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<div class="title">PerfIVFPQAdd.cpp</div> </div>
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<div class="contents">
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment"></span></div>
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<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">/**</span></div>
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<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> * Copyright (c) 2015-present, Facebook, Inc.</span></div>
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<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * All rights reserved.</span></div>
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<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> *</span></div>
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<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>
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<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>
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<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> */</span></div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> </div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment">// Copyright 2004-present Facebook. All Rights Reserved.</span></div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> </div>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> </div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#include <cuda_profiler_api.h></span></div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#include "../../IndexFlat.h"</span></div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#include "../../IndexIVFPQ.h"</span></div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#include "../GpuIndexIVFPQ.h"</span></div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#include "../StandardGpuResources.h"</span></div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor">#include "../test/TestUtils.h"</span></div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#include "../utils/DeviceUtils.h"</span></div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#include "../utils/Timer.h"</span></div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#include <gflags/gflags.h></span></div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#include <map></span></div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#include <vector></span></div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> </div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> DEFINE_int32(batches, 10, <span class="stringliteral">"number of batches of vectors to add"</span>);</div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> DEFINE_int32(batch_size, 10000, <span class="stringliteral">"number of vectors in each batch"</span>);</div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> DEFINE_int32(dim, 256, <span class="stringliteral">"dimension of vectors"</span>);</div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> DEFINE_int32(centroids, 4096, <span class="stringliteral">"num coarse centroids to use"</span>);</div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> DEFINE_int32(bytes_per_vec, 32, <span class="stringliteral">"bytes per encoded vector"</span>);</div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> DEFINE_int32(bits_per_code, 8, <span class="stringliteral">"bits per PQ code"</span>);</div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> DEFINE_int32(index, 2, <span class="stringliteral">"0 = no indices on GPU; 1 = 32 bit, 2 = 64 bit on GPU"</span>);</div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> DEFINE_bool(time_gpu, <span class="keyword">true</span>, <span class="stringliteral">"time add to GPU"</span>);</div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> DEFINE_bool(time_cpu, <span class="keyword">false</span>, <span class="stringliteral">"time add to CPU"</span>);</div>
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<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> DEFINE_bool(per_batch_time, <span class="keyword">false</span>, <span class="stringliteral">"print per-batch times"</span>);</div>
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<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> DEFINE_bool(reserve_memory, <span class="keyword">false</span>, <span class="stringliteral">"whether or not to pre-reserve memory"</span>);</div>
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<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> </div>
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<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="keywordtype">int</span> main(<span class="keywordtype">int</span> argc, <span class="keywordtype">char</span>** argv) {</div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  google::ParseCommandLineFlags(&argc, &argv, <span class="keyword">true</span>);</div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> </div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  cudaProfilerStop();</div>
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<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> </div>
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<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <span class="keywordtype">int</span> dim = FLAGS_dim;</div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="keywordtype">int</span> numCentroids = FLAGS_centroids;</div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <span class="keywordtype">int</span> bytesPerVec = FLAGS_bytes_per_vec;</div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="keywordtype">int</span> bitsPerCode = FLAGS_bits_per_code;</div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> </div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <a class="code" href="classfaiss_1_1gpu_1_1StandardGpuResources.html">faiss::gpu::StandardGpuResources</a> res;</div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> </div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="comment">// IndexIVFPQ will complain, but just give us enough to get through this</span></div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="keywordtype">int</span> numTrain = 4 * numCentroids;</div>
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<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  std::vector<float> trainVecs = faiss::gpu::randVecs(numTrain, dim);</div>
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<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> </div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <a class="code" href="structfaiss_1_1IndexFlatL2.html">faiss::IndexFlatL2</a> coarseQuantizer(dim);</div>
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<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <a class="code" href="structfaiss_1_1IndexIVFPQ.html">faiss::IndexIVFPQ</a> cpuIndex(&coarseQuantizer, dim, numCentroids,</div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  bytesPerVec, bitsPerCode);</div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="keywordflow">if</span> (FLAGS_time_cpu) {</div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  cpuIndex.train(numTrain, trainVecs.data());</div>
