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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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<li class="navelem"><a class="el" href="dir_6b3ae6988449b0834e9596fad5d75199.html">gpu</a></li> </ul>
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<div class="title">GpuIndexIVF.h</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">#pragma once</span></div>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor"></span></div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#include "GpuIndex.h"</span></div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#include "GpuIndexFlat.h"</span></div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#include "GpuIndicesOptions.h"</span></div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#include "../Clustering.h"</span></div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> </div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="keyword">namespace </span>faiss { <span class="keyword">struct </span>IndexIVF; }</div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> </div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="keyword">namespace </span>faiss { <span class="keyword">namespace </span>gpu {</div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> </div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="keyword">class </span>GpuIndexFlat;</div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="keyword">class </span>GpuResources;</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="structfaiss_1_1gpu_1_1GpuIndexIVFConfig.html"> 25</a></span> <span class="keyword">struct </span><a class="code" href="structfaiss_1_1gpu_1_1GpuIndexIVFConfig.html">GpuIndexIVFConfig</a> : <span class="keyword">public</span> <a class="code" href="structfaiss_1_1gpu_1_1GpuIndexConfig.html">GpuIndexConfig</a> {</div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  <span class="keyword">inline</span> <a class="code" href="structfaiss_1_1gpu_1_1GpuIndexIVFConfig.html">GpuIndexIVFConfig</a>()</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_1GpuIndexIVFConfig.html#af432221761d48e4753f501208a60264d">indicesOptions</a>(INDICES_64_BIT) {</div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  }</div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="comment"></span></div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="comment"> /// Index storage options for the GPU</span></div>
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<div class="line"><a name="l00031"></a><span class="lineno"><a class="line" href="structfaiss_1_1gpu_1_1GpuIndexIVFConfig.html#af432221761d48e4753f501208a60264d"> 31</a></span> <span class="comment"></span> IndicesOptions <a class="code" href="structfaiss_1_1gpu_1_1GpuIndexIVFConfig.html#af432221761d48e4753f501208a60264d">indicesOptions</a>;</div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="comment"></span></div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="comment"> /// Configuration for the coarse quantizer object</span></div>
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<div class="line"><a name="l00034"></a><span class="lineno"><a class="line" href="structfaiss_1_1gpu_1_1GpuIndexIVFConfig.html#a6d357a9a67a2fed9c8e7b139712d30f6"> 34</a></span> <span class="comment"></span> <a class="code" href="structfaiss_1_1gpu_1_1GpuIndexFlatConfig.html">GpuIndexFlatConfig</a> <a class="code" href="structfaiss_1_1gpu_1_1GpuIndexIVFConfig.html#a6d357a9a67a2fed9c8e7b139712d30f6">flatConfig</a>;</div>
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<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> };</div>
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<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> </div>
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<div class="line"><a name="l00037"></a><span class="lineno"><a class="line" href="classfaiss_1_1gpu_1_1GpuIndexIVF.html"> 37</a></span> <span class="keyword">class </span><a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVF.html">GpuIndexIVF</a> : <span class="keyword">public</span> <a class="code" href="classfaiss_1_1gpu_1_1GpuIndex.html">GpuIndex</a> {</div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <span class="keyword">public</span>:</div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVF.html">GpuIndexIVF</a>(<a class="code" href="classfaiss_1_1gpu_1_1GpuResources.html">GpuResources</a>* resources,</div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <span class="keywordtype">int</span> dims,</div>
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<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  <a class="code" href="namespacefaiss.html#afd12191c638da74760ff397cf319752c">faiss::MetricType</a> metric,</div>
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<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <span class="keywordtype">int</span> nlist,</div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <a class="code" href="structfaiss_1_1gpu_1_1GpuIndexIVFConfig.html">GpuIndexIVFConfig</a> config = <a class="code" href="structfaiss_1_1gpu_1_1GpuIndexIVFConfig.html">GpuIndexIVFConfig</a>());</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"> 45</span>  ~<a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVF.html">GpuIndexIVF</a>() <span class="keyword">override</span>;</div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> </div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keyword">private</span>:<span class="comment"></span></div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="comment"> /// Shared initialization functions</span></div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="comment"></span> <span class="keywordtype">void</span> init_();</div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> </div>
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<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keyword">public</span>:<span class="comment"></span></div>
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<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="comment"> /// Copy what we need from the CPU equivalent</span></div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="comment"></span> <span class="keywordtype">void</span> <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVF.html#a94c2c171f9a2d27085dea9101067bdf2">copyFrom</a>(<span class="keyword">const</span> <a class="code" href="structfaiss_1_1IndexIVF.html">faiss::IndexIVF</a>* index);</div>
