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0df3f646fc
various bugfixes from github issues kmean with some frozen centroids GPU better tiling for large flat datasets default AVX for vector ops
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655 lines
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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">GpuIndexIVFPQ.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>
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<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * Copyright (c) 2015-present, Facebook, Inc.</span></div>
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<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> * All rights reserved.</span></div>
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<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> *</span></div>
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<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * This source code is licensed under the BSD+Patents license found in the</span></div>
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<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * LICENSE file in the root directory of this source tree.</span></div>
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<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> */</span></div>
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<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> </div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">// Copyright 2004-present Facebook. All Rights Reserved.</span></div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> </div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor">#include "GpuIndexIVFPQ.h"</span></div>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#include "../IndexFlat.h"</span></div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#include "../IndexIVFPQ.h"</span></div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#include "../ProductQuantizer.h"</span></div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#include "GpuIndexFlat.h"</span></div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#include "GpuResources.h"</span></div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#include "impl/IVFPQ.cuh"</span></div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor">#include "utils/CopyUtils.cuh"</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> </div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#include <limits></span></div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> </div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="keyword">namespace </span>faiss { <span class="keyword">namespace </span>gpu {</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"><a class="line" href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#a56a552e8c2e29f33c39883145bd7629c"> 25</a></span> <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#a56a552e8c2e29f33c39883145bd7629c">GpuIndexIVFPQ::GpuIndexIVFPQ</a>(<a class="code" href="classfaiss_1_1gpu_1_1GpuResources.html">GpuResources</a>* resources,</div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  <span class="keyword">const</span> <a class="code" href="structfaiss_1_1IndexIVFPQ.html">faiss::IndexIVFPQ</a>* index,</div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  <a class="code" href="structfaiss_1_1gpu_1_1GpuIndexIVFPQConfig.html">GpuIndexIVFPQConfig</a> config) :</div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVF.html">GpuIndexIVF</a>(resources,</div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  index->d,</div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  index->metric_type,</div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  index->nlist,</div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  config),</div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  ivfpqConfig_(config),</div>
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<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  subQuantizers_(0),</div>
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<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  bitsPerCode_(0),</div>
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<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  reserveMemoryVecs_(0),</div>
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<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  index_(nullptr) {</div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="preprocessor">#ifndef FAISS_USE_FLOAT16</span></div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="preprocessor"></span> FAISS_ASSERT(!ivfpqConfig_.<a class="code" href="structfaiss_1_1gpu_1_1GpuIndexIVFPQConfig.html#a9dbbec78d77d90b7b150f543e477cc49">useFloat16LookupTables</a>);</div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="preprocessor">#endif</span></div>
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<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="preprocessor"></span></div>
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<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#a8d48f79af9080b55706050244fc24f0e">copyFrom</a>(index);</div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> }</div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> </div>
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<div class="line"><a name="l00045"></a><span class="lineno"><a class="line" href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#a245ae251f48cb435c7db18258c627b0a"> 45</a></span> <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#a56a552e8c2e29f33c39883145bd7629c">GpuIndexIVFPQ::GpuIndexIVFPQ</a>(<a class="code" href="classfaiss_1_1gpu_1_1GpuResources.html">GpuResources</a>* resources,</div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="keywordtype">int</span> dims,</div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keywordtype">int</span> nlist,</div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="keywordtype">int</span> subQuantizers,</div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keywordtype">int</span> bitsPerCode,</div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <a class="code" href="namespacefaiss.html#afd12191c638da74760ff397cf319752c">faiss::MetricType</a> metric,</div>
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<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <a class="code" href="structfaiss_1_1gpu_1_1GpuIndexIVFPQConfig.html">GpuIndexIVFPQConfig</a> config) :</div>
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<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVF.html">GpuIndexIVF</a>(resources,</div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  dims,</div>
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<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  metric,</div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  nlist,</div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  config),</div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  ivfpqConfig_(config),</div>
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<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  subQuantizers_(subQuantizers),</div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  bitsPerCode_(bitsPerCode),</div>
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<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  reserveMemoryVecs_(0),</div>
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<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  index_(nullptr) {</div>
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<div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="preprocessor">#ifndef FAISS_USE_FLOAT16</span></div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="preprocessor"></span> FAISS_ASSERT(!useFloat16LookupTables_);</div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="preprocessor">#endif</span></div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="preprocessor"></span></div>
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<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  verifySettings_();</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="comment">// FIXME make IP work fully</span></div>
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<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  FAISS_ASSERT(this-><a class="code" href="structfaiss_1_1Index.html#a8e18f641854b2bde83ecff0a2f9a6f4e">metric_type</a> == faiss::METRIC_L2);</div>
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<div class="line"><a name="l00070"></a><span class="lineno"> 70</span> </div>
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<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="comment">// We haven't trained ourselves, so don't construct the PQ index yet</span></div>
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<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  this-><a class="code" href="structfaiss_1_1Index.html#a6e92732617c4dbe364e7678dd8773a7f">is_trained</a> = <span class="keyword">false</span>;</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> GpuIndexIVFPQ::~GpuIndexIVFPQ() {</div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="keyword">delete</span> index_;</div>
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<div class="line"><a name="l00077"></a><span class="lineno"> 77</span> }</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">void</span></div>
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<div class="line"><a name="l00080"></a><span class="lineno"><a class="line" href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#a8d48f79af9080b55706050244fc24f0e"> 80</a></span> <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#a8d48f79af9080b55706050244fc24f0e">GpuIndexIVFPQ::copyFrom</a>(<span class="keyword">const</span> <a class="code" href="structfaiss_1_1IndexIVFPQ.html">faiss::IndexIVFPQ</a>* index) {</div>
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<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <a class="code" href="classfaiss_1_1gpu_1_1DeviceScope.html">DeviceScope</a> scope(<a class="code" href="classfaiss_1_1gpu_1_1GpuIndex.html#a67750633faa35677ee505a1e61cfe142">device_</a>);</div>
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<div class="line"><a name="l00082"></a><span class="lineno"> 82</span> </div>
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<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <span class="comment">// FIXME: support this</span></div>
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<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  FAISS_THROW_IF_NOT_MSG(index-><a class="code" href="structfaiss_1_1Index.html#a8e18f641854b2bde83ecff0a2f9a6f4e">metric_type</a> == faiss::METRIC_L2,</div>
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<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="stringliteral">"inner product unsupported"</span>);</div>
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<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVF.html#a94c2c171f9a2d27085dea9101067bdf2">GpuIndexIVF::copyFrom</a>(index);</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>  <span class="comment">// Clear out our old data</span></div>
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<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <span class="keyword">delete</span> index_;</div>
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<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  index_ = <span class="keyword">nullptr</span>;</div>
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<div class="line"><a name="l00091"></a><span class="lineno"> 91</span> </div>
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<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  subQuantizers_ = index-><a class="code" href="structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16">pq</a>.<a class="code" href="structfaiss_1_1ProductQuantizer.html#a83600e328893ce5f41fe459f5a3acf41">M</a>;</div>
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<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  bitsPerCode_ = index-><a class="code" href="structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16">pq</a>.<a class="code" href="structfaiss_1_1ProductQuantizer.html#ac920fea11f02e8407d12cc99a09f5ea5">nbits</a>;</div>
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<div class="line"><a name="l00094"></a><span class="lineno"> 94</span> </div>
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<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <span class="comment">// We only support this</span></div>
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<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  FAISS_ASSERT(index-><a class="code" href="structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16">pq</a>.<a class="code" href="structfaiss_1_1ProductQuantizer.html#a13bf69a0dc7b4e45792d10f458e4a92d">byte_per_idx</a> == 1);</div>
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<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  FAISS_ASSERT(index-><a class="code" href="structfaiss_1_1IndexIVFPQ.html#afd13b471df293ae5a6e895704c69a4c3">by_residual</a>);</div>
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<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  FAISS_ASSERT(index-><a class="code" href="structfaiss_1_1IndexIVFPQ.html#a3093a0a3e128eafce6e0583b75e9662e">polysemous_ht</a> == 0);</div>
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<div class="line"><a name="l00099"></a><span class="lineno"> 99</span> </div>
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<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  verifySettings_();</div>
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<div class="line"><a name="l00101"></a><span class="lineno"> 101</span> </div>
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<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="comment">// The other index might not be trained</span></div>
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<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <span class="keywordflow">if</span> (!index-><a class="code" href="structfaiss_1_1Index.html#a6e92732617c4dbe364e7678dd8773a7f">is_trained</a>) {</div>
