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< title > Faiss: /data/users/matthijs/github_faiss/faiss/index_io.cpp Source File< / title >
2017-02-23 06:26:44 +08:00
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< div class = "title" > /data/users/matthijs/github_faiss/faiss/index_io.cpp< / div > < / div >
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< div class = "fragment" > < div class = "line" > < a name = "l00001" > < / a > < span class = "lineno" > 1< / span >   < span class = "comment" > /**< / span > < / div >
< div class = "line" > < a name = "l00002" > < / a > < span class = "lineno" > 2< / span >   < span class = "comment" > * Copyright (c) 2015-present, Facebook, Inc.< / span > < / div >
< div class = "line" > < a name = "l00003" > < / a > < span class = "lineno" > 3< / span >   < span class = "comment" > * All rights reserved.< / span > < / div >
< div class = "line" > < a name = "l00004" > < / a > < span class = "lineno" > 4< / span >   < span class = "comment" > *< / span > < / div >
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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 >
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< 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 = "comment" > // Copyright 2004-present Facebook. All Rights Reserved.< / span > < / div >
< div class = "line" > < a name = "l00010" > < / a > < span class = "lineno" > 10< / span >   < / div >
< div class = "line" > < a name = "l00011" > < / a > < span class = "lineno" > 11< / span >   < span class = "preprocessor" > #include " index_io.h" < / span > < / div >
< div class = "line" > < a name = "l00012" > < / a > < span class = "lineno" > 12< / span >   < / div >
< div class = "line" > < a name = "l00013" > < / a > < span class = "lineno" > 13< / span >   < span class = "preprocessor" > #include < cstdio> < / span > < / div >
< div class = "line" > < a name = "l00014" > < / a > < span class = "lineno" > 14< / span >   < span class = "preprocessor" > #include < cstdlib> < / span > < / div >
< div class = "line" > < a name = "l00015" > < / a > < span class = "lineno" > 15< / span >   < / div >
< div class = "line" > < a name = "l00016" > < / a > < span class = "lineno" > 16< / span >   < span class = "preprocessor" > #include < sys/mman.h> < / span > < / div >
< div class = "line" > < a name = "l00017" > < / a > < span class = "lineno" > 17< / span >   < / div >
< div class = "line" > < a name = "l00018" > < / a > < span class = "lineno" > 18< / span >   < span class = "preprocessor" > #include " FaissAssert.h" < / 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 " IndexFlat.h" < / span > < / div >
< div class = "line" > < a name = "l00021" > < / a > < span class = "lineno" > 21< / span >   < span class = "preprocessor" > #include " VectorTransform.h" < / span > < / div >
< div class = "line" > < a name = "l00022" > < / a > < span class = "lineno" > 22< / span >   < span class = "preprocessor" > #include " IndexLSH.h" < / span > < / div >
< div class = "line" > < a name = "l00023" > < / a > < span class = "lineno" > 23< / span >   < span class = "preprocessor" > #include " IndexPQ.h" < / span > < / div >
< div class = "line" > < a name = "l00024" > < / a > < span class = "lineno" > 24< / span >   < span class = "preprocessor" > #include " IndexIVF.h" < / span > < / div >
< div class = "line" > < a name = "l00025" > < / a > < span class = "lineno" > 25< / span >   < span class = "preprocessor" > #include " IndexIVFPQ.h" < / span > < / div >
< div class = "line" > < a name = "l00026" > < / a > < span class = "lineno" > 26< / span >   < span class = "preprocessor" > #include " MetaIndexes.h" < / span > < / div >
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< div class = "line" > < a name = "l00027" > < / a > < span class = "lineno" > 27< / span >   < span class = "preprocessor" > #include " IndexScalarQuantizer.h" < / span > < / div >
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< 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 = "comment" > /*************************************************************< / span > < / div >
< div class = "line" > < a name = "l00030" > < / a > < span class = "lineno" > 30< / span >   < span class = "comment" > * The I/O format is the content of the class. For objects that are< / span > < / div >
< div class = "line" > < a name = "l00031" > < / a > < span class = "lineno" > 31< / span >   < span class = "comment" > * inherited, like Index, a 4-character-code (fourcc) indicates which< / span > < / div >
< div class = "line" > < a name = "l00032" > < / a > < span class = "lineno" > 32< / span >   < span class = "comment" > * child class this is an instance of.< / span > < / div >
< div class = "line" > < a name = "l00033" > < / a > < span class = "lineno" > 33< / span >   < span class = "comment" > *< / span > < / div >
< div class = "line" > < a name = "l00034" > < / a > < span class = "lineno" > 34< / span >   < span class = "comment" > * In this case, the fields of the parent class are written first,< / span > < / div >
< div class = "line" > < a name = "l00035" > < / a > < span class = "lineno" > 35< / span >   < span class = "comment" > * then the ones for the child classes. Note that this requires< / span > < / div >
< div class = "line" > < a name = "l00036" > < / a > < span class = "lineno" > 36< / span >   < span class = "comment" > * classes to be serialized to have a constructor without parameters,< / span > < / div >
< div class = "line" > < a name = "l00037" > < / a > < span class = "lineno" > 37< / span >   < span class = "comment" > * so that the fields can be filled in later. The default constructor< / span > < / div >
< div class = "line" > < a name = "l00038" > < / a > < span class = "lineno" > 38< / span >   < span class = "comment" > * should set reasonable defaults for all fields.< / span > < / div >
< div class = "line" > < a name = "l00039" > < / a > < span class = "lineno" > 39< / span >   < span class = "comment" > *< / span > < / div >
< div class = "line" > < a name = "l00040" > < / a > < span class = "lineno" > 40< / span >   < span class = "comment" > * The fourccs are assigned arbitrarily. When the class changed (added< / span > < / div >
< div class = "line" > < a name = "l00041" > < / a > < span class = "lineno" > 41< / span >   < span class = "comment" > * or deprecated fields), the fourcc can be replaced. New code should< / span > < / div >
< div class = "line" > < a name = "l00042" > < / a > < span class = "lineno" > 42< / span >   < span class = "comment" > * be able to read the old fourcc and fill in new classes.< / span > < / div >
< div class = "line" > < a name = "l00043" > < / a > < span class = "lineno" > 43< / span >   < span class = "comment" > *< / span > < / div >
< div class = "line" > < a name = "l00044" > < / a > < span class = "lineno" > 44< / span >   < span class = "comment" > * TODO: serialization to strings for use in Python pickle or Torch< / span > < / div >
< div class = "line" > < a name = "l00045" > < / a > < span class = "lineno" > 45< / span >   < span class = "comment" > * serialization.< / span > < / div >
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< div class = "line" > < a name = "l00046" > < / a > < span class = "lineno" > 46< / span >   < span class = "comment" > *< / span > < / div >
< div class = "line" > < a name = "l00047" > < / a > < span class = "lineno" > 47< / span >   < span class = "comment" > * TODO: in this file, the read functions that encouter errors may< / span > < / div >
< div class = "line" > < a name = "l00048" > < / a > < span class = "lineno" > 48< / span >   < span class = "comment" > * leak memory.< / span > < / div >
< div class = "line" > < a name = "l00049" > < / a > < span class = "lineno" > 49< / span >   < span class = "comment" > **************************************************************/< / span > < / div >
< div class = "line" > < a name = "l00050" > < / a > < span class = "lineno" > 50< / span >   < / div >
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< 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 >
< div class = "line" > < a name = "l00053" > < / a > < span class = "lineno" > 53< / span >   < span class = "keyword" > namespace < / span > faiss {< / div >
< div class = "line" > < a name = "l00054" > < / a > < span class = "lineno" > 54< / span >   < / div >
< div class = "line" > < a name = "l00055" > < / a > < span class = "lineno" > 55< / span >   < span class = "keyword" > static< / span > uint32_t fourcc (< span class = "keyword" > const< / span > < span class = "keywordtype" > char< / span > sx[4]) {< / div >
< div class = "line" > < a name = "l00056" > < / a > < span class = "lineno" > 56< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > unsigned< / span > < span class = "keywordtype" > char< / span > *x = (< span class = "keywordtype" > unsigned< / span > < span class = "keywordtype" > char< / span > *)sx;< / div >
< div class = "line" > < a name = "l00057" > < / a > < span class = "lineno" > 57< / span >   < span class = "keywordflow" > return< / span > x[0] | x[1] < < 8 | x[2] < < 16 | x[3] < < 24;< / div >
< div class = "line" > < a name = "l00058" > < / a > < span class = "lineno" > 58< / 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 >   < span class = "comment" > /*************************************************************< / span > < / div >
< div class = "line" > < a name = "l00061" > < / a > < span class = "lineno" > 61< / span >   < span class = "comment" > * I/O macros< / span > < / div >
< div class = "line" > < a name = "l00062" > < / a > < span class = "lineno" > 62< / span >   < span class = "comment" > *< / span > < / div >
< div class = "line" > < a name = "l00063" > < / a > < span class = "lineno" > 63< / span >   < span class = "comment" > * we use macros so that we have a line number to report in< / span > < / div >
< div class = "line" > < a name = "l00064" > < / a > < span class = "lineno" > 64< / span >   < span class = "comment" > * abort (). This makes debugging a lot easier.< / span > < / div >
< div class = "line" > < a name = "l00065" > < / a > < span class = "lineno" > 65< / span >   < span class = "comment" > **************************************************************/< / span > < / div >
< 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 >
< div class = "line" > < a name = "l00068" > < / a > < span class = "lineno" > 68< / span >   < span class = "preprocessor" > #define WRITEANDCHECK(ptr, n) { \< / span > < / div >
< div class = "line" > < a name = "l00069" > < / a > < span class = "lineno" > 69< / span >   < span class = "preprocessor" > size_t ret = fwrite (ptr, sizeof (* (ptr)), n, f); \< / span > < / div >
< div class = "line" > < a name = "l00070" > < / a > < span class = "lineno" > 70< / span >   < span class = "preprocessor" > FAISS_THROW_IF_NOT_MSG (ret == (n), " write error" ); \< / span > < / div >
< div class = "line" > < a name = "l00071" > < / a > < span class = "lineno" > 71< / span >   < span class = "preprocessor" > }< / span > < / div >
< div class = "line" > < a name = "l00072" > < / a > < span class = "lineno" > 72< / span >   < span class = "preprocessor" > < / span > < / div >
< div class = "line" > < a name = "l00073" > < / a > < span class = "lineno" > 73< / span >   < span class = "preprocessor" > #define READANDCHECK(ptr, n) { \< / span > < / div >
< div class = "line" > < a name = "l00074" > < / a > < span class = "lineno" > 74< / span >   < span class = "preprocessor" > size_t ret = fread (ptr, sizeof (* (ptr)), n, f); \< / span > < / div >
< div class = "line" > < a name = "l00075" > < / a > < span class = "lineno" > 75< / span >   < span class = "preprocessor" > FAISS_THROW_IF_NOT_MSG (ret == (n), " read error" ); \< / span > < / div >
< div class = "line" > < a name = "l00076" > < / a > < span class = "lineno" > 76< / span >   < span class = "preprocessor" > }< / span > < / div >
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< div class = "line" > < a name = "l00077" > < / a > < span class = "lineno" > 77< / span >   < span class = "preprocessor" > < / span > < / div >
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< div class = "line" > < a name = "l00078" > < / a > < span class = "lineno" > 78< / span >   < span class = "preprocessor" > #define WRITE1(x) WRITEANDCHECK(& (x), 1)< / span > < / div >
< div class = "line" > < a name = "l00079" > < / a > < span class = "lineno" > 79< / span >   < span class = "preprocessor" > < / span > < span class = "preprocessor" > #define READ1(x) READANDCHECK(& (x), 1)< / span > < / div >
< div class = "line" > < a name = "l00080" > < / a > < span class = "lineno" > 80< / span >   < span class = "preprocessor" > < / span > < / div >
< div class = "line" > < a name = "l00081" > < / a > < span class = "lineno" > 81< / span >   < span class = "preprocessor" > #define WRITEVECTOR(vec) { \< / span > < / div >
< div class = "line" > < a name = "l00082" > < / a > < span class = "lineno" > 82< / span >   < span class = "preprocessor" > size_t size = (vec).size (); \< / span > < / div >
< div class = "line" > < a name = "l00083" > < / a > < span class = "lineno" > 83< / span >   < span class = "preprocessor" > WRITEANDCHECK (& size, 1); \< / span > < / div >
< div class = "line" > < a name = "l00084" > < / a > < span class = "lineno" > 84< / span >   < span class = "preprocessor" > WRITEANDCHECK ((vec).data (), size); \< / span > < / div >
< div class = "line" > < a name = "l00085" > < / a > < span class = "lineno" > 85< / span >   < span class = "preprocessor" > }< / span > < / div >
< div class = "line" > < a name = "l00086" > < / a > < span class = "lineno" > 86< / span >   < span class = "preprocessor" > < / span > < / div >
< div class = "line" > < a name = "l00087" > < / a > < span class = "lineno" > 87< / span >   < span class = "preprocessor" > #define READVECTOR(vec) { \< / span > < / div >
< div class = "line" > < a name = "l00088" > < / a > < span class = "lineno" > 88< / span >   < span class = "preprocessor" > long size; \< / span > < / div >
< div class = "line" > < a name = "l00089" > < / a > < span class = "lineno" > 89< / span >   < span class = "preprocessor" > READANDCHECK (& size, 1); \< / span > < / div >
< div class = "line" > < a name = "l00090" > < / a > < span class = "lineno" > 90< / span >   < span class = "preprocessor" > FAISS_THROW_IF_NOT (size > = 0 & & size < (1L < < 40)); \< / span > < / div >
< div class = "line" > < a name = "l00091" > < / a > < span class = "lineno" > 91< / span >   < span class = "preprocessor" > (vec).resize (size); \< / span > < / div >
< div class = "line" > < a name = "l00092" > < / a > < span class = "lineno" > 92< / span >   < span class = "preprocessor" > READANDCHECK ((vec).data (), size); \< / span > < / div >
< div class = "line" > < a name = "l00093" > < / a > < span class = "lineno" > 93< / span >   < span class = "preprocessor" > }< / span > < / div >
< div class = "line" > < a name = "l00094" > < / a > < span class = "lineno" > 94< / span >   < span class = "preprocessor" > < / span > < / div >
< div class = "line" > < a name = "l00095" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1ScopeFileCloser.html" > 95< / a > < / span >   < span class = "keyword" > struct < / span > < a class = "code" href = "structfaiss_1_1ScopeFileCloser.html" > ScopeFileCloser< / a > {< / div >
< div class = "line" > < a name = "l00096" > < / a > < span class = "lineno" > 96< / span >   FILE *f;< / div >
< div class = "line" > < a name = "l00097" > < / a > < span class = "lineno" > 97< / span >   < a class = "code" href = "structfaiss_1_1ScopeFileCloser.html" > ScopeFileCloser< / a > (FILE *f): f (f) {}< / div >
< div class = "line" > < a name = "l00098" > < / a > < span class = "lineno" > 98< / span >   ~< a class = "code" href = "structfaiss_1_1ScopeFileCloser.html" > ScopeFileCloser< / a > () {fclose (f); }< / div >
< div class = "line" > < a name = "l00099" > < / a > < span class = "lineno" > 99< / span >   };< / div >
< div class = "line" > < a name = "l00100" > < / a > < span class = "lineno" > 100< / span >   < / div >
< div class = "line" > < a name = "l00101" > < / a > < span class = "lineno" > 101< / span >   < span class = "comment" > // Macros for read/write arrays aligned to 16 bytes in the< / span > < / div >
< div class = "line" > < a name = "l00102" > < / a > < span class = "lineno" > 102< / span >   < span class = "comment" > // file. Useful when mmapped.< / span > < / div >
< div class = "line" > < a name = "l00103" > < / a > < span class = "lineno" > 103< / span >   < / div >
< div class = "line" > < a name = "l00104" > < / a > < span class = "lineno" > 104< / span >   < span class = "preprocessor" > #define WRITETABPAD16(tab, size_in) { \< / span > < / div >
< div class = "line" > < a name = "l00105" > < / a > < span class = "lineno" > 105< / span >   < span class = "preprocessor" > size_t size = (size_in); \< / span > < / div >
< div class = "line" > < a name = "l00106" > < / a > < span class = "lineno" > 106< / span >   < span class = "preprocessor" > WRITEANDCHECK (& size, 1); \< / span > < / div >
< div class = "line" > < a name = "l00107" > < / a > < span class = "lineno" > 107< / span >   < span class = "preprocessor" > uint8_t padding[16] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; \< / span > < / div >
< div class = "line" > < a name = "l00108" > < / a > < span class = "lineno" > 108< / span >   < span class = "preprocessor" > int idx = ftell(f) % 16; \< / span > < / div >
