2017-02-23 06:26:44 +08:00
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< title > Faiss: GpuIndexFlat.cu Source File< / title >
2017-02-23 06:26:44 +08:00
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< li class = "navelem" > < a class = "el" href = "dir_6b3ae6988449b0834e9596fad5d75199.html" > gpu< / a > < / li > < / ul >
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< div class = "title" > GpuIndexFlat.cu< / 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" > /**< / span > < / div >
< div class = "line" > < a name = "l00003" > < / a > < span class = "lineno" > 3< / span >   < span class = "comment" > * Copyright (c) 2015-present, Facebook, Inc.< / span > < / div >
< div class = "line" > < a name = "l00004" > < / a > < span class = "lineno" > 4< / span >   < span class = "comment" > * All rights reserved.< / span > < / div >
< div class = "line" > < a name = "l00005" > < / a > < span class = "lineno" > 5< / span >   < span class = "comment" > *< / span > < / div >
< div class = "line" > < a name = "l00006" > < / a > < span class = "lineno" > 6< / span >   < span class = "comment" > * This source code is licensed under the CC-by-NC license found in the< / span > < / div >
< div class = "line" > < a name = "l00007" > < / a > < span class = "lineno" > 7< / span >   < span class = "comment" > * LICENSE file in the root directory of this source tree.< / span > < / div >
< div class = "line" > < a name = "l00008" > < / a > < span class = "lineno" > 8< / span >   < span class = "comment" > */< / span > < / div >
< div class = "line" > < a name = "l00009" > < / a > < span class = "lineno" > 9< / span >   < / div >
< div class = "line" > < a name = "l00010" > < / a > < span class = "lineno" > 10< / span >   < span class = "comment" > // Copyright 2004-present Facebook. All Rights Reserved.< / span > < / div >
< div class = "line" > < a name = "l00011" > < / a > < span class = "lineno" > 11< / span >   < / div >
< div class = "line" > < a name = "l00012" > < / a > < span class = "lineno" > 12< / span >   < span class = "preprocessor" > #include " GpuIndexFlat.h" < / span > < / div >
< div class = "line" > < a name = "l00013" > < / a > < span class = "lineno" > 13< / span >   < span class = "preprocessor" > #include " ../IndexFlat.h" < / span > < / div >
< div class = "line" > < a name = "l00014" > < / a > < span class = "lineno" > 14< / span >   < span class = "preprocessor" > #include " GpuResources.h" < / span > < / div >
< div class = "line" > < a name = "l00015" > < / a > < span class = "lineno" > 15< / span >   < span class = "preprocessor" > #include " impl/FlatIndex.cuh" < / span > < / div >
< div class = "line" > < a name = "l00016" > < / a > < span class = "lineno" > 16< / span >   < span class = "preprocessor" > #include " utils/CopyUtils.cuh" < / span > < / div >
< div class = "line" > < a name = "l00017" > < / a > < span class = "lineno" > 17< / span >   < span class = "preprocessor" > #include " utils/DeviceUtils.h" < / span > < / div >
< div class = "line" > < a name = "l00018" > < / a > < span class = "lineno" > 18< / span >   < span class = "preprocessor" > #include " utils/StaticUtils.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 < thrust/execution_policy.h> < / span > < / div >
< div class = "line" > < a name = "l00021" > < / a > < span class = "lineno" > 21< / span >   < span class = "preprocessor" > #include < thrust/transform.h> < / span > < / div >
< div class = "line" > < a name = "l00022" > < / a > < span class = "lineno" > 22< / span >   < span class = "preprocessor" > #include < limits> < / span > < / div >
< div class = "line" > < a name = "l00023" > < / a > < span class = "lineno" > 23< / span >   < / div >
< div class = "line" > < a name = "l00024" > < / a > < span class = "lineno" > 24< / span >   < span class = "keyword" > namespace < / span > faiss { < span class = "keyword" > namespace < / span > gpu {< / div >
< div class = "line" > < a name = "l00025" > < / a > < span class = "lineno" > 25< / span >   < span class = "comment" > < / span > < / div >
< div class = "line" > < a name = "l00026" > < / a > < span class = "lineno" > 26< / span >   < span class = "comment" > /// Default CPU search size for which we use paged copies< / span > < / div >
< div class = "line" > < a name = "l00027" > < / a > < span class = "lineno" > 27< / span >   < span class = "comment" > < / span > constexpr < span class = "keywordtype" > size_t< / span > kMinPagedQuerySize = (size_t) 256 * 1024 * 1024;< / div >
< div class = "line" > < a name = "l00028" > < / a > < span class = "lineno" > 28< / span >   < span class = "comment" > < / span > < / div >
< div class = "line" > < a name = "l00029" > < / a > < span class = "lineno" > 29< / span >   < span class = "comment" > /// Size above which we page copies from the CPU to GPU (non-paged< / span > < / div >
< div class = "line" > < a name = "l00030" > < / a > < span class = "lineno" > 30< / span >   < span class = "comment" > /// memory usage)< / span > < / div >
< div class = "line" > < a name = "l00031" > < / a > < span class = "lineno" > 31< / span >   < span class = "comment" > < / span > constexpr < span class = "keywordtype" > size_t< / span > kNonPinnedPageSize = (size_t) 256 * 1024 * 1024;< / div >
< div class = "line" > < a name = "l00032" > < / a > < span class = "lineno" > 32< / span >   < / div >
< div class = "line" > < a name = "l00033" > < / a > < span class = "lineno" > < a class = "line" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#adb02cf2994b32a981cfa10850607c1f5" > 33< / a > < / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#adb02cf2994b32a981cfa10850607c1f5" > GpuIndexFlat::GpuIndexFlat< / a > (< a class = "code" href = "classfaiss_1_1gpu_1_1GpuResources.html" > GpuResources< / a > * resources,< / div >
< div class = "line" > < a name = "l00034" > < / a > < span class = "lineno" > 34< / span >   < span class = "keywordtype" > int< / span > device,< / div >
< div class = "line" > < a name = "l00035" > < / a > < span class = "lineno" > 35< / span >   < span class = "keywordtype" > bool< / span > useFloat16,< / div >
< div class = "line" > < a name = "l00036" > < / a > < span class = "lineno" > 36< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "structfaiss_1_1IndexFlat.html" > faiss::IndexFlat< / a > * index) :< / div >
< div class = "line" > < a name = "l00037" > < / a > < span class = "lineno" > 37< / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndex.html" > GpuIndex< / a > (resources, device, index-> d, index-> metric_type),< / div >
< div class = "line" > < a name = "l00038" > < / a > < span class = "lineno" > 38< / span >   minPagedSize_(kMinPagedQuerySize),< / div >
< div class = "line" > < a name = "l00039" > < / a > < span class = "lineno" > 39< / span >   useFloat16_(useFloat16),< / div >
< div class = "line" > < a name = "l00040" > < / a > < span class = "lineno" > 40< / span >   data_(nullptr) {< / div >
< div class = "line" > < a name = "l00041" > < / a > < span class = "lineno" > 41< / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#abb964875e0893de1d8334ca5ad0f62dc" > copyFrom< / a > (index);< / div >
< div class = "line" > < a name = "l00042" > < / a > < span class = "lineno" > 42< / span >   }< / div >
< div class = "line" > < a name = "l00043" > < / a > < span class = "lineno" > 43< / span >   < / div >
< div class = "line" > < a name = "l00044" > < / a > < span class = "lineno" > < a class = "line" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#af143ba8226b107dddeb76ba5fe4c8083" > 44< / a > < / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#adb02cf2994b32a981cfa10850607c1f5" > GpuIndexFlat::GpuIndexFlat< / a > (< a class = "code" href = "classfaiss_1_1gpu_1_1GpuResources.html" > GpuResources< / a > * resources,< / div >
< div class = "line" > < a name = "l00045" > < / a > < span class = "lineno" > 45< / span >   < span class = "keywordtype" > int< / span > device,< / div >
< div class = "line" > < a name = "l00046" > < / a > < span class = "lineno" > 46< / span >   < span class = "keywordtype" > int< / span > dims,< / div >
< div class = "line" > < a name = "l00047" > < / a > < span class = "lineno" > 47< / span >   < span class = "keywordtype" > bool< / span > useFloat16,< / div >
< div class = "line" > < a name = "l00048" > < / a > < span class = "lineno" > 48< / span >   < a class = "code" href = "namespacefaiss.html#afd12191c638da74760ff397cf319752c" > faiss::MetricType< / a > metric) :< / div >
< div class = "line" > < a name = "l00049" > < / a > < span class = "lineno" > 49< / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndex.html" > GpuIndex< / a > (resources, device, dims, metric),< / div >
< div class = "line" > < a name = "l00050" > < / a > < span class = "lineno" > 50< / span >   minPagedSize_(kMinPagedQuerySize),< / div >
< div class = "line" > < a name = "l00051" > < / a > < span class = "lineno" > 51< / span >   useFloat16_(useFloat16),< / div >
< div class = "line" > < a name = "l00052" > < / a > < span class = "lineno" > 52< / span >   data_(nullptr) {< / div >
< div class = "line" > < a name = "l00053" > < / a > < span class = "lineno" > 53< / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1DeviceScope.html" > DeviceScope< / a > scope(< a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndex.html#a27b56209183310c8d57ffda796f02c6c" > device_< / a > );< / 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 >   < a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#ae393840fc80403369452c25c9155e067" > data_< / a > = < span class = "keyword" > new< / span > < a class = "code" href = "classfaiss_1_1gpu_1_1FlatIndex.html" > FlatIndex< / a > (resources,< / div >
< div class = "line" > < a name = "l00056" > < / a > < span class = "lineno" > 56< / span >   dims,< / div >
< div class = "line" > < a name = "l00057" > < / a > < span class = "lineno" > 57< / span >   metric == faiss::METRIC_L2,< / div >
< div class = "line" > < a name = "l00058" > < / a > < span class = "lineno" > 58< / span >   useFloat16);< / 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 >   < / div >
< div class = "line" > < a name = "l00061" > < / a > < span class = "lineno" > 61< / span >   GpuIndexFlat::~GpuIndexFlat() {< / div >
< div class = "line" > < a name = "l00062" > < / a > < span class = "lineno" > 62< / span >   < span class = "keyword" > delete< / span > < a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#ae393840fc80403369452c25c9155e067" > data_< / a > ;< / div >
< div class = "line" > < a name = "l00063" > < / a > < span class = "lineno" > 63< / span >   }< / div >
< div class = "line" > < a name = "l00064" > < / a > < span class = "lineno" > 64< / span >   < / div >
< div class = "line" > < a name = "l00065" > < / a > < span class = "lineno" > 65< / span >   < span class = "keywordtype" > void< / span > < / div >
< div class = "line" > < a name = "l00066" > < / a > < span class = "lineno" > < a class = "line" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#a752f8129ccb94fa0c6f346ae03ff536d" > 66< / a > < / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#a752f8129ccb94fa0c6f346ae03ff536d" > GpuIndexFlat::setMinPagingSize< / a > (< span class = "keywordtype" > size_t< / span > size) {< / div >
< div class = "line" > < a name = "l00067" > < / a > < span class = "lineno" > 67< / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#aad665a7b5888b4aafd47ae0f8d0e6c40" > minPagedSize_< / a > = size;< / div >
< div class = "line" > < a name = "l00068" > < / a > < span class = "lineno" > 68< / span >   }< / div >
< div class = "line" > < a name = "l00069" > < / a > < span class = "lineno" > 69< / span >   < / div >
< div class = "line" > < a name = "l00070" > < / a > < span class = "lineno" > 70< / span >   < span class = "keywordtype" > size_t< / span > < / div >
< div class = "line" > < a name = "l00071" > < / a > < span class = "lineno" > < a class = "line" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#a44532c7e5165d36e5da57272d37544ae" > 71< / a > < / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#a44532c7e5165d36e5da57272d37544ae" > GpuIndexFlat::getMinPagingSize< / a > ()< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l00072" > < / a > < span class = "lineno" > 72< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#aad665a7b5888b4aafd47ae0f8d0e6c40" > minPagedSize_< / a > ;< / div >
< div class = "line" > < a name = "l00073" > < / a > < span class = "lineno" > 73< / span >   }< / div >
< div class = "line" > < a name = "l00074" > < / a > < span class = "lineno" > 74< / span >   < / div >
< div class = "line" > < a name = "l00075" > < / a > < span class = "lineno" > 75< / span >   < span class = "keywordtype" > bool< / span > < / div >
< div class = "line" > < a name = "l00076" > < / a > < span class = "lineno" > < a class = "line" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#af9b5ff82eb54a6d0632d515db4ee3994" > 76< / a > < / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#af9b5ff82eb54a6d0632d515db4ee3994" > GpuIndexFlat::getUseFloat16< / a > ()< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l00077" > < / a > < span class = "lineno" > 77< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#ad09fbc6ed81eb30533c56a3ef262b022" > useFloat16_< / a > ;< / div >
< div class = "line" > < a name = "l00078" > < / a > < span class = "lineno" > 78< / span >   }< / div >
< div class = "line" > < a name = "l00079" > < / a > < span class = "lineno" > 79< / span >   < / div >
< div class = "line" > < a name = "l00080" > < / a > < span class = "lineno" > 80< / span >   < span class = "keywordtype" > void< / span > < / div >
< div class = "line" > < a name = "l00081" > < / a > < span class = "lineno" > < a class = "line" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#abb964875e0893de1d8334ca5ad0f62dc" > 81< / a > < / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#abb964875e0893de1d8334ca5ad0f62dc" > GpuIndexFlat::copyFrom< / a > (< span class = "keyword" > const< / span > < a class = "code" href = "structfaiss_1_1IndexFlat.html" > faiss::IndexFlat< / a > * index) {< / div >
< div class = "line" > < a name = "l00082" > < / a > < span class = "lineno" > 82< / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1DeviceScope.html" > DeviceScope< / a > scope(< a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndex.html#a27b56209183310c8d57ffda796f02c6c" > device_< / a > );< / div >
< div class = "line" > < a name = "l00083" > < / a > < span class = "lineno" > 83< / span >   < / div >