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<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="keywordflow">return</span>;</div>
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<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  }</div>
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<div class="line"><a name="l00106"></a><span class="lineno"> 106</span> </div>
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<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="comment">// Otherwise, we can populate ourselves from the other index</span></div>
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<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  this-><a class="code" href="structfaiss_1_1Index.html#a6e92732617c4dbe364e7678dd8773a7f">is_trained</a> = <span class="keyword">true</span>;</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>  <span class="comment">// Copy our lists as well</span></div>
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<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="comment">// The product quantizer must have data in it</span></div>
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<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  FAISS_ASSERT(index-><a class="code" href="structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16">pq</a>.<a class="code" href="structfaiss_1_1ProductQuantizer.html#aab1109a29ba0544358e274d727b23cae">centroids</a>.size() > 0);</div>
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<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  index_ = <span class="keyword">new</span> <a class="code" href="classfaiss_1_1gpu_1_1IVFPQ.html">IVFPQ</a>(<a class="code" href="classfaiss_1_1gpu_1_1GpuIndex.html#a17b82a8a11783da6eb1b07c9aab98c36">resources_</a>,</div>
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<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVF.html#aaa7dd748e3cbd7ef68f2e384ac503eab">quantizer_</a>-><a class="code" href="classfaiss_1_1gpu_1_1GpuIndexFlat.html#a310b00d4443920a855b11276d488c9a7">getGpuData</a>(),</div>
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<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  subQuantizers_,</div>
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<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  bitsPerCode_,</div>
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<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  (<span class="keywordtype">float</span>*) index-><a class="code" href="structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16">pq</a>.<a class="code" href="structfaiss_1_1ProductQuantizer.html#aab1109a29ba0544358e274d727b23cae">centroids</a>.data(),</div>
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<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  ivfpqConfig_.<a class="code" href="structfaiss_1_1gpu_1_1GpuIndexIVFConfig.html#af432221761d48e4753f501208a60264d">indicesOptions</a>,</div>
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<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  ivfpqConfig_.<a class="code" href="structfaiss_1_1gpu_1_1GpuIndexIVFPQConfig.html#a9dbbec78d77d90b7b150f543e477cc49">useFloat16LookupTables</a>,</div>
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<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <a class="code" href="classfaiss_1_1gpu_1_1GpuIndex.html#af304169eac7781b573f76d545f37b7d9">memorySpace_</a>);</div>
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<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="comment">// Doesn't make sense to reserve memory here</span></div>
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|
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  index_-><a class="code" href="classfaiss_1_1gpu_1_1IVFPQ.html#adcee5dbf48c3cb6b8a67f5f392e155fd">setPrecomputedCodes</a>(ivfpqConfig_.<a class="code" href="structfaiss_1_1gpu_1_1GpuIndexIVFPQConfig.html#ae5b5c7acc06743e5bcca197bc33c30ec">usePrecomputedTables</a>);</div>
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<div class="line"><a name="l00123"></a><span class="lineno"> 123</span> </div>
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<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="comment">// Copy database vectors, if any</span></div>
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<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i < index->codes.size(); ++i) {</div>
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<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <span class="keyword">auto</span>& codes = index->codes[i];</div>
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<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="keyword">auto</span>& ids = index-><a class="code" href="structfaiss_1_1IndexIVF.html#af16d325f5bef22b2e5f90ceea796e80d">ids</a>[i];</div>
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<div class="line"><a name="l00128"></a><span class="lineno"> 128</span> </div>
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<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  FAISS_ASSERT(ids.size() * subQuantizers_ == codes.size());</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>  <span class="comment">// GPU index can only support max int entries per list</span></div>
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<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  FAISS_THROW_IF_NOT_FMT(ids.size() <=</div>
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<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  (size_t) std::numeric_limits<int>::max(),</div>
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<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <span class="stringliteral">"GPU inverted list can only support "</span></div>
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<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="stringliteral">"%zu entries; %zu found"</span>,</div>
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<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  (size_t) std::numeric_limits<int>::max(),</div>
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<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  ids.size());</div>
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<div class="line"><a name="l00138"></a><span class="lineno"> 138</span> </div>
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<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  index_->addCodeVectorsFromCpu(i, codes.data(), ids.data(), ids.size());</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> }</div>
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<div class="line"><a name="l00142"></a><span class="lineno"> 142</span> </div>
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<div class="line"><a name="l00143"></a><span class="lineno"> 143</span> <span class="keywordtype">void</span></div>
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<div class="line"><a name="l00144"></a><span class="lineno"><a class="line" href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#aad10de2407911e9adf42c1be5c5dd390"> 144</a></span> <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#aad10de2407911e9adf42c1be5c5dd390">GpuIndexIVFPQ::copyTo</a>(<a class="code" href="structfaiss_1_1IndexIVFPQ.html">faiss::IndexIVFPQ</a>* index)<span class="keyword"> const </span>{</div>
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<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <a class="code" href="classfaiss_1_1gpu_1_1DeviceScope.html">DeviceScope</a> scope(<a class="code" href="classfaiss_1_1gpu_1_1GpuIndex.html#a67750633faa35677ee505a1e61cfe142">device_</a>);</div>
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<div class="line"><a name="l00146"></a><span class="lineno"> 146</span> </div>
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<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="comment">// We must have the indices in order to copy to ourselves</span></div>
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<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  FAISS_THROW_IF_NOT_MSG(ivfpqConfig_.<a class="code" href="structfaiss_1_1gpu_1_1GpuIndexIVFConfig.html#af432221761d48e4753f501208a60264d">indicesOptions</a> != INDICES_IVF,</div>
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<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="stringliteral">"Cannot copy to CPU as GPU index doesn't retain "</span></div>
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<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="stringliteral">"indices (INDICES_IVF)"</span>);</div>
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<div class="line"><a name="l00151"></a><span class="lineno"> 151</span> </div>
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<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVF.html#a1db0a796b8b2917d989952c5f07fbe55">GpuIndexIVF::copyTo</a>(index);</div>
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<div class="line"><a name="l00153"></a><span class="lineno"> 153</span> </div>
|
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<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="comment">//</span></div>
|
|
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <span class="comment">// IndexIVFPQ information</span></div>
|
|
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <span class="comment">//</span></div>
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<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  index-><a class="code" href="structfaiss_1_1IndexIVFPQ.html#afd13b471df293ae5a6e895704c69a4c3">by_residual</a> = <span class="keyword">true</span>;</div>
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<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  index-><a class="code" href="structfaiss_1_1IndexIVFPQ.html#a1c66ff073c18a1edbe8444c24d870583">use_precomputed_table</a> = 0;</div>
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<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  index-><a class="code" href="structfaiss_1_1IndexIVF.html#a46d1aeddb60643c5b3f096147c3e028f">code_size</a> = subQuantizers_;</div>
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|
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  index-><a class="code" href="structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16">pq</a> = <a class="code" href="structfaiss_1_1ProductQuantizer.html">faiss::ProductQuantizer</a>(this-><a class="code" href="structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d">d</a>, subQuantizers_, bitsPerCode_);</div>
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<div class="line"><a name="l00161"></a><span class="lineno"> 161</span> </div>
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<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  index-><a class="code" href="structfaiss_1_1IndexIVFPQ.html#a9d5373633df7a9bec4de69400b9adeed">do_polysemous_training</a> = <span class="keyword">false</span>;</div>
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|
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  index-><a class="code" href="structfaiss_1_1IndexIVFPQ.html#a2b14cbb5acb3fc28a4df8fde3f5567cd">polysemous_training</a> = <span class="keyword">nullptr</span>;</div>
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<div class="line"><a name="l00164"></a><span class="lineno"> 164</span> </div>
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<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  index-><a class="code" href="structfaiss_1_1IndexIVFPQ.html#a7430fc4fa030c96497abced3b68358d4">scan_table_threshold</a> = 0;</div>
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|
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  index-><a class="code" href="structfaiss_1_1IndexIVFPQ.html#a77501995b3671e377102d2db1a93ade4">max_codes</a> = 0;</div>
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<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  index-><a class="code" href="structfaiss_1_1IndexIVFPQ.html#a3093a0a3e128eafce6e0583b75e9662e">polysemous_ht</a> = 0;</div>
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|
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  index->codes.clear();</div>
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<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  index->codes.resize(<a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVF.html#aba606c141e714fab843493cc58167494">nlist_</a>);</div>
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<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  index-><a class="code" href="structfaiss_1_1IndexIVFPQ.html#a9b310195d610c3e326471b3758206b59">precomputed_table</a>.clear();</div>
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<div class="line"><a name="l00171"></a><span class="lineno"> 171</span> </div>
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<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <span class="keywordflow">if</span> (index_) {</div>
|
|
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  <span class="comment">// Copy the inverted lists</span></div>
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<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVF.html#aba606c141e714fab843493cc58167494">nlist_</a>; ++i) {</div>
|
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<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  index-><a class="code" href="structfaiss_1_1IndexIVF.html#af16d325f5bef22b2e5f90ceea796e80d">ids</a>[i] = <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#a5235cf241ef98e6012fd01907ec705d0">getListIndices</a>(i);</div>
|
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<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  index->codes[i] = <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#a98f0000872701f9f23ac2073723a0aa7">getListCodes</a>(i);</div>
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<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  }</div>
|
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<div class="line"><a name="l00178"></a><span class="lineno"> 178</span> </div>
|
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<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  <span class="comment">// Copy PQ centroids</span></div>
|