< div class = "line" > < a name = "l00109" > < / a > < span class = "lineno" > 109< / span >   < span class = "preprocessor" > padding [idx] = 15 - idx; \< / span > < / div >
< div class = "line" > < a name = "l00110" > < / a > < span class = "lineno" > 110< / span >   < span class = "preprocessor" > WRITEANDCHECK (padding + idx, 16 - idx); \< / span > < / div >
< div class = "line" > < a name = "l00111" > < / a > < span class = "lineno" > 111< / span >   < span class = "preprocessor" > WRITEANDCHECK ((tab), size); \< / span > < / div >
< div class = "line" > < a name = "l00112" > < / a > < span class = "lineno" > 112< / span >   < span class = "preprocessor" > }< / span > < / div >
< div class = "line" > < a name = "l00113" > < / a > < span class = "lineno" > 113< / span >   < span class = "preprocessor" > < / span > < / div >
< div class = "line" > < a name = "l00114" > < / a > < span class = "lineno" > 114< / span >   < span class = "preprocessor" > #define READTABPAD16(tab, basetype, expected_size) { \< / span > < / div >
< div class = "line" > < a name = "l00115" > < / a > < span class = "lineno" > 115< / span >   < span class = "preprocessor" > size_t size; \< / span > < / div >
< div class = "line" > < a name = "l00116" > < / a > < span class = "lineno" > 116< / span >   < span class = "preprocessor" > READANDCHECK (& size, 1); \< / span > < / div >
< div class = "line" > < a name = "l00117" > < / a > < span class = "lineno" > 117< / span >   < span class = "preprocessor" > FAISS_THROW_IF_NOT ((expected_size) == size); \< / span > < / div >
< div class = "line" > < a name = "l00118" > < / a > < span class = "lineno" > 118< / span >   < span class = "preprocessor" > uint8_t padding[16], npad; \< / span > < / div >
< div class = "line" > < a name = "l00119" > < / a > < span class = "lineno" > 119< / span >   < span class = "preprocessor" > READ1(npad); \< / span > < / div >
< div class = "line" > < a name = "l00120" > < / a > < span class = "lineno" > 120< / span >   < span class = "preprocessor" > FAISS_THROW_IF_NOT (npad < 16); \< / span > < / div >
< div class = "line" > < a name = "l00121" > < / a > < span class = "lineno" > 121< / span >   < span class = "preprocessor" > READANDCHECK (padding, npad); \< / span > < / div >
< div class = "line" > < a name = "l00122" > < / a > < span class = "lineno" > 122< / span >   < span class = "preprocessor" > (tab) = new basetype [size]; \< / span > < / div >
< div class = "line" > < a name = "l00123" > < / a > < span class = "lineno" > 123< / span >   < span class = "preprocessor" > READANDCHECK ((tab), size); \< / span > < / div >
< div class = "line" > < a name = "l00124" > < / a > < span class = "lineno" > 124< / span >   < span class = "preprocessor" > }< / span > < / div >
< div class = "line" > < a name = "l00125" > < / a > < span class = "lineno" > 125< / span >   < span class = "preprocessor" > < / span > < / div >
< div class = "line" > < a name = "l00126" > < / a > < span class = "lineno" > 126< / span >   < span class = "comment" > // read only the array header, return its offset and skip over it< / span > < / div >
< div class = "line" > < a name = "l00127" > < / a > < span class = "lineno" > 127< / span >   < span class = "preprocessor" > #define TABOFFSETPAD16(taboffset, basetype, expected_size) { \< / span > < / div >
< div class = "line" > < a name = "l00128" > < / a > < span class = "lineno" > 128< / span >   < span class = "preprocessor" > size_t size; \< / span > < / div >
< div class = "line" > < a name = "l00129" > < / a > < span class = "lineno" > 129< / span >   < span class = "preprocessor" > READANDCHECK (& size, 1); \< / span > < / div >
< div class = "line" > < a name = "l00130" > < / a > < span class = "lineno" > 130< / span >   < span class = "preprocessor" > FAISS_THROW_IF_NOT ((expected_size) == size); \< / span > < / div >
< div class = "line" > < a name = "l00131" > < / a > < span class = "lineno" > 131< / span >   < span class = "preprocessor" > uint8_t padding[16], npad; \< / span > < / div >
< div class = "line" > < a name = "l00132" > < / a > < span class = "lineno" > 132< / span >   < span class = "preprocessor" > READ1(npad); \< / span > < / div >
< div class = "line" > < a name = "l00133" > < / a > < span class = "lineno" > 133< / span >   < span class = "preprocessor" > FAISS_THROW_IF_NOT (npad < 16); \< / span > < / div >
< div class = "line" > < a name = "l00134" > < / a > < span class = "lineno" > 134< / span >   < span class = "preprocessor" > READANDCHECK (padding, npad); \< / span > < / div >
< div class = "line" > < a name = "l00135" > < / a > < span class = "lineno" > 135< / span >   < span class = "preprocessor" > taboffset = ftell(f); \< / span > < / div >
< div class = "line" > < a name = "l00136" > < / a > < span class = "lineno" > 136< / span >   < span class = "preprocessor" > fseek (f, sizeof(basetype) * size, SEEK_CUR); \< / span > < / div >
< div class = "line" > < a name = "l00137" > < / a > < span class = "lineno" > 137< / span >   < span class = "preprocessor" > }< / span > < / div >
< div class = "line" > < a name = "l00138" > < / a > < span class = "lineno" > 138< / span >   < span class = "preprocessor" > < / span > < / 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 >   < / div >
< div class = "line" > < a name = "l00141" > < / a > < span class = "lineno" > 141< / span >   < / div >
< div class = "line" > < a name = "l00142" > < / a > < span class = "lineno" > 142< / span >   < span class = "comment" > /*************************************************************< / span > < / div >
< div class = "line" > < a name = "l00143" > < / a > < span class = "lineno" > 143< / span >   < span class = "comment" > * Write< / span > < / div >
< div class = "line" > < a name = "l00144" > < / a > < span class = "lineno" > 144< / span >   < span class = "comment" > **************************************************************/< / span > < / div >
< div class = "line" > < a name = "l00145" > < / a > < span class = "lineno" > 145< / span >   < / div >
< div class = "line" > < a name = "l00146" > < / a > < span class = "lineno" > 146< / span >   < span class = "keyword" > static< / span > < span class = "keywordtype" > void< / span > write_index_header (< span class = "keyword" > const< / span > < a class = "code" href = "structfaiss_1_1Index.html" > Index< / a > *idx, FILE *f) {< / div >
< div class = "line" > < a name = "l00147" > < / a > < span class = "lineno" > 147< / span >   WRITE1 (idx-> < a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > );< / div >
< div class = "line" > < a name = "l00148" > < / a > < span class = "lineno" > 148< / span >   WRITE1 (idx-> < a class = "code" href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > ntotal< / a > );< / div >
< div class = "line" > < a name = "l00149" > < / a > < span class = "lineno" > 149< / span >   < a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > Index::idx_t< / a > dummy = 1 < < 20;< / div >
< div class = "line" > < a name = "l00150" > < / a > < span class = "lineno" > 150< / span >   WRITE1 (dummy);< / div >
< div class = "line" > < a name = "l00151" > < / a > < span class = "lineno" > 151< / span >   WRITE1 (dummy);< / div >
< div class = "line" > < a name = "l00152" > < / a > < span class = "lineno" > 152< / span >   WRITE1 (idx-> < a class = "code" href = "structfaiss_1_1Index.html#a6e92732617c4dbe364e7678dd8773a7f" > is_trained< / a > );< / div >
< div class = "line" > < a name = "l00153" > < / a > < span class = "lineno" > 153< / span >   WRITE1 (idx-> < a class = "code" href = "structfaiss_1_1Index.html#a8e18f641854b2bde83ecff0a2f9a6f4e" > metric_type< / a > );< / 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 >
< div class = "line" > < a name = "l00157" > < / a > < span class = "lineno" > 157< / span >   < / div >
< div class = "line" > < a name = "l00158" > < / a > < span class = "lineno" > 158< / span >   < span class = "keywordtype" > void< / span > write_VectorTransform (< span class = "keyword" > const< / span > VectorTransform *vt, FILE *f) {< / div >
< div class = "line" > < a name = "l00159" > < / a > < span class = "lineno" > 159< / span >   < span class = "keywordflow" > if< / span > (< span class = "keyword" > const< / span > LinearTransform * lt =< / div >
< div class = "line" > < a name = "l00160" > < / a > < span class = "lineno" > 160< / span >   dynamic_cast < const LinearTransform *> (vt)) {< / div >
< div class = "line" > < a name = "l00161" > < / a > < span class = "lineno" > 161< / span >   < span class = "keywordflow" > if< / span > (dynamic_cast< const RandomRotationMatrix *> (lt)) {< / div >
< div class = "line" > < a name = "l00162" > < / a > < span class = "lineno" > 162< / span >   uint32_t h = fourcc (< span class = "stringliteral" > " rrot" < / span > );< / div >
< div class = "line" > < a name = "l00163" > < / a > < span class = "lineno" > 163< / span >   WRITE1 (h);< / div >
< div class = "line" > < a name = "l00164" > < / a > < span class = "lineno" > 164< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (< span class = "keyword" > const< / span > PCAMatrix * pca =< / div >
< div class = "line" > < a name = "l00165" > < / a > < span class = "lineno" > 165< / span >   dynamic_cast< const PCAMatrix *> (lt)) {< / div >
< div class = "line" > < a name = "l00166" > < / a > < span class = "lineno" > 166< / span >   uint32_t h = fourcc (< span class = "stringliteral" > " PcAm" < / span > );< / div >
< div class = "line" > < a name = "l00167" > < / a > < span class = "lineno" > 167< / span >   WRITE1 (h);< / div >
< div class = "line" > < a name = "l00168" > < / a > < span class = "lineno" > 168< / span >   WRITE1 (pca-> eigen_power);< / div >
< div class = "line" > < a name = "l00169" > < / a > < span class = "lineno" > 169< / span >   WRITE1 (pca-> random_rotation);< / div >
< div class = "line" > < a name = "l00170" > < / a > < span class = "lineno" > 170< / span >   WRITE1 (pca-> balanced_bins);< / div >
< div class = "line" > < a name = "l00171" > < / a > < span class = "lineno" > 171< / span >   WRITEVECTOR (pca-> mean);< / div >
< div class = "line" > < a name = "l00172" > < / a > < span class = "lineno" > 172< / span >   WRITEVECTOR (pca-> eigenvalues);< / div >
< div class = "line" > < a name = "l00173" > < / a > < span class = "lineno" > 173< / span >   WRITEVECTOR (pca-> PCAMat);< / div >
< div class = "line" > < a name = "l00174" > < / a > < span class = "lineno" > 174< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00175" > < / a > < span class = "lineno" > 175< / span >   < span class = "comment" > // generic LinearTransform (includes OPQ)< / span > < / div >
< div class = "line" > < a name = "l00176" > < / a > < span class = "lineno" > 176< / span >   uint32_t h = fourcc (< span class = "stringliteral" > " LTra" < / span > );< / div >
< div class = "line" > < a name = "l00177" > < / a > < span class = "lineno" > 177< / span >   WRITE1 (h);< / div >
< div class = "line" > < a name = "l00178" > < / a > < span class = "lineno" > 178< / span >   }< / div >
< div class = "line" > < a name = "l00179" > < / a > < span class = "lineno" > 179< / span >   WRITE1 (lt-> have_bias);< / div >
< div class = "line" > < a name = "l00180" > < / a > < span class = "lineno" > 180< / span >   WRITEVECTOR (lt-> A);< / div >
< div class = "line" > < a name = "l00181" > < / a > < span class = "lineno" > 181< / span >   WRITEVECTOR (lt-> b);< / div >
< div class = "line" > < a name = "l00182" > < / a > < span class = "lineno" > 182< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (< span class = "keyword" > const< / span > RemapDimensionsTransform *rdt =< / div >
< div class = "line" > < a name = "l00183" > < / a > < span class = "lineno" > 183< / span >   dynamic_cast< const RemapDimensionsTransform *> (vt)) {< / div >
< div class = "line" > < a name = "l00184" > < / a > < span class = "lineno" > 184< / span >   uint32_t h = fourcc (< span class = "stringliteral" > " RmDT" < / span > );< / div >
< div class = "line" > < a name = "l00185" > < / a > < span class = "lineno" > 185< / span >   WRITE1 (h);< / div >
< div class = "line" > < a name = "l00186" > < / a > < span class = "lineno" > 186< / span >   WRITEVECTOR (rdt-> map);< / div >
2017-07-18 17:43:35 +08:00
< div class = "line" > < a name = "l00187" > < / a > < span class = "lineno" > 187< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (< span class = "keyword" > const< / span > NormalizationTransform *nt =< / div >
< div class = "line" > < a name = "l00188" > < / a > < span class = "lineno" > 188< / span >   dynamic_cast< const NormalizationTransform *> (vt)) {< / div >
< div class = "line" > < a name = "l00189" > < / a > < span class = "lineno" > 189< / span >   uint32_t h = fourcc (< span class = "stringliteral" > " VNrm" < / span > );< / div >
< div class = "line" > < a name = "l00190" > < / a > < span class = "lineno" > 190< / span >   WRITE1 (h);< / div >
< div class = "line" > < a name = "l00191" > < / a > < span class = "lineno" > 191< / span >   WRITE1 (nt-> norm);< / div >
< div class = "line" > < a name = "l00192" > < / a > < span class = "lineno" > 192< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00193" > < / a > < span class = "lineno" > 193< / span >   FAISS_THROW_MSG (< span class = "stringliteral" > " cannot serialize this" < / span > );< / div >
< div class = "line" > < a name = "l00194" > < / a > < span class = "lineno" > 194< / span >   }< / div >
< div class = "line" > < a name = "l00195" > < / a > < span class = "lineno" > 195< / span >   < span class = "comment" > // common fields< / span > < / div >
< div class = "line" > < a name = "l00196" > < / a > < span class = "lineno" > 196< / span >   WRITE1 (vt-> d_in);< / div >
< div class = "line" > < a name = "l00197" > < / a > < span class = "lineno" > 197< / span >   WRITE1 (vt-> d_out);< / div >
< div class = "line" > < a name = "l00198" > < / a > < span class = "lineno" > 198< / span >   WRITE1 (vt-> is_trained);< / div >
< div class = "line" > < a name = "l00199" > < / a > < span class = "lineno" > 199< / span >   }< / div >
< div class = "line" > < a name = "l00200" > < / a > < span class = "lineno" > 200< / span >   < / div >
< div class = "line" > < a name = "l00201" > < / a > < span class = "lineno" > 201< / span >   < span class = "keyword" > static< / span > < span class = "keywordtype" > void< / span > write_ProductQuantizer (< span class = "keyword" > const< / span > ProductQuantizer *pq, FILE *f) {< / div >
< div class = "line" > < a name = "l00202" > < / a > < span class = "lineno" > 202< / span >   WRITE1 (pq-> d);< / div >
< div class = "line" > < a name = "l00203" > < / a > < span class = "lineno" > 203< / span >   WRITE1 (pq-> M);< / div >
< div class = "line" > < a name = "l00204" > < / a > < span class = "lineno" > 204< / span >   WRITE1 (pq-> nbits);< / div >
< div class = "line" > < a name = "l00205" > < / a > < span class = "lineno" > 205< / span >   WRITEVECTOR (pq-> centroids);< / 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 >   < / div >
< div class = "line" > < a name = "l00208" > < / a > < span class = "lineno" > 208< / span >   < span class = "keyword" > static< / span > < span class = "keywordtype" > void< / span > write_ScalarQuantizer (< span class = "keyword" > const< / span > ScalarQuantizer *ivsc, FILE *f) {< / div >
< div class = "line" > < a name = "l00209" > < / a > < span class = "lineno" > 209< / span >   WRITE1 (ivsc-> qtype);< / div >
< div class = "line" > < a name = "l00210" > < / a > < span class = "lineno" > 210< / span >   WRITE1 (ivsc-> rangestat);< / div >
< div class = "line" > < a name = "l00211" > < / a > < span class = "lineno" > 211< / span >   WRITE1 (ivsc-> rangestat_arg);< / div >
< div class = "line" > < a name = "l00212" > < / a > < span class = "lineno" > 212< / span >   WRITE1 (ivsc-> d);< / div >
< div class = "line" > < a name = "l00213" > < / a > < span class = "lineno" > 213< / span >   WRITE1 (ivsc-> code_size);< / div >
< div class = "line" > < a name = "l00214" > < / a > < span class = "lineno" > 214< / span >   WRITEVECTOR (ivsc-> trained);< / div >
< div class = "line" > < a name = "l00215" > < / a > < span class = "lineno" > 215< / span >   }< / div >
< div class = "line" > < a name = "l00216" > < / a > < span class = "lineno" > 216< / span >   < / div >
< div class = "line" > < a name = "l00217" > < / a > < span class = "lineno" > 217< / span >   < span class = "keywordtype" > void< / span > write_ProductQuantizer (< span class = "keyword" > const< / span > ProductQuantizer*pq, < span class = "keyword" > const< / span > < span class = "keywordtype" > char< / span > *fname) {< / div >
< div class = "line" > < a name = "l00218" > < / a > < span class = "lineno" > 218< / span >   FILE *f = fopen (fname, < span class = "stringliteral" > " w" < / span > );< / div >
< div class = "line" > < a name = "l00219" > < / a > < span class = "lineno" > 219< / span >   FAISS_THROW_IF_NOT_FMT (f, < span class = "stringliteral" > " cannot open %s for writing" < / span > , fname);< / div >
< div class = "line" > < a name = "l00220" > < / a > < span class = "lineno" > 220< / span >   ScopeFileCloser closer(f);< / div >
< div class = "line" > < a name = "l00221" > < / a > < span class = "lineno" > 221< / span >   write_ProductQuantizer (pq, f);< / div >
< div class = "line" > < a name = "l00222" > < / a > < span class = "lineno" > 222< / span >   }< / div >