< div class = "line" > < a name = "l00084" > < / a > < span class = "lineno" > 84< / span >   this-> < a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > = index-> < a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > ;< / div >
< div class = "line" > < a name = "l00085" > < / a > < span class = "lineno" > 85< / span >   this-> < a class = "code" href = "structfaiss_1_1Index.html#a8e18f641854b2bde83ecff0a2f9a6f4e" > metric_type< / a > = index-> < a class = "code" href = "structfaiss_1_1Index.html#a8e18f641854b2bde83ecff0a2f9a6f4e" > metric_type< / a > ;< / div >
< div class = "line" > < a name = "l00086" > < / a > < span class = "lineno" > 86< / span >   < / div >
< div class = "line" > < a name = "l00087" > < / a > < span class = "lineno" > 87< / span >   < span class = "comment" > // GPU code has 32 bit indices< / span > < / div >
< div class = "line" > < a name = "l00088" > < / a > < span class = "lineno" > 88< / span >   FAISS_ASSERT(index-> < a class = "code" href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > ntotal< / a > < =< / div >
< div class = "line" > < a name = "l00089" > < / a > < span class = "lineno" > 89< / span >   (< a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > faiss::Index::idx_t< / a > ) std::numeric_limits< int> ::max());< / div >
< div class = "line" > < a name = "l00090" > < / a > < span class = "lineno" > 90< / span >   this-> < a class = "code" href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > ntotal< / a > = index-> < a class = "code" href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > ntotal< / a > ;< / div >
< div class = "line" > < a name = "l00091" > < / a > < span class = "lineno" > 91< / span >   < / div >
< div class = "line" > < a name = "l00092" > < / a > < span class = "lineno" > 92< / span >   < span class = "keyword" > delete< / span > < a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#ae393840fc80403369452c25c9155e067" > data_< / a > ;< / div >
< div class = "line" > < a name = "l00093" > < / a > < span class = "lineno" > 93< / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#ae393840fc80403369452c25c9155e067" > data_< / a > = < span class = "keyword" > new< / span > < a class = "code" href = "classfaiss_1_1gpu_1_1FlatIndex.html" > FlatIndex< / a > (< a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndex.html#a17b82a8a11783da6eb1b07c9aab98c36" > resources_< / a > ,< / div >
< div class = "line" > < a name = "l00094" > < / a > < span class = "lineno" > 94< / span >   this-> < a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > ,< / div >
< div class = "line" > < a name = "l00095" > < / a > < span class = "lineno" > 95< / span >   index-> < a class = "code" href = "structfaiss_1_1Index.html#a8e18f641854b2bde83ecff0a2f9a6f4e" > metric_type< / a > == faiss::METRIC_L2,< / div >
< div class = "line" > < a name = "l00096" > < / a > < span class = "lineno" > 96< / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#ad09fbc6ed81eb30533c56a3ef262b022" > useFloat16_< / a > );< / div >
< div class = "line" > < a name = "l00097" > < / a > < span class = "lineno" > 97< / span >   < / div >
< div class = "line" > < a name = "l00098" > < / a > < span class = "lineno" > 98< / span >   < span class = "comment" > // The index could be empty< / span > < / div >
< div class = "line" > < a name = "l00099" > < / a > < span class = "lineno" > 99< / span >   < span class = "keywordflow" > if< / span > (index-> < a class = "code" href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > ntotal< / a > > 0) {< / div >
< div class = "line" > < a name = "l00100" > < / a > < span class = "lineno" > 100< / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#ae393840fc80403369452c25c9155e067" > data_< / a > -> < a class = "code" href = "classfaiss_1_1gpu_1_1FlatIndex.html#ab91c9ddf7dd258620f424619cb029e22" > add< / a > (index-> < a class = "code" href = "structfaiss_1_1IndexFlat.html#a9001de47890fe5d2eced9551d3613d47" > xb< / a > .data(),< / div >
< div class = "line" > < a name = "l00101" > < / a > < span class = "lineno" > 101< / span >   index-> < a class = "code" href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > ntotal< / a > ,< / div >
< div class = "line" > < a name = "l00102" > < / a > < span class = "lineno" > 102< / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndex.html#a17b82a8a11783da6eb1b07c9aab98c36" > resources_< / a > -> getDefaultStream(< a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndex.html#a27b56209183310c8d57ffda796f02c6c" > device_< / a > ));< / 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 >   }< / div >
< div class = "line" > < a name = "l00105" > < / a > < span class = "lineno" > 105< / span >   < / div >
< div class = "line" > < a name = "l00106" > < / a > < span class = "lineno" > 106< / span >   < span class = "keywordtype" > void< / span > < / div >
< div class = "line" > < a name = "l00107" > < / a > < span class = "lineno" > < a class = "line" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#a046007ff2fafcafc6ae328769c700e39" > 107< / a > < / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#a046007ff2fafcafc6ae328769c700e39" > GpuIndexFlat::copyTo< / a > (< a class = "code" href = "structfaiss_1_1IndexFlat.html" > faiss::IndexFlat< / a > * index)< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l00108" > < / a > < span class = "lineno" > 108< / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1DeviceScope.html" > DeviceScope< / a > scope(< a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndex.html#a27b56209183310c8d57ffda796f02c6c" > device_< / a > );< / div >
< div class = "line" > < a name = "l00109" > < / a > < span class = "lineno" > 109< / span >   < / div >
< div class = "line" > < a name = "l00110" > < / a > < span class = "lineno" > 110< / span >   index-> < a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > = this-> < a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > ;< / div >
< div class = "line" > < a name = "l00111" > < / a > < span class = "lineno" > 111< / span >   index-> < a class = "code" href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > ntotal< / a > = this-> < a class = "code" href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > ntotal< / a > ;< / div >
< div class = "line" > < a name = "l00112" > < / a > < span class = "lineno" > 112< / span >   index-> < a class = "code" href = "structfaiss_1_1Index.html#a8e18f641854b2bde83ecff0a2f9a6f4e" > metric_type< / a > = this-> < a class = "code" href = "structfaiss_1_1Index.html#a8e18f641854b2bde83ecff0a2f9a6f4e" > metric_type< / a > ;< / div >
< div class = "line" > < a name = "l00113" > < / a > < span class = "lineno" > 113< / span >   < / div >
< div class = "line" > < a name = "l00114" > < / a > < span class = "lineno" > 114< / span >   FAISS_ASSERT(< a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#ae393840fc80403369452c25c9155e067" > data_< / a > -> < a class = "code" href = "classfaiss_1_1gpu_1_1FlatIndex.html#a6988df17792dae30f24cc859728777e6" > getSize< / a > () == this-> < a class = "code" href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > ntotal< / a > );< / div >
< div class = "line" > < a name = "l00115" > < / a > < span class = "lineno" > 115< / span >   index-> < a class = "code" href = "structfaiss_1_1IndexFlat.html#a9001de47890fe5d2eced9551d3613d47" > xb< / a > .resize(this-> < a class = "code" href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > ntotal< / a > * this-> < a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > );< / div >
< div class = "line" > < a name = "l00116" > < / a > < span class = "lineno" > 116< / span >   < / div >
< div class = "line" > < a name = "l00117" > < / a > < span class = "lineno" > 117< / span >   < span class = "keyword" > auto< / span > stream = < a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndex.html#a17b82a8a11783da6eb1b07c9aab98c36" > resources_< / a > -> getDefaultStream(< a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndex.html#a27b56209183310c8d57ffda796f02c6c" > device_< / a > );< / div >
< div class = "line" > < a name = "l00118" > < / a > < span class = "lineno" > 118< / span >   < / div >
< div class = "line" > < a name = "l00119" > < / a > < span class = "lineno" > 119< / span >   < span class = "keywordflow" > if< / span > (this-> < a class = "code" href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > ntotal< / a > > 0) {< / div >
< div class = "line" > < a name = "l00120" > < / a > < span class = "lineno" > 120< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#ad09fbc6ed81eb30533c56a3ef262b022" > useFloat16_< / a > ) {< / div >
< div class = "line" > < a name = "l00121" > < / a > < span class = "lineno" > 121< / span >   < span class = "keyword" > auto< / span > vecFloat32 = < a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#ae393840fc80403369452c25c9155e067" > data_< / a > -> < a class = "code" href = "classfaiss_1_1gpu_1_1FlatIndex.html#a258b0dd61a9c352ec7d68fa8bac0d7ad" > getVectorsFloat32Copy< / a > (stream);< / div >
< div class = "line" > < a name = "l00122" > < / a > < span class = "lineno" > 122< / span >   fromDevice(vecFloat32, index-> < a class = "code" href = "structfaiss_1_1IndexFlat.html#a9001de47890fe5d2eced9551d3613d47" > xb< / a > .data(), stream);< / div >
< div class = "line" > < a name = "l00123" > < / a > < span class = "lineno" > 123< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00124" > < / a > < span class = "lineno" > 124< / span >   fromDevice(< a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#ae393840fc80403369452c25c9155e067" > data_< / a > -> < a class = "code" href = "classfaiss_1_1gpu_1_1FlatIndex.html#a12058744ffb3fbcbb047872449269c06" > getVectorsFloat32Ref< / a > (), index-> < a class = "code" href = "structfaiss_1_1IndexFlat.html#a9001de47890fe5d2eced9551d3613d47" > xb< / a > .data(), stream);< / div >
< div class = "line" > < a name = "l00125" > < / a > < span class = "lineno" > 125< / span >   }< / div >
< div class = "line" > < a name = "l00126" > < / a > < span class = "lineno" > 126< / span >   }< / div >
< div class = "line" > < a name = "l00127" > < / a > < span class = "lineno" > 127< / span >   }< / div >
< div class = "line" > < a name = "l00128" > < / a > < span class = "lineno" > 128< / span >   < / div >
< div class = "line" > < a name = "l00129" > < / a > < span class = "lineno" > 129< / span >   < span class = "keywordtype" > size_t< / span > < / div >
< div class = "line" > < a name = "l00130" > < / a > < span class = "lineno" > < a class = "line" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#a51b5aa0d68670ec7ccb32b0353c7387f" > 130< / a > < / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#a51b5aa0d68670ec7ccb32b0353c7387f" > GpuIndexFlat::getNumVecs< / a > ()< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l00131" > < / a > < span class = "lineno" > 131< / span >   < span class = "keywordflow" > return< / span > this-> < a class = "code" href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > ntotal< / a > ;< / div >
< div class = "line" > < a name = "l00132" > < / a > < span class = "lineno" > 132< / span >   }< / div >
< div class = "line" > < a name = "l00133" > < / a > < span class = "lineno" > 133< / span >   < / div >
< div class = "line" > < a name = "l00134" > < / a > < span class = "lineno" > 134< / span >   < span class = "keywordtype" > void< / span > < / div >
< div class = "line" > < a name = "l00135" > < / a > < span class = "lineno" > < a class = "line" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#a67161796f274a7171a67c36bdf1ef1db" > 135< / a > < / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#a67161796f274a7171a67c36bdf1ef1db" > GpuIndexFlat::reset< / a > () {< / div >
< div class = "line" > < a name = "l00136" > < / a > < span class = "lineno" > 136< / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1DeviceScope.html" > DeviceScope< / a > scope(< a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndex.html#a27b56209183310c8d57ffda796f02c6c" > device_< / a > );< / div >
< div class = "line" > < a name = "l00137" > < / a > < span class = "lineno" > 137< / span >   < / div >
< div class = "line" > < a name = "l00138" > < / a > < span class = "lineno" > 138< / span >   < span class = "comment" > // Free the underlying memory< / span > < / div >
< div class = "line" > < a name = "l00139" > < / a > < span class = "lineno" > 139< / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#ae393840fc80403369452c25c9155e067" > data_< / a > -> < a class = "code" href = "classfaiss_1_1gpu_1_1FlatIndex.html#ae06cb2ffd46659b6639b97297546096e" > reset< / a > ();< / div >
< div class = "line" > < a name = "l00140" > < / a > < span class = "lineno" > 140< / span >   this-> < a class = "code" href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > ntotal< / a > = 0;< / 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 >   < / div >
< div class = "line" > < a name = "l00143" > < / a > < span class = "lineno" > 143< / span >   < span class = "keywordtype" > void< / span > < / div >
< div class = "line" > < a name = "l00144" > < / a > < span class = "lineno" > < a class = "line" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#a0e74fad76628ddfb5ae3dc1d1c69f7e8" > 144< / a > < / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#a0e74fad76628ddfb5ae3dc1d1c69f7e8" > GpuIndexFlat::train< / a > (< a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > Index::idx_t< / a > n, < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > * x) {< / div >
< div class = "line" > < a name = "l00145" > < / a > < span class = "lineno" > 145< / span >   < span class = "comment" > // nothing to do< / span > < / div >
< div class = "line" > < a name = "l00146" > < / a > < span class = "lineno" > 146< / span >   }< / div >
< div class = "line" > < a name = "l00147" > < / a > < span class = "lineno" > 147< / span >   < / div >
< div class = "line" > < a name = "l00148" > < / a > < span class = "lineno" > 148< / span >   < span class = "keywordtype" > void< / span > < / div >
< div class = "line" > < a name = "l00149" > < / a > < span class = "lineno" > < a class = "line" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#aca24d09a00743aa3087c1a14a66995b9" > 149< / a > < / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#aca24d09a00743aa3087c1a14a66995b9" > GpuIndexFlat::add< / a > (< a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > Index::idx_t< / a > n, < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > * x) {< / div >