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<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  <span class="keyword">auto</span> devPQCentroids = index_-><a class="code" href="classfaiss_1_1gpu_1_1IVFPQ.html#a3e8bff50f894c243c62e832f923e88e7">getPQCentroids</a>();</div>
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<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  index-><a class="code" href="structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16">pq</a>.<a class="code" href="structfaiss_1_1ProductQuantizer.html#aab1109a29ba0544358e274d727b23cae">centroids</a>.resize(devPQCentroids.numElements());</div>
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<div class="line"><a name="l00182"></a><span class="lineno"> 182</span> </div>
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<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  fromDevice<float, 3>(devPQCentroids,</div>
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<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  index-><a class="code" href="structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16">pq</a>.<a class="code" href="structfaiss_1_1ProductQuantizer.html#aab1109a29ba0544358e274d727b23cae">centroids</a>.data(),</div>
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<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <a class="code" href="classfaiss_1_1gpu_1_1GpuIndex.html#a17b82a8a11783da6eb1b07c9aab98c36">resources_</a>-><a class="code" href="classfaiss_1_1gpu_1_1GpuResources.html#a6c564198df6ba675920c993e2af34b8c">getDefaultStream</a>(<a class="code" href="classfaiss_1_1gpu_1_1GpuIndex.html#a67750633faa35677ee505a1e61cfe142">device_</a>));</div>
|
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<div class="line"><a name="l00186"></a><span class="lineno"> 186</span> </div>
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<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  <span class="keywordflow">if</span> (ivfpqConfig_.<a class="code" href="structfaiss_1_1gpu_1_1GpuIndexIVFPQConfig.html#ae5b5c7acc06743e5bcca197bc33c30ec">usePrecomputedTables</a>) {</div>
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<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  index-><a class="code" href="structfaiss_1_1IndexIVFPQ.html#ad99c215aeaf92e995cb97f4044c4d267">precompute_table</a>();</div>
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<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  }</div>
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<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  }</div>
|
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<div class="line"><a name="l00191"></a><span class="lineno"> 191</span> }</div>
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<div class="line"><a name="l00192"></a><span class="lineno"> 192</span> </div>
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<div class="line"><a name="l00193"></a><span class="lineno"> 193</span> <span class="keywordtype">void</span></div>
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<div class="line"><a name="l00194"></a><span class="lineno"><a class="line" href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#a4e7d62e21f7e23fa4e94c69131389eea"> 194</a></span> <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#a4e7d62e21f7e23fa4e94c69131389eea">GpuIndexIVFPQ::reserveMemory</a>(<span class="keywordtype">size_t</span> numVecs) {</div>
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<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  reserveMemoryVecs_ = numVecs;</div>
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<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  <span class="keywordflow">if</span> (index_) {</div>
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<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  <a class="code" href="classfaiss_1_1gpu_1_1DeviceScope.html">DeviceScope</a> scope(<a class="code" href="classfaiss_1_1gpu_1_1GpuIndex.html#a67750633faa35677ee505a1e61cfe142">device_</a>);</div>
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<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  index_-><a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#a02e1e2d080ee31bf7835f89b9f2a13a9">reserveMemory</a>(numVecs);</div>
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<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  }</div>
|
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<div class="line"><a name="l00200"></a><span class="lineno"> 200</span> }</div>
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<div class="line"><a name="l00201"></a><span class="lineno"> 201</span> </div>
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<div class="line"><a name="l00202"></a><span class="lineno"> 202</span> <span class="keywordtype">void</span></div>
|
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<div class="line"><a name="l00203"></a><span class="lineno"><a class="line" href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#afda2894c0ce520e0d3d06eeca5ed5f0c"> 203</a></span> <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#afda2894c0ce520e0d3d06eeca5ed5f0c">GpuIndexIVFPQ::setPrecomputedCodes</a>(<span class="keywordtype">bool</span> enable) {</div>
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<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  ivfpqConfig_.<a class="code" href="structfaiss_1_1gpu_1_1GpuIndexIVFPQConfig.html#ae5b5c7acc06743e5bcca197bc33c30ec">usePrecomputedTables</a> = enable;</div>
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<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  <span class="keywordflow">if</span> (index_) {</div>
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<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  <a class="code" href="classfaiss_1_1gpu_1_1DeviceScope.html">DeviceScope</a> scope(<a class="code" href="classfaiss_1_1gpu_1_1GpuIndex.html#a67750633faa35677ee505a1e61cfe142">device_</a>);</div>
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|
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  index_-><a class="code" href="classfaiss_1_1gpu_1_1IVFPQ.html#adcee5dbf48c3cb6b8a67f5f392e155fd">setPrecomputedCodes</a>(enable);</div>
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<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  }</div>
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<div class="line"><a name="l00209"></a><span class="lineno"> 209</span> </div>
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<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  verifySettings_();</div>
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<div class="line"><a name="l00211"></a><span class="lineno"> 211</span> }</div>
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<div class="line"><a name="l00212"></a><span class="lineno"> 212</span> </div>
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<div class="line"><a name="l00213"></a><span class="lineno"> 213</span> <span class="keywordtype">bool</span></div>
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<div class="line"><a name="l00214"></a><span class="lineno"><a class="line" href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#a679b0aaa229d571aeb842673e3493cc5"> 214</a></span> <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#a679b0aaa229d571aeb842673e3493cc5">GpuIndexIVFPQ::getPrecomputedCodes</a>()<span class="keyword"> const </span>{</div>
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<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  <span class="keywordflow">return</span> ivfpqConfig_.<a class="code" href="structfaiss_1_1gpu_1_1GpuIndexIVFPQConfig.html#ae5b5c7acc06743e5bcca197bc33c30ec">usePrecomputedTables</a>;</div>
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<div class="line"><a name="l00216"></a><span class="lineno"> 216</span> }</div>
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<div class="line"><a name="l00217"></a><span class="lineno"> 217</span> </div>
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<div class="line"><a name="l00218"></a><span class="lineno"> 218</span> <span class="keywordtype">int</span></div>
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<div class="line"><a name="l00219"></a><span class="lineno"><a class="line" href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#a3869ea7898487334fb67ee499f38988d"> 219</a></span> <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#a3869ea7898487334fb67ee499f38988d">GpuIndexIVFPQ::getNumSubQuantizers</a>()<span class="keyword"> const </span>{</div>
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<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  <span class="keywordflow">return</span> subQuantizers_;</div>
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<div class="line"><a name="l00221"></a><span class="lineno"> 221</span> }</div>
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<div class="line"><a name="l00222"></a><span class="lineno"> 222</span> </div>
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<div class="line"><a name="l00223"></a><span class="lineno"> 223</span> <span class="keywordtype">int</span></div>
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|
<div class="line"><a name="l00224"></a><span class="lineno"><a class="line" href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#af87058de254e1430587a16b76f1e4377"> 224</a></span> <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#af87058de254e1430587a16b76f1e4377">GpuIndexIVFPQ::getBitsPerCode</a>()<span class="keyword"> const </span>{</div>
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<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  <span class="keywordflow">return</span> bitsPerCode_;</div>
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<div class="line"><a name="l00226"></a><span class="lineno"> 226</span> }</div>
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<div class="line"><a name="l00227"></a><span class="lineno"> 227</span> </div>
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<div class="line"><a name="l00228"></a><span class="lineno"> 228</span> <span class="keywordtype">int</span></div>
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<div class="line"><a name="l00229"></a><span class="lineno"><a class="line" href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#a2f50e79af6727962cd89534438d4769e"> 229</a></span> <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#a2f50e79af6727962cd89534438d4769e">GpuIndexIVFPQ::getCentroidsPerSubQuantizer</a>()<span class="keyword"> const </span>{</div>
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<div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  <span class="keywordflow">return</span> utils::pow2(bitsPerCode_);</div>
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<div class="line"><a name="l00231"></a><span class="lineno"> 231</span> }</div>
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<div class="line"><a name="l00232"></a><span class="lineno"> 232</span> </div>
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<div class="line"><a name="l00233"></a><span class="lineno"> 233</span> <span class="keywordtype">size_t</span></div>
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<div class="line"><a name="l00234"></a><span class="lineno"><a class="line" href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#a83831088d9593f753560965172ccb0a0"> 234</a></span> <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#a83831088d9593f753560965172ccb0a0">GpuIndexIVFPQ::reclaimMemory</a>() {</div>
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<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  <span class="keywordflow">if</span> (index_) {</div>
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<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  <a class="code" href="classfaiss_1_1gpu_1_1DeviceScope.html">DeviceScope</a> scope(<a class="code" href="classfaiss_1_1gpu_1_1GpuIndex.html#a67750633faa35677ee505a1e61cfe142">device_</a>);</div>
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<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  <span class="keywordflow">return</span> index_-><a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#ac9b69e1b2582cb2c064b5fff60d31cc8">reclaimMemory</a>();</div>
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<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  }</div>
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<div class="line"><a name="l00239"></a><span class="lineno"> 239</span> </div>
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<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  <span class="keywordflow">return</span> 0;</div>
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<div class="line"><a name="l00241"></a><span class="lineno"> 241</span> }</div>
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<div class="line"><a name="l00242"></a><span class="lineno"> 242</span> </div>
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<div class="line"><a name="l00243"></a><span class="lineno"> 243</span> <span class="keywordtype">void</span></div>
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<div class="line"><a name="l00244"></a><span class="lineno"><a class="line" href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#a3a43a70461e09ef87bdb7b48ec420dd2"> 244</a></span> <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#a3a43a70461e09ef87bdb7b48ec420dd2">GpuIndexIVFPQ::reset</a>() {</div>
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<div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  <span class="keywordflow">if</span> (index_) {</div>
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<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  <a class="code" href="classfaiss_1_1gpu_1_1DeviceScope.html">DeviceScope</a> scope(<a class="code" href="classfaiss_1_1gpu_1_1GpuIndex.html#a67750633faa35677ee505a1e61cfe142">device_</a>);</div>
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<div class="line"><a name="l00247"></a><span class="lineno"> 247</span> </div>
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<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  index_-><a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#a7ea671876443c93436499ad581f16997">reset</a>();</div>
