span class = "keywordtype" > int< / span > ndiff = compare_merged(& index_shards, < span class = "keyword" > false< / span > , < span class = "keyword" > false< / span > );< / div >
< div class = "line" > < a name = "l00258" > < / a > < span class = "lineno" > 258< / span >   EXPECT_GE(0, ndiff);< / div >
< div class = "line" > < a name = "l00259" > < / a > < span class = "lineno" > 259< / span >   }< / div >
< 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#l00091" > IndexIVF.h:91< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1RandomRotationMatrix_html" > < div class = "ttname" > < a href = "structfaiss_1_1RandomRotationMatrix.html" > faiss::RandomRotationMatrix< / a > < / div > < div class = "ttdoc" > Randomly rotate a set of vectors. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "VectorTransform_8h_source.html#l00116" > VectorTransform.h:116< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexShards_html_a1f771d50133494f682f05c9ab9e39ad9" > < div class = "ttname" > < a href = "structfaiss_1_1IndexShards.html#a1f771d50133494f682f05c9ab9e39ad9" > faiss::IndexShards::add_with_ids< / a > < / div > < div class = "ttdeci" > void add_with_ids(idx_t n, const float *x, const long *xids) override< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "MetaIndexes_8cpp_source.html#l00428" > MetaIndexes.cpp:428< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexFlatL2_html" > < div class = "ttname" > < a href = "structfaiss_1_1IndexFlatL2.html" > faiss::IndexFlatL2< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexFlat_8h_source.html#l00078" > IndexFlat.h:78< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexShards_html_a83391295650370e8987358a898bb2cca" > < div class = "ttname" > < a href = "structfaiss_1_1IndexShards.html#a83391295650370e8987358a898bb2cca" > faiss::IndexShards::search< / a > < / div > < div class = "ttdeci" > 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 = "MetaIndexes_8cpp_source.html#l00489" > MetaIndexes.cpp:489< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexPreTransform_html" > < div class = "ttname" > < a href = "structfaiss_1_1IndexPreTransform.html" > faiss::IndexPreTransform< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "VectorTransform_8h_source.html#l00253" > VectorTransform.h:253< / a > < / div > < / div >
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< div class = "ttc" id = "structfaiss_1_1IndexIVFFlat_html" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFFlat.html" > faiss::IndexIVFFlat< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFFlat_8h_source.html#l00025" > IndexIVFFlat.h:25< / a > < / div > < / div >
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< div class = "ttc" id = "structfaiss_1_1IndexShards_html_a2e06889521c566525011eb46cc97cda6" > < div class = "ttname" > < a href = "structfaiss_1_1IndexShards.html#a2e06889521c566525011eb46cc97cda6" > faiss::IndexShards::add< / a > < / div > < div class = "ttdeci" > void add(idx_t n, const float *x) override< / div > < div class = "ttdoc" > supported only for sub-indices that implement add_with_ids < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "MetaIndexes_8cpp_source.html#l00422" > MetaIndexes.cpp:422< / 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_1IndexIVF_html_a4eb943aeb7df30d44ad9b665452bfcf7" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVF.html#a4eb943aeb7df30d44ad9b665452bfcf7" > faiss::IndexIVF::replace_invlists< / a > < / div > < div class = "ttdeci" > void replace_invlists(InvertedLists *il, bool own=false)< / div > < div class = "ttdoc" > replace the inverted lists, old one is deallocated if own_invlists < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVF_8cpp_source.html#l00486" > IndexIVF.cpp:486< / 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 >
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< div class = "ttc" id = "structfaiss_1_1Index_html_aced51b1ebc33c47ab3ae15ea906559a7" > < div class = "ttname" > < a href = "structfaiss_1_1Index.html#aced51b1ebc33c47ab3ae15ea906559a7" > faiss::Index::search< / a > < / div > < div class = "ttdeci" > virtual void search(idx_t n, const float *x, idx_t k, float *distances, idx_t *labels) const =0< / div > < / div >
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< div class = "ttc" id = "structfaiss_1_1IndexPreTransform_html_ae5ec3f184eb211e7d6e204082b52c8c0" > < div class = "ttname" > < a href = "structfaiss_1_1IndexPreTransform.html#ae5ec3f184eb211e7d6e204082b52c8c0" > faiss::IndexPreTransform::own_fields< / a > < / div > < div class = "ttdeci" > bool own_fields< / div > < div class = "ttdoc" > ! the sub-index < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "VectorTransform_8h_source.html#l00258" > VectorTransform.h:258< / a > < / div > < / div >
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< div class = "ttc" id = "structfaiss_1_1OnDiskInvertedLists_html" > < div class = "ttname" > < a href = "structfaiss_1_1OnDiskInvertedLists.html" > faiss::OnDiskInvertedLists< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "OnDiskInvertedLists_8h_source.html#l00052" > OnDiskInvertedLists.h:52< / a > < / div > < / div >
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< div class = "ttc" id = "structfaiss_1_1IndexShards_html" > < div class = "ttname" > < a href = "structfaiss_1_1IndexShards.html" > faiss::IndexShards< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "MetaIndexes_8h_source.html#l00085" > MetaIndexes.h:85< / a > < / div > < / div >
< 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 >
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< div class = "ttc" id = "structfaiss_1_1Level1Quantizer_html_a1c4fc9d874d9492ee0ea27a5be388fa7" > < div class = "ttname" > < a href = "structfaiss_1_1Level1Quantizer.html#a1c4fc9d874d9492ee0ea27a5be388fa7" > faiss::Level1Quantizer::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#l00034" > IndexIVF.h:34< / a > < / div > < / div >
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< div class = "ttc" id = "structfaiss_1_1IndexIVF_html_a46d1aeddb60643c5b3f096147c3e028f" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVF.html#a46d1aeddb60643c5b3f096147c3e028f" > faiss::IndexIVF::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 = "IndexIVF_8h_source.html#l00096" > IndexIVF.h:96< / a > < / div > < / div >
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