< div class = "line" > < a name = "l00150" > < / a > < span class = "lineno" > 150< / span >   < span class = "comment" > // Due to GPU indexing in int32, we can' t store more than this< / span > < / div >
< div class = "line" > < a name = "l00151" > < / a > < span class = "lineno" > 151< / span >   < span class = "comment" > // number of vectors on a GPU< / span > < / div >
< div class = "line" > < a name = "l00152" > < / a > < span class = "lineno" > 152< / span >   FAISS_ASSERT(this-> < a class = "code" href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > ntotal< / a > + n < =< / div >
< div class = "line" > < a name = "l00153" > < / a > < span class = "lineno" > 153< / span >   (< a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > faiss::Index::idx_t< / a > ) std::numeric_limits< int> ::max());< / 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 >   < span class = "keywordflow" > if< / span > (n > 0) {< / div >
< div class = "line" > < a name = "l00156" > < / a > < span class = "lineno" > 156< / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1DeviceScope.html" > DeviceScope< / a > scope(< a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndex.html#a27b56209183310c8d57ffda796f02c6c" > device_< / a > );< / div >
< div class = "line" > < a name = "l00157" > < / a > < span class = "lineno" > 157< / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#ae393840fc80403369452c25c9155e067" > data_< / a > -> < a class = "code" href = "classfaiss_1_1gpu_1_1FlatIndex.html#ab91c9ddf7dd258620f424619cb029e22" > add< / a > (x, n, < a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndex.html#a17b82a8a11783da6eb1b07c9aab98c36" > resources_< / a > -> getDefaultStream(< a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndex.html#a27b56209183310c8d57ffda796f02c6c" > device_< / a > ));< / div >
< div class = "line" > < a name = "l00158" > < / a > < span class = "lineno" > 158< / span >   this-> < a class = "code" href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > ntotal< / a > += n;< / div >
< div class = "line" > < a name = "l00159" > < / a > < span class = "lineno" > 159< / span >   }< / div >
< div class = "line" > < a name = "l00160" > < / a > < span class = "lineno" > 160< / span >   }< / div >
< div class = "line" > < a name = "l00161" > < / a > < span class = "lineno" > 161< / span >   < / div >
< div class = "line" > < a name = "l00162" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1gpu_1_1IntToLong.html" > 162< / a > < / span >   < span class = "keyword" > struct < / span > < a class = "code" href = "structfaiss_1_1gpu_1_1IntToLong.html" > IntToLong< / a > {< / div >
< div class = "line" > < a name = "l00163" > < / a > < span class = "lineno" > 163< / span >   __device__ < span class = "keywordtype" > long< / span > operator()(< span class = "keywordtype" > int< / span > v)< span class = "keyword" > const < / span > { < span class = "keywordflow" > return< / span > (< span class = "keywordtype" > long< / span > ) v; }< / div >
< div class = "line" > < a name = "l00164" > < / a > < span class = "lineno" > 164< / span >   };< / div >
< div class = "line" > < a name = "l00165" > < / a > < span class = "lineno" > 165< / span >   < / div >
< div class = "line" > < a name = "l00166" > < / a > < span class = "lineno" > 166< / span >   < span class = "keywordtype" > void< / span > < / div >
< div class = "line" > < a name = "l00167" > < / a > < span class = "lineno" > < a class = "line" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#ac0f0301829363f920e619f673a4d97f3" > 167< / a > < / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#ac0f0301829363f920e619f673a4d97f3" > GpuIndexFlat::search< / a > (< a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > faiss::Index::idx_t< / a > n,< / div >
< div class = "line" > < a name = "l00168" > < / a > < span class = "lineno" > 168< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > * x,< / div >
< div class = "line" > < a name = "l00169" > < / a > < span class = "lineno" > 169< / span >   < a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > faiss::Index::idx_t< / a > k,< / div >
< div class = "line" > < a name = "l00170" > < / a > < span class = "lineno" > 170< / span >   < span class = "keywordtype" > float< / span > * distances,< / div >
< div class = "line" > < a name = "l00171" > < / a > < span class = "lineno" > 171< / span >   < a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > faiss::Index::idx_t< / a > * labels)< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l00172" > < / a > < span class = "lineno" > 172< / span >   < span class = "keywordflow" > if< / span > (n == 0) {< / div >
< div class = "line" > < a name = "l00173" > < / a > < span class = "lineno" > 173< / span >   < span class = "keywordflow" > return< / span > ;< / div >
< div class = "line" > < a name = "l00174" > < / a > < span class = "lineno" > 174< / span >   }< / div >
< div class = "line" > < a name = "l00175" > < / a > < span class = "lineno" > 175< / span >   < / div >
< div class = "line" > < a name = "l00176" > < / a > < span class = "lineno" > 176< / span >   < span class = "comment" > // For now, only support < = max int results< / span > < / div >
< div class = "line" > < a name = "l00177" > < / a > < span class = "lineno" > 177< / span >   < span class = "comment" > // TODO: handle tiling over arbitrary n to keep within 32 bit bounds< / span > < / div >
< div class = "line" > < a name = "l00178" > < / a > < span class = "lineno" > 178< / span >   FAISS_ASSERT(n < = (< a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > faiss::Index::idx_t< / a > ) std::numeric_limits< int> ::max());< / div >
< div class = "line" > < a name = "l00179" > < / a > < span class = "lineno" > 179< / span >   FAISS_ASSERT(k < = 1024); < span class = "comment" > // select limitation< / span > < / div >
< div class = "line" > < a name = "l00180" > < / a > < span class = "lineno" > 180< / span >   < / div >
< div class = "line" > < a name = "l00181" > < / a > < span class = "lineno" > 181< / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1DeviceScope.html" > DeviceScope< / a > scope(< a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndex.html#a27b56209183310c8d57ffda796f02c6c" > device_< / a > );< / div >
< div class = "line" > < a name = "l00182" > < / a > < span class = "lineno" > 182< / span >   < span class = "keyword" > auto< / span > stream = < a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndex.html#a17b82a8a11783da6eb1b07c9aab98c36" > resources_< / a > -> getDefaultStream(< a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndex.html#a27b56209183310c8d57ffda796f02c6c" > device_< / a > );< / div >
< div class = "line" > < a name = "l00183" > < / a > < span class = "lineno" > 183< / span >   < / div >
< div class = "line" > < a name = "l00184" > < / a > < span class = "lineno" > 184< / span >   < span class = "comment" > // The input vectors may be too large for the GPU, but we still< / span > < / div >
< div class = "line" > < a name = "l00185" > < / a > < span class = "lineno" > 185< / span >   < span class = "comment" > // assume that the output distances and labels are not.< / span > < / div >
< div class = "line" > < a name = "l00186" > < / a > < span class = "lineno" > 186< / span >   < span class = "comment" > // Go ahead and make space for output distances and labels on the< / span > < / div >
< div class = "line" > < a name = "l00187" > < / a > < span class = "lineno" > 187< / span >   < span class = "comment" > // GPU.< / span > < / div >
< div class = "line" > < a name = "l00188" > < / a > < span class = "lineno" > 188< / span >   < span class = "comment" > // If we reach a point where all inputs are too big, we can add< / span > < / div >
< div class = "line" > < a name = "l00189" > < / a > < span class = "lineno" > 189< / span >   < span class = "comment" > // another level of tiling.< / span > < / div >
< div class = "line" > < a name = "l00190" > < / a > < span class = "lineno" > 190< / span >   < span class = "keyword" > auto< / span > outDistances = toDevice< float, 2> (< a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndex.html#a17b82a8a11783da6eb1b07c9aab98c36" > resources_< / a > ,< / div >
< div class = "line" > < a name = "l00191" > < / a > < span class = "lineno" > 191< / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndex.html#a27b56209183310c8d57ffda796f02c6c" > device_< / a > ,< / div >
< div class = "line" > < a name = "l00192" > < / a > < span class = "lineno" > 192< / span >   distances,< / div >
< div class = "line" > < a name = "l00193" > < / a > < span class = "lineno" > 193< / span >   stream,< / div >
< div class = "line" > < a name = "l00194" > < / a > < span class = "lineno" > 194< / span >   {(int) n, (< span class = "keywordtype" > int< / span > ) k});< / div >
< div class = "line" > < a name = "l00195" > < / a > < span class = "lineno" > 195< / span >   < / div >
< div class = "line" > < a name = "l00196" > < / a > < span class = "lineno" > 196< / span >   < span class = "comment" > // FlatIndex only supports an interface returning int indices< / span > < / div >
< div class = "line" > < a name = "l00197" > < / a > < span class = "lineno" > 197< / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1DeviceTensor.html" > DeviceTensor< int, 2, true> < / a > outIntIndices(< / div >
< div class = "line" > < a name = "l00198" > < / a > < span class = "lineno" > 198< / span >   resources_-> getMemoryManagerCurrentDevice(),< / div >
< div class = "line" > < a name = "l00199" > < / a > < span class = "lineno" > 199< / span >   {(int) n, (< span class = "keywordtype" > int< / span > ) k}, stream);< / 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 = "keywordtype" > bool< / span > usePaged = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00202" > < / a > < span class = "lineno" > 202< / span >   < / div >
< div class = "line" > < a name = "l00203" > < / a > < span class = "lineno" > 203< / span >   < span class = "keywordflow" > if< / span > (getDeviceForAddress(x) == -1) {< / div >
< div class = "line" > < a name = "l00204" > < / a > < span class = "lineno" > 204< / span >   < span class = "comment" > // It is possible that the user is querying for a vector set size< / span > < / div >
< div class = "line" > < a name = "l00205" > < / a > < span class = "lineno" > 205< / span >   < span class = "comment" > // `x` that won' t fit on the GPU.< / span > < / div >
< div class = "line" > < a name = "l00206" > < / a > < span class = "lineno" > 206< / span >   < span class = "comment" > // In this case, we will have to handle paging of the data from CPU< / span > < / div >
< div class = "line" > < a name = "l00207" > < / a > < span class = "lineno" > 207< / span >   < span class = "comment" > // -> GPU.< / span > < / div >
< div class = "line" > < a name = "l00208" > < / a > < span class = "lineno" > 208< / span >   < span class = "comment" > // Currently, we don' t handle the case where the output data won' t< / span > < / div >
< div class = "line" > < a name = "l00209" > < / a > < span class = "lineno" > 209< / span >   < span class = "comment" > // fit on the GPU (e.g., n * k is too large for the GPU memory).< / span > < / div >
< div class = "line" > < a name = "l00210" > < / a > < span class = "lineno" > 210< / span >   < span class = "keywordtype" > size_t< / span > dataSize = (size_t) n * this-> < a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > * < span class = "keyword" > sizeof< / span > (< span class = "keywordtype" > float< / span > );< / div >
< div class = "line" > < a name = "l00211" > < / a > < span class = "lineno" > 211< / span >   < / div >
< div class = "line" > < a name = "l00212" > < / a > < span class = "lineno" > 212< / span >   < span class = "keywordflow" > if< / span > (dataSize > = < a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#aad665a7b5888b4aafd47ae0f8d0e6c40" > minPagedSize_< / a > ) {< / div >
< div class = "line" > < a name = "l00213" > < / a > < span class = "lineno" > 213< / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#afedeff5442b6ed94f856cecb8d8e598d" > searchFromCpuPaged_< / a > (n, x, k,< / div >
< div class = "line" > < a name = "l00214" > < / a > < span class = "lineno" > 214< / span >   outDistances.data(),< / div >
< div class = "line" > < a name = "l00215" > < / a > < span class = "lineno" > 215< / span >   outIntIndices.data());< / div >
< div class = "line" > < a name = "l00216" > < / a > < span class = "lineno" > 216< / span >   usePaged = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00217" > < / a > < span class = "lineno" > 217< / span >   }< / div >
< div class = "line" > < a name = "l00218" > < / a > < span class = "lineno" > 218< / span >   }< / div >
< div class = "line" > < a name = "l00219" > < / a > < span class = "lineno" > 219< / span >   < / div >
< div class = "line" > < a name = "l00220" > < / a > < span class = "lineno" > 220< / span >   < span class = "keywordflow" > if< / span > (!usePaged) {< / div >
< div class = "line" > < a name = "l00221" > < / a > < span class = "lineno" > 221< / span >   searchNonPaged_(n, x, k,< / div >
< div class = "line" > < a name = "l00222" > < / a > < span class = "lineno" > 222< / span >   outDistances.data(),< / div >
< div class = "line" > < a name = "l00223" > < / a > < span class = "lineno" > 223< / span >   outIntIndices.data());< / 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 = "comment" > // Convert and copy int indices out< / span > < / div >
< div class = "line" > < a name = "l00227" > < / a > < span class = "lineno" > 227< / span >   < span class = "keyword" > auto< / span > outIndices = toDevice< faiss::Index::idx_t, 2> (< a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndex.html#a17b82a8a11783da6eb1b07c9aab98c36" > resources_< / a > ,< / div >
< div class = "line" > < a name = "l00228" > < / a > < span class = "lineno" > 228< / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndex.html#a27b56209183310c8d57ffda796f02c6c" > device_< / a > ,< / div >
< div class = "line" > < a name = "l00229" > < / a > < span class = "lineno" > 229< / span >   labels,< / div >
< div class = "line" > < a name = "l00230" > < / a > < span class = "lineno" > 230< / span >   stream,< / div >
< div class = "line" > < a name = "l00231" > < / a > < span class = "lineno" > 231< / span >   {(int) n, (< span class = "keywordtype" > int< / span > ) k});< / div >
< div class = "line" > < a name = "l00232" > < / a > < span class = "lineno" > 232< / span >   < / div >