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<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  this-><a class="code" href="structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd">ntotal</a> = 0;</div>
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<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  } <span class="keywordflow">else</span> {</div>
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<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  FAISS_ASSERT(this-><a class="code" href="structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd">ntotal</a> == 0);</div>
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<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  }</div>
|
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<div class="line"><a name="l00253"></a><span class="lineno"> 253</span> }</div>
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<div class="line"><a name="l00254"></a><span class="lineno"> 254</span> </div>
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<div class="line"><a name="l00255"></a><span class="lineno"> 255</span> <span class="keywordtype">void</span></div>
|
|
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span> GpuIndexIVFPQ::trainResidualQuantizer_(<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>
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|
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  <span class="comment">// Code largely copied from faiss::IndexIVFPQ</span></div>
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|
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  <span class="comment">// FIXME: GPUize more of this</span></div>
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|
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  n = std::min(n, (<a class="code" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">Index::idx_t</a>) (1 << bitsPerCode_) * 64);</div>
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<div class="line"><a name="l00260"></a><span class="lineno"> 260</span> </div>
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<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  <span class="keywordflow">if</span> (this-><a class="code" href="structfaiss_1_1Index.html#a5590d847c5c2b958affd2a05e58a6f23">verbose</a>) {</div>
|
|
<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  printf(<span class="stringliteral">"computing residuals\n"</span>);</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> </div>
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<div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  std::vector<Index::idx_t> <a class="code" href="structfaiss_1_1Index.html#a8bc5d8d1cd0dd7b34b3c98a9f76b4a9c">assign</a>(n);</div>
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|
<div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVF.html#aaa7dd748e3cbd7ef68f2e384ac503eab">quantizer_</a>-><a class="code" href="structfaiss_1_1Index.html#a8bc5d8d1cd0dd7b34b3c98a9f76b4a9c">assign</a> (n, x, <a class="code" href="structfaiss_1_1Index.html#a8bc5d8d1cd0dd7b34b3c98a9f76b4a9c">assign</a>.data());</div>
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<div class="line"><a name="l00267"></a><span class="lineno"> 267</span> </div>
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|
<div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  std::vector<float> residuals(n * <a class="code" href="structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d">d</a>);</div>
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|
<div class="line"><a name="l00269"></a><span class="lineno"> 269</span> </div>
|
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<div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  <span class="keywordflow">for</span> (<a class="code" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">idx_t</a> i = 0; i < n; i++) {</div>
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|
<div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVF.html#aaa7dd748e3cbd7ef68f2e384ac503eab">quantizer_</a>-><a class="code" href="structfaiss_1_1Index.html#aaae77608bbda70b1098897e9167a82f9">compute_residual</a>(x + i * <a class="code" href="structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d">d</a>, &residuals[i * d], <a class="code" href="structfaiss_1_1Index.html#a8bc5d8d1cd0dd7b34b3c98a9f76b4a9c">assign</a>[i]);</div>
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|
<div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  }</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="keywordflow">if</span> (this-><a class="code" href="structfaiss_1_1Index.html#a5590d847c5c2b958affd2a05e58a6f23">verbose</a>) {</div>
|
|
<div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  printf(<span class="stringliteral">"training %d x %d product quantizer on %ld vectors in %dD\n"</span>,</div>
|
|
<div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  subQuantizers_, <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#a2f50e79af6727962cd89534438d4769e">getCentroidsPerSubQuantizer</a>(), n, this-><a class="code" href="structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d">d</a>);</div>
|
|
<div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  }</div>
|
|
<div class="line"><a name="l00278"></a><span class="lineno"> 278</span> </div>
|
|
<div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  <span class="comment">// Just use the CPU product quantizer to determine sub-centroids</span></div>
|
|
<div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  <a class="code" href="structfaiss_1_1ProductQuantizer.html">faiss::ProductQuantizer</a> pq(this-><a class="code" href="structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d">d</a>, subQuantizers_, bitsPerCode_);</div>
|
|
<div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  pq.verbose = this-><a class="code" href="structfaiss_1_1Index.html#a5590d847c5c2b958affd2a05e58a6f23">verbose</a>;</div>
|
|
<div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  pq.train(n, residuals.data());</div>
|
|
<div class="line"><a name="l00283"></a><span class="lineno"> 283</span> </div>
|
|
<div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  index_ = <span class="keyword">new</span> IVFPQ(<a class="code" href="classfaiss_1_1gpu_1_1GpuIndex.html#a17b82a8a11783da6eb1b07c9aab98c36">resources_</a>,</div>
|
|
<div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVF.html#aaa7dd748e3cbd7ef68f2e384ac503eab">quantizer_</a>-><a class="code" href="classfaiss_1_1gpu_1_1GpuIndexFlat.html#a310b00d4443920a855b11276d488c9a7">getGpuData</a>(),</div>
|
|
<div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  subQuantizers_,</div>
|
|
<div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  bitsPerCode_,</div>
|
|
<div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  pq.centroids.data(),</div>
|
|
<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  ivfpqConfig_.<a class="code" href="structfaiss_1_1gpu_1_1GpuIndexIVFConfig.html#af432221761d48e4753f501208a60264d">indicesOptions</a>,</div>
|
|
<div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  ivfpqConfig_.<a class="code" href="structfaiss_1_1gpu_1_1GpuIndexIVFPQConfig.html#a9dbbec78d77d90b7b150f543e477cc49">useFloat16LookupTables</a>,</div>
|
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<div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  <a class="code" href="classfaiss_1_1gpu_1_1GpuIndex.html#af304169eac7781b573f76d545f37b7d9">memorySpace_</a>);</div>
|
|
<div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  <span class="keywordflow">if</span> (reserveMemoryVecs_) {</div>
|
|
<div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  index_-><a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#a02e1e2d080ee31bf7835f89b9f2a13a9">reserveMemory</a>(reserveMemoryVecs_);</div>
|
|
<div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  }</div>
|
|
<div class="line"><a name="l00295"></a><span class="lineno"> 295</span> </div>
|
|
<div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  index_-><a class="code" href="classfaiss_1_1gpu_1_1IVFPQ.html#adcee5dbf48c3cb6b8a67f5f392e155fd">setPrecomputedCodes</a>(ivfpqConfig_.<a class="code" href="structfaiss_1_1gpu_1_1GpuIndexIVFPQConfig.html#ae5b5c7acc06743e5bcca197bc33c30ec">usePrecomputedTables</a>);</div>
|
|
<div class="line"><a name="l00297"></a><span class="lineno"> 297</span> }</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> <span class="keywordtype">void</span></div>
|
|
<div class="line"><a name="l00300"></a><span class="lineno"><a class="line" href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#ac4814acafa4bc340a4c4bdcafd469b56"> 300</a></span> <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#ac4814acafa4bc340a4c4bdcafd469b56">GpuIndexIVFPQ::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>
|
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<div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  <a class="code" href="classfaiss_1_1gpu_1_1DeviceScope.html">DeviceScope</a> scope(<a class="code" href="classfaiss_1_1gpu_1_1GpuIndex.html#a67750633faa35677ee505a1e61cfe142">device_</a>);</div>
|
|
<div class="line"><a name="l00302"></a><span class="lineno"> 302</span> </div>
|
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<div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  <span class="keywordflow">if</span> (this-><a class="code" href="structfaiss_1_1Index.html#a6e92732617c4dbe364e7678dd8773a7f">is_trained</a>) {</div>
|
|
<div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  FAISS_ASSERT(<a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVF.html#aaa7dd748e3cbd7ef68f2e384ac503eab">quantizer_</a>-><a class="code" href="structfaiss_1_1Index.html#a6e92732617c4dbe364e7678dd8773a7f">is_trained</a>);</div>
|
|
<div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  FAISS_ASSERT(<a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVF.html#aaa7dd748e3cbd7ef68f2e384ac503eab">quantizer_</a>-><a class="code" href="structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd">ntotal</a> == <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVF.html#aba606c141e714fab843493cc58167494">nlist_</a>);</div>
|
|
<div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  FAISS_ASSERT(index_);</div>
|
|
<div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  <span class="keywordflow">return</span>;</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> </div>
|
|
<div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  FAISS_ASSERT(!index_);</div>
|
|
<div class="line"><a name="l00311"></a><span class="lineno"> 311</span> </div>
|
|
<div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  trainQuantizer_(n, x);</div>
|
|
<div class="line"><a name="l00313"></a><span class="lineno"> 313</span>  trainResidualQuantizer_(n, x);</div>
|
|
<div class="line"><a name="l00314"></a><span class="lineno"> 314</span> </div>
|
|
<div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  this-><a class="code" href="structfaiss_1_1Index.html#a6e92732617c4dbe364e7678dd8773a7f">is_trained</a> = <span class="keyword">true</span>;</div>
|
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<div class="line"><a name="l00316"></a><span class="lineno"> 316</span> }</div>
|
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<div class="line"><a name="l00317"></a><span class="lineno"> 317</span> </div>
|
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<div class="line"><a name="l00318"></a><span class="lineno"> 318</span> <span class="keywordtype">void</span></div>
|
|
<div class="line"><a name="l00319"></a><span class="lineno"><a class="line" href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#a50e74f0621ca2fe5688825f434ad2bb2"> 319</a></span> <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#a50e74f0621ca2fe5688825f434ad2bb2">GpuIndexIVFPQ::addImpl_</a>(<a class="code" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">Index::idx_t</a> n,</div>
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<div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  <span class="keyword">const</span> <span class="keywordtype">float</span>* x,</div>
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<div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  <span class="keyword">const</span> <a class="code" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">Index::idx_t</a>* xids) {</div>
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<div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  <span class="comment">// Device is already set in GpuIndex::addInternal_</span></div>
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<div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  FAISS_ASSERT(index_);</div>
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<div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  FAISS_ASSERT(n > 0);</div>
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<div class="line"><a name="l00325"></a><span class="lineno"> 325</span> </div>
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<div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  <span class="keyword">auto</span> stream = <a class="code" href="classfaiss_1_1gpu_1_1GpuIndex.html#a17b82a8a11783da6eb1b07c9aab98c36">resources_</a>-><a class="code" href="classfaiss_1_1gpu_1_1GpuResources.html#aa0354aa570c24e17a9f8a6a45b153ed2">getDefaultStreamCurrentDevice</a>();</div>
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<div class="line"><a name="l00327"></a><span class="lineno"> 327</span> </div>
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<div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  <span class="keyword">auto</span> deviceVecs =</div>
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<div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  toDevice<float, 2>(<a class="code" href="classfaiss_1_1gpu_1_1GpuIndex.html#a17b82a8a11783da6eb1b07c9aab98c36">resources_</a>,</div>
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<div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  <a class="code" href="classfaiss_1_1gpu_1_1GpuIndex.html#a67750633faa35677ee505a1e61cfe142">device_</a>,</div>
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<div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  <span class="keyword">const_cast<</span><span class="keywordtype">float</span>*<span class="keyword">></span>(x),</div>