< div class = "line" > < a name = "l00223" > < / a > < span class = "lineno" > 223< / span >   < / div >
< div class = "line" > < a name = "l00224" > < / a > < span class = "lineno" > 224< / span >   < / div >
< div class = "line" > < a name = "l00225" > < / a > < span class = "lineno" > 225< / span >   < / div >
< div class = "line" > < a name = "l00226" > < / a > < span class = "lineno" > 226< / span >   < span class = "keyword" > static< / span > < span class = "keywordtype" > void< / span > write_ivf_header (< span class = "keyword" > const< / span > IndexIVF * ivf, FILE *f,< / div >
< div class = "line" > < a name = "l00227" > < / a > < span class = "lineno" > 227< / span >   < span class = "keywordtype" > bool< / span > include_ids = < span class = "keyword" > true< / span > ) {< / div >
< div class = "line" > < a name = "l00228" > < / a > < span class = "lineno" > 228< / span >   write_index_header (ivf, f);< / div >
< div class = "line" > < a name = "l00229" > < / a > < span class = "lineno" > 229< / span >   WRITE1 (ivf-> nlist);< / div >
< div class = "line" > < a name = "l00230" > < / a > < span class = "lineno" > 230< / span >   WRITE1 (ivf-> nprobe);< / div >
< div class = "line" > < a name = "l00231" > < / a > < span class = "lineno" > 231< / span >   write_index (ivf-> quantizer, f);< / div >
< div class = "line" > < a name = "l00232" > < / a > < span class = "lineno" > 232< / span >   < span class = "keywordflow" > if< / span > (include_ids) {< / div >
< div class = "line" > < a name = "l00233" > < / a > < span class = "lineno" > 233< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > size_t< / span > i = 0; i < ivf-> nlist; i++)< / div >
< div class = "line" > < a name = "l00234" > < / a > < span class = "lineno" > 234< / span >   WRITEVECTOR (ivf-> ids[i]);< / 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 >   WRITE1 (ivf-> maintain_direct_map);< / div >
< div class = "line" > < a name = "l00237" > < / a > < span class = "lineno" > 237< / span >   WRITEVECTOR (ivf-> direct_map);< / 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 >   < / div >
< div class = "line" > < a name = "l00240" > < / a > < span class = "lineno" > 240< / span >   < span class = "keywordtype" > void< / span > write_index (< span class = "keyword" > const< / span > Index *idx, FILE *f) {< / div >
< div class = "line" > < a name = "l00241" > < / a > < span class = "lineno" > 241< / span >   < span class = "keywordflow" > if< / span > (< span class = "keyword" > const< / span > IndexFlat * idxf = dynamic_cast< const IndexFlat *> (idx)) {< / div >
< div class = "line" > < a name = "l00242" > < / a > < span class = "lineno" > 242< / span >   uint32_t h = fourcc (< / div >
< div class = "line" > < a name = "l00243" > < / a > < span class = "lineno" > 243< / span >   idxf-> metric_type == METRIC_INNER_PRODUCT ? < span class = "stringliteral" > " IxFI" < / span > :< / div >
< div class = "line" > < a name = "l00244" > < / a > < span class = "lineno" > 244< / span >   idxf-> metric_type == METRIC_L2 ? < span class = "stringliteral" > " IxF2" < / span > : < span class = "keyword" > nullptr< / span > );< / div >
2017-06-21 21:54:28 +08:00
< div class = "line" > < a name = "l00245" > < / a > < span class = "lineno" > 245< / span >   WRITE1 (h);< / div >
< div class = "line" > < a name = "l00246" > < / a > < span class = "lineno" > 246< / span >   write_index_header (idx, f);< / div >
2017-07-18 17:43:35 +08:00
< div class = "line" > < a name = "l00247" > < / a > < span class = "lineno" > 247< / span >   WRITEVECTOR (idxf-> xb);< / div >
< div class = "line" > < a name = "l00248" > < / a > < span class = "lineno" > 248< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (< span class = "keyword" > const< / span > IndexLSH * idxl = dynamic_cast< const IndexLSH *> (idx)) {< / div >
< div class = "line" > < a name = "l00249" > < / a > < span class = "lineno" > 249< / span >   uint32_t h = fourcc (< span class = "stringliteral" > " IxHe" < / span > );< / div >
< div class = "line" > < a name = "l00250" > < / a > < span class = "lineno" > 250< / span >   WRITE1 (h);< / div >
< div class = "line" > < a name = "l00251" > < / a > < span class = "lineno" > 251< / span >   write_index_header (idx, f);< / div >
< div class = "line" > < a name = "l00252" > < / a > < span class = "lineno" > 252< / span >   WRITE1 (idxl-> nbits);< / div >
< div class = "line" > < a name = "l00253" > < / a > < span class = "lineno" > 253< / span >   WRITE1 (idxl-> rotate_data);< / div >
< div class = "line" > < a name = "l00254" > < / a > < span class = "lineno" > 254< / span >   WRITE1 (idxl-> train_thresholds);< / div >
< div class = "line" > < a name = "l00255" > < / a > < span class = "lineno" > 255< / span >   WRITEVECTOR (idxl-> thresholds);< / div >
< div class = "line" > < a name = "l00256" > < / a > < span class = "lineno" > 256< / span >   WRITE1 (idxl-> bytes_per_vec);< / div >
< div class = "line" > < a name = "l00257" > < / a > < span class = "lineno" > 257< / span >   write_VectorTransform (& idxl-> rrot, f);< / div >
< div class = "line" > < a name = "l00258" > < / a > < span class = "lineno" > 258< / span >   WRITEVECTOR (idxl-> codes);< / div >
< div class = "line" > < a name = "l00259" > < / a > < span class = "lineno" > 259< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (< span class = "keyword" > const< / span > IndexPQ * idxp = dynamic_cast< const IndexPQ *> (idx)) {< / div >
< div class = "line" > < a name = "l00260" > < / a > < span class = "lineno" > 260< / span >   uint32_t h = fourcc (< span class = "stringliteral" > " IxPq" < / span > );< / div >
< div class = "line" > < a name = "l00261" > < / a > < span class = "lineno" > 261< / span >   WRITE1 (h);< / div >
< div class = "line" > < a name = "l00262" > < / a > < span class = "lineno" > 262< / span >   write_index_header (idx, f);< / div >
< div class = "line" > < a name = "l00263" > < / a > < span class = "lineno" > 263< / span >   write_ProductQuantizer (& idxp-> pq, f);< / div >
< div class = "line" > < a name = "l00264" > < / a > < span class = "lineno" > 264< / span >   WRITEVECTOR (idxp-> codes);< / div >
< div class = "line" > < a name = "l00265" > < / a > < span class = "lineno" > 265< / span >   < span class = "comment" > // search params -- maybe not useful to store?< / span > < / div >
< div class = "line" > < a name = "l00266" > < / a > < span class = "lineno" > 266< / span >   WRITE1 (idxp-> search_type);< / div >
< div class = "line" > < a name = "l00267" > < / a > < span class = "lineno" > 267< / span >   WRITE1 (idxp-> encode_signs);< / div >
< div class = "line" > < a name = "l00268" > < / a > < span class = "lineno" > 268< / span >   WRITE1 (idxp-> polysemous_ht);< / div >
< div class = "line" > < a name = "l00269" > < / a > < span class = "lineno" > 269< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (< span class = "keyword" > const< / span > IndexScalarQuantizer * idxs =< / div >
< div class = "line" > < a name = "l00270" > < / a > < span class = "lineno" > 270< / span >   dynamic_cast< const IndexScalarQuantizer *> (idx)) {< / div >
< div class = "line" > < a name = "l00271" > < / a > < span class = "lineno" > 271< / span >   uint32_t h = fourcc (< span class = "stringliteral" > " IxSQ" < / span > );< / div >
< div class = "line" > < a name = "l00272" > < / a > < span class = "lineno" > 272< / span >   WRITE1 (h);< / div >
< div class = "line" > < a name = "l00273" > < / a > < span class = "lineno" > 273< / span >   write_index_header (idx, f);< / div >
< div class = "line" > < a name = "l00274" > < / a > < span class = "lineno" > 274< / span >   write_ScalarQuantizer (& idxs-> sq, f);< / div >
< div class = "line" > < a name = "l00275" > < / a > < span class = "lineno" > 275< / span >   WRITEVECTOR (idxs-> codes);< / div >
< div class = "line" > < a name = "l00276" > < / a > < span class = "lineno" > 276< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (< span class = "keyword" > const< / span > IndexIVFFlat * ivfl =< / div >
< div class = "line" > < a name = "l00277" > < / a > < span class = "lineno" > 277< / span >   dynamic_cast< const IndexIVFFlat *> (idx)) {< / div >
2017-09-08 19:39:41 +08:00
< div class = "line" > < a name = "l00278" > < / a > < span class = "lineno" > 278< / span >   uint32_t h = fourcc (< span class = "stringliteral" > " IvFL" < / span > );< / div >
2017-07-18 17:43:35 +08:00
< div class = "line" > < a name = "l00279" > < / a > < span class = "lineno" > 279< / span >   WRITE1 (h);< / div >
< div class = "line" > < a name = "l00280" > < / a > < span class = "lineno" > 280< / span >   write_ivf_header (ivfl, f);< / div >
< div class = "line" > < a name = "l00281" > < / a > < span class = "lineno" > 281< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > i = 0; i < ivfl-> nlist; i++)< / div >
2017-09-08 19:39:41 +08:00
< div class = "line" > < a name = "l00282" > < / a > < span class = "lineno" > 282< / span >   WRITEVECTOR (ivfl-> codes[i]);< / div >
2017-07-18 17:43:35 +08:00
< div class = "line" > < a name = "l00283" > < / a > < span class = "lineno" > 283< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (< span class = "keyword" > const< / span > IndexIVFScalarQuantizer * ivsc =< / div >
< div class = "line" > < a name = "l00284" > < / a > < span class = "lineno" > 284< / span >   dynamic_cast< const IndexIVFScalarQuantizer *> (idx)) {< / div >
< div class = "line" > < a name = "l00285" > < / a > < span class = "lineno" > 285< / span >   uint32_t h = fourcc (< span class = "stringliteral" > " IvSQ" < / span > );< / div >
2017-06-21 21:54:28 +08:00
< div class = "line" > < a name = "l00286" > < / a > < span class = "lineno" > 286< / span >   WRITE1 (h);< / div >
2017-07-18 17:43:35 +08:00
< div class = "line" > < a name = "l00287" > < / a > < span class = "lineno" > 287< / span >   write_ivf_header (ivsc, f);< / div >
< div class = "line" > < a name = "l00288" > < / a > < span class = "lineno" > 288< / span >   write_ScalarQuantizer (& ivsc-> sq, f);< / div >
< div class = "line" > < a name = "l00289" > < / a > < span class = "lineno" > 289< / span >   WRITE1 (ivsc-> code_size);< / div >
< div class = "line" > < a name = "l00290" > < / a > < span class = "lineno" > 290< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > i = 0; i < ivsc-> nlist; i++)< / div >
< div class = "line" > < a name = "l00291" > < / a > < span class = "lineno" > 291< / span >   WRITEVECTOR (ivsc-> codes[i]);< / div >
< div class = "line" > < a name = "l00292" > < / a > < span class = "lineno" > 292< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (< span class = "keyword" > const< / span > IndexIVFPQ * ivpq =< / div >
< div class = "line" > < a name = "l00293" > < / a > < span class = "lineno" > 293< / span >   dynamic_cast< const IndexIVFPQ *> (idx)) {< / div >
< div class = "line" > < a name = "l00294" > < / a > < span class = "lineno" > 294< / span >   < span class = "keyword" > const< / span > IndexIVFPQR * ivfpqr = < span class = "keyword" > dynamic_cast< < / span > < span class = "keyword" > const < / span > IndexIVFPQR *< span class = "keyword" > > < / span > (idx);< / div >
< div class = "line" > < a name = "l00295" > < / a > < span class = "lineno" > 295< / span >   < span class = "keyword" > const< / span > IndexIVFPQCompact * ivfpqc =< / div >
< div class = "line" > < a name = "l00296" > < / a > < span class = "lineno" > 296< / span >   < span class = "keyword" > dynamic_cast< < / span > < span class = "keyword" > const < / span > IndexIVFPQCompact *< span class = "keyword" > > < / span > (idx);< / div >
< div class = "line" > < a name = "l00297" > < / a > < span class = "lineno" > 297< / span >   uint32_t h = fourcc (ivfpqr ? < span class = "stringliteral" > " IvQR" < / span > : ivfpqc ? < span class = "stringliteral" > " IvPC" < / span > : < span class = "stringliteral" > " IvPQ" < / span > );< / div >
< div class = "line" > < a name = "l00298" > < / a > < span class = "lineno" > 298< / span >   WRITE1 (h);< / div >
< div class = "line" > < a name = "l00299" > < / a > < span class = "lineno" > 299< / span >   write_ivf_header (ivpq, f, !ivfpqc);< / div >
< div class = "line" > < a name = "l00300" > < / a > < span class = "lineno" > 300< / span >   WRITE1 (ivpq-> by_residual);< / div >
< div class = "line" > < a name = "l00301" > < / a > < span class = "lineno" > 301< / span >   WRITE1 (ivpq-> code_size);< / div >
< div class = "line" > < a name = "l00302" > < / a > < span class = "lineno" > 302< / span >   write_ProductQuantizer (& ivpq-> pq, f);< / div >
< div class = "line" > < a name = "l00303" > < / a > < span class = "lineno" > 303< / span >   < span class = "keywordflow" > if< / span > (!ivfpqc) {< / div >
< div class = "line" > < a name = "l00304" > < / a > < span class = "lineno" > 304< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > i = 0; i < ivpq-> codes.size(); i++)< / div >
< div class = "line" > < a name = "l00305" > < / a > < span class = "lineno" > 305< / span >   WRITEVECTOR (ivpq-> codes[i]);< / 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 >   < span class = "keywordflow" > if< / span > (ivfpqr) {< / div >
< div class = "line" > < a name = "l00308" > < / a > < span class = "lineno" > 308< / span >   write_ProductQuantizer (& ivfpqr-> refine_pq, f);< / div >
< div class = "line" > < a name = "l00309" > < / a > < span class = "lineno" > 309< / span >   WRITEVECTOR (ivfpqr-> refine_codes);< / div >
< div class = "line" > < a name = "l00310" > < / a > < span class = "lineno" > 310< / span >   WRITE1 (ivfpqr-> k_factor);< / div >
< div class = "line" > < a name = "l00311" > < / a > < span class = "lineno" > 311< / span >   }< / div >
< div class = "line" > < a name = "l00312" > < / a > < span class = "lineno" > 312< / span >   < span class = "keywordflow" > if< / span > (ivfpqc) {< / div >
< div class = "line" > < a name = "l00313" > < / a > < span class = "lineno" > 313< / span >   WRITETABPAD16 (ivfpqc-> limits, ivfpqc-> nlist + 1);< / div >
< div class = "line" > < a name = "l00314" > < / a > < span class = "lineno" > 314< / span >   WRITETABPAD16 (ivfpqc-> compact_ids, ivfpqc-> ntotal);< / div >
< div class = "line" > < a name = "l00315" > < / a > < span class = "lineno" > 315< / span >   WRITETABPAD16 (ivfpqc-> compact_codes,< / div >
< div class = "line" > < a name = "l00316" > < / a > < span class = "lineno" > 316< / span >   ivfpqc-> ntotal * ivfpqc-> code_size);< / div >
< div class = "line" > < a name = "l00317" > < / a > < span class = "lineno" > 317< / span >   }< / div >
< div class = "line" > < a name = "l00318" > < / a > < span class = "lineno" > 318< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (< span class = "keyword" > const< / span > IndexPreTransform * ixpt =< / div >
< div class = "line" > < a name = "l00319" > < / a > < span class = "lineno" > 319< / span >   dynamic_cast< const IndexPreTransform *> (idx)) {< / div >
< div class = "line" > < a name = "l00320" > < / a > < span class = "lineno" > 320< / span >   uint32_t h = fourcc (< span class = "stringliteral" > " IxPT" < / span > );< / div >
< div class = "line" > < a name = "l00321" > < / a > < span class = "lineno" > 321< / span >   WRITE1 (h);< / div >
< div class = "line" > < a name = "l00322" > < / a > < span class = "lineno" > 322< / span >   write_index_header (ixpt, f);< / div >
< div class = "line" > < a name = "l00323" > < / a > < span class = "lineno" > 323< / span >   < span class = "keywordtype" > int< / span > nt = ixpt-> chain.size();< / div >
< div class = "line" > < a name = "l00324" > < / a > < span class = "lineno" > 324< / span >   WRITE1 (nt);< / div >
< div class = "line" > < a name = "l00325" > < / a > < span class = "lineno" > 325< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > i = 0; i < nt; i++)< / div >
< div class = "line" > < a name = "l00326" > < / a > < span class = "lineno" > 326< / span >   write_VectorTransform (ixpt-> chain[i], f);< / div >
< div class = "line" > < a name = "l00327" > < / a > < span class = "lineno" > 327< / span >   write_index (ixpt-> index, f);< / div >
< div class = "line" > < a name = "l00328" > < / a > < span class = "lineno" > 328< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (< span class = "keyword" > const< / span > MultiIndexQuantizer * imiq =< / div >
< div class = "line" > < a name = "l00329" > < / a > < span class = "lineno" > 329< / span >   dynamic_cast< const MultiIndexQuantizer *> (idx)) {< / div >
< div class = "line" > < a name = "l00330" > < / a > < span class = "lineno" > 330< / span >   uint32_t h = fourcc (< span class = "stringliteral" > " Imiq" < / span > );< / div >
< div class = "line" > < a name = "l00331" > < / a > < span class = "lineno" > 331< / span >   WRITE1 (h);< / div >
< div class = "line" > < a name = "l00332" > < / a > < span class = "lineno" > 332< / span >   write_index_header (imiq, f);< / div >
< div class = "line" > < a name = "l00333" > < / a > < span class = "lineno" > 333< / span >   write_ProductQuantizer (& imiq-> pq, f);< / div >
< div class = "line" > < a name = "l00334" > < / a > < span class = "lineno" > 334< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (< span class = "keyword" > const< / span > IndexRefineFlat * idxrf =< / div >
< div class = "line" > < a name = "l00335" > < / a > < span class = "lineno" > 335< / span >   dynamic_cast< const IndexRefineFlat *> (idx)) {< / div >
< div class = "line" > < a name = "l00336" > < / a > < span class = "lineno" > 336< / span >   uint32_t h = fourcc (< span class = "stringliteral" > " IxRF" < / span > );< / div >