< div class = "line" > < a name = "l00233" > < / a > < span class = "lineno" > 233< / span >   < span class = "comment" > // Convert int to long< / span > < / div >
< div class = "line" > < a name = "l00234" > < / a > < span class = "lineno" > 234< / span >   thrust::transform(thrust::cuda::par.on(stream),< / div >
< div class = "line" > < a name = "l00235" > < / a > < span class = "lineno" > 235< / span >   outIntIndices.data(),< / div >
< div class = "line" > < a name = "l00236" > < / a > < span class = "lineno" > 236< / span >   outIntIndices.end(),< / div >
< div class = "line" > < a name = "l00237" > < / a > < span class = "lineno" > 237< / span >   outIndices.data(),< / div >
< div class = "line" > < a name = "l00238" > < / a > < span class = "lineno" > 238< / span >   < a class = "code" href = "structfaiss_1_1gpu_1_1IntToLong.html" > IntToLong< / a > ());< / 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 = "comment" > // Copy back if necessary< / span > < / div >
< div class = "line" > < a name = "l00241" > < / a > < span class = "lineno" > 241< / span >   fromDevice< float, 2> (outDistances, distances, stream);< / div >
< div class = "line" > < a name = "l00242" > < / a > < span class = "lineno" > 242< / span >   fromDevice< faiss::Index::idx_t, 2> (outIndices, labels, stream);< / div >
< div class = "line" > < a name = "l00243" > < / a > < span class = "lineno" > 243< / span >   }< / div >
< div class = "line" > < a name = "l00244" > < / a > < span class = "lineno" > 244< / span >   < / div >
< div class = "line" > < a name = "l00245" > < / a > < span class = "lineno" > 245< / span >   < span class = "keywordtype" > void< / span > < / div >
< div class = "line" > < a name = "l00246" > < / a > < span class = "lineno" > 246< / span >   GpuIndexFlat::searchNonPaged_(< span class = "keywordtype" > int< / span > n,< / div >
< div class = "line" > < a name = "l00247" > < / a > < span class = "lineno" > 247< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > * x,< / div >
< div class = "line" > < a name = "l00248" > < / a > < span class = "lineno" > 248< / span >   < span class = "keywordtype" > int< / span > k,< / div >
< div class = "line" > < a name = "l00249" > < / a > < span class = "lineno" > 249< / span >   < span class = "keywordtype" > float< / span > * outDistancesData,< / div >
< div class = "line" > < a name = "l00250" > < / a > < span class = "lineno" > 250< / span >   < span class = "keywordtype" > int< / span > * outIndicesData)< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l00251" > < / a > < span class = "lineno" > 251< / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1Tensor.html" > Tensor< float, 2, true> < / a > outDistances(outDistancesData, {n, k});< / div >
< div class = "line" > < a name = "l00252" > < / a > < span class = "lineno" > 252< / span >   Tensor< int, 2, true> outIndices(outIndicesData, {n, k});< / div >
< div class = "line" > < a name = "l00253" > < / a > < span class = "lineno" > 253< / span >   < / div >
< div class = "line" > < a name = "l00254" > < / a > < span class = "lineno" > 254< / span >   < span class = "keyword" > auto< / span > stream = < a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndex.html#a17b82a8a11783da6eb1b07c9aab98c36" > resources_< / a > -> getDefaultStream(< a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndex.html#a27b56209183310c8d57ffda796f02c6c" > device_< / a > );< / div >
< div class = "line" > < a name = "l00255" > < / a > < span class = "lineno" > 255< / span >   < / div >
< div class = "line" > < a name = "l00256" > < / a > < span class = "lineno" > 256< / span >   < span class = "comment" > // Make sure arguments are on the device we desire; use temporary< / span > < / div >
< div class = "line" > < a name = "l00257" > < / a > < span class = "lineno" > 257< / span >   < span class = "comment" > // memory allocations to move it if necessary< / span > < / div >
< div class = "line" > < a name = "l00258" > < / a > < span class = "lineno" > 258< / span >   < span class = "keyword" > auto< / span > vecs = toDevice< float, 2> (< a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndex.html#a17b82a8a11783da6eb1b07c9aab98c36" > resources_< / a > ,< / div >
< div class = "line" > < a name = "l00259" > < / a > < span class = "lineno" > 259< / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndex.html#a27b56209183310c8d57ffda796f02c6c" > device_< / a > ,< / div >
< div class = "line" > < a name = "l00260" > < / a > < span class = "lineno" > 260< / span >   < span class = "keyword" > const_cast< < / span > < span class = "keywordtype" > float< / span > *< span class = "keyword" > > < / span > (x),< / div >
< div class = "line" > < a name = "l00261" > < / a > < span class = "lineno" > 261< / span >   stream,< / div >
< div class = "line" > < a name = "l00262" > < / a > < span class = "lineno" > 262< / span >   {n, (int) this-> < a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > });< / div >
< div class = "line" > < a name = "l00263" > < / a > < span class = "lineno" > 263< / span >   < / div >
< div class = "line" > < a name = "l00264" > < / a > < span class = "lineno" > 264< / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#ae393840fc80403369452c25c9155e067" > data_< / a > -> query(vecs, k, outDistances, outIndices, < span class = "keyword" > true< / span > );< / div >
< div class = "line" > < a name = "l00265" > < / a > < span class = "lineno" > 265< / span >   }< / div >
< div class = "line" > < a name = "l00266" > < / a > < span class = "lineno" > 266< / span >   < / div >
< div class = "line" > < a name = "l00267" > < / a > < span class = "lineno" > 267< / span >   < span class = "keywordtype" > void< / span > < / div >
< div class = "line" > < a name = "l00268" > < / a > < span class = "lineno" > < a class = "line" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#afedeff5442b6ed94f856cecb8d8e598d" > 268< / a > < / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#afedeff5442b6ed94f856cecb8d8e598d" > GpuIndexFlat::searchFromCpuPaged_< / a > (< span class = "keywordtype" > int< / span > n,< / div >
< div class = "line" > < a name = "l00269" > < / a > < span class = "lineno" > 269< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > * x,< / div >
< div class = "line" > < a name = "l00270" > < / a > < span class = "lineno" > 270< / span >   < span class = "keywordtype" > int< / span > k,< / div >
< div class = "line" > < a name = "l00271" > < / a > < span class = "lineno" > 271< / span >   < span class = "keywordtype" > float< / span > * outDistancesData,< / div >
< div class = "line" > < a name = "l00272" > < / a > < span class = "lineno" > 272< / span >   < span class = "keywordtype" > int< / span > * outIndicesData)< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l00273" > < / a > < span class = "lineno" > 273< / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1Tensor.html" > Tensor< float, 2, true> < / a > outDistances(outDistancesData, {n, k});< / div >
< div class = "line" > < a name = "l00274" > < / a > < span class = "lineno" > 274< / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1Tensor.html" > Tensor< int, 2, true> < / a > outIndices(outIndicesData, {n, k});< / div >
< div class = "line" > < a name = "l00275" > < / a > < span class = "lineno" > 275< / span >   < / div >
< div class = "line" > < a name = "l00276" > < / a > < span class = "lineno" > 276< / span >   < span class = "comment" > // Is pinned memory available?< / span > < / div >
< div class = "line" > < a name = "l00277" > < / a > < span class = "lineno" > 277< / span >   < span class = "keyword" > auto< / span > pinnedAlloc = resources_-> getPinnedMemory();< / div >
< div class = "line" > < a name = "l00278" > < / a > < span class = "lineno" > 278< / span >   < span class = "keywordtype" > int< / span > pageSizeInVecs =< / div >
< div class = "line" > < a name = "l00279" > < / a > < span class = "lineno" > 279< / span >   (int) ((pinnedAlloc.second / 2) / (< span class = "keyword" > sizeof< / span > (float) * this-> < a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > ));< / div >
< div class = "line" > < a name = "l00280" > < / a > < span class = "lineno" > 280< / span >   < / div >
< div class = "line" > < a name = "l00281" > < / a > < span class = "lineno" > 281< / span >   < span class = "keywordflow" > if< / span > (!pinnedAlloc.first || pageSizeInVecs < 1) {< / div >
< div class = "line" > < a name = "l00282" > < / a > < span class = "lineno" > 282< / span >   < span class = "comment" > // Just page without overlapping copy with compute< / span > < / div >
< div class = "line" > < a name = "l00283" > < / a > < span class = "lineno" > 283< / span >   < span class = "keywordtype" > int< / span > batchSize = utils::nextHighestPowerOf2(< / div >
< div class = "line" > < a name = "l00284" > < / a > < span class = "lineno" > 284< / span >   (< span class = "keywordtype" > int< / span > ) ((< span class = "keywordtype" > size_t< / span > ) kNonPinnedPageSize /< / div >
< div class = "line" > < a name = "l00285" > < / a > < span class = "lineno" > 285< / span >   (< span class = "keyword" > sizeof< / span > (< span class = "keywordtype" > float< / span > ) * this-> < a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > )));< / div >
< div class = "line" > < a name = "l00286" > < / a > < span class = "lineno" > 286< / span >   < / div >
< div class = "line" > < a name = "l00287" > < / a > < span class = "lineno" > 287< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > cur = 0; cur < n; cur += batchSize) {< / div >
< div class = "line" > < a name = "l00288" > < / a > < span class = "lineno" > 288< / span >   < span class = "keywordtype" > int< / span > num = std::min(batchSize, n - cur);< / div >
< div class = "line" > < a name = "l00289" > < / a > < span class = "lineno" > 289< / span >   < / div >
< div class = "line" > < a name = "l00290" > < / a > < span class = "lineno" > 290< / span >   < span class = "keyword" > auto< / span > outDistancesSlice = outDistances.narrowOutermost(cur, num);< / div >
< div class = "line" > < a name = "l00291" > < / a > < span class = "lineno" > 291< / span >   < span class = "keyword" > auto< / span > outIndicesSlice = outIndices.narrowOutermost(cur, num);< / div >
< div class = "line" > < a name = "l00292" > < / a > < span class = "lineno" > 292< / span >   < / div >
< div class = "line" > < a name = "l00293" > < / a > < span class = "lineno" > 293< / span >   searchNonPaged_(num,< / div >
< div class = "line" > < a name = "l00294" > < / a > < span class = "lineno" > 294< / span >   x + (< span class = "keywordtype" > size_t< / span > ) cur * this-> d,< / div >
< div class = "line" > < a name = "l00295" > < / a > < span class = "lineno" > 295< / span >   k,< / div >
< div class = "line" > < a name = "l00296" > < / a > < span class = "lineno" > 296< / span >   outDistancesSlice.data(),< / div >
< div class = "line" > < a name = "l00297" > < / a > < span class = "lineno" > 297< / span >   outIndicesSlice.data());< / div >
< div class = "line" > < a name = "l00298" > < / a > < span class = "lineno" > 298< / span >   }< / div >
< div class = "line" > < a name = "l00299" > < / a > < span class = "lineno" > 299< / span >   < / div >
< div class = "line" > < a name = "l00300" > < / a > < span class = "lineno" > 300< / span >   < span class = "keywordflow" > return< / span > ;< / div >
< div class = "line" > < a name = "l00301" > < / a > < span class = "lineno" > 301< / span >   }< / div >
< div class = "line" > < a name = "l00302" > < / a > < span class = "lineno" > 302< / span >   < / div >
< div class = "line" > < a name = "l00303" > < / a > < span class = "lineno" > 303< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l00304" > < / a > < span class = "lineno" > 304< / span >   < span class = "comment" > // Pinned memory is available, so we can overlap copy with compute.< / span > < / div >
< div class = "line" > < a name = "l00305" > < / a > < span class = "lineno" > 305< / span >   < span class = "comment" > // We use two pinned memory buffers, and triple-buffer the< / span > < / div >
< div class = "line" > < a name = "l00306" > < / a > < span class = "lineno" > 306< / span >   < span class = "comment" > // procedure:< / span > < / div >
< div class = "line" > < a name = "l00307" > < / a > < span class = "lineno" > 307< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l00308" > < / a > < span class = "lineno" > 308< / span >   < span class = "comment" > // 1 CPU copy -> pinned< / span > < / div >
< div class = "line" > < a name = "l00309" > < / a > < span class = "lineno" > 309< / span >   < span class = "comment" > // 2 pinned copy -> GPU< / span > < / div >
< div class = "line" > < a name = "l00310" > < / a > < span class = "lineno" > 310< / span >   < span class = "comment" > // 3 GPU compute< / span > < / div >
< div class = "line" > < a name = "l00311" > < / a > < span class = "lineno" > 311< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l00312" > < / a > < span class = "lineno" > 312< / span >   < span class = "comment" > // 1 2 3 1 2 3 ... (pinned buf A)< / span > < / div >
< div class = "line" > < a name = "l00313" > < / a > < span class = "lineno" > 313< / span >   < span class = "comment" > // 1 2 3 1 2 ... (pinned buf B)< / span > < / div >
< div class = "line" > < a name = "l00314" > < / a > < span class = "lineno" > 314< / span >   < span class = "comment" > // 1 2 3 1 ... (pinned buf A)< / span > < / div >
< div class = "line" > < a name = "l00315" > < / a > < span class = "lineno" > 315< / span >   < span class = "comment" > // time -> < / span > < / div >
< div class = "line" > < a name = "l00316" > < / a > < span class = "lineno" > 316< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l00317" > < / a > < span class = "lineno" > 317< / span >   < span class = "keyword" > auto< / span > defaultStream = resources_-> getDefaultStream(device_);< / div >
< div class = "line" > < a name = "l00318" > < / a > < span class = "lineno" > 318< / span >   < span class = "keyword" > auto< / span > copyStream = resources_-> getAsyncCopyStream(device_);< / div >
< div class = "line" > < a name = "l00319" > < / a > < span class = "lineno" > 319< / span >   < / div >
< div class = "line" > < a name = "l00320" > < / a > < span class = "lineno" > 320< / span >   FAISS_ASSERT((< span class = "keywordtype" > size_t< / span > ) pageSizeInVecs * this-> < a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > < =< / div >
< div class = "line" > < a name = "l00321" > < / a > < span class = "lineno" > 321< / span >   (< span class = "keywordtype" > size_t< / span > ) std::numeric_limits< int> ::max());< / div >