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<div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  stream,</div>
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<div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  {(int) n, index_-><a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#a4d44e8aebc380b7c846a8d8e6e835540">getDim</a>()});</div>
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<div class="line"><a name="l00334"></a><span class="lineno"> 334</span> </div>
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<div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  <span class="keyword">auto</span> deviceIndices =</div>
|
|
<div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  toDevice<Index::idx_t, 1>(<a class="code" href="classfaiss_1_1gpu_1_1GpuIndex.html#a17b82a8a11783da6eb1b07c9aab98c36">resources_</a>,</div>
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<div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  <a class="code" href="classfaiss_1_1gpu_1_1GpuIndex.html#a67750633faa35677ee505a1e61cfe142">device_</a>,</div>
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|
<div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  <span class="keyword">const_cast<</span><a class="code" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">Index::idx_t</a>*<span class="keyword">></span>(xids),</div>
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|
<div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  stream,</div>
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<div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  {(int) n});</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">// Not all vectors may be able to be added (some may contain NaNs</span></div>
|
|
<div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  <span class="comment">// etc)</span></div>
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|
<div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  <a class="code" href="structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd">ntotal</a> += index_-><a class="code" href="classfaiss_1_1gpu_1_1IVFPQ.html#ab1e07b04b25569cc58c5f3f033f4dab3">classifyAndAddVectors</a>(deviceVecs, deviceIndices);</div>
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|
<div class="line"><a name="l00345"></a><span class="lineno"> 345</span> }</div>
|
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<div class="line"><a name="l00346"></a><span class="lineno"> 346</span> </div>
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<div class="line"><a name="l00347"></a><span class="lineno"> 347</span> <span class="keywordtype">void</span></div>
|
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<div class="line"><a name="l00348"></a><span class="lineno"><a class="line" href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#a42f619bee6ecb268442c7807e75896fe"> 348</a></span> <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#a42f619bee6ecb268442c7807e75896fe">GpuIndexIVFPQ::searchImpl_</a>(<a class="code" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">faiss::Index::idx_t</a> n,</div>
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<div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  <span class="keyword">const</span> <span class="keywordtype">float</span>* x,</div>
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<div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  <a class="code" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">faiss::Index::idx_t</a> k,</div>
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|
<div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  <span class="keywordtype">float</span>* distances,</div>
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<div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  <a class="code" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">faiss::Index::idx_t</a>* labels)<span class="keyword"> const </span>{</div>
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|
<div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  <span class="comment">// Device is already set in GpuIndex::search</span></div>
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|
<div class="line"><a name="l00354"></a><span class="lineno"> 354</span> </div>
|
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<div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  FAISS_ASSERT(index_);</div>
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|
<div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  FAISS_ASSERT(n > 0);</div>
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|
<div class="line"><a name="l00357"></a><span class="lineno"> 357</span> </div>
|
|
<div class="line"><a name="l00358"></a><span class="lineno"> 358</span>  <span class="comment">// Make sure arguments are on the device we desire; use temporary</span></div>
|
|
<div class="line"><a name="l00359"></a><span class="lineno"> 359</span>  <span class="comment">// memory allocations to move it if necessary</span></div>
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|
<div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  <span class="keyword">auto</span> devX =</div>
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|
<div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  toDevice<float, 2>(<a class="code" href="classfaiss_1_1gpu_1_1GpuIndex.html#a17b82a8a11783da6eb1b07c9aab98c36">resources_</a>,</div>
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<div class="line"><a name="l00362"></a><span class="lineno"> 362</span>  <a class="code" href="classfaiss_1_1gpu_1_1GpuIndex.html#a67750633faa35677ee505a1e61cfe142">device_</a>,</div>
|
|
<div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  <span class="keyword">const_cast<</span><span class="keywordtype">float</span>*<span class="keyword">></span>(x),</div>
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|
<div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  resources_->getDefaultStream(device_),</div>
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|
<div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  {(int) n, index_-><a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#a4d44e8aebc380b7c846a8d8e6e835540">getDim</a>()});</div>
|
|
<div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  <span class="keyword">auto</span> devDistances =</div>
|
|
<div class="line"><a name="l00367"></a><span class="lineno"> 367</span>  toDevice<float, 2>(<a class="code" href="classfaiss_1_1gpu_1_1GpuIndex.html#a17b82a8a11783da6eb1b07c9aab98c36">resources_</a>,</div>
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|
<div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  <a class="code" href="classfaiss_1_1gpu_1_1GpuIndex.html#a67750633faa35677ee505a1e61cfe142">device_</a>,</div>
|
|
<div class="line"><a name="l00369"></a><span class="lineno"> 369</span>  distances,</div>
|
|
<div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  resources_->getDefaultStream(device_),</div>
|
|
<div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  {(int) n, (<span class="keywordtype">int</span>) k});</div>
|
|
<div class="line"><a name="l00372"></a><span class="lineno"> 372</span>  <span class="keyword">auto</span> devLabels =</div>
|
|
<div class="line"><a name="l00373"></a><span class="lineno"> 373</span>  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="l00374"></a><span class="lineno"> 374</span>  <a class="code" href="classfaiss_1_1gpu_1_1GpuIndex.html#a67750633faa35677ee505a1e61cfe142">device_</a>,</div>
|
|
<div class="line"><a name="l00375"></a><span class="lineno"> 375</span>  labels,</div>
|
|
<div class="line"><a name="l00376"></a><span class="lineno"> 376</span>  resources_->getDefaultStream(device_),</div>
|
|
<div class="line"><a name="l00377"></a><span class="lineno"> 377</span>  {(int) n, (<span class="keywordtype">int</span>) k});</div>
|
|
<div class="line"><a name="l00378"></a><span class="lineno"> 378</span> </div>
|
|
<div class="line"><a name="l00379"></a><span class="lineno"> 379</span>  index_-><a class="code" href="classfaiss_1_1gpu_1_1IVFPQ.html#ab0c458aab9a3d903f31b0e63ce16e623">query</a>(devX,</div>
|
|
<div class="line"><a name="l00380"></a><span class="lineno"> 380</span>  <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVF.html#a187bdcbbac02bf8fd0e6bb40a1c0426b">nprobe_</a>,</div>
|
|
<div class="line"><a name="l00381"></a><span class="lineno"> 381</span>  (<span class="keywordtype">int</span>) k,</div>
|
|
<div class="line"><a name="l00382"></a><span class="lineno"> 382</span>  devDistances,</div>
|
|
<div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  devLabels);</div>
|
|
<div class="line"><a name="l00384"></a><span class="lineno"> 384</span> </div>
|
|
<div class="line"><a name="l00385"></a><span class="lineno"> 385</span>  <span class="comment">// Copy back if necessary</span></div>
|
|
<div class="line"><a name="l00386"></a><span class="lineno"> 386</span>  fromDevice<float, 2>(</div>
|
|
<div class="line"><a name="l00387"></a><span class="lineno"> 387</span>  devDistances, distances, resources_->getDefaultStream(device_));</div>
|
|
<div class="line"><a name="l00388"></a><span class="lineno"> 388</span>  fromDevice<faiss::Index::idx_t, 2>(</div>
|
|
<div class="line"><a name="l00389"></a><span class="lineno"> 389</span>  devLabels, labels, resources_->getDefaultStream(device_));</div>
|
|
<div class="line"><a name="l00390"></a><span class="lineno"> 390</span> }</div>
|
|
<div class="line"><a name="l00391"></a><span class="lineno"> 391</span> </div>
|
|
<div class="line"><a name="l00392"></a><span class="lineno"> 392</span> <span class="keywordtype">int</span></div>
|
|
<div class="line"><a name="l00393"></a><span class="lineno"><a class="line" href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#ab7f77961857e560b4dbb81888a8c8bf8"> 393</a></span> <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#ab7f77961857e560b4dbb81888a8c8bf8">GpuIndexIVFPQ::getListLength</a>(<span class="keywordtype">int</span> listId)<span class="keyword"> const </span>{</div>
|
|
<div class="line"><a name="l00394"></a><span class="lineno"> 394</span>  FAISS_ASSERT(index_);</div>
|
|
<div class="line"><a name="l00395"></a><span class="lineno"> 395</span>  <span class="keywordflow">return</span> index_-><a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#a7b1ee21f9919fb077db5e48e91943582">getListLength</a>(listId);</div>
|
|
<div class="line"><a name="l00396"></a><span class="lineno"> 396</span> }</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> std::vector<unsigned char></div>
|
|
<div class="line"><a name="l00399"></a><span class="lineno"><a class="line" href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#a98f0000872701f9f23ac2073723a0aa7"> 399</a></span> <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#a98f0000872701f9f23ac2073723a0aa7">GpuIndexIVFPQ::getListCodes</a>(<span class="keywordtype">int</span> listId)<span class="keyword"> const </span>{</div>
|
|
<div class="line"><a name="l00400"></a><span class="lineno"> 400</span>  FAISS_ASSERT(index_);</div>
|
|
<div class="line"><a name="l00401"></a><span class="lineno"> 401</span>  <a class="code" href="classfaiss_1_1gpu_1_1DeviceScope.html">DeviceScope</a> scope(device_);</div>
|
|
<div class="line"><a name="l00402"></a><span class="lineno"> 402</span> </div>
|
|
<div class="line"><a name="l00403"></a><span class="lineno"> 403</span>  <span class="keywordflow">return</span> index_-><a class="code" href="classfaiss_1_1gpu_1_1IVFPQ.html#a5b349dd021b11b5f48531825359b0657">getListCodes</a>(listId);</div>
|
|
<div class="line"><a name="l00404"></a><span class="lineno"> 404</span> }</div>
|
|
<div class="line"><a name="l00405"></a><span class="lineno"> 405</span> </div>
|
|
<div class="line"><a name="l00406"></a><span class="lineno"> 406</span> std::vector<long></div>
|
|
<div class="line"><a name="l00407"></a><span class="lineno"><a class="line" href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#a5235cf241ef98e6012fd01907ec705d0"> 407</a></span> <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#a5235cf241ef98e6012fd01907ec705d0">GpuIndexIVFPQ::getListIndices</a>(<span class="keywordtype">int</span> listId)<span class="keyword"> const </span>{</div>
|
|
<div class="line"><a name="l00408"></a><span class="lineno"> 408</span>  FAISS_ASSERT(index_);</div>
|
|
<div class="line"><a name="l00409"></a><span class="lineno"> 409</span>  <a class="code" href="classfaiss_1_1gpu_1_1DeviceScope.html">DeviceScope</a> scope(device_);</div>
|
|
<div class="line"><a name="l00410"></a><span class="lineno"> 410</span> </div>
|
|
<div class="line"><a name="l00411"></a><span class="lineno"> 411</span>  <span class="keywordflow">return</span> index_-><a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#a4a4ed220b9433aa788ed32db8f20a9db">getListIndices</a>(listId);</div>
|
|
<div class="line"><a name="l00412"></a><span class="lineno"> 412</span> }</div>
|
|
<div class="line"><a name="l00413"></a><span class="lineno"> 413</span> </div>
|
|
<div class="line"><a name="l00414"></a><span class="lineno"> 414</span> <span class="keywordtype">void</span></div>
|
|
<div class="line"><a name="l00415"></a><span class="lineno"> 415</span> GpuIndexIVFPQ::verifySettings_()<span class="keyword"> const </span>{</div>
|
|
<div class="line"><a name="l00416"></a><span class="lineno"> 416</span>  <span class="comment">// Our implementation has these restrictions:</span></div>
|
|
<div class="line"><a name="l00417"></a><span class="lineno"> 417</span> </div>
|
|
<div class="line"><a name="l00418"></a><span class="lineno"> 418</span>  <span class="comment">// Must have some number of lists</span></div>
|
|
<div class="line"><a name="l00419"></a><span class="lineno"> 419</span>  FAISS_THROW_IF_NOT_MSG(<a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVF.html#aba606c141e714fab843493cc58167494">nlist_</a> > 0, <span class="stringliteral">"nlist must be >0"</span>);</div>
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|
<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">// up to a single byte per code</span></div>
|
|
<div class="line"><a name="l00422"></a><span class="lineno"> 422</span>  FAISS_THROW_IF_NOT_FMT(bitsPerCode_ <= 8,</div>
|
|