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<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  }</div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> </div>
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<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html">faiss::gpu::GpuIndexIVFPQ</a> gpuIndex(</div>
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<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  &res, 0,</div>
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<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  dim, numCentroids, bytesPerVec, bitsPerCode,</div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="keyword">false</span>,</div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  (faiss::gpu::IndicesOptions) FLAGS_index,</div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="keyword">false</span>,</div>
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<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  faiss::METRIC_L2);</div>
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<div class="line"><a name="l00067"></a><span class="lineno"> 67</span> </div>
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<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="keywordflow">if</span> (FLAGS_time_gpu) {</div>
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<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  gpuIndex.train(numTrain, trainVecs.data());</div>
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<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="keywordflow">if</span> (FLAGS_reserve_memory) {</div>
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<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="keywordtype">size_t</span> numVecs = (size_t) FLAGS_batches * (<span class="keywordtype">size_t</span>) FLAGS_batch_size;</div>
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<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  gpuIndex.reserveMemory(numVecs);</div>
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<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  }</div>
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<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  }</div>
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<div class="line"><a name="l00075"></a><span class="lineno"> 75</span> </div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  cudaDeviceSynchronize();</div>
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<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  CUDA_VERIFY(cudaProfilerStart());</div>
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<div class="line"><a name="l00078"></a><span class="lineno"> 78</span> </div>
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<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="keywordtype">float</span> totalGpuTime = 0.0f;</div>
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<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="keywordtype">float</span> totalCpuTime = 0.0f;</div>
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<div class="line"><a name="l00081"></a><span class="lineno"> 81</span> </div>
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<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < FLAGS_batches; ++i) {</div>
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<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <span class="keywordflow">if</span> (!FLAGS_per_batch_time) {</div>
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<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="keywordflow">if</span> (i % 10 == 0) {</div>
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<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  printf(<span class="stringliteral">"Adding batch %d\n"</span>, i + 1);</div>
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<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  }</div>
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<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  }</div>
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<div class="line"><a name="l00088"></a><span class="lineno"> 88</span> </div>
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<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <span class="keyword">auto</span> addVecs = faiss::gpu::randVecs(FLAGS_batch_size, dim);</div>
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<div class="line"><a name="l00090"></a><span class="lineno"> 90</span> </div>
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<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <span class="keywordflow">if</span> (FLAGS_time_gpu) {</div>
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<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <a class="code" href="classfaiss_1_1gpu_1_1CpuTimer.html">faiss::gpu::CpuTimer</a> timer;</div>
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<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  gpuIndex.add(FLAGS_batch_size, addVecs.data());</div>
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<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  CUDA_VERIFY(cudaDeviceSynchronize());</div>
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<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <span class="keyword">auto</span> time = timer.<a class="code" href="classfaiss_1_1gpu_1_1CpuTimer.html#a4a2795debf10bc7eb904d62356e41f0d">elapsedMilliseconds</a>();</div>
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<div class="line"><a name="l00096"></a><span class="lineno"> 96</span> </div>
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<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  totalGpuTime += time;</div>
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<div class="line"><a name="l00098"></a><span class="lineno"> 98</span> </div>
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<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <span class="keywordflow">if</span> (FLAGS_per_batch_time) {</div>
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<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  printf(<span class="stringliteral">"Batch %d | GPU time to add %d vecs: %.3f ms (%.5f ms per)\n"</span>,</div>
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<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  i + 1, FLAGS_batch_size, time, time / (<span class="keywordtype">float</span>) FLAGS_batch_size);</div>
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<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  }</div>
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<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  }</div>
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<div class="line"><a name="l00104"></a><span class="lineno"> 104</span> </div>
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<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="keywordflow">if</span> (FLAGS_time_cpu) {</div>
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<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <a class="code" href="classfaiss_1_1gpu_1_1CpuTimer.html">faiss::gpu::CpuTimer</a> timer;</div>