< div class = "line" > < a name = "l00322" > < / a > < span class = "lineno" > 322< / span >   < / div >
< div class = "line" > < a name = "l00323" > < / a > < span class = "lineno" > 323< / span >   < span class = "keywordtype" > float< / span > * bufPinnedA = (< span class = "keywordtype" > float< / span > *) pinnedAlloc.first;< / div >
< div class = "line" > < a name = "l00324" > < / a > < span class = "lineno" > 324< / span >   < span class = "keywordtype" > float< / span > * bufPinnedB = bufPinnedA + (< span class = "keywordtype" > size_t< / span > ) pageSizeInVecs * this-> < a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > ;< / div >
< div class = "line" > < a name = "l00325" > < / a > < span class = "lineno" > 325< / span >   < span class = "keywordtype" > float< / span > * bufPinned[2] = {bufPinnedA, bufPinnedB};< / div >
< div class = "line" > < a name = "l00326" > < / a > < span class = "lineno" > 326< / span >   < / div >
< div class = "line" > < a name = "l00327" > < / a > < span class = "lineno" > 327< / span >   < span class = "comment" > // Reserve space on the GPU for the destination of the pinned buffer< / span > < / div >
< div class = "line" > < a name = "l00328" > < / a > < span class = "lineno" > 328< / span >   < span class = "comment" > // copy< / span > < / div >
< div class = "line" > < a name = "l00329" > < / a > < span class = "lineno" > 329< / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1DeviceTensor.html" > DeviceTensor< float, 2, true> < / a > bufGpuA(< / div >
< div class = "line" > < a name = "l00330" > < / a > < span class = "lineno" > 330< / span >   resources_-> getMemoryManagerCurrentDevice(),< / div >
< div class = "line" > < a name = "l00331" > < / a > < span class = "lineno" > 331< / span >   {(int) pageSizeInVecs, (< span class = "keywordtype" > int< / span > ) this-> d},< / div >
< div class = "line" > < a name = "l00332" > < / a > < span class = "lineno" > 332< / span >   defaultStream);< / div >
< div class = "line" > < a name = "l00333" > < / a > < span class = "lineno" > 333< / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1DeviceTensor.html" > DeviceTensor< float, 2, true> < / a > bufGpuB(< / div >
< div class = "line" > < a name = "l00334" > < / a > < span class = "lineno" > 334< / span >   resources_-> getMemoryManagerCurrentDevice(),< / div >
< div class = "line" > < a name = "l00335" > < / a > < span class = "lineno" > 335< / span >   {(int) pageSizeInVecs, (< span class = "keywordtype" > int< / span > ) this-> d},< / div >
< div class = "line" > < a name = "l00336" > < / a > < span class = "lineno" > 336< / span >   defaultStream);< / div >
< div class = "line" > < a name = "l00337" > < / a > < span class = "lineno" > 337< / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1DeviceTensor.html" > DeviceTensor< float, 2, true> < / a > * bufGpus[2] = {& bufGpuA, & bufGpuB};< / div >
< div class = "line" > < a name = "l00338" > < / a > < span class = "lineno" > 338< / span >   < / div >
< div class = "line" > < a name = "l00339" > < / a > < span class = "lineno" > 339< / span >   < span class = "comment" > // Copy completion events for the pinned buffers< / span > < / div >
< div class = "line" > < a name = "l00340" > < / a > < span class = "lineno" > 340< / span >   std::unique_ptr< CudaEvent> eventPinnedCopyDone[2];< / div >
< div class = "line" > < a name = "l00341" > < / a > < span class = "lineno" > 341< / span >   < / div >
< div class = "line" > < a name = "l00342" > < / a > < span class = "lineno" > 342< / span >   < span class = "comment" > // Execute completion events for the GPU buffers< / span > < / div >
< div class = "line" > < a name = "l00343" > < / a > < span class = "lineno" > 343< / span >   std::unique_ptr< CudaEvent> eventGpuExecuteDone[2];< / div >
< div class = "line" > < a name = "l00344" > < / a > < span class = "lineno" > 344< / span >   < / div >
< div class = "line" > < a name = "l00345" > < / a > < span class = "lineno" > 345< / span >   < span class = "comment" > // All offsets are in terms of number of vectors; they remain within< / span > < / div >
< div class = "line" > < a name = "l00346" > < / a > < span class = "lineno" > 346< / span >   < span class = "comment" > // int bounds (as this function only handles max in vectors)< / span > < / div >
< div class = "line" > < a name = "l00347" > < / a > < span class = "lineno" > 347< / span >   < / div >
< div class = "line" > < a name = "l00348" > < / a > < span class = "lineno" > 348< / span >   < span class = "comment" > // Current start offset for buffer 1< / span > < / div >
< div class = "line" > < a name = "l00349" > < / a > < span class = "lineno" > 349< / span >   < span class = "keywordtype" > int< / span > cur1 = 0;< / div >
< div class = "line" > < a name = "l00350" > < / a > < span class = "lineno" > 350< / span >   < span class = "keywordtype" > int< / span > cur1BufIndex = 0;< / div >
< div class = "line" > < a name = "l00351" > < / a > < span class = "lineno" > 351< / span >   < / div >
< div class = "line" > < a name = "l00352" > < / a > < span class = "lineno" > 352< / span >   < span class = "comment" > // Current start offset for buffer 2< / span > < / div >
< div class = "line" > < a name = "l00353" > < / a > < span class = "lineno" > 353< / span >   < span class = "keywordtype" > int< / span > cur2 = -1;< / div >
< div class = "line" > < a name = "l00354" > < / a > < span class = "lineno" > 354< / span >   < span class = "keywordtype" > int< / span > cur2BufIndex = 0;< / 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 >   < span class = "comment" > // Current start offset for buffer 3< / span > < / div >
< div class = "line" > < a name = "l00357" > < / a > < span class = "lineno" > 357< / span >   < span class = "keywordtype" > int< / span > cur3 = -1;< / div >
< div class = "line" > < a name = "l00358" > < / a > < span class = "lineno" > 358< / span >   < span class = "keywordtype" > int< / span > cur3BufIndex = 0;< / div >
< div class = "line" > < a name = "l00359" > < / a > < span class = "lineno" > 359< / span >   < / div >
< div class = "line" > < a name = "l00360" > < / a > < span class = "lineno" > 360< / span >   < span class = "keywordflow" > while< / span > (cur3 < n) {< / div >
< div class = "line" > < a name = "l00361" > < / a > < span class = "lineno" > 361< / span >   < span class = "comment" > // Start async pinned -> GPU copy first (buf 2)< / span > < / div >
< div class = "line" > < a name = "l00362" > < / a > < span class = "lineno" > 362< / span >   < span class = "keywordflow" > if< / span > (cur2 != -1 & & cur2 < n) {< / div >
< div class = "line" > < a name = "l00363" > < / a > < span class = "lineno" > 363< / span >   < span class = "comment" > // Copy pinned to GPU< / span > < / div >
< div class = "line" > < a name = "l00364" > < / a > < span class = "lineno" > 364< / span >   < span class = "keywordtype" > int< / span > numToCopy = std::min(pageSizeInVecs, n - cur2);< / div >
< div class = "line" > < a name = "l00365" > < / a > < span class = "lineno" > 365< / span >   < / div >
< div class = "line" > < a name = "l00366" > < / a > < span class = "lineno" > 366< / span >   < span class = "comment" > // Make sure any previous execution has completed before continuing< / span > < / div >
< div class = "line" > < a name = "l00367" > < / a > < span class = "lineno" > 367< / span >   < span class = "keyword" > auto< / span > & eventPrev = eventGpuExecuteDone[cur2BufIndex];< / div >
< div class = "line" > < a name = "l00368" > < / a > < span class = "lineno" > 368< / span >   < span class = "keywordflow" > if< / span > (eventPrev.get()) {< / div >
< div class = "line" > < a name = "l00369" > < / a > < span class = "lineno" > 369< / span >   eventPrev-> streamWaitOnEvent(copyStream);< / div >
< div class = "line" > < a name = "l00370" > < / a > < span class = "lineno" > 370< / span >   }< / div >
< div class = "line" > < a name = "l00371" > < / a > < span class = "lineno" > 371< / span >   < / div >
< div class = "line" > < a name = "l00372" > < / a > < span class = "lineno" > 372< / span >   CUDA_VERIFY(cudaMemcpyAsync(bufGpus[cur2BufIndex]-> data(),< / div >
< div class = "line" > < a name = "l00373" > < / a > < span class = "lineno" > 373< / span >   bufPinned[cur2BufIndex],< / div >
< div class = "line" > < a name = "l00374" > < / a > < span class = "lineno" > 374< / span >   (< span class = "keywordtype" > size_t< / span > ) numToCopy * this-> d * < span class = "keyword" > sizeof< / span > (< span class = "keywordtype" > float< / span > ),< / div >
< div class = "line" > < a name = "l00375" > < / a > < span class = "lineno" > 375< / span >   cudaMemcpyHostToDevice,< / div >
< div class = "line" > < a name = "l00376" > < / a > < span class = "lineno" > 376< / span >   copyStream));< / div >
< div class = "line" > < a name = "l00377" > < / a > < span class = "lineno" > 377< / span >   < / div >
< div class = "line" > < a name = "l00378" > < / a > < span class = "lineno" > 378< / span >   < span class = "comment" > // Mark a completion event in this stream< / span > < / div >
< div class = "line" > < a name = "l00379" > < / a > < span class = "lineno" > 379< / span >   eventPinnedCopyDone[cur2BufIndex] =< / div >
< div class = "line" > < a name = "l00380" > < / a > < span class = "lineno" > 380< / span >   std::move(std::unique_ptr< CudaEvent> (< span class = "keyword" > new< / span > < a class = "code" href = "classfaiss_1_1gpu_1_1CudaEvent.html" > CudaEvent< / a > (copyStream)));< / div >
< div class = "line" > < a name = "l00381" > < / a > < span class = "lineno" > 381< / span >   < / div >
< div class = "line" > < a name = "l00382" > < / a > < span class = "lineno" > 382< / span >   < span class = "comment" > // We pick up from here< / span > < / div >
< div class = "line" > < a name = "l00383" > < / a > < span class = "lineno" > 383< / span >   cur3 = cur2;< / div >
< div class = "line" > < a name = "l00384" > < / a > < span class = "lineno" > 384< / span >   cur2 += numToCopy;< / div >
< div class = "line" > < a name = "l00385" > < / a > < span class = "lineno" > 385< / span >   cur2BufIndex = (cur2BufIndex == 0) ? 1 : 0;< / div >
< div class = "line" > < a name = "l00386" > < / a > < span class = "lineno" > 386< / span >   }< / div >
< div class = "line" > < a name = "l00387" > < / a > < span class = "lineno" > 387< / span >   < / div >
< div class = "line" > < a name = "l00388" > < / a > < span class = "lineno" > 388< / span >   < span class = "keywordflow" > if< / span > (cur3 != -1 & & cur3 < n) {< / div >
< div class = "line" > < a name = "l00389" > < / a > < span class = "lineno" > 389< / span >   < span class = "comment" > // Process on GPU< / span > < / div >
< div class = "line" > < a name = "l00390" > < / a > < span class = "lineno" > 390< / span >   < span class = "keywordtype" > int< / span > numToProcess = std::min(pageSizeInVecs, n - cur3);< / div >
< div class = "line" > < a name = "l00391" > < / a > < span class = "lineno" > 391< / span >   < / div >
< div class = "line" > < a name = "l00392" > < / a > < span class = "lineno" > 392< / span >   < span class = "comment" > // Make sure the previous copy has completed before continuing< / span > < / div >
< div class = "line" > < a name = "l00393" > < / a > < span class = "lineno" > 393< / span >   < span class = "keyword" > auto< / span > & eventPrev = eventPinnedCopyDone[cur3BufIndex];< / div >
< div class = "line" > < a name = "l00394" > < / a > < span class = "lineno" > 394< / span >   FAISS_ASSERT(eventPrev.get());< / div >
< div class = "line" > < a name = "l00395" > < / a > < span class = "lineno" > 395< / span >   < / div >
< div class = "line" > < a name = "l00396" > < / a > < span class = "lineno" > 396< / span >   eventPrev-> streamWaitOnEvent(defaultStream);< / div >
< div class = "line" > < a name = "l00397" > < / a > < span class = "lineno" > 397< / span >   < / div >
< div class = "line" > < a name = "l00398" > < / a > < span class = "lineno" > 398< / span >   < span class = "comment" > // Create tensor wrappers< / span > < / div >
< div class = "line" > < a name = "l00399" > < / a > < span class = "lineno" > 399< / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1DeviceTensor.html" > DeviceTensor< float, 2, true> < / a > input(bufGpus[cur3BufIndex]-> data(),< / div >
< div class = "line" > < a name = "l00400" > < / a > < span class = "lineno" > 400< / span >   {numToProcess, this-> d});< / div >
< div class = "line" > < a name = "l00401" > < / a > < span class = "lineno" > 401< / span >   < span class = "keyword" > auto< / span > outDistancesSlice = outDistances.< a class = "code" href = "classfaiss_1_1gpu_1_1Tensor.html#a782cd978394660371a22229f02e49e60" > narrowOutermost< / a > (cur3, numToProcess);< / div >
< div class = "line" > < a name = "l00402" > < / a > < span class = "lineno" > 402< / span >   < span class = "keyword" > auto< / span > outIndicesSlice = outIndices.< a class = "code" href = "classfaiss_1_1gpu_1_1Tensor.html#a782cd978394660371a22229f02e49e60" > narrowOutermost< / a > (cur3, numToProcess);< / div >
< div class = "line" > < a name = "l00403" > < / a > < span class = "lineno" > 403< / span >   < / div >
< div class = "line" > < a name = "l00404" > < / a > < span class = "lineno" > 404< / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#ae393840fc80403369452c25c9155e067" > data_< / a > -> query(input, k,< / div >
< div class = "line" > < a name = "l00405" > < / a > < span class = "lineno" > 405< / span >   outDistancesSlice,< / div >
< div class = "line" > < a name = "l00406" > < / a > < span class = "lineno" > 406< / span >   outIndicesSlice, < span class = "keyword" > true< / span > );< / div >
< div class = "line" > < a name = "l00407" > < / a > < span class = "lineno" > 407< / span >   < / div >
< div class = "line" > < a name = "l00408" > < / a > < span class = "lineno" > 408< / span >   < span class = "comment" > // Create completion event< / span > < / div >
< div class = "line" > < a name = "l00409" > < / a > < span class = "lineno" > 409< / span >   eventGpuExecuteDone[cur3BufIndex] =< / div >
< div class = "line" > < a name = "l00410" > < / a > < span class = "lineno" > 410< / span >   std::move(std::unique_ptr< CudaEvent> (< span class = "keyword" > new< / span > < a class = "code" href = "classfaiss_1_1gpu_1_1CudaEvent.html" > CudaEvent< / a > (defaultStream)));< / div >
