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<li class="navelem"><a class="el" href="dir_6b3ae6988449b0834e9596fad5d75199.html">gpu</a></li><li class="navelem"><a class="el" href="dir_43be364029218a94c5bcb5d8c78d7156.html">test</a></li> </ul>
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<div class="title">TestGpuIndexIVFPQ.cpp</div> </div>
</div><!--header-->
<div class="contents">
<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 "../../IndexFlat.h"</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#include "../../IndexIVFPQ.h"</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#include "../GpuIndexIVFPQ.h"</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#include "../StandardGpuResources.h"</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#include "../utils/DeviceUtils.h"</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#include "../test/TestUtils.h"</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor">#include <cmath></span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#include <gtest/gtest.h></span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#include <sstream></span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#include <vector></span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</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="keywordtype">void</span> pickEncoding(<span class="keywordtype">int</span>& codes, <span class="keywordtype">int</span>& dim) {</div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  std::vector<int> codeSizes{</div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  3, 4, 8, 12, 16, 20, 24,</div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  28, 32, 40, 48, 56, 64, 96</div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  };</div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> </div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  std::vector<int> dimSizes{4, 8, 16, 32};</div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> </div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  codes = codeSizes[faiss::gpu::randVal(0, codeSizes.size() - 1)];</div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> </div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  <span class="keywordflow">while</span> (<span class="keyword">true</span>) {</div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  dim = codes * dimSizes[faiss::gpu::randVal(0, dimSizes.size() - 1)];</div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> </div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  <span class="comment">// for such a small test, super-low or high dim is more likely to</span></div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <span class="comment">// generate comparison errors</span></div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="keywordflow">if</span> (dim < 512 && dim >= 64) {</div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  }</div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  }</div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> }</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> </div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="keyword">struct </span><a class="code" href="structOptions.html">Options</a> {</div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <a class="code" href="structOptions.html">Options</a>() {</div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  numAdd = faiss::gpu::randVal(10000, 30000);</div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  numCentroids = std::sqrt((<span class="keywordtype">float</span>) numAdd);</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  numTrain = numCentroids * 40;</div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> </div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  pickEncoding(codes, dim);</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> </div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  bitsPerCode = faiss::gpu::randVal(3, 8);</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  nprobe = std::min(faiss::gpu::randVal(40, 1000), numCentroids);</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  numQuery = faiss::gpu::randVal(32, 256);</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  k = std::min(faiss::gpu::randVal(10, 50), numAdd / 40);</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  usePrecomputed = faiss::gpu::randBool();</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  indicesOpt = faiss::gpu::randSelect({</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  faiss::gpu::INDICES_CPU,</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  faiss::gpu::INDICES_32_BIT,</div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  faiss::gpu::INDICES_64_BIT});</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="keywordflow">if</span> (codes > 48) {</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="comment">// large codes can only fit using float16</span></div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  useFloat16 = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  useFloat16 = faiss::gpu::randBool();</div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  }</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span> </div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  device = faiss::gpu::randVal(0, faiss::gpu::getNumDevices() - 1);</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  }</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span> </div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  std::string toString()<span class="keyword"> const </span>{</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  std::stringstream str;</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  str << <span class="stringliteral">"IVFPQ device "</span> << device</div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  << <span class="stringliteral">" numVecs "</span> << numAdd</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  << <span class="stringliteral">" dim "</span> << dim</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  << <span class="stringliteral">" numCentroids "</span> << numCentroids</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  << <span class="stringliteral">" codes "</span> << codes</div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  << <span class="stringliteral">" bitsPerCode "</span> << bitsPerCode</div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  << <span class="stringliteral">" nprobe "</span> << nprobe</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  << <span class="stringliteral">" numQuery "</span> << numQuery</div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  << <span class="stringliteral">" k "</span> << k</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  << <span class="stringliteral">" usePrecomputed "</span> << usePrecomputed</div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  << <span class="stringliteral">" indicesOpt "</span> << indicesOpt</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  << <span class="stringliteral">" useFloat16 "</span> << useFloat16;</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="keywordflow">return</span> str.str();</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  }</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span> </div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="keywordtype">float</span> getCompareEpsilon()<span class="keyword"> const </span>{</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <span class="keywordflow">return</span> 0.015f;</div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  }</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span> </div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="keywordtype">float</span> getPctMaxDiff1()<span class="keyword"> const </span>{</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <span class="keywordflow">return</span> useFloat16 ? 0.30f : 0.10f;</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  }</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span> </div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <span class="keywordtype">float</span> getPctMaxDiffN()<span class="keyword"> const </span>{</div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <span class="keywordflow">return</span> useFloat16 ? 0.05f : 0.015f;</div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  }</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span> </div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="keywordtype">int</span> numAdd;</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <span class="keywordtype">int</span> numCentroids;</div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="keywordtype">int</span> numTrain;</div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="keywordtype">int</span> codes;</div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="keywordtype">int</span> dim;</div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="keywordtype">int</span> bitsPerCode;</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="keywordtype">int</span> nprobe;</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <span class="keywordtype">int</span> numQuery;</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <span class="keywordtype">int</span> k;</div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keywordtype">bool</span> usePrecomputed;</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  faiss::gpu::IndicesOptions indicesOpt;</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <span class="keywordtype">bool</span> useFloat16;</div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <span class="keywordtype">int</span> device;</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span> };</div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span> </div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span> TEST(TestGpuIndexIVFPQ, Query) {</div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> tries = 0; tries < 5; ++tries) {</div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  faiss::gpu::newTestSeed();</div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span> </div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <a class="code" href="structOptions.html">Options</a> opt;</div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span> </div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  std::vector<float> trainVecs = faiss::gpu::randVecs(opt.numTrain, opt.dim);</div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  std::vector<float> addVecs = faiss::gpu::randVecs(opt.numAdd, opt.dim);</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>  <a class="code" href="structfaiss_1_1IndexFlatL2.html">faiss::IndexFlatL2</a> coarseQuantizer(opt.dim);</div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <a class="code" href="structfaiss_1_1IndexIVFPQ.html">faiss::IndexIVFPQ</a> cpuIndex(&coarseQuantizer, opt.dim, opt.numCentroids,</div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  opt.codes, opt.bitsPerCode);</div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  cpuIndex.nprobe = opt.nprobe;</div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  cpuIndex.train(opt.numTrain, trainVecs.data());</div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  cpuIndex.add(opt.numAdd, addVecs.data());</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>  <a class="code" href="classfaiss_1_1gpu_1_1StandardGpuResources.html">faiss::gpu::StandardGpuResources</a> res;</div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  res.