<div class="line"><a name="l00423"></a><span class="lineno"> 423</span>  <span class="stringliteral">"Bits per code must be <= 8 (passed %d)"</span>, bitsPerCode_);</div>
|
|
<div class="line"><a name="l00424"></a><span class="lineno"> 424</span> </div>
|
|
<div class="line"><a name="l00425"></a><span class="lineno"> 425</span>  <span class="comment">// Sub-quantizers must evenly divide dimensions available</span></div>
|
|
<div class="line"><a name="l00426"></a><span class="lineno"> 426</span>  FAISS_THROW_IF_NOT_FMT(this-><a class="code" href="structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d">d</a> % subQuantizers_ == 0,</div>
|
|
<div class="line"><a name="l00427"></a><span class="lineno"> 427</span>  <span class="stringliteral">"Number of sub-quantizers (%d) must be an "</span></div>
|
|
<div class="line"><a name="l00428"></a><span class="lineno"> 428</span>  <span class="stringliteral">"even divisor of the number of dimensions (%d)"</span>,</div>
|
|
<div class="line"><a name="l00429"></a><span class="lineno"> 429</span>  subQuantizers_, this-><a class="code" href="structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d">d</a>);</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">// The number of bytes per encoded vector must be one we support</span></div>
|
|
<div class="line"><a name="l00432"></a><span class="lineno"> 432</span>  FAISS_THROW_IF_NOT_FMT(<a class="code" href="classfaiss_1_1gpu_1_1IVFPQ.html#adb58eeacdceb0e0fde1820ca7f116e05">IVFPQ::isSupportedPQCodeLength</a>(subQuantizers_),</div>
|
|
<div class="line"><a name="l00433"></a><span class="lineno"> 433</span>  <span class="stringliteral">"Number of bytes per encoded vector / sub-quantizers (%d) "</span></div>
|
|
<div class="line"><a name="l00434"></a><span class="lineno"> 434</span>  <span class="stringliteral">"is not supported"</span>,</div>
|
|
<div class="line"><a name="l00435"></a><span class="lineno"> 435</span>  subQuantizers_);</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>  <span class="comment">// We must have enough shared memory on the current device to store</span></div>
|
|
<div class="line"><a name="l00438"></a><span class="lineno"> 438</span>  <span class="comment">// our lookup distances</span></div>
|
|
<div class="line"><a name="l00439"></a><span class="lineno"> 439</span>  <span class="keywordtype">int</span> lookupTableSize = <span class="keyword">sizeof</span>(float);</div>
|
|
<div class="line"><a name="l00440"></a><span class="lineno"> 440</span> <span class="preprocessor">#ifdef FAISS_USE_FLOAT16</span></div>
|
|
<div class="line"><a name="l00441"></a><span class="lineno"> 441</span> <span class="preprocessor"></span> <span class="keywordflow">if</span> (ivfpqConfig_.<a class="code" href="structfaiss_1_1gpu_1_1GpuIndexIVFPQConfig.html#a9dbbec78d77d90b7b150f543e477cc49">useFloat16LookupTables</a>) {</div>
|
|
<div class="line"><a name="l00442"></a><span class="lineno"> 442</span>  lookupTableSize = <span class="keyword">sizeof</span>(half);</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> <span class="preprocessor">#endif</span></div>
|
|
<div class="line"><a name="l00445"></a><span class="lineno"> 445</span> <span class="preprocessor"></span></div>
|
|
<div class="line"><a name="l00446"></a><span class="lineno"> 446</span>  <span class="comment">// 64 bytes per code is only supported with usage of float16, at 2^8</span></div>
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<div class="line"><a name="l00447"></a><span class="lineno"> 447</span>  <span class="comment">// codes per subquantizer</span></div>
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<div class="line"><a name="l00448"></a><span class="lineno"> 448</span>  <span class="keywordtype">size_t</span> requiredSmemSize =</div>
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<div class="line"><a name="l00449"></a><span class="lineno"> 449</span>  lookupTableSize * subQuantizers_ * utils::pow2(bitsPerCode_);</div>
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<div class="line"><a name="l00450"></a><span class="lineno"> 450</span>  <span class="keywordtype">size_t</span> smemPerBlock = getMaxSharedMemPerBlock(device_);</div>
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<div class="line"><a name="l00451"></a><span class="lineno"> 451</span> </div>
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<div class="line"><a name="l00452"></a><span class="lineno"> 452</span>  FAISS_THROW_IF_NOT_FMT(requiredSmemSize</div>
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<div class="line"><a name="l00453"></a><span class="lineno"> 453</span>  <= getMaxSharedMemPerBlock(device_),</div>
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<div class="line"><a name="l00454"></a><span class="lineno"> 454</span>  <span class="stringliteral">"Device %d has %zu bytes of shared memory, while "</span></div>
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<div class="line"><a name="l00455"></a><span class="lineno"> 455</span>  <span class="stringliteral">"%d bits per code and %d sub-quantizers requires %zu "</span></div>
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<div class="line"><a name="l00456"></a><span class="lineno"> 456</span>  <span class="stringliteral">"bytes. Consider useFloat16LookupTables and/or "</span></div>
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<div class="line"><a name="l00457"></a><span class="lineno"> 457</span>  <span class="stringliteral">"reduce parameters"</span>,</div>
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<div class="line"><a name="l00458"></a><span class="lineno"> 458</span>  device_, smemPerBlock, bitsPerCode_, subQuantizers_,</div>
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<div class="line"><a name="l00459"></a><span class="lineno"> 459</span>  requiredSmemSize);</div>
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<div class="line"><a name="l00460"></a><span class="lineno"> 460</span> </div>
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<div class="line"><a name="l00461"></a><span class="lineno"> 461</span>  <span class="comment">// If precomputed codes are disabled, we have an extra limitation in</span></div>
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<div class="line"><a name="l00462"></a><span class="lineno"> 462</span>  <span class="comment">// terms of the number of dimensions per subquantizer</span></div>
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<div class="line"><a name="l00463"></a><span class="lineno"> 463</span>  FAISS_THROW_IF_NOT_FMT(ivfpqConfig_.<a class="code" href="structfaiss_1_1gpu_1_1GpuIndexIVFPQConfig.html#ae5b5c7acc06743e5bcca197bc33c30ec">usePrecomputedTables</a> ||</div>
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<div class="line"><a name="l00464"></a><span class="lineno"> 464</span>  <a class="code" href="classfaiss_1_1gpu_1_1IVFPQ.html#a0eedf0295ad73125ee1254173a176674">IVFPQ::isSupportedNoPrecomputedSubDimSize</a>(</div>
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<div class="line"><a name="l00465"></a><span class="lineno"> 465</span>  this->d / subQuantizers_),</div>
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<div class="line"><a name="l00466"></a><span class="lineno"> 466</span>  <span class="stringliteral">"Number of dimensions per sub-quantizer (%d) "</span></div>
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<div class="line"><a name="l00467"></a><span class="lineno"> 467</span>  <span class="stringliteral">"is not currently supported without precomputed codes. "</span></div>
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<div class="line"><a name="l00468"></a><span class="lineno"> 468</span>  <span class="stringliteral">"Only 1, 2, 3, 4, 6, 8, 10, 12, 16, 20, 24, 28, 32 dims "</span></div>
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<div class="line"><a name="l00469"></a><span class="lineno"> 469</span>  <span class="stringliteral">"per sub-quantizer are currently supported with no "</span></div>
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<div class="line"><a name="l00470"></a><span class="lineno"> 470</span>  <span class="stringliteral">"precomputed codes. "</span></div>
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<div class="line"><a name="l00471"></a><span class="lineno"> 471</span>  <span class="stringliteral">"Precomputed codes supports any number of dimensions, but "</span></div>
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<div class="line"><a name="l00472"></a><span class="lineno"> 472</span>  <span class="stringliteral">"will involve memory overheads."</span>,</div>
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<div class="line"><a name="l00473"></a><span class="lineno"> 473</span>  this->d / subQuantizers_);</div>
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<div class="line"><a name="l00474"></a><span class="lineno"> 474</span> </div>
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<div class="line"><a name="l00475"></a><span class="lineno"> 475</span>  <span class="comment">// TODO: fully implement METRIC_INNER_PRODUCT</span></div>
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<div class="line"><a name="l00476"></a><span class="lineno"> 476</span>  FAISS_THROW_IF_NOT_MSG(this-><a class="code" href="structfaiss_1_1Index.html#a8e18f641854b2bde83ecff0a2f9a6f4e">metric_type</a> == faiss::METRIC_L2,</div>
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<div class="line"><a name="l00477"></a><span class="lineno"> 477</span>  <span class="stringliteral">"METRIC_INNER_PRODUCT is currently unsupported"</span>);</div>
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<div class="line"><a name="l00478"></a><span class="lineno"> 478</span> }</div>
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<div class="line"><a name="l00479"></a><span class="lineno"> 479</span> </div>
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<div class="line"><a name="l00480"></a><span class="lineno"> 480</span> } } <span class="comment">// namespace</span></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1GpuIndexIVFPQ_html_a5235cf241ef98e6012fd01907ec705d0"><div class="ttname"><a href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#a5235cf241ef98e6012fd01907ec705d0">faiss::gpu::GpuIndexIVFPQ::getListIndices</a></div><div class="ttdeci">std::vector< long > getListIndices(int listId) const </div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexIVFPQ_8cu_source.html#l00407">GpuIndexIVFPQ.cu:407</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1GpuIndexIVFPQ_html_a42f619bee6ecb268442c7807e75896fe"><div class="ttname"><a href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#a42f619bee6ecb268442c7807e75896fe">faiss::gpu::GpuIndexIVFPQ::searchImpl_</a></div><div class="ttdeci">void searchImpl_(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="ttdoc">Called from GpuIndex for search. </div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexIVFPQ_8cu_source.html#l00348">GpuIndexIVFPQ.cu:348</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexIVFPQ_html_ad99c215aeaf92e995cb97f4044c4d267"><div class="ttname"><a href="structfaiss_1_1IndexIVFPQ.html#ad99c215aeaf92e995cb97f4044c4d267">faiss::IndexIVFPQ::precompute_table</a></div><div class="ttdeci">void precompute_table()</div><div class="ttdoc">build precomputed table </div><div class="ttdef"><b>Definition:</b> <a href="IndexIVFPQ_8cpp_source.html#l00356">IndexIVFPQ.cpp:356</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1GpuIndexIVFPQ_html_a3a43a70461e09ef87bdb7b48ec420dd2"><div class="ttname"><a href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#a3a43a70461e09ef87bdb7b48ec420dd2">faiss::gpu::GpuIndexIVFPQ::reset</a></div><div class="ttdeci">void reset() override</div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexIVFPQ_8cu_source.html#l00244">GpuIndexIVFPQ.cu:244</a></div></div>
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<div class="ttc" id="structfaiss_1_1ProductQuantizer_html_ac920fea11f02e8407d12cc99a09f5ea5"><div class="ttname"><a href="structfaiss_1_1ProductQuantizer.html#ac920fea11f02e8407d12cc99a09f5ea5">faiss::ProductQuantizer::nbits</a></div><div class="ttdeci">size_t nbits</div><div class="ttdoc">number of bits per quantization index </div><div class="ttdef"><b>Definition:</b> <a href="ProductQuantizer_8h_source.html#l00029">ProductQuantizer.h:29</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1GpuResources_html_aa0354aa570c24e17a9f8a6a45b153ed2"><div class="ttname"><a href="classfaiss_1_1gpu_1_1GpuResources.html#aa0354aa570c24e17a9f8a6a45b153ed2">faiss::gpu::GpuResources::getDefaultStreamCurrentDevice</a></div><div class="ttdeci">cudaStream_t getDefaultStreamCurrentDevice()</div><div class="ttdoc">Calls getDefaultStream with the current device. </div><div class="ttdef"><b>Definition:</b> <a href="GpuResources_8cpp_source.html#l00025">GpuResources.cpp:25</a></div></div>
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<div class="ttc" id="structfaiss_1_1gpu_1_1GpuIndexIVFPQConfig_html_ae5b5c7acc06743e5bcca197bc33c30ec"><div class="ttname"><a href="structfaiss_1_1gpu_1_1GpuIndexIVFPQConfig.html#ae5b5c7acc06743e5bcca197bc33c30ec">faiss::gpu::GpuIndexIVFPQConfig::usePrecomputedTables</a></div><div class="ttdeci">bool usePrecomputedTables</div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexIVFPQ_8h_source.html#l00036">GpuIndexIVFPQ.h:36</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexIVFPQ_html_a2b14cbb5acb3fc28a4df8fde3f5567cd"><div class="ttname"><a href="structfaiss_1_1IndexIVFPQ.html#a2b14cbb5acb3fc28a4df8fde3f5567cd">faiss::IndexIVFPQ::polysemous_training</a></div><div class="ttdeci">PolysemousTraining * polysemous_training</div><div class="ttdoc">if NULL, use default </div><div class="ttdef"><b>Definition:</b> <a href="IndexIVFPQ_8h_source.html#l00035">IndexIVFPQ.h:35</a></div></div>