< div class = "line" > < a name = "l00411" > < / a > < span class = "lineno" > 411< / span >   < / div >
< div class = "line" > < a name = "l00412" > < / a > < span class = "lineno" > 412< / span >   < span class = "comment" > // We pick up from here< / span > < / div >
< div class = "line" > < a name = "l00413" > < / a > < span class = "lineno" > 413< / span >   cur3BufIndex = (cur3BufIndex == 0) ? 1 : 0;< / div >
< div class = "line" > < a name = "l00414" > < / a > < span class = "lineno" > 414< / span >   cur3 += numToProcess;< / div >
< div class = "line" > < a name = "l00415" > < / a > < span class = "lineno" > 415< / span >   }< / div >
< div class = "line" > < a name = "l00416" > < / a > < span class = "lineno" > 416< / span >   < / div >
< div class = "line" > < a name = "l00417" > < / a > < span class = "lineno" > 417< / span >   < span class = "keywordflow" > if< / span > (cur1 < n) {< / div >
< div class = "line" > < a name = "l00418" > < / a > < span class = "lineno" > 418< / span >   < span class = "comment" > // Copy CPU mem to CPU pinned< / span > < / div >
< div class = "line" > < a name = "l00419" > < / a > < span class = "lineno" > 419< / span >   < span class = "keywordtype" > int< / span > numToCopy = std::min(pageSizeInVecs, n - cur1);< / div >
< div class = "line" > < a name = "l00420" > < / a > < span class = "lineno" > 420< / span >   < / div >
< div class = "line" > < a name = "l00421" > < / a > < span class = "lineno" > 421< / span >   < span class = "comment" > // Make sure any previous copy has completed before continuing< / span > < / div >
< div class = "line" > < a name = "l00422" > < / a > < span class = "lineno" > 422< / span >   < span class = "keyword" > auto< / span > & eventPrev = eventPinnedCopyDone[cur1BufIndex];< / div >
< div class = "line" > < a name = "l00423" > < / a > < span class = "lineno" > 423< / span >   < span class = "keywordflow" > if< / span > (eventPrev.get()) {< / div >
< div class = "line" > < a name = "l00424" > < / a > < span class = "lineno" > 424< / span >   eventPrev-> cpuWaitOnEvent();< / div >
< div class = "line" > < a name = "l00425" > < / a > < span class = "lineno" > 425< / span >   }< / div >
< div class = "line" > < a name = "l00426" > < / a > < span class = "lineno" > 426< / span >   < / div >
< div class = "line" > < a name = "l00427" > < / a > < span class = "lineno" > 427< / span >   memcpy(bufPinned[cur1BufIndex],< / div >
< div class = "line" > < a name = "l00428" > < / a > < span class = "lineno" > 428< / span >   x + (< span class = "keywordtype" > size_t< / span > ) cur1 * this-> d,< / div >
< div class = "line" > < a name = "l00429" > < / a > < span class = "lineno" > 429< / span >   (< span class = "keywordtype" > size_t< / span > ) numToCopy * this-> d * < span class = "keyword" > sizeof< / span > (< span class = "keywordtype" > float< / 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 = "comment" > // We pick up from here< / span > < / div >
< div class = "line" > < a name = "l00432" > < / a > < span class = "lineno" > 432< / span >   cur2 = cur1;< / div >
< div class = "line" > < a name = "l00433" > < / a > < span class = "lineno" > 433< / span >   cur1 += numToCopy;< / div >
< div class = "line" > < a name = "l00434" > < / a > < span class = "lineno" > 434< / span >   cur1BufIndex = (cur1BufIndex == 0) ? 1 : 0;< / div >
< div class = "line" > < a name = "l00435" > < / a > < span class = "lineno" > 435< / span >   }< / div >
< div class = "line" > < a name = "l00436" > < / a > < span class = "lineno" > 436< / span >   }< / 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 = "keywordtype" > void< / span > < / div >
< div class = "line" > < a name = "l00440" > < / a > < span class = "lineno" > < a class = "line" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#a7f1cdf03d3545a43fc91bb5cace3b6fd" > 440< / a > < / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#a7f1cdf03d3545a43fc91bb5cace3b6fd" > GpuIndexFlat::reconstruct< / a > (< a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > faiss::Index::idx_t< / a > key,< / div >
< div class = "line" > < a name = "l00441" > < / a > < span class = "lineno" > 441< / span >   < span class = "keywordtype" > float< / span > * out)< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l00442" > < / a > < span class = "lineno" > 442< / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1DeviceScope.html" > DeviceScope< / a > scope(device_);< / div >
< div class = "line" > < a name = "l00443" > < / a > < span class = "lineno" > 443< / span >   < / div >
< div class = "line" > < a name = "l00444" > < / a > < span class = "lineno" > 444< / span >   FAISS_ASSERT(key < this-> < a class = "code" href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > ntotal< / a > );< / div >
< div class = "line" > < a name = "l00445" > < / a > < span class = "lineno" > 445< / span >   < span class = "keyword" > auto< / span > stream = resources_-> getDefaultStream(device_);< / div >
< div class = "line" > < a name = "l00446" > < / a > < span class = "lineno" > 446< / span >   < / div >
< div class = "line" > < a name = "l00447" > < / a > < span class = "lineno" > 447< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#ad09fbc6ed81eb30533c56a3ef262b022" > useFloat16_< / a > ) {< / div >
< div class = "line" > < a name = "l00448" > < / a > < span class = "lineno" > 448< / span >   < span class = "keyword" > auto< / span > vec = < a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#ae393840fc80403369452c25c9155e067" > data_< / a > -> < a class = "code" href = "classfaiss_1_1gpu_1_1FlatIndex.html#a258b0dd61a9c352ec7d68fa8bac0d7ad" > getVectorsFloat32Copy< / a > (key, 1, stream);< / div >
< div class = "line" > < a name = "l00449" > < / a > < span class = "lineno" > 449< / span >   fromDevice(vec.data(), out, this-> < a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > , stream);< / div >
< div class = "line" > < a name = "l00450" > < / a > < span class = "lineno" > 450< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00451" > < / a > < span class = "lineno" > 451< / span >   < span class = "keyword" > auto< / span > vec = < a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#ae393840fc80403369452c25c9155e067" > data_< / a > -> < a class = "code" href = "classfaiss_1_1gpu_1_1FlatIndex.html#a12058744ffb3fbcbb047872449269c06" > getVectorsFloat32Ref< / a > ()[key];< / div >
< div class = "line" > < a name = "l00452" > < / a > < span class = "lineno" > 452< / span >   fromDevice(vec.data(), out, this-> < a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > , stream);< / div >
< div class = "line" > < a name = "l00453" > < / a > < span class = "lineno" > 453< / span >   }< / div >
< div class = "line" > < a name = "l00454" > < / a > < span class = "lineno" > 454< / span >   }< / div >
< div class = "line" > < a name = "l00455" > < / a > < span class = "lineno" > 455< / span >   < / div >
< div class = "line" > < a name = "l00456" > < / a > < span class = "lineno" > 456< / span >   < span class = "keywordtype" > void< / span > < / div >
< div class = "line" > < a name = "l00457" > < / a > < span class = "lineno" > < a class = "line" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#a472732e9bd8ffb1aa4c3abc31063dd28" > 457< / a > < / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#a472732e9bd8ffb1aa4c3abc31063dd28" > GpuIndexFlat::reconstruct_n< / a > (< a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > faiss::Index::idx_t< / a > i0,< / div >
< div class = "line" > < a name = "l00458" > < / a > < span class = "lineno" > 458< / span >   < a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > faiss::Index::idx_t< / a > num,< / div >
< div class = "line" > < a name = "l00459" > < / a > < span class = "lineno" > 459< / span >   < span class = "keywordtype" > float< / span > * out)< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l00460" > < / a > < span class = "lineno" > 460< / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1DeviceScope.html" > DeviceScope< / a > scope(device_);< / div >
< div class = "line" > < a name = "l00461" > < / a > < span class = "lineno" > 461< / span >   < / div >
< div class = "line" > < a name = "l00462" > < / a > < span class = "lineno" > 462< / span >   FAISS_ASSERT(i0 < this-> < a class = "code" href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > ntotal< / a > );< / div >
< div class = "line" > < a name = "l00463" > < / a > < span class = "lineno" > 463< / span >   FAISS_ASSERT(i0 + num - 1 < this-> ntotal);< / div >
< div class = "line" > < a name = "l00464" > < / a > < span class = "lineno" > 464< / span >   < span class = "keyword" > auto< / span > stream = resources_-> getDefaultStream(device_);< / div >
< div class = "line" > < a name = "l00465" > < / a > < span class = "lineno" > 465< / span >   < / div >
< div class = "line" > < a name = "l00466" > < / a > < span class = "lineno" > 466< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#ad09fbc6ed81eb30533c56a3ef262b022" > useFloat16_< / a > ) {< / div >
< div class = "line" > < a name = "l00467" > < / a > < span class = "lineno" > 467< / span >   < span class = "keyword" > auto< / span > vec = < a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#ae393840fc80403369452c25c9155e067" > data_< / a > -> < a class = "code" href = "classfaiss_1_1gpu_1_1FlatIndex.html#a258b0dd61a9c352ec7d68fa8bac0d7ad" > getVectorsFloat32Copy< / a > (i0, num, stream);< / div >
< div class = "line" > < a name = "l00468" > < / a > < span class = "lineno" > 468< / span >   fromDevice(vec.data(), out, num * this-> < a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > , stream);< / div >
< div class = "line" > < a name = "l00469" > < / a > < span class = "lineno" > 469< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00470" > < / a > < span class = "lineno" > 470< / span >   < span class = "keyword" > auto< / span > vec = < a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#ae393840fc80403369452c25c9155e067" > data_< / a > -> < a class = "code" href = "classfaiss_1_1gpu_1_1FlatIndex.html#a12058744ffb3fbcbb047872449269c06" > getVectorsFloat32Ref< / a > ()[i0];< / div >
< div class = "line" > < a name = "l00471" > < / a > < span class = "lineno" > 471< / span >   fromDevice(vec.data(), out, this-> < a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > * num, stream);< / div >
< div class = "line" > < a name = "l00472" > < / a > < span class = "lineno" > 472< / span >   }< / 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 = "keywordtype" > void< / span > < / div >
< div class = "line" > < a name = "l00476" > < / a > < span class = "lineno" > 476< / span >   GpuIndexFlat::set_typename() {< / div >
< div class = "line" > < a name = "l00477" > < / a > < span class = "lineno" > 477< / span >   < span class = "keywordflow" > if< / span > (this-> < a class = "code" href = "structfaiss_1_1Index.html#a8e18f641854b2bde83ecff0a2f9a6f4e" > metric_type< / a > == faiss::METRIC_L2) {< / div >
< div class = "line" > < a name = "l00478" > < / a > < span class = "lineno" > 478< / span >   this-> index_typename = < span class = "stringliteral" > " GpuL2" < / span > ;< / div >
< div class = "line" > < a name = "l00479" > < / a > < span class = "lineno" > 479< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00480" > < / a > < span class = "lineno" > 480< / span >   this-> index_typename = < span class = "stringliteral" > " GpuIP" < / span > ;< / div >
< div class = "line" > < a name = "l00481" > < / a > < span class = "lineno" > 481< / span >   }< / div >
< div class = "line" > < a name = "l00482" > < / a > < span class = "lineno" > 482< / span >   }< / div >
< div class = "line" > < a name = "l00483" > < / a > < span class = "lineno" > 483< / span >   < / div >
< div class = "line" > < a name = "l00484" > < / a > < span class = "lineno" > 484< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l00485" > < / a > < span class = "lineno" > 485< / span >   < span class = "comment" > // GpuIndexFlatL2< / span > < / div >
< div class = "line" > < a name = "l00486" > < / a > < span class = "lineno" > 486< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l00487" > < / a > < span class = "lineno" > 487< / span >   < / div >
< div class = "line" > < a name = "l00488" > < / a > < span class = "lineno" > < a class = "line" href = "classfaiss_1_1gpu_1_1GpuIndexFlatL2.html#a2056e4356f0628afbee8881eb915406b" > 488< / a > < / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndexFlatL2.html#a2056e4356f0628afbee8881eb915406b" > GpuIndexFlatL2::GpuIndexFlatL2< / a > (< a class = "code" href = "classfaiss_1_1gpu_1_1GpuResources.html" > GpuResources< / a > * resources,< / div >
< div class = "line" > < a name = "l00489" > < / a > < span class = "lineno" > 489< / span >   < span class = "keywordtype" > int< / span > device,< / div >
< div class = "line" > < a name = "l00490" > < / a > < span class = "lineno" > 490< / span >   < span class = "keywordtype" > bool< / span > useFloat16,< / div >
< div class = "line" > < a name = "l00491" > < / a > < span class = "lineno" > 491< / span >   < a class = "code" href = "structfaiss_1_1IndexFlatL2.html" > faiss::IndexFlatL2< / a > * index) :< / div >
< div class = "line" > < a name = "l00492" > < / a > < span class = "lineno" > 492< / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html" > GpuIndexFlat< / a > (resources, device, useFloat16, index) {< / div >
< div class = "line" > < a name = "l00493" > < / a > < span class = "lineno" > 493< / span >   }< / div >
< div class = "line" > < a name = "l00494" > < / a > < span class = "lineno" > 494< / span >   < / div >
< div class = "line" > < a name = "l00495" > < / a > < span class = "lineno" > < a class = "line" href = "classfaiss_1_1gpu_1_1GpuIndexFlatL2.html#adc9431d3117ae6b8fb63fc860b78b8ea" > 495< / a > < / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndexFlatL2.html#a2056e4356f0628afbee8881eb915406b" > GpuIndexFlatL2::GpuIndexFlatL2< / a > (< a class = "code" href = "classfaiss_1_1gpu_1_1GpuResources.html" > GpuResources< / a > * resources,< / div >
< div class = "line" > < a name = "l00496" > < / a > < span class = "lineno" > 496< / span >   < span class = "keywordtype" > int< / span > device,< / div >
< div class = "line" > < a name = "l00497" > < / a > < span class = "lineno" > 497< / span >   < span class = "keywordtype" > int< / span > dims,< / div >
< div class = "line" > < a name = "l00498" > < / a > < span class = "lineno" > 498< / span >   < span class = "keywordtype" > bool< / span > useFloat16) :< / div >