<a class="code" href="classfaiss_1_1gpu_1_1StandardGpuResources.html#a6431477a7328ac147797b3b4e3fcf651">noTempMemory</a>();</div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span> </div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html">faiss::gpu::GpuIndexIVFPQ</a> gpuIndex(&res, opt.device,</div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  opt.indicesOpt,</div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  opt.useFloat16,</div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  &cpuIndex);</div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  gpuIndex.setPrecomputedCodes(opt.usePrecomputed);</div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  gpuIndex.setNumProbes(opt.nprobe);</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>  faiss::gpu::compareIndices(cpuIndex, gpuIndex,</div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  opt.numQuery, opt.dim, opt.k, opt.toString(),</div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  opt.getCompareEpsilon(),</div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  opt.getPctMaxDiff1(),</div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  opt.getPctMaxDiffN());</div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  }</div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span> }</div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span> </div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span> TEST(TestGpuIndexIVFPQ, Add) {</div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> tries = 0; tries < 5; ++tries) {</div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  faiss::gpu::newTestSeed();</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>  <a class="code" href="structOptions.html">Options</a> opt;</div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span> </div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  std::vector<float> trainVecs = faiss::gpu::randVecs(opt.numTrain, opt.dim);</div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  std::vector<float> addVecs = faiss::gpu::randVecs(opt.numAdd, opt.dim);</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>  <a class="code" href="structfaiss_1_1IndexFlatL2.html">faiss::IndexFlatL2</a> coarseQuantizer(opt.dim);</div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <a class="code" href="structfaiss_1_1IndexIVFPQ.html">faiss::IndexIVFPQ</a> cpuIndex(&coarseQuantizer, opt.dim, opt.numCentroids,</div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  opt.codes, opt.bitsPerCode);</div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  cpuIndex.nprobe = opt.nprobe;</div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  cpuIndex.train(opt.numTrain, trainVecs.data());</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>  <a class="code" href="classfaiss_1_1gpu_1_1StandardGpuResources.html">faiss::gpu::StandardGpuResources</a> res;</div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  res.<a class="code" href="classfaiss_1_1gpu_1_1StandardGpuResources.html#a6431477a7328ac147797b3b4e3fcf651">noTempMemory</a>();</div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span> </div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html">faiss::gpu::GpuIndexIVFPQ</a> gpuIndex(&res, opt.device,</div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  opt.indicesOpt,</div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  opt.useFloat16,</div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  &cpuIndex);</div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  gpuIndex.setPrecomputedCodes(opt.usePrecomputed);</div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  gpuIndex.setNumProbes(opt.nprobe);</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>  gpuIndex.add(opt.numAdd, addVecs.data());</div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  cpuIndex.add(opt.numAdd, addVecs.data());</div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span> </div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  faiss::gpu::compareIndices(cpuIndex, gpuIndex,</div>
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  opt.numQuery, opt.dim, opt.k, opt.toString(),</div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  opt.getCompareEpsilon(),</div>
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  opt.getPctMaxDiff1(),</div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  opt.getPctMaxDiffN());</div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  }</div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span> }</div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span> </div>
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span> TEST(TestGpuIndexIVFPQ, CopyTo) {</div>
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  faiss::gpu::newTestSeed();</div>
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span> </div>
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  <a class="code" href="structOptions.html">Options</a> opt;</div>
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  std::vector<float> trainVecs = faiss::gpu::randVecs(opt.numTrain, opt.dim);</div>
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  std::vector<float> addVecs = faiss::gpu::randVecs(opt.numAdd, opt.dim);</div>
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span> </div>
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  <a class="code" href="classfaiss_1_1gpu_1_1StandardGpuResources.html">faiss::gpu::StandardGpuResources</a> res;</div>
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  res.<a class="code" href="classfaiss_1_1gpu_1_1StandardGpuResources.html#a6431477a7328ac147797b3b4e3fcf651">noTempMemory</a>();</div>
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span> </div>
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html">faiss::gpu::GpuIndexIVFPQ</a> gpuIndex(&res, opt.device,</div>
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  opt.dim,</div>
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  opt.numCentroids,</div>
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  opt.codes,</div>
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  opt.bitsPerCode,</div>
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  opt.usePrecomputed,</div>
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  opt.indicesOpt,</div>
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  opt.useFloat16,</div>
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  faiss::METRIC_L2);</div>
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  gpuIndex.setNumProbes(opt.nprobe);</div>
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  gpuIndex.train(opt.numTrain, trainVecs.data());</div>
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  gpuIndex.add(opt.numAdd, addVecs.data());</div>