< div class = "line" > < a name = "l00337" > < / a > < span class = "lineno" > 337< / span >   WRITE1 (h);< / div >
< div class = "line" > < a name = "l00338" > < / a > < span class = "lineno" > 338< / span >   write_index_header (idxrf, f);< / div >
< div class = "line" > < a name = "l00339" > < / a > < span class = "lineno" > 339< / span >   write_index (idxrf-> base_index, f);< / div >
< div class = "line" > < a name = "l00340" > < / a > < span class = "lineno" > 340< / span >   write_index (& idxrf-> refine_index, f);< / div >
< div class = "line" > < a name = "l00341" > < / a > < span class = "lineno" > 341< / span >   WRITE1 (idxrf-> k_factor);< / div >
< div class = "line" > < a name = "l00342" > < / a > < span class = "lineno" > 342< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (< span class = "keyword" > const< / span > IndexIDMap * idxmap =< / div >
< div class = "line" > < a name = "l00343" > < / a > < span class = "lineno" > 343< / span >   dynamic_cast< const IndexIDMap *> (idx)) {< / div >
< div class = "line" > < a name = "l00344" > < / a > < span class = "lineno" > 344< / span >   uint32_t h =< / div >
< div class = "line" > < a name = "l00345" > < / a > < span class = "lineno" > 345< / span >   < span class = "keyword" > dynamic_cast< < / span > < span class = "keyword" > const < / span > IndexIDMap2 *< span class = "keyword" > > < / span > (idx) ? fourcc (< span class = "stringliteral" > " IxM2" < / span > ) :< / div >
< div class = "line" > < a name = "l00346" > < / a > < span class = "lineno" > 346< / span >   fourcc (< span class = "stringliteral" > " IxMp" < / span > );< / div >
< div class = "line" > < a name = "l00347" > < / a > < span class = "lineno" > 347< / span >   < span class = "comment" > // no need to store additional info for IndexIDMap2< / span > < / div >
< div class = "line" > < a name = "l00348" > < / a > < span class = "lineno" > 348< / span >   WRITE1 (h);< / div >
< div class = "line" > < a name = "l00349" > < / a > < span class = "lineno" > 349< / span >   write_index_header (idxmap, f);< / div >
< div class = "line" > < a name = "l00350" > < / a > < span class = "lineno" > 350< / span >   write_index (idxmap-> index, f);< / div >
< div class = "line" > < a name = "l00351" > < / a > < span class = "lineno" > 351< / span >   WRITEVECTOR (idxmap-> id_map);< / div >
< div class = "line" > < a name = "l00352" > < / a > < span class = "lineno" > 352< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00353" > < / a > < span class = "lineno" > 353< / span >   FAISS_THROW_MSG (< span class = "stringliteral" > " don' t know how to serialize this type of index" < / span > );< / div >
< div class = "line" > < a name = "l00354" > < / a > < span class = "lineno" > 354< / span >   }< / div >
< div class = "line" > < a name = "l00355" > < / a > < span class = "lineno" > 355< / span >   }< / div >
< div class = "line" > < a name = "l00356" > < / a > < span class = "lineno" > 356< / span >   < / div >
< div class = "line" > < a name = "l00357" > < / a > < span class = "lineno" > 357< / span >   < span class = "keywordtype" > void< / span > write_index (< span class = "keyword" > const< / span > Index *idx, < span class = "keyword" > const< / span > < span class = "keywordtype" > char< / span > *fname) {< / div >
< div class = "line" > < a name = "l00358" > < / a > < span class = "lineno" > 358< / span >   FILE *f = fopen (fname, < span class = "stringliteral" > " w" < / span > );< / div >
< div class = "line" > < a name = "l00359" > < / a > < span class = "lineno" > 359< / span >   FAISS_THROW_IF_NOT_FMT (f, < span class = "stringliteral" > " cannot open %s for writing" < / span > , fname);< / div >
< div class = "line" > < a name = "l00360" > < / a > < span class = "lineno" > 360< / span >   ScopeFileCloser closer(f);< / div >
< div class = "line" > < a name = "l00361" > < / a > < span class = "lineno" > 361< / span >   write_index (idx, f);< / 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 >   < span class = "keywordtype" > void< / span > write_VectorTransform (< span class = "keyword" > const< / span > VectorTransform *vt, < span class = "keyword" > const< / span > < span class = "keywordtype" > char< / span > *fname) {< / div >
< div class = "line" > < a name = "l00365" > < / a > < span class = "lineno" > 365< / span >   FILE *f = fopen (fname, < span class = "stringliteral" > " w" < / span > );< / div >
< div class = "line" > < a name = "l00366" > < / a > < span class = "lineno" > 366< / span >   FAISS_THROW_IF_NOT_FMT (f, < span class = "stringliteral" > " cannot open %s for writing" < / span > , fname);< / div >
< div class = "line" > < a name = "l00367" > < / a > < span class = "lineno" > 367< / span >   ScopeFileCloser closer(f);< / div >
< div class = "line" > < a name = "l00368" > < / a > < span class = "lineno" > 368< / span >   write_VectorTransform (vt, f);< / div >
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< div class = "line" > < a name = "l00369" > < / a > < span class = "lineno" > 369< / span >   }< / div >
< div class = "line" > < a name = "l00370" > < / a > < span class = "lineno" > 370< / span >   < / div >
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< 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" > * Read< / 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 >   < / div >
< div class = "line" > < a name = "l00375" > < / a > < span class = "lineno" > 375< / span >   < span class = "keyword" > static< / span > < span class = "keywordtype" > void< / span > read_index_header (Index *idx, FILE *f) {< / div >
< div class = "line" > < a name = "l00376" > < / a > < span class = "lineno" > 376< / span >   READ1 (idx-> d);< / div >
< div class = "line" > < a name = "l00377" > < / a > < span class = "lineno" > 377< / span >   READ1 (idx-> ntotal);< / div >
< div class = "line" > < a name = "l00378" > < / a > < span class = "lineno" > 378< / span >   < a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > Index::idx_t< / a > dummy;< / div >
< div class = "line" > < a name = "l00379" > < / a > < span class = "lineno" > 379< / span >   READ1 (dummy);< / div >
< div class = "line" > < a name = "l00380" > < / a > < span class = "lineno" > 380< / span >   READ1 (dummy);< / div >
< div class = "line" > < a name = "l00381" > < / a > < span class = "lineno" > 381< / span >   READ1 (idx-> is_trained);< / div >
< div class = "line" > < a name = "l00382" > < / a > < span class = "lineno" > 382< / span >   READ1 (idx-> metric_type);< / div >
< div class = "line" > < a name = "l00383" > < / a > < span class = "lineno" > 383< / span >   idx-> verbose = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00384" > < / a > < span class = "lineno" > 384< / span >   }< / div >
< div class = "line" > < a name = "l00385" > < / a > < span class = "lineno" > 385< / span >   < / div >
< div class = "line" > < a name = "l00386" > < / a > < span class = "lineno" > 386< / span >   VectorTransform* read_VectorTransform (FILE *f) {< / div >
< div class = "line" > < a name = "l00387" > < / a > < span class = "lineno" > 387< / span >   uint32_t h;< / div >
< div class = "line" > < a name = "l00388" > < / a > < span class = "lineno" > 388< / span >   READ1 (h);< / div >
< div class = "line" > < a name = "l00389" > < / a > < span class = "lineno" > 389< / span >   VectorTransform *vt = < span class = "keyword" > nullptr< / span > ;< / div >
< div class = "line" > < a name = "l00390" > < / a > < span class = "lineno" > 390< / span >   < / div >
< div class = "line" > < a name = "l00391" > < / a > < span class = "lineno" > 391< / span >   < span class = "keywordflow" > if< / span > (h == fourcc (< span class = "stringliteral" > " rrot" < / span > ) || h == fourcc (< span class = "stringliteral" > " PCAm" < / span > ) ||< / div >
< div class = "line" > < a name = "l00392" > < / a > < span class = "lineno" > 392< / span >   h == fourcc (< span class = "stringliteral" > " LTra" < / span > ) || h == fourcc (< span class = "stringliteral" > " PcAm" < / span > )) {< / div >
< div class = "line" > < a name = "l00393" > < / a > < span class = "lineno" > 393< / span >   LinearTransform *lt = < span class = "keyword" > nullptr< / span > ;< / div >
< div class = "line" > < a name = "l00394" > < / a > < span class = "lineno" > 394< / span >   < span class = "keywordflow" > if< / span > (h == fourcc (< span class = "stringliteral" > " rrot" < / span > )) {< / div >
< div class = "line" > < a name = "l00395" > < / a > < span class = "lineno" > 395< / span >   lt = < span class = "keyword" > new< / span > RandomRotationMatrix ();< / div >
< div class = "line" > < a name = "l00396" > < / a > < span class = "lineno" > 396< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (h == fourcc (< span class = "stringliteral" > " PCAm" < / span > ) ||< / div >
< div class = "line" > < a name = "l00397" > < / a > < span class = "lineno" > 397< / span >   h == fourcc (< span class = "stringliteral" > " PcAm" < / span > )) {< / div >
< div class = "line" > < a name = "l00398" > < / a > < span class = "lineno" > 398< / span >   PCAMatrix * pca = < span class = "keyword" > new< / span > PCAMatrix ();< / div >
< div class = "line" > < a name = "l00399" > < / a > < span class = "lineno" > 399< / span >   READ1 (pca-> eigen_power);< / div >
< div class = "line" > < a name = "l00400" > < / a > < span class = "lineno" > 400< / span >   READ1 (pca-> random_rotation);< / div >
< div class = "line" > < a name = "l00401" > < / a > < span class = "lineno" > 401< / span >   < span class = "keywordflow" > if< / span > (h == fourcc (< span class = "stringliteral" > " PcAm" < / span > ))< / div >
< div class = "line" > < a name = "l00402" > < / a > < span class = "lineno" > 402< / span >   READ1 (pca-> balanced_bins);< / div >
< div class = "line" > < a name = "l00403" > < / a > < span class = "lineno" > 403< / span >   READVECTOR (pca-> mean);< / div >
< div class = "line" > < a name = "l00404" > < / a > < span class = "lineno" > 404< / span >   READVECTOR (pca-> eigenvalues);< / div >
< div class = "line" > < a name = "l00405" > < / a > < span class = "lineno" > 405< / span >   READVECTOR (pca-> PCAMat);< / div >
< div class = "line" > < a name = "l00406" > < / a > < span class = "lineno" > 406< / span >   lt = pca;< / div >
< div class = "line" > < a name = "l00407" > < / a > < span class = "lineno" > 407< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (h == fourcc (< span class = "stringliteral" > " LTra" < / span > )) {< / div >
< div class = "line" > < a name = "l00408" > < / a > < span class = "lineno" > 408< / span >   lt = < span class = "keyword" > new< / span > LinearTransform ();< / 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 >   READ1 (lt-> have_bias);< / div >
< div class = "line" > < a name = "l00411" > < / a > < span class = "lineno" > 411< / span >   READVECTOR (lt-> A);< / div >
< div class = "line" > < a name = "l00412" > < / a > < span class = "lineno" > 412< / span >   READVECTOR (lt-> b);< / div >
< div class = "line" > < a name = "l00413" > < / a > < span class = "lineno" > 413< / span >   vt = lt;< / div >
< div class = "line" > < a name = "l00414" > < / a > < span class = "lineno" > 414< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (h == fourcc (< span class = "stringliteral" > " RmDT" < / span > )) {< / div >
< div class = "line" > < a name = "l00415" > < / a > < span class = "lineno" > 415< / span >   RemapDimensionsTransform *rdt = < span class = "keyword" > new< / span > RemapDimensionsTransform ();< / div >
< div class = "line" > < a name = "l00416" > < / a > < span class = "lineno" > 416< / span >   READVECTOR (rdt-> map);< / div >
< div class = "line" > < a name = "l00417" > < / a > < span class = "lineno" > 417< / span >   vt = rdt;< / div >
< div class = "line" > < a name = "l00418" > < / a > < span class = "lineno" > 418< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (h == fourcc (< span class = "stringliteral" > " VNrm" < / span > )) {< / div >
< div class = "line" > < a name = "l00419" > < / a > < span class = "lineno" > 419< / span >   NormalizationTransform *nt = < span class = "keyword" > new< / span > NormalizationTransform ();< / div >
< div class = "line" > < a name = "l00420" > < / a > < span class = "lineno" > 420< / span >   READ1 (nt-> norm);< / div >
< div class = "line" > < a name = "l00421" > < / a > < span class = "lineno" > 421< / span >   vt = nt;< / div >
< div class = "line" > < a name = "l00422" > < / a > < span class = "lineno" > 422< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00423" > < / a > < span class = "lineno" > 423< / span >   FAISS_THROW_MSG(< span class = "stringliteral" > " fourcc not recognized" < / span > );< / div >
< div class = "line" > < a name = "l00424" > < / a > < span class = "lineno" > 424< / span >   }< / div >
< div class = "line" > < a name = "l00425" > < / a > < span class = "lineno" > 425< / span >   READ1 (vt-> d_in);< / div >
< div class = "line" > < a name = "l00426" > < / a > < span class = "lineno" > 426< / span >   READ1 (vt-> d_out);< / div >
< div class = "line" > < a name = "l00427" > < / a > < span class = "lineno" > 427< / span >   READ1 (vt-> is_trained);< / div >
< div class = "line" > < a name = "l00428" > < / a > < span class = "lineno" > 428< / span >   < span class = "keywordflow" > return< / span > vt;< / div >
< div class = "line" > < a name = "l00429" > < / a > < span class = "lineno" > 429< / span >   }< / 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 = "keyword" > static< / span > < span class = "keywordtype" > void< / span > read_ProductQuantizer (ProductQuantizer *pq, FILE *f) {< / div >
< div class = "line" > < a name = "l00432" > < / a > < span class = "lineno" > 432< / span >   READ1 (pq-> d);< / div >
< div class = "line" > < a name = "l00433" > < / a > < span class = "lineno" > 433< / span >   READ1 (pq-> M);< / div >
< div class = "line" > < a name = "l00434" > < / a > < span class = "lineno" > 434< / span >   READ1 (pq-> nbits);< / div >
< div class = "line" > < a name = "l00435" > < / a > < span class = "lineno" > 435< / span >   pq-> set_derived_values ();< / div >
< div class = "line" > < a name = "l00436" > < / a > < span class = "lineno" > 436< / span >   READVECTOR (pq-> centroids);< / 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 >   < / div >
< div class = "line" > < a name = "l00439" > < / a > < span class = "lineno" > 439< / span >   < span class = "keyword" > static< / span > < span class = "keywordtype" > void< / span > read_ScalarQuantizer (ScalarQuantizer *ivsc, FILE *f) {< / div >
< div class = "line" > < a name = "l00440" > < / a > < span class = "lineno" > 440< / span >   READ1 (ivsc-> qtype);< / div >
< div class = "line" > < a name = "l00441" > < / a > < span class = "lineno" > 441< / span >   READ1 (ivsc-> rangestat);< / div >
< div class = "line" > < a name = "l00442" > < / a > < span class = "lineno" > 442< / span >   READ1 (ivsc-> rangestat_arg);< / div >
< div class = "line" > < a name = "l00443" > < / a > < span class = "lineno" > 443< / span >   READ1 (ivsc-> d);< / div >
< div class = "line" > < a name = "l00444" > < / a > < span class = "lineno" > 444< / span >   READ1 (ivsc-> code_size);< / div >
< div class = "line" > < a name = "l00445" > < / a > < span class = "lineno" > 445< / span >   READVECTOR (ivsc-> trained);< / 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 >   < / div >
< div class = "line" > < a name = "l00448" > < / a > < span class = "lineno" > 448< / span >   ProductQuantizer * read_ProductQuantizer (< span class = "keyword" > const< / span > < span class = "keywordtype" > char< / span > *fname) {< / div >
< div class = "line" > < a name = "l00449" > < / a > < span class = "lineno" > 449< / span >   FILE *f = fopen (fname, < span class = "stringliteral" > " r" < / span > );< / div >
< div class = "line" > < a name = "l00450" > < / a > < span class = "lineno" > 450< / span >   FAISS_THROW_IF_NOT_FMT (f, < span class = "stringliteral" > " cannot open %s for writing" < / span > , fname);< / div >
< div class = "line" > < a name = "l00451" > < / a > < span class = "lineno" > 451< / span >   ScopeFileCloser closer(f);< / div >
< div class = "line" > < a name = "l00452" > < / a > < span class = "lineno" > 452< / span >   ProductQuantizer *pq = < span class = "keyword" > new< / span > ProductQuantizer();< / div >
< div class = "line" > < a name = "l00453" > < / a > < span class = "lineno" > 453< / span >   ScopeDeleter1< ProductQuantizer> del (pq);< / div >
< div class = "line" > < a name = "l00454" > < / a > < span class = "lineno" > 454< / span >   read_ProductQuantizer(pq, f);< / div >
< div class = "line" > < a name = "l00455" > < / a > < span class = "lineno" > 455< / span >   del.release ();< / div >
< div class = "line" > < a name = "l00456" > < / a > < span class = "lineno" > 456< / span >   < span class = "keywordflow" > return< / span > pq;< / div >
< div class = "line" > < a name = "l00457" > < / a > < span class = "lineno" > 457< / span >   }< / div >
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< div class = "line" > < a name = "l00458" > < / a > < span class = "lineno" > 458< / span >   < / div >
2017-07-18 17:43:35 +08:00
< div class = "line" > < a name = "l00459" > < / a > < span class = "lineno" > 459< / span >   < span class = "keyword" > static< / span > < span class = "keywordtype" > void< / span > read_ivf_header (IndexIVF * ivf, FILE *f,< / div >