< div class = "line" > < a name = "l00499" > < / a > < span class = "lineno" > 499< / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html" > GpuIndexFlat< / a > (resources, device, dims, useFloat16, faiss::METRIC_L2) {< / 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 >   < / div >
< div class = "line" > < a name = "l00502" > < / a > < span class = "lineno" > 502< / span >   < span class = "keywordtype" > void< / span > < / div >
< div class = "line" > < a name = "l00503" > < / a > < span class = "lineno" > < a class = "line" href = "classfaiss_1_1gpu_1_1GpuIndexFlatL2.html#a9a9de859274bb73e6d8ea02cae5ca9a6" > 503< / a > < / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndexFlatL2.html#a9a9de859274bb73e6d8ea02cae5ca9a6" > GpuIndexFlatL2::copyFrom< / a > (< a class = "code" href = "structfaiss_1_1IndexFlatL2.html" > faiss::IndexFlatL2< / a > * index) {< / div >
< div class = "line" > < a name = "l00504" > < / a > < span class = "lineno" > 504< / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#abb964875e0893de1d8334ca5ad0f62dc" > GpuIndexFlat::copyFrom< / a > (index);< / div >
< div class = "line" > < a name = "l00505" > < / a > < span class = "lineno" > 505< / span >   }< / div >
< div class = "line" > < a name = "l00506" > < / a > < span class = "lineno" > 506< / span >   < / div >
< div class = "line" > < a name = "l00507" > < / a > < span class = "lineno" > 507< / span >   < span class = "keywordtype" > void< / span > < / div >
< div class = "line" > < a name = "l00508" > < / a > < span class = "lineno" > < a class = "line" href = "classfaiss_1_1gpu_1_1GpuIndexFlatL2.html#ab21960d379190b98aaa05ae3877dea09" > 508< / a > < / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndexFlatL2.html#ab21960d379190b98aaa05ae3877dea09" > GpuIndexFlatL2::copyTo< / a > (< a class = "code" href = "structfaiss_1_1IndexFlatL2.html" > faiss::IndexFlatL2< / a > * index) {< / div >
< div class = "line" > < a name = "l00509" > < / a > < span class = "lineno" > 509< / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#a046007ff2fafcafc6ae328769c700e39" > GpuIndexFlat::copyTo< / a > (index);< / div >
< div class = "line" > < a name = "l00510" > < / a > < span class = "lineno" > 510< / span >   }< / div >
< div class = "line" > < a name = "l00511" > < / a > < span class = "lineno" > 511< / span >   < / div >
< div class = "line" > < a name = "l00512" > < / a > < span class = "lineno" > 512< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l00513" > < / a > < span class = "lineno" > 513< / span >   < span class = "comment" > // GpuIndexFlatIP< / span > < / div >
< div class = "line" > < a name = "l00514" > < / a > < span class = "lineno" > 514< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l00515" > < / a > < span class = "lineno" > 515< / span >   < / div >
< div class = "line" > < a name = "l00516" > < / a > < span class = "lineno" > < a class = "line" href = "classfaiss_1_1gpu_1_1GpuIndexFlatIP.html#a5e145b6277778b884508eb351efb1814" > 516< / a > < / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndexFlatIP.html#a5e145b6277778b884508eb351efb1814" > GpuIndexFlatIP::GpuIndexFlatIP< / a > (< a class = "code" href = "classfaiss_1_1gpu_1_1GpuResources.html" > GpuResources< / a > * resources,< / div >
< div class = "line" > < a name = "l00517" > < / a > < span class = "lineno" > 517< / span >   < span class = "keywordtype" > int< / span > device,< / div >
< div class = "line" > < a name = "l00518" > < / a > < span class = "lineno" > 518< / span >   < span class = "keywordtype" > bool< / span > useFloat16,< / div >
< div class = "line" > < a name = "l00519" > < / a > < span class = "lineno" > 519< / span >   < a class = "code" href = "structfaiss_1_1IndexFlatIP.html" > faiss::IndexFlatIP< / a > * index) :< / div >
< div class = "line" > < a name = "l00520" > < / a > < span class = "lineno" > 520< / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html" > GpuIndexFlat< / a > (resources, device, useFloat16, index) {< / 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 >   < / div >
< div class = "line" > < a name = "l00523" > < / a > < span class = "lineno" > < a class = "line" href = "classfaiss_1_1gpu_1_1GpuIndexFlatIP.html#a661fe5a0dc4de29be93d0dc887fe2176" > 523< / a > < / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndexFlatIP.html#a5e145b6277778b884508eb351efb1814" > GpuIndexFlatIP::GpuIndexFlatIP< / a > (< a class = "code" href = "classfaiss_1_1gpu_1_1GpuResources.html" > GpuResources< / a > * resources,< / div >
< div class = "line" > < a name = "l00524" > < / a > < span class = "lineno" > 524< / span >   < span class = "keywordtype" > int< / span > device,< / div >
< div class = "line" > < a name = "l00525" > < / a > < span class = "lineno" > 525< / span >   < span class = "keywordtype" > int< / span > dims,< / div >
< div class = "line" > < a name = "l00526" > < / a > < span class = "lineno" > 526< / span >   < span class = "keywordtype" > bool< / span > useFloat16) :< / div >
< div class = "line" > < a name = "l00527" > < / a > < span class = "lineno" > 527< / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html" > GpuIndexFlat< / a > (resources, device, dims, useFloat16,< / div >
< div class = "line" > < a name = "l00528" > < / a > < span class = "lineno" > 528< / span >   faiss::METRIC_INNER_PRODUCT) {< / 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 = "keywordtype" > void< / span > < / div >
< div class = "line" > < a name = "l00532" > < / a > < span class = "lineno" > < a class = "line" href = "classfaiss_1_1gpu_1_1GpuIndexFlatIP.html#aa181b1778a8dca81ac5cf6cd6a3d5f1d" > 532< / a > < / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndexFlatIP.html#aa181b1778a8dca81ac5cf6cd6a3d5f1d" > GpuIndexFlatIP::copyFrom< / a > (< a class = "code" href = "structfaiss_1_1IndexFlatIP.html" > faiss::IndexFlatIP< / a > * index) {< / div >
< div class = "line" > < a name = "l00533" > < / a > < span class = "lineno" > 533< / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#abb964875e0893de1d8334ca5ad0f62dc" > GpuIndexFlat::copyFrom< / a > (index);< / div >
< div class = "line" > < a name = "l00534" > < / a > < span class = "lineno" > 534< / span >   }< / div >
< div class = "line" > < a name = "l00535" > < / a > < span class = "lineno" > 535< / span >   < / div >
< div class = "line" > < a name = "l00536" > < / a > < span class = "lineno" > 536< / span >   < span class = "keywordtype" > void< / span > < / div >
< div class = "line" > < a name = "l00537" > < / a > < span class = "lineno" > < a class = "line" href = "classfaiss_1_1gpu_1_1GpuIndexFlatIP.html#af70d0fe80cf3bf16ffffd8b16ed64f08" > 537< / a > < / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndexFlatIP.html#af70d0fe80cf3bf16ffffd8b16ed64f08" > GpuIndexFlatIP::copyTo< / a > (< a class = "code" href = "structfaiss_1_1IndexFlatIP.html" > faiss::IndexFlatIP< / a > * index) {< / div >
< div class = "line" > < a name = "l00538" > < / a > < span class = "lineno" > 538< / span >   < a class = "code" href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#a046007ff2fafcafc6ae328769c700e39" > GpuIndexFlat::copyTo< / a > (index);< / div >
< div class = "line" > < a name = "l00539" > < / a > < span class = "lineno" > 539< / span >   }< / div >
< div class = "line" > < a name = "l00540" > < / a > < span class = "lineno" > 540< / span >   < / div >
< div class = "line" > < a name = "l00541" > < / a > < span class = "lineno" > 541< / span >   } } < span class = "comment" > // namespace< / span > < / div >
< div class = "ttc" id = "classfaiss_1_1gpu_1_1FlatIndex_html_a258b0dd61a9c352ec7d68fa8bac0d7ad" > < div class = "ttname" > < a href = "classfaiss_1_1gpu_1_1FlatIndex.html#a258b0dd61a9c352ec7d68fa8bac0d7ad" > faiss::gpu::FlatIndex::getVectorsFloat32Copy< / a > < / div > < div class = "ttdeci" > DeviceTensor< float, 2, true > getVectorsFloat32Copy(cudaStream_t stream)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "FlatIndex_8cu_source.html#l00073" > FlatIndex.cu:73< / a > < / div > < / div >
< 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#l00024" > IndexFlat.h:24< / a > < / div > < / div >
< div class = "ttc" id = "classfaiss_1_1gpu_1_1GpuIndexFlat_html_adb02cf2994b32a981cfa10850607c1f5" > < div class = "ttname" > < a href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#adb02cf2994b32a981cfa10850607c1f5" > faiss::gpu::GpuIndexFlat::GpuIndexFlat< / a > < / div > < div class = "ttdeci" > GpuIndexFlat(GpuResources *resources, int device, bool useFloat16, const faiss::IndexFlat *index)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "GpuIndexFlat_8cu_source.html#l00033" > GpuIndexFlat.cu:33< / a > < / div > < / div >
< div class = "ttc" id = "classfaiss_1_1gpu_1_1GpuIndexFlatL2_html_a9a9de859274bb73e6d8ea02cae5ca9a6" > < div class = "ttname" > < a href = "classfaiss_1_1gpu_1_1GpuIndexFlatL2.html#a9a9de859274bb73e6d8ea02cae5ca9a6" > faiss::gpu::GpuIndexFlatL2::copyFrom< / a > < / div > < div class = "ttdeci" > void copyFrom(faiss::IndexFlatL2 *index)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "GpuIndexFlat_8cu_source.html#l00503" > GpuIndexFlat.cu:503< / a > < / div > < / div >
< div class = "ttc" id = "classfaiss_1_1gpu_1_1GpuIndexFlat_html_a046007ff2fafcafc6ae328769c700e39" > < div class = "ttname" > < a href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#a046007ff2fafcafc6ae328769c700e39" > faiss::gpu::GpuIndexFlat::copyTo< / a > < / div > < div class = "ttdeci" > void copyTo(faiss::IndexFlat *index) const < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "GpuIndexFlat_8cu_source.html#l00107" > GpuIndexFlat.cu:107< / a > < / div > < / div >
< div class = "ttc" id = "classfaiss_1_1gpu_1_1GpuIndexFlat_html_a472732e9bd8ffb1aa4c3abc31063dd28" > < div class = "ttname" > < a href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#a472732e9bd8ffb1aa4c3abc31063dd28" > faiss::gpu::GpuIndexFlat::reconstruct_n< / a > < / div > < div class = "ttdeci" > void reconstruct_n(faiss::Index::idx_t i0, faiss::Index::idx_t num, float *out) const override< / div > < div class = "ttdoc" > Batch reconstruction method. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "GpuIndexFlat_8cu_source.html#l00457" > GpuIndexFlat.cu:457< / a > < / div > < / div >
< div class = "ttc" id = "classfaiss_1_1gpu_1_1GpuIndexFlat_html_a44532c7e5165d36e5da57272d37544ae" > < div class = "ttname" > < a href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#a44532c7e5165d36e5da57272d37544ae" > faiss::gpu::GpuIndexFlat::getMinPagingSize< / a > < / div > < div class = "ttdeci" > size_t getMinPagingSize() const < / div > < div class = "ttdoc" > Returns the current minimum data size for paged searches. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "GpuIndexFlat_8cu_source.html#l00071" > GpuIndexFlat.cu:71< / a > < / div > < / div >
< div class = "ttc" id = "classfaiss_1_1gpu_1_1FlatIndex_html_a6988df17792dae30f24cc859728777e6" > < div class = "ttname" > < a href = "classfaiss_1_1gpu_1_1FlatIndex.html#a6988df17792dae30f24cc859728777e6" > faiss::gpu::FlatIndex::getSize< / a > < / div > < div class = "ttdeci" > int getSize() const < / div > < div class = "ttdoc" > Returns the number of vectors we contain. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "FlatIndex_8cu_source.html#l00040" > FlatIndex.cu:40< / a > < / div > < / div >
< div class = "ttc" id = "classfaiss_1_1gpu_1_1FlatIndex_html" > < div class = "ttname" > < a href = "classfaiss_1_1gpu_1_1FlatIndex.html" > faiss::gpu::FlatIndex< / a > < / div > < div class = "ttdoc" > Holder of GPU resources for a particular flat index. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "FlatIndex_8cuh_source.html#l00023" > FlatIndex.cuh:23< / a > < / div > < / div >
< div class = "ttc" id = "classfaiss_1_1gpu_1_1GpuIndexFlatL2_html_ab21960d379190b98aaa05ae3877dea09" > < div class = "ttname" > < a href = "classfaiss_1_1gpu_1_1GpuIndexFlatL2.html#ab21960d379190b98aaa05ae3877dea09" > faiss::gpu::GpuIndexFlatL2::copyTo< / a > < / div > < div class = "ttdeci" > void copyTo(faiss::IndexFlatL2 *index)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "GpuIndexFlat_8cu_source.html#l00508" > GpuIndexFlat.cu:508< / 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#l00081" > IndexFlat.h:81< / a > < / div > < / div >
< div class = "ttc" id = "classfaiss_1_1gpu_1_1GpuIndexFlat_html_afedeff5442b6ed94f856cecb8d8e598d" > < div class = "ttname" > < a href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#afedeff5442b6ed94f856cecb8d8e598d" > faiss::gpu::GpuIndexFlat::searchFromCpuPaged_< / a > < / div > < div class = "ttdeci" > void searchFromCpuPaged_(int n, const float *x, int k, float *outDistancesData, int *outIndicesData) const < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "GpuIndexFlat_8cu_source.html#l00268" > GpuIndexFlat.cu:268< / a > < / div > < / div >
< div class = "ttc" id = "classfaiss_1_1gpu_1_1Tensor_html_a782cd978394660371a22229f02e49e60" > < div class = "ttname" > < a href = "classfaiss_1_1gpu_1_1Tensor.html#a782cd978394660371a22229f02e49e60" > faiss::gpu::Tensor::narrowOutermost< / a > < / div > < div class = "ttdeci" > __host__ __device__ Tensor< T, Dim, Contig, IndexT, PtrTraits > narrowOutermost(IndexT start, IndexT size)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "Tensor-inl_8cuh_source.html#l00553" > Tensor-inl.cuh:553< / a > < / div > < / div >
< div class = "ttc" id = "classfaiss_1_1gpu_1_1GpuIndexFlat_html_ad09fbc6ed81eb30533c56a3ef262b022" > < div class = "ttname" > < a href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#ad09fbc6ed81eb30533c56a3ef262b022" > faiss::gpu::GpuIndexFlat::useFloat16_< / a > < / div > < div class = "ttdeci" > const bool useFloat16_< / div > < div class = "ttdoc" > Whether or not we store our vectors in float32 or float16. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "GpuIndexFlat_8h_source.html#l00122" > GpuIndexFlat.h:122< / a > < / div > < / div >
< div class = "ttc" id = "classfaiss_1_1gpu_1_1GpuIndexFlat_html_a51b5aa0d68670ec7ccb32b0353c7387f" > < div class = "ttname" > < a href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#a51b5aa0d68670ec7ccb32b0353c7387f" > faiss::gpu::GpuIndexFlat::getNumVecs< / a > < / div > < div class = "ttdeci" > size_t getNumVecs() const < / div > < div class = "ttdoc" > Returns the number of vectors we contain. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "GpuIndexFlat_8cu_source.html#l00130" > GpuIndexFlat.cu:130< / a > < / div > < / div >