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<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="comment"></span></div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="comment"> /// Copy what we have to the CPU equivalent</span></div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="comment"></span> <span class="keywordtype">void</span> <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVF.html#a1db0a796b8b2917d989952c5f07fbe55">copyTo</a>(<a class="code" href="structfaiss_1_1IndexIVF.html">faiss::IndexIVF</a>* index) <span class="keyword">const</span>;</div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="comment"></span></div>
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<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="comment"> /// Returns the number of inverted lists we're managing</span></div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="comment"></span> <span class="keywordtype">int</span> <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVF.html#a43a63e93d55b79eac38173f219743ddf">getNumLists</a>() <span class="keyword">const</span>;</div>
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<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="comment"></span></div>
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<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="comment"> /// Return the quantizer we're using</span></div>
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<div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="comment"></span> <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexFlat.html">GpuIndexFlat</a>* <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVF.html#afe6eb789377072b309d7a385aa0d1c5e">getQuantizer</a>();</div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="comment"></span></div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="comment"> /// Sets the number of list probes per query</span></div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="comment"></span> <span class="keywordtype">void</span> <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVF.html#a1efac4b9801d57fa6d0085d6aed9c1f2">setNumProbes</a>(<span class="keywordtype">int</span> nprobe);</div>
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<div class="line"><a name="l00066"></a><span class="lineno"> 66</span> <span class="comment"></span></div>
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<div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="comment"> /// Returns our current number of list probes per query</span></div>
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<div class="line"><a name="l00068"></a><span class="lineno"> 68</span> <span class="comment"></span> <span class="keywordtype">int</span> <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVF.html#a13bce124f8acada641daf60d6edddb33">getNumProbes</a>() <span class="keyword">const</span>;</div>
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<div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <span class="comment"></span></div>
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<div class="line"><a name="l00070"></a><span class="lineno"> 70</span> <span class="comment"> /// `x` can be resident on the CPU or any GPU; the proper copies are</span></div>
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<div class="line"><a name="l00071"></a><span class="lineno"> 71</span> <span class="comment"> /// performed</span></div>
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<div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <span class="comment"> /// Forwards to add_with_ids; assigns IDs as needed</span></div>
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<div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="comment"> /// FIXME: remove override for C++03 compatibility</span></div>
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<div class="line"><a name="l00074"></a><span class="lineno"> 74</span> <span class="comment"></span> <span class="keywordtype">void</span> <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVF.html#ace41857c97a357284acbe4556c9da3da">add</a>(<a class="code" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">Index::idx_t</a> n, <span class="keyword">const</span> <span class="keywordtype">float</span>* x) <span class="keyword">override</span>;</div>
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<div class="line"><a name="l00075"></a><span class="lineno"> 75</span> </div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="keyword">protected</span>:</div>
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<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="keywordtype">void</span> trainQuantizer_(<a class="code" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">faiss::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="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="keyword">public</span>:<span class="comment"></span></div>
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<div class="line"><a name="l00080"></a><span class="lineno"> 80</span> <span class="comment"> /// Exposed as IndexIVF does to allow overriding clustering</span></div>
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<div class="line"><a name="l00081"></a><span class="lineno"> 81</span> <span class="comment"> /// parameters</span></div>
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<div class="line"><a name="l00082"></a><span class="lineno"><a class="line" href="classfaiss_1_1gpu_1_1GpuIndexIVF.html#a520803e209b44c904b876d6b8dad23c9"> 82</a></span> <span class="comment"></span> <a class="code" href="structfaiss_1_1ClusteringParameters.html">ClusteringParameters</a> <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVF.html#a520803e209b44c904b876d6b8dad23c9">cp</a>;</div>
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<div class="line"><a name="l00083"></a><span class="lineno"> 83</span> </div>
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<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="keyword">protected</span>:</div>
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<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <a class="code" href="structfaiss_1_1gpu_1_1GpuIndexIVFConfig.html">GpuIndexIVFConfig</a> ivfConfig_;</div>
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<div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="comment"></span></div>
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<div class="line"><a name="l00087"></a><span class="lineno"> 87</span> <span class="comment"> /// Number of inverted lists that we manage</span></div>