< div class = "line" > < a name = "l00460" > < / a > < span class = "lineno" > 460< / span >   < span class = "keywordtype" > bool< / span > include_ids = < span class = "keyword" > true< / span > ) {< / div >
< div class = "line" > < a name = "l00461" > < / a > < span class = "lineno" > 461< / span >   read_index_header (ivf, f);< / div >
< div class = "line" > < a name = "l00462" > < / a > < span class = "lineno" > 462< / span >   READ1 (ivf-> nlist);< / div >
< div class = "line" > < a name = "l00463" > < / a > < span class = "lineno" > 463< / span >   READ1 (ivf-> nprobe);< / div >
< div class = "line" > < a name = "l00464" > < / a > < span class = "lineno" > 464< / span >   ivf-> quantizer = < a class = "code" href = "namespacefaiss.html#aa46fe38a858ecfde7e0fc0744939d5ad" > read_index< / a > (f);< / div >
< div class = "line" > < a name = "l00465" > < / a > < span class = "lineno" > 465< / span >   ivf-> own_fields = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00466" > < / a > < span class = "lineno" > 466< / span >   < span class = "keywordflow" > if< / span > (include_ids) {< / div >
< div class = "line" > < a name = "l00467" > < / a > < span class = "lineno" > 467< / span >   ivf-> ids.resize (ivf-> nlist);< / div >
< div class = "line" > < a name = "l00468" > < / a > < span class = "lineno" > 468< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > size_t< / span > i = 0; i < ivf-> nlist; i++)< / div >
< div class = "line" > < a name = "l00469" > < / a > < span class = "lineno" > 469< / span >   READVECTOR (ivf-> ids[i]);< / 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 >   READ1 (ivf-> maintain_direct_map);< / div >
< div class = "line" > < a name = "l00472" > < / a > < span class = "lineno" > 472< / span >   READVECTOR (ivf-> direct_map);< / div >
< div class = "line" > < a name = "l00473" > < / a > < span class = "lineno" > 473< / span >   }< / div >
< div class = "line" > < a name = "l00474" > < / a > < span class = "lineno" > 474< / span >   < / div >
< div class = "line" > < a name = "l00475" > < / a > < span class = "lineno" > 475< / span >   < span class = "keyword" > static< / span > IndexIVFPQ *read_ivfpq (FILE *f, uint32_t h, < span class = "keywordtype" > bool< / span > try_mmap)< / div >
< div class = "line" > < a name = "l00476" > < / a > < span class = "lineno" > 476< / span >   {< / div >
< div class = "line" > < a name = "l00477" > < / a > < span class = "lineno" > 477< / span >   < / div >
< div class = "line" > < a name = "l00478" > < / a > < span class = "lineno" > 478< / span >   IndexIVFPQR *ivfpqr =< / div >
< div class = "line" > < a name = "l00479" > < / a > < span class = "lineno" > 479< / span >   h == fourcc (< span class = "stringliteral" > " IvQR" < / span > ) ? < span class = "keyword" > new< / span > IndexIVFPQR () : nullptr;< / div >
< div class = "line" > < a name = "l00480" > < / a > < span class = "lineno" > 480< / span >   IndexIVFPQCompact *ivfpqc =< / div >
< div class = "line" > < a name = "l00481" > < / a > < span class = "lineno" > 481< / span >   h == fourcc (< span class = "stringliteral" > " IvPC" < / span > ) ? < span class = "keyword" > new< / span > IndexIVFPQCompact () : nullptr;< / div >
< div class = "line" > < a name = "l00482" > < / a > < span class = "lineno" > 482< / span >   IndexIVFPQ * ivpq = ivfpqr ? ivfpqr : ivfpqc ? ivfpqc : < span class = "keyword" > new< / span > IndexIVFPQ ();< / div >
< div class = "line" > < a name = "l00483" > < / a > < span class = "lineno" > 483< / span >   read_ivf_header (ivpq, f, !ivfpqc);< / div >
< div class = "line" > < a name = "l00484" > < / a > < span class = "lineno" > 484< / span >   READ1 (ivpq-> by_residual);< / div >
< div class = "line" > < a name = "l00485" > < / a > < span class = "lineno" > 485< / span >   READ1 (ivpq-> code_size);< / div >
< div class = "line" > < a name = "l00486" > < / a > < span class = "lineno" > 486< / span >   read_ProductQuantizer (& ivpq-> pq, f);< / div >
< div class = "line" > < a name = "l00487" > < / a > < span class = "lineno" > 487< / span >   < span class = "keywordflow" > if< / span > (!ivfpqc) {< / div >
< div class = "line" > < a name = "l00488" > < / a > < span class = "lineno" > 488< / span >   ivpq-> codes.resize (ivpq-> nlist);< / div >
< div class = "line" > < a name = "l00489" > < / a > < span class = "lineno" > 489< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > size_t< / span > i = 0; i < ivpq-> nlist; i++)< / div >
< div class = "line" > < a name = "l00490" > < / a > < span class = "lineno" > 490< / span >   READVECTOR (ivpq-> codes[i]);< / div >
< div class = "line" > < a name = "l00491" > < / a > < span class = "lineno" > 491< / span >   }< / div >
< div class = "line" > < a name = "l00492" > < / a > < span class = "lineno" > 492< / span >   < span class = "comment" > // precomputed table not stored. It is cheaper to recompute it< / span > < / div >
< div class = "line" > < a name = "l00493" > < / a > < span class = "lineno" > 493< / span >   ivpq-> use_precomputed_table = 0;< / div >
< div class = "line" > < a name = "l00494" > < / a > < span class = "lineno" > 494< / span >   < span class = "keywordflow" > if< / span > (ivpq-> by_residual)< / div >
< div class = "line" > < a name = "l00495" > < / a > < span class = "lineno" > 495< / span >   ivpq-> precompute_table ();< / div >
< div class = "line" > < a name = "l00496" > < / a > < span class = "lineno" > 496< / span >   < span class = "keywordflow" > if< / span > (ivfpqr) {< / div >
< div class = "line" > < a name = "l00497" > < / a > < span class = "lineno" > 497< / span >   read_ProductQuantizer (& ivfpqr-> refine_pq, f);< / div >
< div class = "line" > < a name = "l00498" > < / a > < span class = "lineno" > 498< / span >   READVECTOR (ivfpqr-> refine_codes);< / div >
< div class = "line" > < a name = "l00499" > < / a > < span class = "lineno" > 499< / span >   READ1 (ivfpqr-> k_factor);< / div >
< div class = "line" > < a name = "l00500" > < / a > < span class = "lineno" > 500< / span >   }< / div >
< div class = "line" > < a name = "l00501" > < / a > < span class = "lineno" > 501< / span >   < span class = "keywordflow" > if< / span > (ivfpqc) {< / div >
< div class = "line" > < a name = "l00502" > < / a > < span class = "lineno" > 502< / span >   < span class = "keywordflow" > if< / span > (!try_mmap) {< / div >
< div class = "line" > < a name = "l00503" > < / a > < span class = "lineno" > 503< / span >   READTABPAD16 (ivfpqc-> limits, uint32_t, ivfpqc-> nlist + 1);< / div >
< div class = "line" > < a name = "l00504" > < / a > < span class = "lineno" > 504< / span >   READTABPAD16 (ivfpqc-> compact_ids, uint32_t, ivfpqc-> ntotal);< / div >
< div class = "line" > < a name = "l00505" > < / a > < span class = "lineno" > 505< / span >   READTABPAD16 (ivfpqc-> compact_codes, uint8_t,< / div >
< div class = "line" > < a name = "l00506" > < / a > < span class = "lineno" > 506< / span >   ivfpqc-> ntotal * ivfpqc-> code_size);< / div >
< div class = "line" > < a name = "l00507" > < / a > < span class = "lineno" > 507< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00508" > < / a > < span class = "lineno" > 508< / span >   < span class = "keywordtype" > long< / span > offset_limits, offset_compact_ids, offset_compact_codes;< / div >
< div class = "line" > < a name = "l00509" > < / a > < span class = "lineno" > 509< / span >   TABOFFSETPAD16 (offset_limits, uint32_t, ivfpqc-> nlist + 1);< / div >
< div class = "line" > < a name = "l00510" > < / a > < span class = "lineno" > 510< / span >   TABOFFSETPAD16 (offset_compact_ids, uint32_t, ivfpqc-> ntotal);< / div >
< div class = "line" > < a name = "l00511" > < / a > < span class = "lineno" > 511< / span >   TABOFFSETPAD16 (offset_compact_codes, uint8_t,< / div >
< div class = "line" > < a name = "l00512" > < / a > < span class = "lineno" > 512< / span >   ivfpqc-> ntotal * ivfpqc-> code_size);< / div >
< div class = "line" > < a name = "l00513" > < / a > < span class = "lineno" > 513< / span >   ivfpqc-> mmap_length = ftell (f);< / div >
< div class = "line" > < a name = "l00514" > < / a > < span class = "lineno" > 514< / span >   < span class = "comment" > // mmap the whole file< / span > < / div >
< div class = "line" > < a name = "l00515" > < / a > < span class = "lineno" > 515< / span >   ivfpqc-> mmap_buffer = (< span class = "keywordtype" > char< / span > *)mmap (< / div >
< div class = "line" > < a name = "l00516" > < / a > < span class = "lineno" > 516< / span >   < span class = "keyword" > nullptr< / span > , ivfpqc-> mmap_length,< / div >
< div class = "line" > < a name = "l00517" > < / a > < span class = "lineno" > 517< / span >   PROT_READ, MAP_SHARED, fileno (f), 0);< / div >
< div class = "line" > < a name = "l00518" > < / a > < span class = "lineno" > 518< / span >   < span class = "keywordflow" > if< / span > (!ivfpqc-> mmap_buffer) {< / div >
< div class = "line" > < a name = "l00519" > < / a > < span class = "lineno" > 519< / span >   perror (< span class = "stringliteral" > " mmap failed" < / span > );< / div >
< div class = "line" > < a name = "l00520" > < / a > < span class = "lineno" > 520< / span >   abort ();< / div >
< div class = "line" > < a name = "l00521" > < / a > < span class = "lineno" > 521< / span >   }< / div >
< div class = "line" > < a name = "l00522" > < / a > < span class = "lineno" > 522< / span >   < span class = "comment" > // at this point the file can be closed, it does not< / span > < / div >
< div class = "line" > < a name = "l00523" > < / a > < span class = "lineno" > 523< / span >   < span class = "comment" > // invalidate the mapping< / span > < / div >
< div class = "line" > < a name = "l00524" > < / a > < span class = "lineno" > 524< / span >   ivfpqc-> limits = (uint32_t*)(ivfpqc-> mmap_buffer + offset_limits);< / div >
< div class = "line" > < a name = "l00525" > < / a > < span class = "lineno" > 525< / span >   ivfpqc-> compact_ids = (uint32_t*)(ivfpqc-> mmap_buffer +< / div >
< div class = "line" > < a name = "l00526" > < / a > < span class = "lineno" > 526< / span >   offset_compact_ids);< / div >
< div class = "line" > < a name = "l00527" > < / a > < span class = "lineno" > 527< / span >   ivfpqc-> compact_codes = (uint8_t*)(ivfpqc-> mmap_buffer +< / div >
< div class = "line" > < a name = "l00528" > < / a > < span class = "lineno" > 528< / span >   offset_compact_codes);< / 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 >   }< / div >
< div class = "line" > < a name = "l00531" > < / a > < span class = "lineno" > 531< / span >   < span class = "keywordflow" > return< / span > ivpq;< / div >
< div class = "line" > < a name = "l00532" > < / a > < span class = "lineno" > 532< / span >   }< / 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 >   < span class = "keywordtype" > int< / span > read_old_fmt_hack = 0;< / div >
< div class = "line" > < a name = "l00535" > < / a > < span class = "lineno" > 535< / span >   < / div >
< div class = "line" > < a name = "l00536" > < / a > < span class = "lineno" > < a class = "line" href = "namespacefaiss.html#aa46fe38a858ecfde7e0fc0744939d5ad" > 536< / a > < / span >   < a class = "code" href = "structfaiss_1_1Index.html" > Index< / a > *< a class = "code" href = "namespacefaiss.html#aa46fe38a858ecfde7e0fc0744939d5ad" > read_index< / a > (FILE * f, < span class = "keywordtype" > bool< / span > try_mmap) {< / div >
< div class = "line" > < a name = "l00537" > < / a > < span class = "lineno" > 537< / span >   < a class = "code" href = "structfaiss_1_1Index.html" > Index< / a > * idx = < span class = "keyword" > nullptr< / span > ;< / div >
< div class = "line" > < a name = "l00538" > < / a > < span class = "lineno" > 538< / span >   uint32_t h;< / div >
< div class = "line" > < a name = "l00539" > < / a > < span class = "lineno" > 539< / span >   READ1 (h);< / div >
< div class = "line" > < a name = "l00540" > < / a > < span class = "lineno" > 540< / span >   < span class = "keywordflow" > if< / span > (h == fourcc (< span class = "stringliteral" > " IxFI" < / span > ) || h == fourcc (< span class = "stringliteral" > " IxF2" < / span > )) {< / div >
< div class = "line" > < a name = "l00541" > < / a > < span class = "lineno" > 541< / span >   < a class = "code" href = "structfaiss_1_1IndexFlat.html" > IndexFlat< / a > *idxf;< / div >
< div class = "line" > < a name = "l00542" > < / a > < span class = "lineno" > 542< / span >   < span class = "keywordflow" > if< / span > (h == fourcc (< span class = "stringliteral" > " IxFI" < / span > )) idxf = < span class = "keyword" > new< / span > < a class = "code" href = "structfaiss_1_1IndexFlatIP.html" > IndexFlatIP< / a > ();< / div >
< div class = "line" > < a name = "l00543" > < / a > < span class = "lineno" > 543< / span >   < span class = "keywordflow" > else< / span > idxf = < span class = "keyword" > new< / span > < a class = "code" href = "structfaiss_1_1IndexFlatL2.html" > IndexFlatL2< / a > ();< / div >
< div class = "line" > < a name = "l00544" > < / a > < span class = "lineno" > 544< / span >   read_index_header (idxf, f);< / div >
< div class = "line" > < a name = "l00545" > < / a > < span class = "lineno" > 545< / span >   READVECTOR (idxf-> < a class = "code" href = "structfaiss_1_1IndexFlat.html#a9001de47890fe5d2eced9551d3613d47" > xb< / a > );< / div >
< div class = "line" > < a name = "l00546" > < / a > < span class = "lineno" > 546< / span >   FAISS_THROW_IF_NOT (idxf-> < a class = "code" href = "structfaiss_1_1IndexFlat.html#a9001de47890fe5d2eced9551d3613d47" > xb< / a > .size() == idxf-> < a class = "code" href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > ntotal< / a > * idxf-> < a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > );< / div >
< div class = "line" > < a name = "l00547" > < / a > < span class = "lineno" > 547< / span >   < span class = "comment" > // leak!< / span > < / div >
< div class = "line" > < a name = "l00548" > < / a > < span class = "lineno" > 548< / span >   idx = idxf;< / div >
< div class = "line" > < a name = "l00549" > < / a > < span class = "lineno" > 549< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (h == fourcc(< span class = "stringliteral" > " IxHE" < / span > ) || h == fourcc(< span class = "stringliteral" > " IxHe" < / span > )) {< / div >
< div class = "line" > < a name = "l00550" > < / a > < span class = "lineno" > 550< / span >   < a class = "code" href = "structfaiss_1_1IndexLSH.html" > IndexLSH< / a > * idxl = < span class = "keyword" > new< / span > < a class = "code" href = "structfaiss_1_1IndexLSH.html" > IndexLSH< / a > ();< / div >
< div class = "line" > < a name = "l00551" > < / a > < span class = "lineno" > 551< / span >   read_index_header (idxl, f);< / div >
< div class = "line" > < a name = "l00552" > < / a > < span class = "lineno" > 552< / span >   READ1 (idxl-> < a class = "code" href = "structfaiss_1_1IndexLSH.html#af8c48006f210f0cbbf45ec9972558d20" > nbits< / a > );< / div >
< div class = "line" > < a name = "l00553" > < / a > < span class = "lineno" > 553< / span >   READ1 (idxl-> < a class = "code" href = "structfaiss_1_1IndexLSH.html#a71e9142e1256705f125ded9d647f4497" > rotate_data< / a > );< / div >
< div class = "line" > < a name = "l00554" > < / a > < span class = "lineno" > 554< / span >   READ1 (idxl-> < a class = "code" href = "structfaiss_1_1IndexLSH.html#a5d4d6ea1fc709605d5b2061d1bce27d6" > train_thresholds< / a > );< / div >
< div class = "line" > < a name = "l00555" > < / a > < span class = "lineno" > 555< / span >   READVECTOR (idxl-> < a class = "code" href = "structfaiss_1_1IndexLSH.html#ae203ad895b15ae16fc1a748661b84df3" > thresholds< / a > );< / div >
< div class = "line" > < a name = "l00556" > < / a > < span class = "lineno" > 556< / span >   READ1 (idxl-> < a class = "code" href = "structfaiss_1_1IndexLSH.html#a0116f529bc5de64a7ef142caa652d9f6" > bytes_per_vec< / a > );< / div >
< div class = "line" > < a name = "l00557" > < / a > < span class = "lineno" > 557< / span >   < span class = "keywordflow" > if< / span > (h == fourcc(< span class = "stringliteral" > " IxHE" < / span > )) {< / div >
< div class = "line" > < a name = "l00558" > < / a > < span class = "lineno" > 558< / span >   FAISS_THROW_IF_NOT_FMT (idxl-> < a class = "code" href = "structfaiss_1_1IndexLSH.html#af8c48006f210f0cbbf45ec9972558d20" > nbits< / a > % 64 == 0,< / div >
< div class = "line" > < a name = "l00559" > < / a > < span class = "lineno" > 559< / span >   < span class = "stringliteral" > " can only read old format IndexLSH with " < / span > < / div >
< div class = "line" > < a name = "l00560" > < / a > < span class = "lineno" > 560< / span >   < span class = "stringliteral" > " nbits multiple of 64 (got %d)" < / span > ,< / div >
< div class = "line" > < a name = "l00561" > < / a > < span class = "lineno" > 561< / span >   (< span class = "keywordtype" > int< / span > ) idxl-> < a class = "code" href = "structfaiss_1_1IndexLSH.html#af8c48006f210f0cbbf45ec9972558d20" > nbits< / a > );< / div >
< div class = "line" > < a name = "l00562" > < / a > < span class = "lineno" > 562< / span >   < span class = "comment" > // leak< / span > < / div >
< div class = "line" > < a name = "l00563" > < / a > < span class = "lineno" > 563< / span >   idxl-> < a class = "code" href = "structfaiss_1_1IndexLSH.html#a0116f529bc5de64a7ef142caa652d9f6" > bytes_per_vec< / a > *= 8;< / 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 >   {< / div >