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span> </div>
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  <span class="comment">// Use garbage values to see if we overwrite them</span></div>
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  <a class="code" href="structfaiss_1_1IndexFlatL2.html">faiss::IndexFlatL2</a> cpuQuantizer(1);</div>
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  <a class="code" href="structfaiss_1_1IndexIVFPQ.html">faiss::IndexIVFPQ</a> cpuIndex(&cpuQuantizer, 1, 1, 1, 1);</div>
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span> </div>
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  gpuIndex.copyTo(&cpuIndex);</div>
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span> </div>
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  EXPECT_EQ(cpuIndex.ntotal, gpuIndex.ntotal);</div>
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  EXPECT_EQ(gpuIndex.ntotal, opt.numAdd);</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>  EXPECT_EQ(cpuIndex.d, gpuIndex.d);</div>
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  EXPECT_EQ(cpuIndex.d, opt.dim);</div>
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  EXPECT_EQ(cpuIndex.nlist, gpuIndex.getNumLists());</div>
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  EXPECT_EQ(cpuIndex.nprobe, gpuIndex.getNumProbes());</div>
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  EXPECT_EQ(cpuIndex.pq.M, gpuIndex.getNumSubQuantizers());</div>
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  EXPECT_EQ(gpuIndex.getNumSubQuantizers(), opt.codes);</div>
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  EXPECT_EQ(cpuIndex.pq.nbits, gpuIndex.getBitsPerCode());</div>
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  EXPECT_EQ(gpuIndex.getBitsPerCode(), opt.bitsPerCode);</div>
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span> </div>
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  <span class="comment">// Query both objects; results should be equivalent</span></div>
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  faiss::gpu::compareIndices(cpuIndex, gpuIndex,</div>
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  opt.numQuery, opt.dim, opt.k, opt.toString(),</div>
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  opt.getCompareEpsilon(),</div>
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  opt.getPctMaxDiff1(),</div>
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  opt.getPctMaxDiffN());</div>
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span> }</div>
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span> </div>
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span> TEST(TestGpuIndexIVFPQ, CopyFrom) {</div>
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  faiss::gpu::newTestSeed();</div>
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span> </div>
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  <a class="code" href="structOptions.html">Options</a> opt;</div>
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  std::vector<float> trainVecs = faiss::gpu::randVecs(opt.numTrain, opt.dim);</div>
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  std::vector<float> addVecs = faiss::gpu::randVecs(opt.numAdd, opt.dim);</div>
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span> </div>
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  <a class="code" href="structfaiss_1_1IndexFlatL2.html">faiss::IndexFlatL2</a> coarseQuantizer(opt.dim);</div>
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  <a class="code" href="structfaiss_1_1IndexIVFPQ.html">faiss::IndexIVFPQ</a> cpuIndex(&coarseQuantizer, opt.dim, opt.numCentroids,</div>
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  opt.codes, opt.bitsPerCode);</div>
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  cpuIndex.nprobe = opt.nprobe;</div>
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  cpuIndex.train(opt.numTrain, trainVecs.data());</div>
<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  cpuIndex.add(opt.numAdd, addVecs.data());</div>
<div class="line"><a name="l00249"></a><span class="lineno"> 249</span> </div>
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  <span class="comment">// Use garbage values to see if we overwrite them</span></div>
<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  <a class="code" href="classfaiss_1_1gpu_1_1StandardGpuResources.html">faiss::gpu::StandardGpuResources</a> res;</div>
<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  res.<a class="code" href="classfaiss_1_1gpu_1_1StandardGpuResources.html#a6431477a7328ac147797b3b4e3fcf651">noTempMemory</a>();</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>  <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html">faiss::gpu::GpuIndexIVFPQ</a> gpuIndex(&res, opt.device,</div>
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  1, 1, 1, 1, <span class="keyword">false</span>, opt.indicesOpt,</div>
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  opt.useFloat16, faiss::METRIC_L2);</div>
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  gpuIndex.setNumProbes(1);</div>
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span> </div>
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  gpuIndex.copyFrom(&cpuIndex);</div>
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span> </div>
<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  <span class="comment">// Make sure we are equivalent</span></div>
<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  EXPECT_EQ(cpuIndex.ntotal, gpuIndex.ntotal);</div>
<div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  EXPECT_EQ(gpuIndex.ntotal, opt.numAdd);</div>
<div class="line"><a name="l00264"></a><span class="lineno"> 264</span> </div>
<div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  EXPECT_EQ(cpuIndex.d, gpuIndex.d);</div>
<div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  EXPECT_EQ(cpuIndex.d, opt.dim);</div>
<div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  EXPECT_EQ(cpuIndex.nlist, gpuIndex.getNumLists());</div>