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<div class="ttc" id="structfaiss_1_1ProductQuantizer_html_a13bf69a0dc7b4e45792d10f458e4a92d"><div class="ttname"><a href="structfaiss_1_1ProductQuantizer.html#a13bf69a0dc7b4e45792d10f458e4a92d">faiss::ProductQuantizer::byte_per_idx</a></div><div class="ttdeci">size_t byte_per_idx</div><div class="ttdoc">nb bytes per code component (1 or 2) </div><div class="ttdef"><b>Definition:</b> <a href="ProductQuantizer_8h_source.html#l00033">ProductQuantizer.h:33</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1GpuIndexIVFPQ_html_a56a552e8c2e29f33c39883145bd7629c"><div class="ttname"><a href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#a56a552e8c2e29f33c39883145bd7629c">faiss::gpu::GpuIndexIVFPQ::GpuIndexIVFPQ</a></div><div class="ttdeci">GpuIndexIVFPQ(GpuResources *resources, const faiss::IndexIVFPQ *index, GpuIndexIVFPQConfig config=GpuIndexIVFPQConfig())</div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexIVFPQ_8cu_source.html#l00025">GpuIndexIVFPQ.cu:25</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1IVFBase_html_a4d44e8aebc380b7c846a8d8e6e835540"><div class="ttname"><a href="classfaiss_1_1gpu_1_1IVFBase.html#a4d44e8aebc380b7c846a8d8e6e835540">faiss::gpu::IVFBase::getDim</a></div><div class="ttdeci">int getDim() const </div><div class="ttdoc">Return the number of dimensions we are indexing. </div><div class="ttdef"><b>Definition:</b> <a href="IVFBase_8cu_source.html#l00100">IVFBase.cu:100</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1IVFBase_html_a7b1ee21f9919fb077db5e48e91943582"><div class="ttname"><a href="classfaiss_1_1gpu_1_1IVFBase.html#a7b1ee21f9919fb077db5e48e91943582">faiss::gpu::IVFBase::getListLength</a></div><div class="ttdeci">int getListLength(int listId) const </div><div class="ttdef"><b>Definition:</b> <a href="IVFBase_8cu_source.html#l00200">IVFBase.cu:200</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1GpuIndexFlat_html_a310b00d4443920a855b11276d488c9a7"><div class="ttname"><a href="classfaiss_1_1gpu_1_1GpuIndexFlat.html#a310b00d4443920a855b11276d488c9a7">faiss::gpu::GpuIndexFlat::getGpuData</a></div><div class="ttdeci">FlatIndex * getGpuData()</div><div class="ttdoc">For internal access. </div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexFlat_8h_source.html#l00120">GpuIndexFlat.h:120</a></div></div>
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<div class="ttc" id="structfaiss_1_1Index_html_a8bc5d8d1cd0dd7b34b3c98a9f76b4a9c"><div class="ttname"><a href="structfaiss_1_1Index.html#a8bc5d8d1cd0dd7b34b3c98a9f76b4a9c">faiss::Index::assign</a></div><div class="ttdeci">void assign(idx_t n, const float *x, idx_t *labels, idx_t k=1)</div><div class="ttdef"><b>Definition:</b> <a href="Index_8cpp_source.html#l00023">Index.cpp:23</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1IVFBase_html_a02e1e2d080ee31bf7835f89b9f2a13a9"><div class="ttname"><a href="classfaiss_1_1gpu_1_1IVFBase.html#a02e1e2d080ee31bf7835f89b9f2a13a9">faiss::gpu::IVFBase::reserveMemory</a></div><div class="ttdeci">void reserveMemory(size_t numVecs)</div><div class="ttdoc">Reserve GPU memory in our inverted lists for this number of vectors. </div><div class="ttdef"><b>Definition:</b> <a href="IVFBase_8cu_source.html#l00045">IVFBase.cu:45</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1GpuIndexIVFPQ_html_ab7f77961857e560b4dbb81888a8c8bf8"><div class="ttname"><a href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#ab7f77961857e560b4dbb81888a8c8bf8">faiss::gpu::GpuIndexIVFPQ::getListLength</a></div><div class="ttdeci">int getListLength(int listId) const </div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexIVFPQ_8cu_source.html#l00393">GpuIndexIVFPQ.cu:393</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexIVFPQ_html_a9d5373633df7a9bec4de69400b9adeed"><div class="ttname"><a href="structfaiss_1_1IndexIVFPQ.html#a9d5373633df7a9bec4de69400b9adeed">faiss::IndexIVFPQ::do_polysemous_training</a></div><div class="ttdeci">bool do_polysemous_training</div><div class="ttdoc">reorder PQ centroids after training? </div><div class="ttdef"><b>Definition:</b> <a href="IndexIVFPQ_8h_source.html#l00034">IndexIVFPQ.h:34</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexIVFPQ_html_a7430fc4fa030c96497abced3b68358d4"><div class="ttname"><a href="structfaiss_1_1IndexIVFPQ.html#a7430fc4fa030c96497abced3b68358d4">faiss::IndexIVFPQ::scan_table_threshold</a></div><div class="ttdeci">size_t scan_table_threshold</div><div class="ttdoc">use table computation or on-the-fly? </div><div class="ttdef"><b>Definition:</b> <a href="IndexIVFPQ_8h_source.html#l00038">IndexIVFPQ.h:38</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexIVFPQ_html_a9b310195d610c3e326471b3758206b59"><div class="ttname"><a href="structfaiss_1_1IndexIVFPQ.html#a9b310195d610c3e326471b3758206b59">faiss::IndexIVFPQ::precomputed_table</a></div><div class="ttdeci">std::vector< float > precomputed_table</div><div class="ttdef"><b>Definition:</b> <a href="IndexIVFPQ_8h_source.html#l00045">IndexIVFPQ.h:45</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexIVFPQ_html_a3093a0a3e128eafce6e0583b75e9662e"><div class="ttname"><a href="structfaiss_1_1IndexIVFPQ.html#a3093a0a3e128eafce6e0583b75e9662e">faiss::IndexIVFPQ::polysemous_ht</a></div><div class="ttdeci">int polysemous_ht</div><div class="ttdoc">Hamming thresh for polysemous filtering. </div><div class="ttdef"><b>Definition:</b> <a href="IndexIVFPQ_8h_source.html#l00040">IndexIVFPQ.h:40</a></div></div>
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<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#l00023">GpuResources.h:23</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1GpuIndexIVFPQ_html_af87058de254e1430587a16b76f1e4377"><div class="ttname"><a href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#af87058de254e1430587a16b76f1e4377">faiss::gpu::GpuIndexIVFPQ::getBitsPerCode</a></div><div class="ttdeci">int getBitsPerCode() const </div><div class="ttdoc">Return the number of bits per PQ code. </div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexIVFPQ_8cu_source.html#l00224">GpuIndexIVFPQ.cu:224</a></div></div>
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<div class="ttc" id="structfaiss_1_1gpu_1_1GpuIndexIVFPQConfig_html_a9dbbec78d77d90b7b150f543e477cc49"><div class="ttname"><a href="structfaiss_1_1gpu_1_1GpuIndexIVFPQConfig.html#a9dbbec78d77d90b7b150f543e477cc49">faiss::gpu::GpuIndexIVFPQConfig::useFloat16LookupTables</a></div><div class="ttdeci">bool useFloat16LookupTables</div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexIVFPQ_8h_source.html#l00032">GpuIndexIVFPQ.h:32</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1GpuResources_html_a6c564198df6ba675920c993e2af34b8c"><div class="ttname"><a href="classfaiss_1_1gpu_1_1GpuResources.html#a6c564198df6ba675920c993e2af34b8c">faiss::gpu::GpuResources::getDefaultStream</a></div><div class="ttdeci">virtual cudaStream_t getDefaultStream(int device)=0</div></div>
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<div class="ttc" id="structfaiss_1_1IndexIVF_html_af16d325f5bef22b2e5f90ceea796e80d"><div class="ttname"><a href="structfaiss_1_1IndexIVF.html#af16d325f5bef22b2e5f90ceea796e80d">faiss::IndexIVF::ids</a></div><div class="ttdeci">std::vector< std::vector< long > > ids</div><div class="ttdoc">Inverted lists for indexes. </div><div class="ttdef"><b>Definition:</b> <a href="IndexIVF_8h_source.html#l00062">IndexIVF.h:62</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1GpuIndexIVF_html"><div class="ttname"><a href="classfaiss_1_1gpu_1_1GpuIndexIVF.html">faiss::gpu::GpuIndexIVF</a></div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexIVF_8h_source.html#l00037">GpuIndexIVF.h:37</a></div></div>
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<div class="ttc" id="structfaiss_1_1Index_html_a2a002388d2c081c2dbab8508dcefe73d"><div class="ttname"><a href="structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d">faiss::Index::d</a></div><div class="ttdeci">int d</div><div class="ttdoc">vector dimension </div><div class="ttdef"><b>Definition:</b> <a href="Index_8h_source.html#l00064">Index.h:64</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1GpuIndexIVFPQ_html_ac4814acafa4bc340a4c4bdcafd469b56"><div class="ttname"><a href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#ac4814acafa4bc340a4c4bdcafd469b56">faiss::gpu::GpuIndexIVFPQ::train</a></div><div class="ttdeci">void train(Index::idx_t n, const float *x) override</div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexIVFPQ_8cu_source.html#l00300">GpuIndexIVFPQ.cu:300</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexIVFPQ_html_a77501995b3671e377102d2db1a93ade4"><div class="ttname"><a href="structfaiss_1_1IndexIVFPQ.html#a77501995b3671e377102d2db1a93ade4">faiss::IndexIVFPQ::max_codes</a></div><div class="ttdeci">size_t max_codes</div><div class="ttdoc">max nb of codes to visit to do a query </div><div class="ttdef"><b>Definition:</b> <a href="IndexIVFPQ_8h_source.html#l00039">IndexIVFPQ.h:39</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1IVFPQ_html_adb58eeacdceb0e0fde1820ca7f116e05"><div class="ttname"><a href="classfaiss_1_1gpu_1_1IVFPQ.html#adb58eeacdceb0e0fde1820ca7f116e05">faiss::gpu::IVFPQ::isSupportedPQCodeLength</a></div><div class="ttdeci">static bool isSupportedPQCodeLength(int size)</div><div class="ttdoc">Returns true if we support PQ in this size. </div><div class="ttdef"><b>Definition:</b> <a href="IVFPQ_8cu_source.html#l00072">IVFPQ.cu:72</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1GpuIndexIVFPQ_html_a83831088d9593f753560965172ccb0a0"><div class="ttname"><a href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#a83831088d9593f753560965172ccb0a0">faiss::gpu::GpuIndexIVFPQ::reclaimMemory</a></div><div class="ttdeci">size_t reclaimMemory()</div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexIVFPQ_8cu_source.html#l00234">GpuIndexIVFPQ.cu:234</a></div></div>
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<div class="ttc" id="structfaiss_1_1gpu_1_1GpuIndexIVFPQConfig_html"><div class="ttname"><a href="structfaiss_1_1gpu_1_1GpuIndexIVFPQConfig.html">faiss::gpu::GpuIndexIVFPQConfig</a></div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexIVFPQ_8h_source.html#l00023">GpuIndexIVFPQ.h:23</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#l00029">IndexIVFPQ.h:29</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1GpuIndexIVF_html_a187bdcbbac02bf8fd0e6bb40a1c0426b"><div class="ttname"><a href="classfaiss_1_1gpu_1_1GpuIndexIVF.html#a187bdcbbac02bf8fd0e6bb40a1c0426b">faiss::gpu::GpuIndexIVF::nprobe_</a></div><div class="ttdeci">int nprobe_</div><div class="ttdoc">Number of inverted list probes per query. </div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexIVF_8h_source.html#l00091">GpuIndexIVF.h:91</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1GpuIndexIVFPQ_html_a4e7d62e21f7e23fa4e94c69131389eea"><div class="ttname"><a href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#a4e7d62e21f7e23fa4e94c69131389eea">faiss::gpu::GpuIndexIVFPQ::reserveMemory</a></div><div class="ttdeci">void reserveMemory(size_t numVecs)</div><div class="ttdoc">Reserve GPU memory in our inverted lists for this number of vectors. </div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexIVFPQ_8cu_source.html#l00194">GpuIndexIVFPQ.cu:194</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1IVFPQ_html_ab1e07b04b25569cc58c5f3f033f4dab3"><div class="ttname"><a href="classfaiss_1_1gpu_1_1IVFPQ.html#ab1e07b04b25569cc58c5f3f033f4dab3">faiss::gpu::IVFPQ::classifyAndAddVectors</a></div><div class="ttdeci">int classifyAndAddVectors(Tensor< float, 2, true > &vecs, Tensor< long, 1, true > &indices)</div><div class="ttdef"><b>Definition:</b> <a href="IVFPQ_8cu_source.html#l00120">IVFPQ.cu:120</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1IVFPQ_html_ab0c458aab9a3d903f31b0e63ce16e623"><div class="ttname"><a href="classfaiss_1_1gpu_1_1IVFPQ.html#ab0c458aab9a3d903f31b0e63ce16e623">faiss::gpu::IVFPQ::query</a></div><div class="ttdeci">void query(Tensor< float, 2, true > &queries, int nprobe, int k, Tensor< float, 2, true > &outDistances, Tensor< long, 2, true > &outIndices)</div><div class="ttdef"><b>Definition:</b> <a href="IVFPQ_8cu_source.html#l00516">IVFPQ.cu:516</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1GpuIndex_html_a67750633faa35677ee505a1e61cfe142"><div class="ttname"><a href="classfaiss_1_1gpu_1_1GpuIndex.html#a67750633faa35677ee505a1e61cfe142">faiss::gpu::GpuIndex::device_</a></div><div class="ttdeci">const 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#l00094">GpuIndex.h:94</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1GpuIndexIVFPQ_html_a8d48f79af9080b55706050244fc24f0e"><div class="ttname"><a href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#a8d48f79af9080b55706050244fc24f0e">faiss::gpu::GpuIndexIVFPQ::copyFrom</a></div><div class="ttdeci">void copyFrom(const faiss::IndexIVFPQ *index)</div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexIVFPQ_8cu_source.html#l00080">GpuIndexIVFPQ.cu:80</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1IVFPQ_html_a3e8bff50f894c243c62e832f923e88e7"><div class="ttname"><a href="classfaiss_1_1gpu_1_1IVFPQ.html#a3e8bff50f894c243c62e832f923e88e7">faiss::gpu::IVFPQ::getPQCentroids</a></div><div class="ttdeci">Tensor< float, 3, true > getPQCentroids()</div><div class="ttdef"><b>Definition:</b> <a href="IVFPQ_8cu_source.html#l00591">IVFPQ.cu:591</a></div></div>
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<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#l00091">GpuIndex.h:91</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1GpuIndexIVF_html_a1db0a796b8b2917d989952c5f07fbe55"><div class="ttname"><a href="classfaiss_1_1gpu_1_1GpuIndexIVF.html#a1db0a796b8b2917d989952c5f07fbe55">faiss::gpu::GpuIndexIVF::copyTo</a></div><div class="ttdeci">void copyTo(faiss::IndexIVF *index) const </div><div class="ttdoc">Copy what we have to the CPU equivalent. </div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexIVF_8cu_source.html#l00148">GpuIndexIVF.cu:148</a></div></div>
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<div class="ttc" id="structfaiss_1_1Index_html_a040c6aed1f224f3ea7bf58eebc0c31a4"><div class="ttname"><a href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">faiss::Index::idx_t</a></div><div class="ttdeci">long idx_t</div><div class="ttdoc">all indices are this type </div><div class="ttdef"><b>Definition:</b> <a href="Index_8h_source.html#l00062">Index.h:62</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1GpuIndexIVF_html_aba606c141e714fab843493cc58167494"><div class="ttname"><a href="classfaiss_1_1gpu_1_1GpuIndexIVF.html#aba606c141e714fab843493cc58167494">faiss::gpu::GpuIndexIVF::nlist_</a></div><div class="ttdeci">int nlist_</div><div class="ttdoc">Number of inverted lists that we manage. </div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexIVF_8h_source.html#l00088">GpuIndexIVF.h:88</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1GpuIndexIVFPQ_html_a50e74f0621ca2fe5688825f434ad2bb2"><div class="ttname"><a href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#a50e74f0621ca2fe5688825f434ad2bb2">faiss::gpu::GpuIndexIVFPQ::addImpl_</a></div><div class="ttdeci">void addImpl_(faiss::Index::idx_t n, const float *x, const faiss::Index::idx_t *ids) override</div><div class="ttdoc">Called from GpuIndex for add/add_with_ids. </div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexIVFPQ_8cu_source.html#l00319">GpuIndexIVFPQ.cu:319</a></div></div>