< div class = "line" > < a name = "l00566" > < / a > < span class = "lineno" > 566< / span >   < a class = "code" href = "structfaiss_1_1RandomRotationMatrix.html" > RandomRotationMatrix< / a > *rrot = < span class = "keyword" > dynamic_cast< < / span > < a class = "code" href = "structfaiss_1_1RandomRotationMatrix.html" > RandomRotationMatrix< / a > *< span class = "keyword" > > < / span > < / div >
< div class = "line" > < a name = "l00567" > < / a > < span class = "lineno" > 567< / span >   (read_VectorTransform (f));< / div >
< div class = "line" > < a name = "l00568" > < / a > < span class = "lineno" > 568< / span >   FAISS_THROW_IF_NOT_MSG(rrot, < span class = "stringliteral" > " expected a random rotation" < / span > );< / div >
< div class = "line" > < a name = "l00569" > < / a > < span class = "lineno" > 569< / span >   idxl-> < a class = "code" href = "structfaiss_1_1IndexLSH.html#a71c8aa08d3bd0483ccc0f11c22cd3cd8" > rrot< / a > = *rrot;< / div >
< div class = "line" > < a name = "l00570" > < / a > < span class = "lineno" > 570< / span >   < span class = "keyword" > delete< / span > rrot;< / 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 >   READVECTOR (idxl-> < a class = "code" href = "structfaiss_1_1IndexLSH.html#a55c0f1127850af0d06ef22fc8b791572" > codes< / a > );< / div >
< div class = "line" > < a name = "l00573" > < / a > < span class = "lineno" > 573< / span >   FAISS_THROW_IF_NOT (idxl-> < a class = "code" href = "structfaiss_1_1IndexLSH.html#a71c8aa08d3bd0483ccc0f11c22cd3cd8" > rrot< / a > .d_in == idxl-> < a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > & & < / div >
< div class = "line" > < a name = "l00574" > < / a > < span class = "lineno" > 574< / span >   idxl-> < a class = "code" href = "structfaiss_1_1IndexLSH.html#a71c8aa08d3bd0483ccc0f11c22cd3cd8" > rrot< / a > .< a class = "code" href = "structfaiss_1_1VectorTransform.html#a589d612f7b1773614619a0cbecd728a9" > d_out< / a > == idxl-> < a class = "code" href = "structfaiss_1_1IndexLSH.html#af8c48006f210f0cbbf45ec9972558d20" > nbits< / a > );< / div >
< div class = "line" > < a name = "l00575" > < / a > < span class = "lineno" > 575< / span >   FAISS_THROW_IF_NOT (< / div >
< div class = "line" > < a name = "l00576" > < / a > < span class = "lineno" > 576< / span >   idxl-> < a class = "code" href = "structfaiss_1_1IndexLSH.html#a55c0f1127850af0d06ef22fc8b791572" > codes< / a > .size() == idxl-> < a class = "code" href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > ntotal< / a > * idxl-> < a class = "code" href = "structfaiss_1_1IndexLSH.html#a0116f529bc5de64a7ef142caa652d9f6" > bytes_per_vec< / a > );< / div >
< div class = "line" > < a name = "l00577" > < / a > < span class = "lineno" > 577< / span >   idx = idxl;< / div >
< div class = "line" > < a name = "l00578" > < / a > < span class = "lineno" > 578< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (h == fourcc (< span class = "stringliteral" > " IxPQ" < / span > ) || h == fourcc (< span class = "stringliteral" > " IxPo" < / span > ) ||< / div >
< div class = "line" > < a name = "l00579" > < / a > < span class = "lineno" > 579< / span >   h == fourcc (< span class = "stringliteral" > " IxPq" < / span > )) {< / div >
< div class = "line" > < a name = "l00580" > < / a > < span class = "lineno" > 580< / span >   < span class = "comment" > // IxPQ and IxPo were merged into the same IndexPQ object< / span > < / div >
< div class = "line" > < a name = "l00581" > < / a > < span class = "lineno" > 581< / span >   < a class = "code" href = "structfaiss_1_1IndexPQ.html" > IndexPQ< / a > * idxp =< span class = "keyword" > new< / span > < a class = "code" href = "structfaiss_1_1IndexPQ.html" > IndexPQ< / a > ();< / div >
< div class = "line" > < a name = "l00582" > < / a > < span class = "lineno" > 582< / span >   read_index_header (idxp, f);< / div >
< div class = "line" > < a name = "l00583" > < / a > < span class = "lineno" > 583< / span >   read_ProductQuantizer (& idxp-> < a class = "code" href = "structfaiss_1_1IndexPQ.html#aa7b7cfe0c8dfd37c8a940fd93d12dc88" > pq< / a > , f);< / div >
< div class = "line" > < a name = "l00584" > < / a > < span class = "lineno" > 584< / span >   READVECTOR (idxp-> < a class = "code" href = "structfaiss_1_1IndexPQ.html#a490b64b12384951ed66548a3a48f91e5" > codes< / a > );< / div >
< div class = "line" > < a name = "l00585" > < / a > < span class = "lineno" > 585< / span >   < span class = "keywordflow" > if< / span > (h == fourcc (< span class = "stringliteral" > " IxPo" < / span > ) || h == fourcc (< span class = "stringliteral" > " IxPq" < / span > )) {< / div >
< div class = "line" > < a name = "l00586" > < / a > < span class = "lineno" > 586< / span >   READ1 (idxp-> search_type);< / div >
< div class = "line" > < a name = "l00587" > < / a > < span class = "lineno" > 587< / span >   READ1 (idxp-> encode_signs);< / div >
< div class = "line" > < a name = "l00588" > < / a > < span class = "lineno" > 588< / span >   READ1 (idxp-> < a class = "code" href = "structfaiss_1_1IndexPQ.html#aff455f2adff6064939494dad6e3017bc" > polysemous_ht< / a > );< / div >
< div class = "line" > < a name = "l00589" > < / a > < span class = "lineno" > 589< / span >   }< / div >
< div class = "line" > < a name = "l00590" > < / a > < span class = "lineno" > 590< / span >   < span class = "comment" > // Old versoins of PQ all had metric_type set to INNER_PRODUCT< / span > < / div >
< div class = "line" > < a name = "l00591" > < / a > < span class = "lineno" > 591< / span >   < span class = "comment" > // when they were in fact using L2. Therefore, we force metric type< / span > < / div >
< div class = "line" > < a name = "l00592" > < / a > < span class = "lineno" > 592< / span >   < span class = "comment" > // to L2 when the old format is detected< / span > < / div >
< div class = "line" > < a name = "l00593" > < / a > < span class = "lineno" > 593< / span >   < span class = "keywordflow" > if< / span > (h == fourcc (< span class = "stringliteral" > " IxPQ" < / span > ) || h == fourcc (< span class = "stringliteral" > " IxPo" < / span > )) {< / div >
< div class = "line" > < a name = "l00594" > < / a > < span class = "lineno" > 594< / span >   idxp-> < a class = "code" href = "structfaiss_1_1Index.html#a8e18f641854b2bde83ecff0a2f9a6f4e" > metric_type< / a > = METRIC_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 >   idx = idxp;< / div >
2017-09-08 19:39:41 +08:00
< div class = "line" > < a name = "l00597" > < / a > < span class = "lineno" > 597< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (h == fourcc (< span class = "stringliteral" > " IvFl" < / span > ) || h == fourcc(< span class = "stringliteral" > " IvFL" < / span > )) {< / div >
2017-07-18 17:43:35 +08:00
< div class = "line" > < a name = "l00598" > < / a > < span class = "lineno" > 598< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFFlat.html" > IndexIVFFlat< / a > * ivfl = < span class = "keyword" > new< / span > < a class = "code" href = "structfaiss_1_1IndexIVFFlat.html" > IndexIVFFlat< / a > ();< / div >
< div class = "line" > < a name = "l00599" > < / a > < span class = "lineno" > 599< / span >   read_ivf_header (ivfl, f);< / div >
2017-09-08 19:39:41 +08:00
< div class = "line" > < a name = "l00600" > < / a > < span class = "lineno" > 600< / span >   ivfl-> < a class = "code" href = "structfaiss_1_1IndexIVF.html#a46d1aeddb60643c5b3f096147c3e028f" > code_size< / a > = ivfl-> < a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > * < span class = "keyword" > sizeof< / span > (float);< / div >
< div class = "line" > < a name = "l00601" > < / a > < span class = "lineno" > 601< / span >   ivfl-> codes.resize (ivfl-> < a class = "code" href = "structfaiss_1_1IndexIVF.html#ab38fde4c923abefc4185eb7450b5b95b" > nlist< / a > );< / div >
< div class = "line" > < a name = "l00602" > < / a > < span class = "lineno" > 602< / span >   < span class = "keywordflow" > if< / span > (h == fourcc (< span class = "stringliteral" > " IvFL" < / span > )) {< / div >
< div class = "line" > < a name = "l00603" > < / a > < span class = "lineno" > 603< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > size_t< / span > i = 0; i < ivfl-> < a class = "code" href = "structfaiss_1_1IndexIVF.html#ab38fde4c923abefc4185eb7450b5b95b" > nlist< / a > ; i++) {< / div >
< div class = "line" > < a name = "l00604" > < / a > < span class = "lineno" > 604< / span >   READVECTOR (ivfl-> codes[i]);< / div >
< div class = "line" > < a name = "l00605" > < / a > < span class = "lineno" > 605< / span >   }< / div >
< div class = "line" > < a name = "l00606" > < / a > < span class = "lineno" > 606< / span >   } < span class = "keywordflow" > else< / span > { < span class = "comment" > // old format< / span > < / div >
< div class = "line" > < a name = "l00607" > < / a > < span class = "lineno" > 607< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > size_t< / span > i = 0; i < ivfl-> < a class = "code" href = "structfaiss_1_1IndexIVF.html#ab38fde4c923abefc4185eb7450b5b95b" > nlist< / a > ; i++) {< / div >
< div class = "line" > < a name = "l00608" > < / a > < span class = "lineno" > 608< / span >   std::vector< float> vec;< / div >
< div class = "line" > < a name = "l00609" > < / a > < span class = "lineno" > 609< / span >   READVECTOR (vec);< / div >
< div class = "line" > < a name = "l00610" > < / a > < span class = "lineno" > 610< / span >   ivfl-> codes[i].resize(vec.size() * < span class = "keyword" > sizeof< / span > (float));< / div >
< div class = "line" > < a name = "l00611" > < / a > < span class = "lineno" > 611< / span >   memcpy(ivfl-> codes[i].data(), vec.data(),< / div >
< div class = "line" > < a name = "l00612" > < / a > < span class = "lineno" > 612< / span >   ivfl-> codes[i].size());< / div >
< div class = "line" > < a name = "l00613" > < / a > < span class = "lineno" > 613< / span >   }< / div >
< div class = "line" > < a name = "l00614" > < / a > < span class = "lineno" > 614< / span >   }< / div >
< div class = "line" > < a name = "l00615" > < / a > < span class = "lineno" > 615< / span >   idx = ivfl;< / div >
< div class = "line" > < a name = "l00616" > < / a > < span class = "lineno" > 616< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (h == fourcc (< span class = "stringliteral" > " IxSQ" < / span > )) {< / div >
< div class = "line" > < a name = "l00617" > < / a > < span class = "lineno" > 617< / span >   < a class = "code" href = "structfaiss_1_1IndexScalarQuantizer.html" > IndexScalarQuantizer< / a > * idxs = < span class = "keyword" > new< / span > < a class = "code" href = "structfaiss_1_1IndexScalarQuantizer.html" > IndexScalarQuantizer< / a > ();< / div >
< div class = "line" > < a name = "l00618" > < / a > < span class = "lineno" > 618< / span >   read_index_header (idxs, f);< / div >
< div class = "line" > < a name = "l00619" > < / a > < span class = "lineno" > 619< / span >   read_ScalarQuantizer (& idxs-> < a class = "code" href = "structfaiss_1_1IndexScalarQuantizer.html#a71381f74754d8a54812e80af46a2a83a" > sq< / a > , f);< / div >
< div class = "line" > < a name = "l00620" > < / a > < span class = "lineno" > 620< / span >   READVECTOR (idxs-> < a class = "code" href = "structfaiss_1_1IndexScalarQuantizer.html#a861fa059f9d4ced9147e08193a2be9be" > codes< / a > );< / div >
< div class = "line" > < a name = "l00621" > < / a > < span class = "lineno" > 621< / span >   idxs-> code_size = idxs-> < a class = "code" href = "structfaiss_1_1IndexScalarQuantizer.html#a71381f74754d8a54812e80af46a2a83a" > sq< / a > .< a class = "code" href = "structfaiss_1_1ScalarQuantizer.html#a647b8774e4cd8ca5623a194f5c7f8a33" > code_size< / a > ;< / div >
< div class = "line" > < a name = "l00622" > < / a > < span class = "lineno" > 622< / span >   idx = idxs;< / div >
< div class = "line" > < a name = "l00623" > < / a > < span class = "lineno" > 623< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (h == fourcc (< span class = "stringliteral" > " IvSQ" < / span > )) {< / div >
< div class = "line" > < a name = "l00624" > < / a > < span class = "lineno" > 624< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFScalarQuantizer.html" > IndexIVFScalarQuantizer< / a > * ivsc = < span class = "keyword" > new< / span > < a class = "code" href = "structfaiss_1_1IndexIVFScalarQuantizer.html" > IndexIVFScalarQuantizer< / a > ();< / div >
< div class = "line" > < a name = "l00625" > < / a > < span class = "lineno" > 625< / span >   read_ivf_header (ivsc, f);< / div >
< div class = "line" > < a name = "l00626" > < / a > < span class = "lineno" > 626< / span >   ivsc-> codes.resize(ivsc-> < a class = "code" href = "structfaiss_1_1IndexIVF.html#ab38fde4c923abefc4185eb7450b5b95b" > nlist< / a > );< / div >
< div class = "line" > < a name = "l00627" > < / a > < span class = "lineno" > 627< / span >   read_ScalarQuantizer (& ivsc-> sq, f);< / div >
< div class = "line" > < a name = "l00628" > < / a > < span class = "lineno" > 628< / span >   READ1 (ivsc-> < a class = "code" href = "structfaiss_1_1IndexIVF.html#a46d1aeddb60643c5b3f096147c3e028f" > code_size< / a > );< / div >
< div class = "line" > < a name = "l00629" > < / a > < span class = "lineno" > 629< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > i = 0; i < ivsc-> < a class = "code" href = "structfaiss_1_1IndexIVF.html#ab38fde4c923abefc4185eb7450b5b95b" > nlist< / a > ; i++)< / div >
< div class = "line" > < a name = "l00630" > < / a > < span class = "lineno" > 630< / span >   READVECTOR (ivsc-> codes[i]);< / div >
< div class = "line" > < a name = "l00631" > < / a > < span class = "lineno" > 631< / span >   idx = ivsc;< / div >
< div class = "line" > < a name = "l00632" > < / a > < span class = "lineno" > 632< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (h == fourcc (< span class = "stringliteral" > " IvPQ" < / span > ) || h == fourcc (< span class = "stringliteral" > " IvQR" < / span > ) ||< / div >
< div class = "line" > < a name = "l00633" > < / a > < span class = "lineno" > 633< / span >   h == fourcc (< span class = "stringliteral" > " IvPC" < / 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 >   idx = read_ivfpq (f, h, try_mmap);< / div >
< div class = "line" > < a name = "l00636" > < / a > < span class = "lineno" > 636< / span >   < / div >
< div class = "line" > < a name = "l00637" > < / a > < span class = "lineno" > 637< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (h == fourcc (< span class = "stringliteral" > " IxPT" < / span > )) {< / div >
< div class = "line" > < a name = "l00638" > < / a > < span class = "lineno" > 638< / span >   < a class = "code" href = "structfaiss_1_1IndexPreTransform.html" > IndexPreTransform< / a > * ixpt = < span class = "keyword" > new< / span > < a class = "code" href = "structfaiss_1_1IndexPreTransform.html" > IndexPreTransform< / a > ();< / div >
< div class = "line" > < a name = "l00639" > < / a > < span class = "lineno" > 639< / span >   ixpt-> < a class = "code" href = "structfaiss_1_1IndexPreTransform.html#ae5ec3f184eb211e7d6e204082b52c8c0" > own_fields< / a > = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00640" > < / a > < span class = "lineno" > 640< / span >   read_index_header (ixpt, f);< / div >
< div class = "line" > < a name = "l00641" > < / a > < span class = "lineno" > 641< / span >   < span class = "keywordtype" > int< / span > nt;< / div >
< div class = "line" > < a name = "l00642" > < / a > < span class = "lineno" > 642< / span >   < span class = "keywordflow" > if< / span > (read_old_fmt_hack == 2) {< / div >
< div class = "line" > < a name = "l00643" > < / a > < span class = "lineno" > 643< / span >   nt = 1;< / div >
< div class = "line" > < a name = "l00644" > < / a > < span class = "lineno" > 644< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00645" > < / a > < span class = "lineno" > 645< / span >   READ1 (nt);< / div >
< div class = "line" > < a name = "l00646" > < / a > < span class = "lineno" > 646< / span >   }< / div >
< div class = "line" > < a name = "l00647" > < / a > < span class = "lineno" > 647< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > i = 0; i < nt; i++) {< / div >
< div class = "line" > < a name = "l00648" > < / a > < span class = "lineno" > 648< / span >   ixpt-> chain.push_back (read_VectorTransform (f));< / div >
< div class = "line" > < a name = "l00649" > < / a > < span class = "lineno" > 649< / span >   }< / div >
< div class = "line" > < a name = "l00650" > < / a > < span class = "lineno" > 650< / span >   ixpt-> < a class = "code" href = "structfaiss_1_1IndexPreTransform.html#aee3cbbe7915ec9ed13d59ca9276bdefc" > index< / a > = < a class = "code" href = "namespacefaiss.html#aa46fe38a858ecfde7e0fc0744939d5ad" > read_index< / a > (f);< / div >
< div class = "line" > < a name = "l00651" > < / a > < span class = "lineno" > 651< / span >   idx = ixpt;< / div >
< div class = "line" > < a name = "l00652" > < / a > < span class = "lineno" > 652< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (h == fourcc (< span class = "stringliteral" > " Imiq" < / span > )) {< / div >
< div class = "line" > < a name = "l00653" > < / a > < span class = "lineno" > 653< / span >   < a class = "code" href = "structfaiss_1_1MultiIndexQuantizer.html" > MultiIndexQuantizer< / a > * imiq = < span class = "keyword" > new< / span > < a class = "code" href = "structfaiss_1_1MultiIndexQuantizer.html" > MultiIndexQuantizer< / a > ();< / div >
< div class = "line" > < a name = "l00654" > < / a > < span class = "lineno" > 654< / span >   read_index_header (imiq, f);< / div >
< div class = "line" > < a name = "l00655" > < / a > < span class = "lineno" > 655< / span >   read_ProductQuantizer (& imiq-> pq, f);< / div >
< div class = "line" > < a name = "l00656" > < / a > < span class = "lineno" > 656< / span >   idx = imiq;< / div >