<div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  EXPECT_EQ(cpuIndex.nprobe, gpuIndex.getNumProbes());</div>
<div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  EXPECT_EQ(cpuIndex.pq.M, gpuIndex.getNumSubQuantizers());</div>
<div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  EXPECT_EQ(gpuIndex.getNumSubQuantizers(), opt.codes);</div>
<div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  EXPECT_EQ(cpuIndex.pq.nbits, gpuIndex.getBitsPerCode());</div>
<div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  EXPECT_EQ(gpuIndex.getBitsPerCode(), opt.bitsPerCode);</div>
<div class="line"><a name="l00273"></a><span class="lineno"> 273</span> </div>
<div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  <span class="comment">// Query both objects; results should be equivalent</span></div>
<div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  faiss::gpu::compareIndices(cpuIndex, gpuIndex,</div>
<div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  opt.numQuery, opt.dim, opt.k, opt.toString(),</div>
<div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  opt.getCompareEpsilon(),</div>
<div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  opt.getPctMaxDiff1(),</div>
<div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  opt.getPctMaxDiffN());</div>
<div class="line"><a name="l00280"></a><span class="lineno"> 280</span> }</div>
<div class="line"><a name="l00281"></a><span class="lineno"> 281</span> </div>
<div class="line"><a name="l00282"></a><span class="lineno"> 282</span> TEST(TestGpuIndexIVFPQ, QueryNaN) {</div>
<div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  faiss::gpu::newTestSeed();</div>
<div class="line"><a name="l00284"></a><span class="lineno"> 284</span> </div>
<div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  <a class="code" href="structOptions.html">Options</a> opt;</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>  std::vector<float> trainVecs = faiss::gpu::randVecs(opt.numTrain, opt.dim);</div>
<div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  std::vector<float> addVecs = faiss::gpu::randVecs(opt.numAdd, opt.dim);</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>  <a class="code" href="classfaiss_1_1gpu_1_1StandardGpuResources.html">faiss::gpu::StandardGpuResources</a> res;</div>
<div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  res.<a class="code" href="classfaiss_1_1gpu_1_1StandardGpuResources.html#a6431477a7328ac147797b3b4e3fcf651">noTempMemory</a>();</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>  <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html">faiss::gpu::GpuIndexIVFPQ</a> gpuIndex(&res, opt.device,</div>
<div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  opt.dim,</div>
<div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  opt.numCentroids,</div>
<div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  opt.codes,</div>
<div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  opt.bitsPerCode,</div>
<div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  opt.usePrecomputed,</div>
<div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  opt.indicesOpt,</div>
<div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  opt.useFloat16,</div>
<div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  faiss::METRIC_L2);</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>  gpuIndex.setPrecomputedCodes(opt.usePrecomputed);</div>
<div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  gpuIndex.setNumProbes(opt.nprobe);</div>
<div class="line"><a name="l00305"></a><span class="lineno"> 305</span> </div>
<div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  gpuIndex.train(opt.numTrain, trainVecs.data());</div>
<div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  gpuIndex.add(opt.numAdd, addVecs.data());</div>
<div class="line"><a name="l00308"></a><span class="lineno"> 308</span> </div>
<div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  <span class="keywordtype">int</span> numQuery = 10;</div>
<div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  std::vector<float> nans(numQuery * opt.dim,</div>
<div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  std::numeric_limits<float>::quiet_NaN());</div>
<div class="line"><a name="l00312"></a><span class="lineno"> 312</span> </div>
<div class="line"><a name="l00313"></a><span class="lineno"> 313</span>  std::vector<float> distances(numQuery * opt.k, 0);</div>
<div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  std::vector<faiss::Index::idx_t> indices(numQuery * opt.k, 0);</div>
<div class="line"><a name="l00315"></a><span class="lineno"> 315</span> </div>
<div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  gpuIndex.search(numQuery,</div>
<div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  nans.data(),</div>
<div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  opt.k,</div>
<div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  distances.data(),</div>
<div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  indices.data());</div>
<div class="line"><a name="l00321"></a><span class="lineno"> 321</span> </div>
<div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> q = 0; q < numQuery; ++q) {</div>
<div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> k = 0; k < opt.k; ++k) {</div>
<div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  EXPECT_EQ(indices[q * opt.k + k], -1);</div>
<div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  EXPECT_EQ(distances[q * opt.k + k], std::numeric_limits<float>::max());</div>
<div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  }</div>
<div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  }</div>
<div class="line"><a name="l00328"></a><span class="lineno"> 328</span> }</div>
<div class="line"><a name="l00329"></a><span class="lineno"> 329</span> </div>
<div class="line"><a name="l00330"></a><span class="lineno"> 330</span> TEST(TestGpuIndexIVFPQ, AddNaN) {</div>
<div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  faiss::gpu::newTestSeed();</div>
<div class="line"><a name="l00332"></a><span class="lineno"> 332</span> </div>