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<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  cpuIndex.add(FLAGS_batch_size, addVecs.data());</div>
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<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="keyword">auto</span> time = timer.<a class="code" href="classfaiss_1_1gpu_1_1CpuTimer.html#a4a2795debf10bc7eb904d62356e41f0d">elapsedMilliseconds</a>();</div>
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<div class="line"><a name="l00109"></a><span class="lineno"> 109</span> </div>
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<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  totalCpuTime += time;</div>
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<div class="line"><a name="l00111"></a><span class="lineno"> 111</span> </div>
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<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <span class="keywordflow">if</span> (FLAGS_per_batch_time) {</div>
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<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  printf(<span class="stringliteral">"Batch %d | CPU time to add %d vecs: %.3f ms (%.5f ms per)\n"</span>,</div>
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<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  i + 1, FLAGS_batch_size, time, time / (<span class="keywordtype">float</span>) FLAGS_batch_size);</div>
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<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  }</div>
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<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  }</div>
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<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  }</div>
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<div class="line"><a name="l00118"></a><span class="lineno"> 118</span> </div>
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<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  CUDA_VERIFY(cudaProfilerStop());</div>
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<div class="line"><a name="l00120"></a><span class="lineno"> 120</span> </div>
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<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="keywordtype">int</span> total = FLAGS_batch_size * FLAGS_batches;</div>
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<div class="line"><a name="l00122"></a><span class="lineno"> 122</span> </div>
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<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <span class="keywordflow">if</span> (FLAGS_time_gpu) {</div>
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<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  printf(<span class="stringliteral">"%d dim, %d centroids, %d x %d encoding\n"</span></div>
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<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <span class="stringliteral">"GPU time to add %d vectors (%d batches, %d per batch): "</span></div>
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<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <span class="stringliteral">"%.3f ms (%.3f us per)\n"</span>,</div>
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<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  dim, numCentroids, bytesPerVec, bitsPerCode,</div>
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<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  total, FLAGS_batches, FLAGS_batch_size,</div>
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<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  totalGpuTime, totalGpuTime * 1000.0f / (<span class="keywordtype">float</span>) total);</div>
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<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  }</div>
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<div class="line"><a name="l00131"></a><span class="lineno"> 131</span> </div>
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<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="keywordflow">if</span> (FLAGS_time_cpu) {</div>
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<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  printf(<span class="stringliteral">"%d dim, %d centroids, %d x %d encoding\n"</span></div>
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<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <span class="stringliteral">"CPU time to add %d vectors (%d batches, %d per batch): "</span></div>
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<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="stringliteral">"%.3f ms (%.3f us per)\n"</span>,</div>
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<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  dim, numCentroids, bytesPerVec, bitsPerCode,</div>
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<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  total, FLAGS_batches, FLAGS_batch_size,</div>
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<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  totalCpuTime, totalCpuTime * 1000.0f / (<span class="keywordtype">float</span>) total);</div>
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<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  }</div>
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<div class="line"><a name="l00140"></a><span class="lineno"> 140</span> </div>
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<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <span class="keywordflow">return</span> 0;</div>
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<div class="line"><a name="l00142"></a><span class="lineno"> 142</span> }</div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1CpuTimer_html_a4a2795debf10bc7eb904d62356e41f0d"><div class="ttname"><a href="classfaiss_1_1gpu_1_1CpuTimer.html#a4a2795debf10bc7eb904d62356e41f0d">faiss::gpu::CpuTimer::elapsedMilliseconds</a></div><div class="ttdeci">float elapsedMilliseconds()</div><div class="ttdoc">Returns elapsed time in milliseconds. </div><div class="ttdef"><b>Definition:</b> <a href="Timer_8cpp_source.html#l00053">Timer.cpp:53</a></div></div>
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<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>
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<div class="ttc" id="classfaiss_1_1gpu_1_1CpuTimer_html"><div class="ttname"><a href="classfaiss_1_1gpu_1_1CpuTimer.html">faiss::gpu::CpuTimer</a></div><div class="ttdoc">CPU wallclock elapsed timer. </div><div class="ttdef"><b>Definition:</b> <a href="Timer_8h_source.html#l00043">Timer.h:43</a></div></div>
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<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>
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<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>
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<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>
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