< div class = "line" > < a name = "l00657" > < / a > < span class = "lineno" > 657< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (h == fourcc (< span class = "stringliteral" > " IxRF" < / span > )) {< / div >
< div class = "line" > < a name = "l00658" > < / a > < span class = "lineno" > 658< / span >   < a class = "code" href = "structfaiss_1_1IndexRefineFlat.html" > IndexRefineFlat< / a > *idxrf = < span class = "keyword" > new< / span > < a class = "code" href = "structfaiss_1_1IndexRefineFlat.html" > IndexRefineFlat< / a > ();< / div >
< div class = "line" > < a name = "l00659" > < / a > < span class = "lineno" > 659< / span >   read_index_header (idxrf, f);< / div >
< div class = "line" > < a name = "l00660" > < / a > < span class = "lineno" > 660< / span >   idxrf-> < a class = "code" href = "structfaiss_1_1IndexRefineFlat.html#a4acc0b3a8c33e5dd8851448ac162dfd0" > base_index< / a > = < a class = "code" href = "namespacefaiss.html#aa46fe38a858ecfde7e0fc0744939d5ad" > read_index< / a > (f);< / div >
< div class = "line" > < a name = "l00661" > < / a > < span class = "lineno" > 661< / span >   idxrf-> < a class = "code" href = "structfaiss_1_1IndexRefineFlat.html#aaf0f6a094de0e9409effa81bedb9c7e2" > own_fields< / a > = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00662" > < / a > < span class = "lineno" > 662< / span >   < a class = "code" href = "structfaiss_1_1IndexFlat.html" > IndexFlat< / a > *rf = < span class = "keyword" > dynamic_cast< < / span > < a class = "code" href = "structfaiss_1_1IndexFlat.html" > IndexFlat< / a > *< span class = "keyword" > > < / span > (< a class = "code" href = "namespacefaiss.html#aa46fe38a858ecfde7e0fc0744939d5ad" > read_index< / a > (f));< / div >
< div class = "line" > < a name = "l00663" > < / a > < span class = "lineno" > 663< / span >   std::swap (*rf, idxrf-> < a class = "code" href = "structfaiss_1_1IndexRefineFlat.html#aab99f32713ece942ccefccf306292ca0" > refine_index< / a > );< / div >
< div class = "line" > < a name = "l00664" > < / a > < span class = "lineno" > 664< / span >   < span class = "keyword" > delete< / span > rf;< / div >
< div class = "line" > < a name = "l00665" > < / a > < span class = "lineno" > 665< / span >   READ1 (idxrf-> < a class = "code" href = "structfaiss_1_1IndexRefineFlat.html#a7383fabb28db5b0df45ca4ea81f7acd4" > k_factor< / a > );< / div >
< div class = "line" > < a name = "l00666" > < / a > < span class = "lineno" > 666< / span >   idx = idxrf;< / div >
< div class = "line" > < a name = "l00667" > < / a > < span class = "lineno" > 667< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (h == fourcc (< span class = "stringliteral" > " IxMp" < / span > ) || h == fourcc (< span class = "stringliteral" > " IxM2" < / span > )) {< / div >
< div class = "line" > < a name = "l00668" > < / a > < span class = "lineno" > 668< / span >   < span class = "keywordtype" > bool< / span > is_map2 = h == fourcc (< span class = "stringliteral" > " IxM2" < / span > );< / div >
< div class = "line" > < a name = "l00669" > < / a > < span class = "lineno" > 669< / span >   < a class = "code" href = "structfaiss_1_1IndexIDMap.html" > IndexIDMap< / a > * idxmap = is_map2 ? < span class = "keyword" > new< / span > < a class = "code" href = "structfaiss_1_1IndexIDMap2.html" > IndexIDMap2< / a > () : < span class = "keyword" > new< / span > < a class = "code" href = "structfaiss_1_1IndexIDMap.html" > IndexIDMap< / a > ();< / div >
< div class = "line" > < a name = "l00670" > < / a > < span class = "lineno" > 670< / span >   read_index_header (idxmap, f);< / div >
< div class = "line" > < a name = "l00671" > < / a > < span class = "lineno" > 671< / span >   idxmap-> index = < a class = "code" href = "namespacefaiss.html#aa46fe38a858ecfde7e0fc0744939d5ad" > read_index< / a > (f);< / div >
< div class = "line" > < a name = "l00672" > < / a > < span class = "lineno" > 672< / span >   idxmap-> < a class = "code" href = "structfaiss_1_1IndexIDMap.html#affa8a764304410c96489c2b2e178bcdb" > own_fields< / a > = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00673" > < / a > < span class = "lineno" > 673< / span >   READVECTOR (idxmap-> < a class = "code" href = "structfaiss_1_1IndexIDMap.html#ad1cc5658f1879f6a2b00d76cca58cf3b" > id_map< / a > );< / div >
< div class = "line" > < a name = "l00674" > < / a > < span class = "lineno" > 674< / span >   < span class = "keywordflow" > if< / span > (is_map2) {< / div >
< div class = "line" > < a name = "l00675" > < / a > < span class = "lineno" > 675< / span >   < span class = "keyword" > static_cast< < / span > IndexIDMap2*< span class = "keyword" > > < / span > (idxmap)-> construct_rev_map ();< / div >
< div class = "line" > < a name = "l00676" > < / a > < span class = "lineno" > 676< / span >   }< / div >
< div class = "line" > < a name = "l00677" > < / a > < span class = "lineno" > 677< / span >   idx = idxmap;< / div >
< div class = "line" > < a name = "l00678" > < / a > < span class = "lineno" > 678< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00679" > < / a > < span class = "lineno" > 679< / span >   fprintf (stderr, < span class = "stringliteral" > " Index type 0x%08x not supported\n" < / span > , h);< / div >
< div class = "line" > < a name = "l00680" > < / a > < span class = "lineno" > 680< / span >   abort ();< / div >
< div class = "line" > < a name = "l00681" > < / a > < span class = "lineno" > 681< / span >   }< / div >
< div class = "line" > < a name = "l00682" > < / a > < span class = "lineno" > 682< / span >   < span class = "keywordflow" > return< / span > idx;< / div >
< div class = "line" > < a name = "l00683" > < / a > < span class = "lineno" > 683< / span >   }< / div >
< div class = "line" > < a name = "l00684" > < / a > < span class = "lineno" > 684< / span >   < / div >
< div class = "line" > < a name = "l00685" > < / a > < span class = "lineno" > 685< / span >   < / div >
< div class = "line" > < a name = "l00686" > < / a > < span class = "lineno" > 686< / span >   < / div >
< div class = "line" > < a name = "l00687" > < / a > < span class = "lineno" > 687< / span >   Index *< a class = "code" href = "namespacefaiss.html#aa46fe38a858ecfde7e0fc0744939d5ad" > read_index< / a > (< span class = "keyword" > const< / span > < span class = "keywordtype" > char< / span > *fname, < span class = "keywordtype" > bool< / span > try_mmap) {< / div >
< div class = "line" > < a name = "l00688" > < / a > < span class = "lineno" > 688< / span >   FILE *f = fopen (fname, < span class = "stringliteral" > " r" < / span > );< / div >
< div class = "line" > < a name = "l00689" > < / a > < span class = "lineno" > 689< / span >   FAISS_THROW_IF_NOT_FMT (f, < span class = "stringliteral" > " cannot open %s for reading:" < / span > , fname);< / div >
< div class = "line" > < a name = "l00690" > < / a > < span class = "lineno" > 690< / span >   Index *idx = < a class = "code" href = "namespacefaiss.html#aa46fe38a858ecfde7e0fc0744939d5ad" > read_index< / a > (f, try_mmap);< / div >
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< div class = "line" > < a name = "l00691" > < / a > < span class = "lineno" > 691< / span >   fclose (f);< / div >
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< div class = "line" > < a name = "l00692" > < / a > < span class = "lineno" > 692< / span >   < span class = "keywordflow" > return< / span > idx;< / div >
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< 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 >
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< div class = "line" > < a name = "l00695" > < / a > < span class = "lineno" > 695< / span >   VectorTransform *read_VectorTransform (< span class = "keyword" > const< / span > < span class = "keywordtype" > char< / span > *fname) {< / div >
< div class = "line" > < a name = "l00696" > < / a > < span class = "lineno" > 696< / span >   FILE *f = fopen (fname, < span class = "stringliteral" > " r" < / span > );< / div >
< div class = "line" > < a name = "l00697" > < / a > < span class = "lineno" > 697< / span >   < span class = "keywordflow" > if< / span > (!f) {< / div >
< div class = "line" > < a name = "l00698" > < / a > < span class = "lineno" > 698< / span >   fprintf (stderr, < span class = "stringliteral" > " cannot open %s for reading:" < / span > , fname);< / div >
< div class = "line" > < a name = "l00699" > < / a > < span class = "lineno" > 699< / span >   perror (< span class = "stringliteral" > " " < / span > );< / div >
< div class = "line" > < a name = "l00700" > < / a > < span class = "lineno" > 700< / span >   abort ();< / 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 >   VectorTransform *vt = read_VectorTransform (f);< / div >
< div class = "line" > < a name = "l00703" > < / a > < span class = "lineno" > 703< / span >   fclose (f);< / div >
< div class = "line" > < a name = "l00704" > < / a > < span class = "lineno" > 704< / span >   < span class = "keywordflow" > return< / span > vt;< / div >
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< div class = "line" > < a name = "l00705" > < / a > < span class = "lineno" > 705< / span >   }< / div >
< div class = "line" > < a name = "l00706" > < / a > < span class = "lineno" > 706< / span >   < / div >
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< div class = "line" > < a name = "l00707" > < / a > < span class = "lineno" > 707< / span >   < span class = "comment" > /*************************************************************< / span > < / div >
< div class = "line" > < a name = "l00708" > < / a > < span class = "lineno" > 708< / span >   < span class = "comment" > * cloning functions< / span > < / div >
< div class = "line" > < a name = "l00709" > < / a > < span class = "lineno" > 709< / span >   < span class = "comment" > **************************************************************/< / span > < / div >
< div class = "line" > < a name = "l00710" > < / a > < span class = "lineno" > 710< / span >   < / 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 >   < / div >
< div class = "line" > < a name = "l00713" > < / a > < span class = "lineno" > 713< / span >   Index * clone_index (< span class = "keyword" > const< / span > Index *index)< / 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 >   Cloner cl;< / div >
< div class = "line" > < a name = "l00716" > < / a > < span class = "lineno" > 716< / span >   < span class = "keywordflow" > return< / span > cl.clone_Index (index);< / div >
< div class = "line" > < a name = "l00717" > < / a > < span class = "lineno" > 717< / span >   }< / div >
< div class = "line" > < a name = "l00718" > < / a > < span class = "lineno" > 718< / span >   < / div >
< div class = "line" > < a name = "l00719" > < / a > < span class = "lineno" > 719< / span >   < span class = "comment" > // assumes there is a copy constructor ready. Always try from most< / span > < / div >
< div class = "line" > < a name = "l00720" > < / a > < span class = "lineno" > 720< / span >   < span class = "comment" > // specific to most general< / span > < / div >
< div class = "line" > < a name = "l00721" > < / a > < span class = "lineno" > 721< / span >   < span class = "preprocessor" > #define TRYCLONE(classname, obj) \< / span > < / div >
< div class = "line" > < a name = "l00722" > < / a > < span class = "lineno" > 722< / span >   < span class = "preprocessor" > if (const classname *clo = dynamic_cast< const classname *> (obj)) { \< / span > < / div >
< div class = "line" > < a name = "l00723" > < / a > < span class = "lineno" > 723< / span >   < span class = "preprocessor" > return new classname(*clo); \< / span > < / div >
< div class = "line" > < a name = "l00724" > < / a > < span class = "lineno" > 724< / span >   < span class = "preprocessor" > } else< / span > < / div >
< div class = "line" > < a name = "l00725" > < / a > < span class = "lineno" > 725< / span >   < span class = "preprocessor" > < / span > < / div >
< div class = "line" > < a name = "l00726" > < / a > < span class = "lineno" > 726< / span >   VectorTransform *Cloner::clone_VectorTransform (< span class = "keyword" > const< / span > VectorTransform *vt)< / div >
< div class = "line" > < a name = "l00727" > < / a > < span class = "lineno" > 727< / span >   {< / div >
< div class = "line" > < a name = "l00728" > < / a > < span class = "lineno" > 728< / span >   TRYCLONE (RemapDimensionsTransform, vt)< / div >
< div class = "line" > < a name = "l00729" > < / a > < span class = "lineno" > 729< / span >   TRYCLONE (OPQMatrix, vt)< / div >
< div class = "line" > < a name = "l00730" > < / a > < span class = "lineno" > 730< / span >   TRYCLONE (PCAMatrix, vt)< / div >
< div class = "line" > < a name = "l00731" > < / a > < span class = "lineno" > 731< / span >   TRYCLONE (RandomRotationMatrix, vt)< / div >
< div class = "line" > < a name = "l00732" > < / a > < span class = "lineno" > 732< / span >   TRYCLONE (LinearTransform, vt)< / div >
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< div class = "line" > < a name = "l00733" > < / a > < span class = "lineno" > 733< / span >   {< / div >
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< div class = "line" > < a name = "l00734" > < / a > < span class = "lineno" > 734< / span >   FAISS_THROW_MSG(< span class = "stringliteral" > " clone not supported for this type of VectorTransform" < / span > );< / div >
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< 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" > return< / span > < span class = "keyword" > nullptr< / 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 >   < / div >
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< div class = "line" > < a name = "l00739" > < / a > < span class = "lineno" > 739< / span >   IndexIVF * Cloner::clone_IndexIVF (< span class = "keyword" > const< / span > IndexIVF *ivf)< / div >
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< div class = "line" > < a name = "l00740" > < / a > < span class = "lineno" > 740< / span >   {< / div >
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< div class = "line" > < a name = "l00741" > < / a > < span class = "lineno" > 741< / span >   TRYCLONE (IndexIVFPQR, ivf)< / div >
< div class = "line" > < a name = "l00742" > < / a > < span class = "lineno" > 742< / span >   TRYCLONE (IndexIVFPQ, ivf)< / div >
< div class = "line" > < a name = "l00743" > < / a > < span class = "lineno" > 743< / span >   TRYCLONE (IndexIVFFlat, ivf)< / div >
< div class = "line" > < a name = "l00744" > < / a > < span class = "lineno" > 744< / span >   TRYCLONE (IndexIVFScalarQuantizer, ivf)< / div >
< div class = "line" > < a name = "l00745" > < / a > < span class = "lineno" > 745< / span >   {< / div >
< div class = "line" > < a name = "l00746" > < / a > < span class = "lineno" > 746< / span >   FAISS_THROW_MSG(< span class = "stringliteral" > " clone not supported for this type of IndexIVF" < / 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 >   < span class = "keywordflow" > return< / span > < span class = "keyword" > nullptr< / 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 >   Index *Cloner::clone_Index (< span class = "keyword" > const< / span > Index *index)< / div >
< div class = "line" > < a name = "l00752" > < / a > < span class = "lineno" > 752< / span >   {< / div >
< div class = "line" > < a name = "l00753" > < / a > < span class = "lineno" > 753< / span >   TRYCLONE (IndexPQ, index)< / div >
< div class = "line" > < a name = "l00754" > < / a > < span class = "lineno" > 754< / span >   TRYCLONE (IndexLSH, index)< / div >
< div class = "line" > < a name = "l00755" > < / a > < span class = "lineno" > 755< / span >   TRYCLONE (IndexFlatL2, index)< / div >
< div class = "line" > < a name = "l00756" > < / a > < span class = "lineno" > 756< / span >   TRYCLONE (IndexFlatIP, index)< / div >
< div class = "line" > < a name = "l00757" > < / a > < span class = "lineno" > 757< / span >   TRYCLONE (IndexFlat, index)< / div >
< div class = "line" > < a name = "l00758" > < / a > < span class = "lineno" > 758< / span >   TRYCLONE (IndexScalarQuantizer, index)< / div >
< div class = "line" > < a name = "l00759" > < / a > < span class = "lineno" > 759< / span >   TRYCLONE (MultiIndexQuantizer, index)< / div >
< div class = "line" > < a name = "l00760" > < / a > < span class = "lineno" > 760< / span >   if (const IndexIVF * ivf = dynamic_cast< const IndexIVF*> (index)) {< / div >
< div class = "line" > < a name = "l00761" > < / a > < span class = "lineno" > 761< / span >   IndexIVF *res = clone_IndexIVF (ivf);< / div >
< div class = "line" > < a name = "l00762" > < / a > < span class = "lineno" > 762< / span >   res-> own_fields = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00763" > < / a > < span class = "lineno" > 763< / span >   res-> quantizer = clone_Index (ivf-> quantizer);< / div >
< div class = "line" > < a name = "l00764" > < / a > < span class = "lineno" > 764< / span >   < span class = "keywordflow" > return< / span > res;< / div >
< div class = "line" > < a name = "l00765" > < / a > < span class = "lineno" > 765< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (< span class = "keyword" > const< / span > IndexPreTransform * ipt =< / div >
< div class = "line" > < a name = "l00766" > < / a > < span class = "lineno" > 766< / span >   dynamic_cast< const IndexPreTransform*> (index)) {< / div >
< div class = "line" > < a name = "l00767" > < / a > < span class = "lineno" > 767< / span >   IndexPreTransform *res = < span class = "keyword" > new< / span > IndexPreTransform ();< / div >