< div class = "ttc" id = "classfaiss_1_1gpu_1_1GpuResources_html" > < div class = "ttname" > < a href = "classfaiss_1_1gpu_1_1GpuResources.html" > faiss::gpu::GpuResources< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "GpuResources_8h_source.html#l00024" > GpuResources.h:24< / a > < / div > < / div >
< 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#l00075" > IndexFlat.h:75< / a > < / div > < / div >
< div class = "ttc" id = "classfaiss_1_1gpu_1_1GpuIndexFlat_html_a752f8129ccb94fa0c6f346ae03ff536d" > < div class = "ttname" > < a href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#a752f8129ccb94fa0c6f346ae03ff536d" > faiss::gpu::GpuIndexFlat::setMinPagingSize< / a > < / div > < div class = "ttdeci" > void setMinPagingSize(size_t size)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "GpuIndexFlat_8cu_source.html#l00066" > GpuIndexFlat.cu:66< / a > < / div > < / div >
< div class = "ttc" id = "classfaiss_1_1gpu_1_1GpuIndex_html" > < div class = "ttname" > < a href = "classfaiss_1_1gpu_1_1GpuIndex.html" > faiss::gpu::GpuIndex< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "GpuIndex_8h_source.html#l00020" > GpuIndex.h:20< / a > < / div > < / div >
< div class = "ttc" id = "classfaiss_1_1gpu_1_1GpuIndex_html_a27b56209183310c8d57ffda796f02c6c" > < div class = "ttname" > < a href = "classfaiss_1_1gpu_1_1GpuIndex.html#a27b56209183310c8d57ffda796f02c6c" > faiss::gpu::GpuIndex::device_< / a > < / div > < div class = "ttdeci" > int device_< / div > < div class = "ttdoc" > The GPU device we are resident on. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "GpuIndex_8h_source.html#l00043" > GpuIndex.h:43< / a > < / div > < / div >
< div class = "ttc" id = "classfaiss_1_1gpu_1_1GpuIndexFlat_html_af9b5ff82eb54a6d0632d515db4ee3994" > < div class = "ttname" > < a href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#af9b5ff82eb54a6d0632d515db4ee3994" > faiss::gpu::GpuIndexFlat::getUseFloat16< / a > < / div > < div class = "ttdeci" > bool getUseFloat16() const < / div > < div class = "ttdoc" > Do we store vectors and perform math in float16? < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "GpuIndexFlat_8cu_source.html#l00076" > GpuIndexFlat.cu:76< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1Index_html_a2a002388d2c081c2dbab8508dcefe73d" > < div class = "ttname" > < a href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > faiss::Index::d< / a > < / div > < div class = "ttdeci" > int d< / div > < div class = "ttdoc" > vector dimension < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "Index_8h_source.html#l00066" > Index.h:66< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1gpu_1_1IntToLong_html" > < div class = "ttname" > < a href = "structfaiss_1_1gpu_1_1IntToLong.html" > faiss::gpu::IntToLong< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "GpuIndexFlat_8cu_source.html#l00162" > GpuIndexFlat.cu:162< / a > < / div > < / div >
< div class = "ttc" id = "classfaiss_1_1gpu_1_1GpuIndexFlatL2_html_a2056e4356f0628afbee8881eb915406b" > < div class = "ttname" > < a href = "classfaiss_1_1gpu_1_1GpuIndexFlatL2.html#a2056e4356f0628afbee8881eb915406b" > faiss::gpu::GpuIndexFlatL2::GpuIndexFlatL2< / a > < / div > < div class = "ttdeci" > GpuIndexFlatL2(GpuResources *resources, int device, bool useFloat16, faiss::IndexFlatL2 *index)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "GpuIndexFlat_8cu_source.html#l00488" > GpuIndexFlat.cu:488< / a > < / div > < / div >
< div class = "ttc" id = "classfaiss_1_1gpu_1_1GpuIndexFlat_html_a7f1cdf03d3545a43fc91bb5cace3b6fd" > < div class = "ttname" > < a href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#a7f1cdf03d3545a43fc91bb5cace3b6fd" > faiss::gpu::GpuIndexFlat::reconstruct< / a > < / div > < div class = "ttdeci" > void reconstruct(faiss::Index::idx_t key, float *out) const override< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "GpuIndexFlat_8cu_source.html#l00440" > GpuIndexFlat.cu:440< / a > < / div > < / div >
< div class = "ttc" id = "classfaiss_1_1gpu_1_1GpuIndexFlatIP_html_af70d0fe80cf3bf16ffffd8b16ed64f08" > < div class = "ttname" > < a href = "classfaiss_1_1gpu_1_1GpuIndexFlatIP.html#af70d0fe80cf3bf16ffffd8b16ed64f08" > faiss::gpu::GpuIndexFlatIP::copyTo< / a > < / div > < div class = "ttdeci" > void copyTo(faiss::IndexFlatIP *index)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "GpuIndexFlat_8cu_source.html#l00537" > GpuIndexFlat.cu:537< / a > < / div > < / div >
< div class = "ttc" id = "classfaiss_1_1gpu_1_1GpuIndex_html_a17b82a8a11783da6eb1b07c9aab98c36" > < div class = "ttname" > < a href = "classfaiss_1_1gpu_1_1GpuIndex.html#a17b82a8a11783da6eb1b07c9aab98c36" > faiss::gpu::GpuIndex::resources_< / a > < / div > < div class = "ttdeci" > GpuResources * resources_< / div > < div class = "ttdoc" > Manages streans, cuBLAS handles and scratch memory for devices. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "GpuIndex_8h_source.html#l00040" > GpuIndex.h:40< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1Index_html_a040c6aed1f224f3ea7bf58eebc0c31a4" > < div class = "ttname" > < a href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > faiss::Index::idx_t< / a > < / div > < div class = "ttdeci" > long idx_t< / div > < div class = "ttdoc" > all indices are this type < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "Index_8h_source.html#l00064" > Index.h:64< / a > < / div > < / div >
< div class = "ttc" id = "classfaiss_1_1gpu_1_1FlatIndex_html_ab91c9ddf7dd258620f424619cb029e22" > < div class = "ttname" > < a href = "classfaiss_1_1gpu_1_1FlatIndex.html#ab91c9ddf7dd258620f424619cb029e22" > faiss::gpu::FlatIndex::add< / a > < / div > < div class = "ttdeci" > void add(const float *data, int numVecs, cudaStream_t stream)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "FlatIndex_8cu_source.html#l00177" > FlatIndex.cu:177< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1Index_html_a6970683faa021b7a6f1a0865c0d4eccd" > < div class = "ttname" > < a href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > faiss::Index::ntotal< / a > < / div > < div class = "ttdeci" > idx_t ntotal< / div > < div class = "ttdoc" > total nb of indexed vectors < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "Index_8h_source.html#l00067" > Index.h:67< / a > < / div > < / div >
< div class = "ttc" id = "classfaiss_1_1gpu_1_1GpuIndexFlat_html_abb964875e0893de1d8334ca5ad0f62dc" > < div class = "ttname" > < a href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#abb964875e0893de1d8334ca5ad0f62dc" > faiss::gpu::GpuIndexFlat::copyFrom< / a > < / div > < div class = "ttdeci" > void copyFrom(const faiss::IndexFlat *index)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "GpuIndexFlat_8cu_source.html#l00081" > GpuIndexFlat.cu:81< / a > < / div > < / div >
< div class = "ttc" id = "classfaiss_1_1gpu_1_1Tensor_html" > < div class = "ttname" > < a href = "classfaiss_1_1gpu_1_1Tensor.html" > faiss::gpu::Tensor< / a > < / div > < div class = "ttdoc" > Our tensor type. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "Tensor_8cuh_source.html#l00031" > Tensor.cuh:31< / a > < / div > < / div >
< div class = "ttc" id = "classfaiss_1_1gpu_1_1GpuIndexFlat_html_aca24d09a00743aa3087c1a14a66995b9" > < div class = "ttname" > < a href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#aca24d09a00743aa3087c1a14a66995b9" > faiss::gpu::GpuIndexFlat::add< / a > < / div > < div class = "ttdeci" > void add(Index::idx_t n, const float *x) override< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "GpuIndexFlat_8cu_source.html#l00149" > GpuIndexFlat.cu:149< / a > < / div > < / div >
< div class = "ttc" id = "classfaiss_1_1gpu_1_1DeviceScope_html" > < div class = "ttname" > < a href = "classfaiss_1_1gpu_1_1DeviceScope.html" > faiss::gpu::DeviceScope< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "DeviceUtils_8h_source.html#l00055" > DeviceUtils.h:55< / a > < / div > < / div >
< div class = "ttc" id = "classfaiss_1_1gpu_1_1GpuIndexFlat_html_aad665a7b5888b4aafd47ae0f8d0e6c40" > < div class = "ttname" > < a href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#aad665a7b5888b4aafd47ae0f8d0e6c40" > faiss::gpu::GpuIndexFlat::minPagedSize_< / a > < / div > < div class = "ttdeci" > size_t minPagedSize_< / div > < div class = "ttdoc" > Size above which we page copies from the CPU to GPU. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "GpuIndexFlat_8h_source.html#l00119" > GpuIndexFlat.h:119< / a > < / div > < / div >
< div class = "ttc" id = "classfaiss_1_1gpu_1_1GpuIndexFlatIP_html_a5e145b6277778b884508eb351efb1814" > < div class = "ttname" > < a href = "classfaiss_1_1gpu_1_1GpuIndexFlatIP.html#a5e145b6277778b884508eb351efb1814" > faiss::gpu::GpuIndexFlatIP::GpuIndexFlatIP< / a > < / div > < div class = "ttdeci" > GpuIndexFlatIP(GpuResources *resources, int device, bool useFloat16, faiss::IndexFlatIP *index)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "GpuIndexFlat_8cu_source.html#l00516" > GpuIndexFlat.cu:516< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1Index_html_a8e18f641854b2bde83ecff0a2f9a6f4e" > < div class = "ttname" > < a href = "structfaiss_1_1Index.html#a8e18f641854b2bde83ecff0a2f9a6f4e" > faiss::Index::metric_type< / a > < / div > < div class = "ttdeci" > MetricType metric_type< / div > < div class = "ttdoc" > type of metric this index uses for search < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "Index_8h_source.html#l00074" > Index.h:74< / a > < / div > < / div >
< div class = "ttc" id = "classfaiss_1_1gpu_1_1FlatIndex_html_a12058744ffb3fbcbb047872449269c06" > < div class = "ttname" > < a href = "classfaiss_1_1gpu_1_1FlatIndex.html#a12058744ffb3fbcbb047872449269c06" > faiss::gpu::FlatIndex::getVectorsFloat32Ref< / a > < / div > < div class = "ttdeci" > Tensor< float, 2, true > & getVectorsFloat32Ref()< / div > < div class = "ttdoc" > Returns a reference to our vectors currently in use. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "FlatIndex_8cu_source.html#l00061" > FlatIndex.cu:61< / a > < / div > < / div >
< div class = "ttc" id = "classfaiss_1_1gpu_1_1GpuIndexFlat_html" > < div class = "ttname" > < a href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html" > faiss::gpu::GpuIndexFlat< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "GpuIndexFlat_8h_source.html#l00031" > GpuIndexFlat.h:31< / a > < / div > < / div >
< div class = "ttc" id = "classfaiss_1_1gpu_1_1GpuIndexFlat_html_a67161796f274a7171a67c36bdf1ef1db" > < div class = "ttname" > < a href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#a67161796f274a7171a67c36bdf1ef1db" > faiss::gpu::GpuIndexFlat::reset< / a > < / div > < div class = "ttdeci" > void reset() override< / div > < div class = "ttdoc" > Clears all vectors from this index. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "GpuIndexFlat_8cu_source.html#l00135" > GpuIndexFlat.cu:135< / a > < / div > < / div >
< div class = "ttc" id = "classfaiss_1_1gpu_1_1GpuIndexFlatIP_html_aa181b1778a8dca81ac5cf6cd6a3d5f1d" > < div class = "ttname" > < a href = "classfaiss_1_1gpu_1_1GpuIndexFlatIP.html#aa181b1778a8dca81ac5cf6cd6a3d5f1d" > faiss::gpu::GpuIndexFlatIP::copyFrom< / a > < / div > < div class = "ttdeci" > void copyFrom(faiss::IndexFlatIP *index)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "GpuIndexFlat_8cu_source.html#l00532" > GpuIndexFlat.cu:532< / a > < / div > < / div >
< div class = "ttc" id = "classfaiss_1_1gpu_1_1FlatIndex_html_ae06cb2ffd46659b6639b97297546096e" > < div class = "ttname" > < a href = "classfaiss_1_1gpu_1_1FlatIndex.html#ae06cb2ffd46659b6639b97297546096e" > faiss::gpu::FlatIndex::reset< / a > < / div > < div class = "ttdeci" > void reset()< / div > < div class = "ttdoc" > Free all storage. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "FlatIndex_8cu_source.html#l00235" > FlatIndex.cu:235< / a > < / div > < / div >
< div class = "ttc" id = "classfaiss_1_1gpu_1_1CudaEvent_html" > < div class = "ttname" > < a href = "classfaiss_1_1gpu_1_1CudaEvent.html" > faiss::gpu::CudaEvent< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "DeviceUtils_8h_source.html#l00077" > DeviceUtils.h:77< / a > < / div > < / div >
< div class = "ttc" id = "classfaiss_1_1gpu_1_1GpuIndexFlat_html_ac0f0301829363f920e619f673a4d97f3" > < div class = "ttname" > < a href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#ac0f0301829363f920e619f673a4d97f3" > faiss::gpu::GpuIndexFlat::search< / a > < / div > < div class = "ttdeci" > void search(faiss::Index::idx_t n, const float *x, faiss::Index::idx_t k, float *distances, faiss::Index::idx_t *labels) const override< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "GpuIndexFlat_8cu_source.html#l00167" > GpuIndexFlat.cu:167< / a > < / div > < / div >
< div class = "ttc" id = "classfaiss_1_1gpu_1_1DeviceTensor_html" > < div class = "ttname" > < a href = "classfaiss_1_1gpu_1_1DeviceTensor.html" > faiss::gpu::DeviceTensor< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "DeviceTensor_8cuh_source.html#l00024" > DeviceTensor.cuh:24< / 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#l00026" > IndexFlat.h:26< / a > < / div > < / div >
< div class = "ttc" id = "classfaiss_1_1gpu_1_1GpuIndexFlat_html_a0e74fad76628ddfb5ae3dc1d1c69f7e8" > < div class = "ttname" > < a href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#a0e74fad76628ddfb5ae3dc1d1c69f7e8" > faiss::gpu::GpuIndexFlat::train< / a > < / div > < div class = "ttdeci" > void train(Index::idx_t n, const float *x) override< / div > < div class = "ttdoc" > This index is not trained, so this does nothing. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "GpuIndexFlat_8cu_source.html#l00144" > GpuIndexFlat.cu:144< / a > < / div > < / div >
< div class = "ttc" id = "namespacefaiss_html_afd12191c638da74760ff397cf319752c" > < div class = "ttname" > < a href = "namespacefaiss.html#afd12191c638da74760ff397cf319752c" > faiss::MetricType< / a > < / div > < div class = "ttdeci" > MetricType< / div > < div class = "ttdoc" > Some algorithms support both an inner product vetsion and a L2 search version. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "Index_8h_source.html#l00044" > Index.h:44< / a > < / div > < / div >
< div class = "ttc" id = "classfaiss_1_1gpu_1_1GpuIndexFlat_html_ae393840fc80403369452c25c9155e067" > < div class = "ttname" > < a href = "classfaiss_1_1gpu_1_1GpuIndexFlat.html#ae393840fc80403369452c25c9155e067" > faiss::gpu::GpuIndexFlat::data_< / a > < / div > < div class = "ttdeci" > FlatIndex * data_< / div > < div class = "ttdoc" > Holds our GPU data containing the list of vectors. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "GpuIndexFlat_8h_source.html#l00125" > GpuIndexFlat.h:125< / a > < / div > < / div >
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