<div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  <a class="code" href="structOptions.html">Options</a> opt;</div>
<div class="line"><a name="l00334"></a><span class="lineno"> 334</span> </div>
<div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  <a class="code" href="classfaiss_1_1gpu_1_1StandardGpuResources.html">faiss::gpu::StandardGpuResources</a> res;</div>
<div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  res.<a class="code" href="classfaiss_1_1gpu_1_1StandardGpuResources.html#a6431477a7328ac147797b3b4e3fcf651">noTempMemory</a>();</div>
<div class="line"><a name="l00337"></a><span class="lineno"> 337</span> </div>
<div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html">faiss::gpu::GpuIndexIVFPQ</a> gpuIndex(&res, opt.device,</div>
<div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  opt.dim,</div>
<div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  opt.numCentroids,</div>
<div class="line"><a name="l00341"></a><span class="lineno"> 341</span>  opt.codes,</div>
<div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  opt.bitsPerCode,</div>
<div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  opt.usePrecomputed,</div>
<div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  opt.indicesOpt,</div>
<div class="line"><a name="l00345"></a><span class="lineno"> 345</span>  opt.useFloat16,</div>
<div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  faiss::METRIC_L2);</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>  gpuIndex.setPrecomputedCodes(opt.usePrecomputed);</div>
<div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  gpuIndex.setNumProbes(opt.nprobe);</div>
<div class="line"><a name="l00350"></a><span class="lineno"> 350</span> </div>
<div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  <span class="keywordtype">int</span> numNans = 10;</div>
<div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  std::vector<float> nans(numNans * opt.dim,</div>
<div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  std::numeric_limits<float>::quiet_NaN());</div>
<div class="line"><a name="l00354"></a><span class="lineno"> 354</span> </div>
<div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  <span class="comment">// Make one vector valid, which should actually add</span></div>
<div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < opt.dim; ++i) {</div>
<div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  nans[i] = 0.0f;</div>
<div class="line"><a name="l00358"></a><span class="lineno"> 358</span>  }</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>  std::vector<float> trainVecs = faiss::gpu::randVecs(opt.numTrain, opt.dim);</div>
<div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  gpuIndex.train(opt.numTrain, trainVecs.data());</div>
<div class="line"><a name="l00362"></a><span class="lineno"> 362</span> </div>
<div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  <span class="comment">// should not crash</span></div>
<div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  EXPECT_EQ(gpuIndex.ntotal, 0);</div>
<div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  gpuIndex.add(numNans, nans.data());</div>
<div class="line"><a name="l00366"></a><span class="lineno"> 366</span> </div>
<div class="line"><a name="l00367"></a><span class="lineno"> 367</span>  <span class="comment">// Only the single valid vector should have added</span></div>
<div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  EXPECT_EQ(gpuIndex.ntotal, 1);</div>
<div class="line"><a name="l00369"></a><span class="lineno"> 369</span> </div>
<div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  std::vector<float> queryVecs = faiss::gpu::randVecs(opt.numQuery, opt.dim);</div>
<div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  std::vector<float> distance(opt.numQuery * opt.k, 0);</div>
<div class="line"><a name="l00372"></a><span class="lineno"> 372</span>  std::vector<faiss::Index::idx_t> indices(opt.numQuery * opt.k, 0);</div>
<div class="line"><a name="l00373"></a><span class="lineno"> 373</span> </div>
<div class="line"><a name="l00374"></a><span class="lineno"> 374</span>  <span class="comment">// should not crash</span></div>
<div class="line"><a name="l00375"></a><span class="lineno"> 375</span>  gpuIndex.search(opt.numQuery, queryVecs.data(), opt.k,</div>
<div class="line"><a name="l00376"></a><span class="lineno"> 376</span>  distance.data(), indices.data());</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> }</div>
<div class="ttc" id="classfaiss_1_1gpu_1_1StandardGpuResources_html_a6431477a7328ac147797b3b4e3fcf651"><div class="ttname"><a href="classfaiss_1_1gpu_1_1StandardGpuResources.html#a6431477a7328ac147797b3b4e3fcf651">faiss::gpu::StandardGpuResources::noTempMemory</a></div><div class="ttdeci">void noTempMemory()</div><div class="ttdef"><b>Definition:</b> <a href="StandardGpuResources_8cpp_source.html#l00072">StandardGpuResources.cpp:72</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="structfaiss_1_1IndexIVFPQ_html"><div class="ttname"><a href="structfaiss_1_1IndexIVFPQ.html">faiss::IndexIVFPQ</a></div><div class="ttdef"><b>Definition:</b> <a href="IndexIVFPQ_8h_source.html#l00030">IndexIVFPQ.h:30</a></div></div>
<div class="ttc" id="classfaiss_1_1gpu_1_1StandardGpuResources_html"><div class="ttname"><a href="classfaiss_1_1gpu_1_1StandardGpuResources.html">faiss::gpu::StandardGpuResources</a></div><div class="ttdef"><b>Definition:</b> <a href="StandardGpuResources_8h_source.html#l00024">StandardGpuResources.h:24</a></div></div>
<div class="ttc" id="classfaiss_1_1gpu_1_1GpuIndexIVFPQ_html"><div class="ttname"><a href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html">faiss::gpu::GpuIndexIVFPQ</a></div><div class="ttdoc">IVFPQ index for the GPU. </div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexIVFPQ_8h_source.html#l00025">GpuIndexIVFPQ.h:25</a></div></div>
<div class="ttc" id="structOptions_html"><div class="ttname"><a href="structOptions.html">Options</a></div><div class="ttdef"><b>Definition:</b> <a href="TestGpuIndexIVFFlat_8cpp_source.html#l00027">TestGpuIndexIVFFlat.cpp:27</a></div></div>
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