< div class = "line" > < a name = "l00768" > < / a > < span class = "lineno" > 768< / span >   res-> d = ipt-> d;< / div >
< div class = "line" > < a name = "l00769" > < / a > < span class = "lineno" > 769< / span >   res-> index = clone_Index (ipt-> index);< / div >
< div class = "line" > < a name = "l00770" > < / a > < span class = "lineno" > 770< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > i = 0; i < ipt-> chain.size(); i++)< / div >
< div class = "line" > < a name = "l00771" > < / a > < span class = "lineno" > 771< / span >   res-> chain.push_back (clone_VectorTransform (ipt-> chain[i]));< / div >
< div class = "line" > < a name = "l00772" > < / a > < span class = "lineno" > 772< / span >   res-> own_fields = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00773" > < / a > < span class = "lineno" > 773< / span >   < span class = "keywordflow" > return< / span > res;< / div >
< div class = "line" > < a name = "l00774" > < / a > < span class = "lineno" > 774< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00775" > < / a > < span class = "lineno" > 775< / span >   FAISS_THROW_MSG( < span class = "stringliteral" > " clone not supported for this type of Index" < / span > );< / div >
< div class = "line" > < a name = "l00776" > < / a > < span class = "lineno" > 776< / span >   }< / div >
< div class = "line" > < a name = "l00777" > < / a > < span class = "lineno" > 777< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > nullptr< / span > ;< / div >
< div class = "line" > < a name = "l00778" > < / a > < span class = "lineno" > 778< / span >   }< / div >
< div class = "line" > < a name = "l00779" > < / a > < span class = "lineno" > 779< / span >   < / div >
< div class = "line" > < a name = "l00780" > < / a > < span class = "lineno" > 780< / span >   < / div >
< div class = "line" > < a name = "l00781" > < / a > < span class = "lineno" > 781< / span >   } < span class = "comment" > // namespace faiss< / span > < / div >
2017-06-21 21:54:28 +08:00
< div class = "ttc" id = "structfaiss_1_1ScopeFileCloser_html" > < div class = "ttname" > < a href = "structfaiss_1_1ScopeFileCloser.html" > faiss::ScopeFileCloser< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "index__io_8cpp_source.html#l00095" > index_io.cpp:95< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexPQ_html_a490b64b12384951ed66548a3a48f91e5" > < div class = "ttname" > < a href = "structfaiss_1_1IndexPQ.html#a490b64b12384951ed66548a3a48f91e5" > faiss::IndexPQ::codes< / a > < / div > < div class = "ttdeci" > std::vector< uint8_t > codes< / div > < div class = "ttdoc" > Codes. Size ntotal * pq.code_size. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexPQ_8h_source.html#l00034" > IndexPQ.h:34< / a > < / div > < / div >
2017-07-26 18:11:01 +08:00
< div class = "ttc" id = "structfaiss_1_1ScalarQuantizer_html_a647b8774e4cd8ca5623a194f5c7f8a33" > < div class = "ttname" > < a href = "structfaiss_1_1ScalarQuantizer.html#a647b8774e4cd8ca5623a194f5c7f8a33" > faiss::ScalarQuantizer::code_size< / a > < / div > < div class = "ttdeci" > size_t code_size< / div > < div class = "ttdoc" > bytes per vector < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexScalarQuantizer_8h_source.html#l00060" > IndexScalarQuantizer.h:60< / a > < / div > < / div >
2017-06-21 21:54:28 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexFlat_html" > < div class = "ttname" > < a href = "structfaiss_1_1IndexFlat.html" > faiss::IndexFlat< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexFlat_8h_source.html#l00023" > IndexFlat.h:23< / a > < / div > < / div >
2017-07-18 17:43:35 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexPreTransform_html_aee3cbbe7915ec9ed13d59ca9276bdefc" > < div class = "ttname" > < a href = "structfaiss_1_1IndexPreTransform.html#aee3cbbe7915ec9ed13d59ca9276bdefc" > faiss::IndexPreTransform::index< / a > < / div > < div class = "ttdeci" > Index * index< / div > < div class = "ttdoc" > ! chain of tranforms < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "VectorTransform_8h_source.html#l00242" > VectorTransform.h:242< / 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#l00107" > VectorTransform.h:107< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexIDMap2_html" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIDMap2.html" > faiss::IndexIDMap2< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "MetaIndexes_8h_source.html#l00060" > MetaIndexes.h:60< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexScalarQuantizer_html" > < div class = "ttname" > < a href = "structfaiss_1_1IndexScalarQuantizer.html" > faiss::IndexScalarQuantizer< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexScalarQuantizer_8h_source.html#l00082" > IndexScalarQuantizer.h:82< / a > < / div > < / div >
2017-06-21 21:54:28 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexPQ_html" > < div class = "ttname" > < a href = "structfaiss_1_1IndexPQ.html" > faiss::IndexPQ< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexPQ_8h_source.html#l00028" > IndexPQ.h:28< / a > < / div > < / div >
2017-07-18 17:43:35 +08:00
< div class = "ttc" id = "namespacefaiss_html_aa46fe38a858ecfde7e0fc0744939d5ad" > < div class = "ttname" > < a href = "namespacefaiss.html#aa46fe38a858ecfde7e0fc0744939d5ad" > faiss::read_index< / a > < / div > < div class = "ttdeci" > Index * read_index(FILE *f, bool try_mmap)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "index__io_8cpp_source.html#l00536" > index_io.cpp:536< / a > < / div > < / div >
2017-06-21 21:54:28 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexLSH_html_a0116f529bc5de64a7ef142caa652d9f6" > < div class = "ttname" > < a href = "structfaiss_1_1IndexLSH.html#a0116f529bc5de64a7ef142caa652d9f6" > faiss::IndexLSH::bytes_per_vec< / a > < / div > < div class = "ttdeci" > int bytes_per_vec< / div > < div class = "ttdoc" > nb of 8-bits per encoded vector < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexLSH_8h_source.html#l00028" > IndexLSH.h:28< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexLSH_html_ae203ad895b15ae16fc1a748661b84df3" > < div class = "ttname" > < a href = "structfaiss_1_1IndexLSH.html#ae203ad895b15ae16fc1a748661b84df3" > faiss::IndexLSH::thresholds< / a > < / div > < div class = "ttdeci" > std::vector< float > thresholds< / div > < div class = "ttdoc" > thresholds to compare with < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexLSH_8h_source.html#l00034" > IndexLSH.h:34< / 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#l00079" > IndexFlat.h:79< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexLSH_html" > < div class = "ttname" > < a href = "structfaiss_1_1IndexLSH.html" > faiss::IndexLSH< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexLSH_8h_source.html#l00024" > IndexLSH.h:24< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexLSH_html_a5d4d6ea1fc709605d5b2061d1bce27d6" > < div class = "ttname" > < a href = "structfaiss_1_1IndexLSH.html#a5d4d6ea1fc709605d5b2061d1bce27d6" > faiss::IndexLSH::train_thresholds< / a > < / div > < div class = "ttdeci" > bool train_thresholds< / div > < div class = "ttdoc" > whether we train thresholds or use 0 < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexLSH_8h_source.html#l00030" > IndexLSH.h:30< / a > < / div > < / div >
2017-07-18 17:43:35 +08:00
< 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#l00239" > VectorTransform.h:239< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexIDMap_html" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIDMap.html" > faiss::IndexIDMap< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "MetaIndexes_8h_source.html#l00026" > MetaIndexes.h:26< / a > < / div > < / div >
2017-09-08 19:39:41 +08:00
< 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 = "IndexIVF_8h_source.html#l00174" > IndexIVF.h:174< / a > < / div > < / div >
2017-06-21 21:54:28 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexFlatIP_html" > < div class = "ttname" > < a href = "structfaiss_1_1IndexFlatIP.html" > faiss::IndexFlatIP< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexFlat_8h_source.html#l00073" > IndexFlat.h:73< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexRefineFlat_html_a4acc0b3a8c33e5dd8851448ac162dfd0" > < div class = "ttname" > < a href = "structfaiss_1_1IndexRefineFlat.html#a4acc0b3a8c33e5dd8851448ac162dfd0" > faiss::IndexRefineFlat::base_index< / a > < / div > < div class = "ttdeci" > Index * base_index< / div > < div class = "ttdoc" > faster index to pre-select the vectors that should be filtered < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexFlat_8h_source.html#l00109" > IndexFlat.h:109< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexRefineFlat_html" > < div class = "ttname" > < a href = "structfaiss_1_1IndexRefineFlat.html" > faiss::IndexRefineFlat< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexFlat_8h_source.html#l00103" > IndexFlat.h:103< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexRefineFlat_html_aab99f32713ece942ccefccf306292ca0" > < div class = "ttname" > < a href = "structfaiss_1_1IndexRefineFlat.html#aab99f32713ece942ccefccf306292ca0" > faiss::IndexRefineFlat::refine_index< / a > < / div > < div class = "ttdeci" > IndexFlat refine_index< / div > < div class = "ttdoc" > storage for full vectors < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexFlat_8h_source.html#l00106" > IndexFlat.h:106< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexRefineFlat_html_aaf0f6a094de0e9409effa81bedb9c7e2" > < div class = "ttname" > < a href = "structfaiss_1_1IndexRefineFlat.html#aaf0f6a094de0e9409effa81bedb9c7e2" > faiss::IndexRefineFlat::own_fields< / a > < / div > < div class = "ttdeci" > bool own_fields< / div > < div class = "ttdoc" > should the base index be deallocated? < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexFlat_8h_source.html#l00110" > IndexFlat.h:110< / 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#l00064" > Index.h:64< / a > < / div > < / div >
2017-07-18 17:43:35 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexIDMap_html_ad1cc5658f1879f6a2b00d76cca58cf3b" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIDMap.html#ad1cc5658f1879f6a2b00d76cca58cf3b" > faiss::IndexIDMap::id_map< / a > < / div > < div class = "ttdeci" > std::vector< long > id_map< / div > < div class = "ttdoc" > ! whether pointers are deleted in destructo < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "MetaIndexes_8h_source.html#l00029" > MetaIndexes.h:29< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexScalarQuantizer_html_a861fa059f9d4ced9147e08193a2be9be" > < div class = "ttname" > < a href = "structfaiss_1_1IndexScalarQuantizer.html#a861fa059f9d4ced9147e08193a2be9be" > faiss::IndexScalarQuantizer::codes< / a > < / div > < div class = "ttdeci" > std::vector< uint8_t > codes< / div > < div class = "ttdoc" > Codes. Size ntotal * pq.code_size. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexScalarQuantizer_8h_source.html#l00087" > IndexScalarQuantizer.h:87< / a > < / div > < / div >
2017-06-21 21:54:28 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexLSH_html_a71c8aa08d3bd0483ccc0f11c22cd3cd8" > < div class = "ttname" > < a href = "structfaiss_1_1IndexLSH.html#a71c8aa08d3bd0483ccc0f11c22cd3cd8" > faiss::IndexLSH::rrot< / a > < / div > < div class = "ttdeci" > RandomRotationMatrix rrot< / div > < div class = "ttdoc" > optional random rotation < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexLSH_8h_source.html#l00032" > IndexLSH.h:32< / a > < / div > < / div >
2017-07-18 17:43:35 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexScalarQuantizer_html_a71381f74754d8a54812e80af46a2a83a" > < div class = "ttname" > < a href = "structfaiss_1_1IndexScalarQuantizer.html#a71381f74754d8a54812e80af46a2a83a" > faiss::IndexScalarQuantizer::sq< / a > < / div > < div class = "ttdeci" > ScalarQuantizer sq< / div > < div class = "ttdoc" > Used to encode the vectors. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexScalarQuantizer_8h_source.html#l00084" > IndexScalarQuantizer.h:84< / a > < / div > < / div >
2017-06-21 21:54:28 +08:00
< 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#l00062" > Index.h:62< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexPQ_html_aa7b7cfe0c8dfd37c8a940fd93d12dc88" > < div class = "ttname" > < a href = "structfaiss_1_1IndexPQ.html#aa7b7cfe0c8dfd37c8a940fd93d12dc88" > faiss::IndexPQ::pq< / a > < / div > < div class = "ttdeci" > ProductQuantizer pq< / div > < div class = "ttdoc" > The product quantizer used to encode the vectors. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexPQ_8h_source.html#l00031" > IndexPQ.h:31< / 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#l00065" > Index.h:65< / a > < / div > < / div >
2017-07-26 18:11:01 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexIVFScalarQuantizer_html" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFScalarQuantizer.html" > faiss::IndexIVFScalarQuantizer< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexScalarQuantizer_8h_source.html#l00129" > IndexScalarQuantizer.h:129< / a > < / div > < / div >
2017-06-21 21:54:28 +08:00
< 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#l00135" > IndexPQ.h:135< / a > < / div > < / div >
2017-07-18 17:43:35 +08:00
< 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#l00244" > VectorTransform.h:244< / a > < / div > < / div >
2017-06-21 21:54:28 +08:00
< 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#l00072" > Index.h:72< / 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#l00046" > IndexIVF.h:46< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1VectorTransform_html_a589d612f7b1773614619a0cbecd728a9" > < div class = "ttname" > < a href = "structfaiss_1_1VectorTransform.html#a589d612f7b1773614619a0cbecd728a9" > faiss::VectorTransform::d_out< / a > < / div > < div class = "ttdeci" > int d_out< / div > < div class = "ttdoc" > ! input dimension < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "VectorTransform_8h_source.html#l00033" > VectorTransform.h:33< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexLSH_html_af8c48006f210f0cbbf45ec9972558d20" > < div class = "ttname" > < a href = "structfaiss_1_1IndexLSH.html#af8c48006f210f0cbbf45ec9972558d20" > faiss::IndexLSH::nbits< / a > < / div > < div class = "ttdeci" > int nbits< / div > < div class = "ttdoc" > nb of bits per vector < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexLSH_8h_source.html#l00027" > IndexLSH.h:27< / 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#l00060" > Index.h:60< / 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#l00069" > Index.h:69< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexFlat_html_a9001de47890fe5d2eced9551d3613d47" > < div class = "ttname" > < a href = "structfaiss_1_1IndexFlat.html#a9001de47890fe5d2eced9551d3613d47" > faiss::IndexFlat::xb< / a > < / div > < div class = "ttdeci" > std::vector< float > xb< / div > < div class = "ttdoc" > database vectors, size ntotal * d < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexFlat_8h_source.html#l00025" > IndexFlat.h:25< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexPQ_html_aff455f2adff6064939494dad6e3017bc" > < div class = "ttname" > < a href = "structfaiss_1_1IndexPQ.html#aff455f2adff6064939494dad6e3017bc" > faiss::IndexPQ::polysemous_ht< / a > < / div > < div class = "ttdeci" > int polysemous_ht< / div > < div class = "ttdoc" > Hamming threshold used for polysemy. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexPQ_8h_source.html#l00091" > IndexPQ.h:91< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexRefineFlat_html_a7383fabb28db5b0df45ca4ea81f7acd4" > < div class = "ttname" > < a href = "structfaiss_1_1IndexRefineFlat.html#a7383fabb28db5b0df45ca4ea81f7acd4" > faiss::IndexRefineFlat::k_factor< / a > < / div > < div class = "ttdeci" > float k_factor< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexFlat_8h_source.html#l00114" > IndexFlat.h:114< / a > < / div > < / div >
2017-09-08 19:39:41 +08:00
< 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#l00057" > IndexIVF.h:57< / a > < / div > < / div >
2017-06-21 21:54:28 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexLSH_html_a71e9142e1256705f125ded9d647f4497" > < div class = "ttname" > < a href = "structfaiss_1_1IndexLSH.html#a71e9142e1256705f125ded9d647f4497" > faiss::IndexLSH::rotate_data< / a > < / div > < div class = "ttdeci" > bool rotate_data< / div > < div class = "ttdoc" > whether to apply a random rotation to input < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexLSH_8h_source.html#l00029" > IndexLSH.h:29< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexLSH_html_a55c0f1127850af0d06ef22fc8b791572" > < div class = "ttname" > < a href = "structfaiss_1_1IndexLSH.html#a55c0f1127850af0d06ef22fc8b791572" > faiss::IndexLSH::codes< / a > < / div > < div class = "ttdeci" > std::vector< uint8_t > codes< / div > < div class = "ttdoc" > encoded dataset < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexLSH_8h_source.html#l00037" > IndexLSH.h:37< / a > < / div > < / div >
2017-07-18 17:43:35 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexIDMap_html_affa8a764304410c96489c2b2e178bcdb" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIDMap.html#affa8a764304410c96489c2b2e178bcdb" > faiss::IndexIDMap::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 = "MetaIndexes_8h_source.html#l00028" > MetaIndexes.h:28< / a > < / div > < / div >
2017-02-23 06:26:44 +08:00
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