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<div class="ttc" id="structfaiss_1_1Index_html_a6970683faa021b7a6f1a0865c0d4eccd"><div class="ttname"><a href="structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd">faiss::Index::ntotal</a></div><div class="ttdeci">idx_t ntotal</div><div class="ttdoc">total nb of indexed vectors </div><div class="ttdef"><b>Definition:</b> <a href="Index_8h_source.html#l00065">Index.h:65</a></div></div>
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<div class="ttc" id="structfaiss_1_1Index_html_a5590d847c5c2b958affd2a05e58a6f23"><div class="ttname"><a href="structfaiss_1_1Index.html#a5590d847c5c2b958affd2a05e58a6f23">faiss::Index::verbose</a></div><div class="ttdeci">bool verbose</div><div class="ttdoc">verbosity level </div><div class="ttdef"><b>Definition:</b> <a href="Index_8h_source.html#l00066">Index.h:66</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1IVFPQ_html_adcee5dbf48c3cb6b8a67f5f392e155fd"><div class="ttname"><a href="classfaiss_1_1gpu_1_1IVFPQ.html#adcee5dbf48c3cb6b8a67f5f392e155fd">faiss::gpu::IVFPQ::setPrecomputedCodes</a></div><div class="ttdeci">void setPrecomputedCodes(bool enable)</div><div class="ttdoc">Enable or disable pre-computed codes. </div><div class="ttdef"><b>Definition:</b> <a href="IVFPQ_8cu_source.html#l00102">IVFPQ.cu:102</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1IVFPQ_html_a5b349dd021b11b5f48531825359b0657"><div class="ttname"><a href="classfaiss_1_1gpu_1_1IVFPQ.html#a5b349dd021b11b5f48531825359b0657">faiss::gpu::IVFPQ::getListCodes</a></div><div class="ttdeci">std::vector< unsigned char > getListCodes(int listId) const </div><div class="ttdoc">Return the list codes of a particular list back to the CPU. </div><div class="ttdef"><b>Definition:</b> <a href="IVFPQ_8cu_source.html#l00583">IVFPQ.cu:583</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1GpuIndexIVFPQ_html_aad10de2407911e9adf42c1be5c5dd390"><div class="ttname"><a href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#aad10de2407911e9adf42c1be5c5dd390">faiss::gpu::GpuIndexIVFPQ::copyTo</a></div><div class="ttdeci">void copyTo(faiss::IndexIVFPQ *index) const </div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexIVFPQ_8cu_source.html#l00144">GpuIndexIVFPQ.cu:144</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1IVFBase_html_a7ea671876443c93436499ad581f16997"><div class="ttname"><a href="classfaiss_1_1gpu_1_1IVFBase.html#a7ea671876443c93436499ad581f16997">faiss::gpu::IVFBase::reset</a></div><div class="ttdeci">void reset()</div><div class="ttdef"><b>Definition:</b> <a href="IVFBase_8cu_source.html#l00075">IVFBase.cu:75</a></div></div>
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<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#l00065">DeviceUtils.h:65</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1GpuIndex_html_af304169eac7781b573f76d545f37b7d9"><div class="ttname"><a href="classfaiss_1_1gpu_1_1GpuIndex.html#af304169eac7781b573f76d545f37b7d9">faiss::gpu::GpuIndex::memorySpace_</a></div><div class="ttdeci">const MemorySpace memorySpace_</div><div class="ttdoc">The memory space of our primary storage on the GPU. </div><div class="ttdef"><b>Definition:</b> <a href="GpuIndex_8h_source.html#l00097">GpuIndex.h:97</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexIVFPQ_html_afd13b471df293ae5a6e895704c69a4c3"><div class="ttname"><a href="structfaiss_1_1IndexIVFPQ.html#afd13b471df293ae5a6e895704c69a4c3">faiss::IndexIVFPQ::by_residual</a></div><div class="ttdeci">bool by_residual</div><div class="ttdoc">Encode residual or plain vector? </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_1GpuIndexIVF_html_aaa7dd748e3cbd7ef68f2e384ac503eab"><div class="ttname"><a href="classfaiss_1_1gpu_1_1GpuIndexIVF.html#aaa7dd748e3cbd7ef68f2e384ac503eab">faiss::gpu::GpuIndexIVF::quantizer_</a></div><div class="ttdeci">GpuIndexFlat * quantizer_</div><div class="ttdoc">Quantizer for inverted lists. </div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexIVF_8h_source.html#l00094">GpuIndexIVF.h:94</a></div></div>
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<div class="ttc" id="structfaiss_1_1Index_html_a8e18f641854b2bde83ecff0a2f9a6f4e"><div class="ttname"><a href="structfaiss_1_1Index.html#a8e18f641854b2bde83ecff0a2f9a6f4e">faiss::Index::metric_type</a></div><div class="ttdeci">MetricType metric_type</div><div class="ttdoc">type of metric this index uses for search </div><div class="ttdef"><b>Definition:</b> <a href="Index_8h_source.html#l00072">Index.h:72</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexIVFPQ_html_a007303be116c8da65b6d058e3fc77d16"><div class="ttname"><a href="structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16">faiss::IndexIVFPQ::pq</a></div><div class="ttdeci">ProductQuantizer pq</div><div class="ttdoc">produces the codes </div><div class="ttdef"><b>Definition:</b> <a href="IndexIVFPQ_8h_source.html#l00032">IndexIVFPQ.h:32</a></div></div>
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<div class="ttc" id="structfaiss_1_1ProductQuantizer_html_a83600e328893ce5f41fe459f5a3acf41"><div class="ttname"><a href="structfaiss_1_1ProductQuantizer.html#a83600e328893ce5f41fe459f5a3acf41">faiss::ProductQuantizer::M</a></div><div class="ttdeci">size_t M</div><div class="ttdoc">number of subquantizers </div><div class="ttdef"><b>Definition:</b> <a href="ProductQuantizer_8h_source.html#l00028">ProductQuantizer.h:28</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1GpuIndexIVFPQ_html_a3869ea7898487334fb67ee499f38988d"><div class="ttname"><a href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#a3869ea7898487334fb67ee499f38988d">faiss::gpu::GpuIndexIVFPQ::getNumSubQuantizers</a></div><div class="ttdeci">int getNumSubQuantizers() const </div><div class="ttdoc">Return the number of sub-quantizers we are using. </div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexIVFPQ_8cu_source.html#l00219">GpuIndexIVFPQ.cu:219</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1IVFBase_html_a4a4ed220b9433aa788ed32db8f20a9db"><div class="ttname"><a href="classfaiss_1_1gpu_1_1IVFBase.html#a4a4ed220b9433aa788ed32db8f20a9db">faiss::gpu::IVFBase::getListIndices</a></div><div class="ttdeci">std::vector< long > getListIndices(int listId) const </div><div class="ttdoc">Return the list indices of a particular list back to the CPU. </div><div class="ttdef"><b>Definition:</b> <a href="IVFBase_8cu_source.html#l00207">IVFBase.cu:207</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1GpuIndexIVFPQ_html_a2f50e79af6727962cd89534438d4769e"><div class="ttname"><a href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#a2f50e79af6727962cd89534438d4769e">faiss::gpu::GpuIndexIVFPQ::getCentroidsPerSubQuantizer</a></div><div class="ttdeci">int getCentroidsPerSubQuantizer() const </div><div class="ttdoc">Return the number of centroids per PQ code (2^bits per code) </div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexIVFPQ_8cu_source.html#l00229">GpuIndexIVFPQ.cu:229</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1GpuIndexIVFPQ_html_afda2894c0ce520e0d3d06eeca5ed5f0c"><div class="ttname"><a href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#afda2894c0ce520e0d3d06eeca5ed5f0c">faiss::gpu::GpuIndexIVFPQ::setPrecomputedCodes</a></div><div class="ttdeci">void setPrecomputedCodes(bool enable)</div><div class="ttdoc">Enable or disable pre-computed codes. </div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexIVFPQ_8cu_source.html#l00203">GpuIndexIVFPQ.cu:203</a></div></div>
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<div class="ttc" id="structfaiss_1_1ProductQuantizer_html"><div class="ttname"><a href="structfaiss_1_1ProductQuantizer.html">faiss::ProductQuantizer</a></div><div class="ttdef"><b>Definition:</b> <a href="ProductQuantizer_8h_source.html#l00025">ProductQuantizer.h:25</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1GpuIndexIVF_html_a94c2c171f9a2d27085dea9101067bdf2"><div class="ttname"><a href="classfaiss_1_1gpu_1_1GpuIndexIVF.html#a94c2c171f9a2d27085dea9101067bdf2">faiss::gpu::GpuIndexIVF::copyFrom</a></div><div class="ttdeci">void copyFrom(const faiss::IndexIVF *index)</div><div class="ttdoc">Copy what we need from the CPU equivalent. </div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexIVF_8cu_source.html#l00080">GpuIndexIVF.cu:80</a></div></div>
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<div class="ttc" id="structfaiss_1_1Index_html_a6e92732617c4dbe364e7678dd8773a7f"><div class="ttname"><a href="structfaiss_1_1Index.html#a6e92732617c4dbe364e7678dd8773a7f">faiss::Index::is_trained</a></div><div class="ttdeci">bool is_trained</div><div class="ttdoc">set if the Index does not require training, or if training is done already </div><div class="ttdef"><b>Definition:</b> <a href="Index_8h_source.html#l00069">Index.h:69</a></div></div>
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<div class="ttc" id="structfaiss_1_1Index_html_aaae77608bbda70b1098897e9167a82f9"><div class="ttname"><a href="structfaiss_1_1Index.html#aaae77608bbda70b1098897e9167a82f9">faiss::Index::compute_residual</a></div><div class="ttdeci">void compute_residual(const float *x, float *residual, idx_t key) const </div><div class="ttdef"><b>Definition:</b> <a href="Index_8cpp_source.html#l00056">Index.cpp:56</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1GpuIndexIVFPQ_html_a679b0aaa229d571aeb842673e3493cc5"><div class="ttname"><a href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#a679b0aaa229d571aeb842673e3493cc5">faiss::gpu::GpuIndexIVFPQ::getPrecomputedCodes</a></div><div class="ttdeci">bool getPrecomputedCodes() const </div><div class="ttdoc">Are pre-computed codes enabled? </div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexIVFPQ_8cu_source.html#l00214">GpuIndexIVFPQ.cu:214</a></div></div>
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<div class="ttc" id="structfaiss_1_1gpu_1_1GpuIndexIVFConfig_html_af432221761d48e4753f501208a60264d"><div class="ttname"><a href="structfaiss_1_1gpu_1_1GpuIndexIVFConfig.html#af432221761d48e4753f501208a60264d">faiss::gpu::GpuIndexIVFConfig::indicesOptions</a></div><div class="ttdeci">IndicesOptions indicesOptions</div><div class="ttdoc">Index storage options for the GPU. </div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexIVF_8h_source.html#l00031">GpuIndexIVF.h:31</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1IVFBase_html_ac9b69e1b2582cb2c064b5fff60d31cc8"><div class="ttname"><a href="classfaiss_1_1gpu_1_1IVFBase.html#ac9b69e1b2582cb2c064b5fff60d31cc8">faiss::gpu::IVFBase::reclaimMemory</a></div><div class="ttdeci">size_t reclaimMemory()</div><div class="ttdef"><b>Definition:</b> <a href="IVFBase_8cu_source.html#l00105">IVFBase.cu:105</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1IVFPQ_html"><div class="ttname"><a href="classfaiss_1_1gpu_1_1IVFPQ.html">faiss::gpu::IVFPQ</a></div><div class="ttdoc">Implementing class for IVFPQ on the GPU. </div><div class="ttdef"><b>Definition:</b> <a href="IVFPQ_8cuh_source.html#l00019">IVFPQ.cuh:19</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexIVF_html_a46d1aeddb60643c5b3f096147c3e028f"><div class="ttname"><a href="structfaiss_1_1IndexIVF.html#a46d1aeddb60643c5b3f096147c3e028f">faiss::IndexIVF::code_size</a></div><div class="ttdeci">size_t code_size</div><div class="ttdoc">code size per vector in bytes </div><div class="ttdef"><b>Definition:</b> <a href="IndexIVF_8h_source.html#l00064">IndexIVF.h:64</a></div></div>
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<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 version and a L2 search version. </div><div class="ttdef"><b>Definition:</b> <a href="Index_8h_source.html#l00043">Index.h:43</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexIVFPQ_html_a1c66ff073c18a1edbe8444c24d870583"><div class="ttname"><a href="structfaiss_1_1IndexIVFPQ.html#a1c66ff073c18a1edbe8444c24d870583">faiss::IndexIVFPQ::use_precomputed_table</a></div><div class="ttdeci">int use_precomputed_table</div><div class="ttdoc">if by_residual, build precompute tables </div><div class="ttdef"><b>Definition:</b> <a href="IndexIVFPQ_8h_source.html#l00031">IndexIVFPQ.h:31</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1GpuIndexIVFPQ_html_a98f0000872701f9f23ac2073723a0aa7"><div class="ttname"><a href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#a98f0000872701f9f23ac2073723a0aa7">faiss::gpu::GpuIndexIVFPQ::getListCodes</a></div><div class="ttdeci">std::vector< unsigned char > getListCodes(int listId) const </div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexIVFPQ_8cu_source.html#l00399">GpuIndexIVFPQ.cu:399</a></div></div>
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<div class="ttc" id="structfaiss_1_1ProductQuantizer_html_aab1109a29ba0544358e274d727b23cae"><div class="ttname"><a href="structfaiss_1_1ProductQuantizer.html#aab1109a29ba0544358e274d727b23cae">faiss::ProductQuantizer::centroids</a></div><div class="ttdeci">std::vector< float > centroids</div><div class="ttdoc">Centroid table, size M * ksub * dsub. </div><div class="ttdef"><b>Definition:</b> <a href="ProductQuantizer_8h_source.html#l00052">ProductQuantizer.h:52</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1IVFPQ_html_a0eedf0295ad73125ee1254173a176674"><div class="ttname"><a href="classfaiss_1_1gpu_1_1IVFPQ.html#a0eedf0295ad73125ee1254173a176674">faiss::gpu::IVFPQ::isSupportedNoPrecomputedSubDimSize</a></div><div class="ttdeci">static bool isSupportedNoPrecomputedSubDimSize(int dims)</div><div class="ttdef"><b>Definition:</b> <a href="IVFPQ_8cu_source.html#l00097">IVFPQ.cu:97</a></div></div>
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