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<div class="line"><a name="l00088"></a><span class="lineno"><a class="line" href="classfaiss_1_1gpu_1_1GpuIndexIVF.html#aba606c141e714fab843493cc58167494"> 88</a></span> <span class="comment"></span> <span class="keywordtype">int</span> <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVF.html#aba606c141e714fab843493cc58167494">nlist_</a>;</div>
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<div class="line"><a name="l00089"></a><span class="lineno"> 89</span> <span class="comment"></span></div>
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<div class="line"><a name="l00090"></a><span class="lineno"> 90</span> <span class="comment"> /// Number of inverted list probes per query</span></div>
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<div class="line"><a name="l00091"></a><span class="lineno"><a class="line" href="classfaiss_1_1gpu_1_1GpuIndexIVF.html#a187bdcbbac02bf8fd0e6bb40a1c0426b"> 91</a></span> <span class="comment"></span> <span class="keywordtype">int</span> <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVF.html#a187bdcbbac02bf8fd0e6bb40a1c0426b">nprobe_</a>;</div>
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<div class="line"><a name="l00092"></a><span class="lineno"> 92</span> <span class="comment"></span></div>
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<div class="line"><a name="l00093"></a><span class="lineno"> 93</span> <span class="comment"> /// Quantizer for inverted lists</span></div>
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<div class="line"><a name="l00094"></a><span class="lineno"><a class="line" href="classfaiss_1_1gpu_1_1GpuIndexIVF.html#aaa7dd748e3cbd7ef68f2e384ac503eab"> 94</a></span> <span class="comment"></span> <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexFlat.html">GpuIndexFlat</a>* <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVF.html#aaa7dd748e3cbd7ef68f2e384ac503eab">quantizer_</a>;</div>
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<div class="line"><a name="l00095"></a><span class="lineno"> 95</span> };</div>
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<div class="line"><a name="l00096"></a><span class="lineno"> 96</span> </div>
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<div class="line"><a name="l00097"></a><span class="lineno"> 97</span> } } <span class="comment">// namespace</span></div>
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<div class="ttc" id="structfaiss_1_1IndexIVF_html"><div class="ttname"><a href="structfaiss_1_1IndexIVF.html">faiss::IndexIVF</a></div><div class="ttdef"><b>Definition:</b> <a href="IndexIVF_8h_source.html#l00045">IndexIVF.h:45</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1GpuIndexIVF_html_a13bce124f8acada641daf60d6edddb33"><div class="ttname"><a href="classfaiss_1_1gpu_1_1GpuIndexIVF.html#a13bce124f8acada641daf60d6edddb33">faiss::gpu::GpuIndexIVF::getNumProbes</a></div><div class="ttdeci">int getNumProbes() const </div><div class="ttdoc">Returns our current number of list probes per query. </div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexIVF_8cu_source.html#l00210">GpuIndexIVF.cu:210</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1GpuIndexIVF_html_a1efac4b9801d57fa6d0085d6aed9c1f2"><div class="ttname"><a href="classfaiss_1_1gpu_1_1GpuIndexIVF.html#a1efac4b9801d57fa6d0085d6aed9c1f2">faiss::gpu::GpuIndexIVF::setNumProbes</a></div><div class="ttdeci">void setNumProbes(int nprobe)</div><div class="ttdoc">Sets the number of list probes per query. </div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexIVF_8cu_source.html#l00202">GpuIndexIVF.cu:202</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1GpuIndexIVF_html_a43a63e93d55b79eac38173f219743ddf"><div class="ttname"><a href="classfaiss_1_1gpu_1_1GpuIndexIVF.html#a43a63e93d55b79eac38173f219743ddf">faiss::gpu::GpuIndexIVF::getNumLists</a></div><div class="ttdeci">int getNumLists() const </div><div class="ttdoc">Returns the number of inverted lists we&#39;re managing. </div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexIVF_8cu_source.html#l00197">GpuIndexIVF.cu:197</a></div></div>
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<div class="ttc" id="structfaiss_1_1gpu_1_1GpuIndexIVFConfig_html"><div class="ttname"><a href="structfaiss_1_1gpu_1_1GpuIndexIVFConfig.html">faiss::gpu::GpuIndexIVFConfig</a></div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexIVF_8h_source.html#l00025">GpuIndexIVF.h:25</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_1GpuIndex_html"><div class="ttname"><a href="classfaiss_1_1gpu_1_1GpuIndex.html">faiss::gpu::GpuIndex</a></div><div class="ttdef"><b>Definition:</b> <a href="GpuIndex_8h_source.html#l00035">GpuIndex.h:35</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_1gpu_1_1GpuIndexFlatConfig_html"><div class="ttname"><a href="structfaiss_1_1gpu_1_1GpuIndexFlatConfig.html">faiss::gpu::GpuIndexFlatConfig</a></div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexFlat_8h_source.html#l00027">GpuIndexFlat.h:27</a></div></div>
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<div class="ttc" id="structfaiss_1_1gpu_1_1GpuIndexIVFConfig_html_a6d357a9a67a2fed9c8e7b139712d30f6"><div class="ttname"><a href="structfaiss_1_1gpu_1_1GpuIndexIVFConfig.html#a6d357a9a67a2fed9c8e7b139712d30f6">faiss::gpu::GpuIndexIVFConfig::flatConfig</a></div><div class="ttdeci">GpuIndexFlatConfig flatConfig</div><div class="ttdoc">Configuration for the coarse quantizer object. </div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexIVF_8h_source.html#l00034">GpuIndexIVF.h:34</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1GpuIndexIVF_html_afe6eb789377072b309d7a385aa0d1c5e"><div class="ttname"><a href="classfaiss_1_1gpu_1_1GpuIndexIVF.html#afe6eb789377072b309d7a385aa0d1c5e">faiss::gpu::GpuIndexIVF::getQuantizer</a></div><div class="ttdeci">GpuIndexFlat * getQuantizer()</div><div class="ttdoc">Return the quantizer we&#39;re using. </div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexIVF_8cu_source.html#l00075">GpuIndexIVF.cu:75</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_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_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_1ClusteringParameters_html"><div class="ttname"><a href="structfaiss_1_1ClusteringParameters.html">faiss::ClusteringParameters</a></div><div class="ttdef"><b>Definition:</b> <a href="Clustering_8h_source.html#l00024">Clustering.h:24</a></div></div>
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<div class="ttc" id="structfaiss_1_1gpu_1_1GpuIndexConfig_html"><div class="ttname"><a href="structfaiss_1_1gpu_1_1GpuIndexConfig.html">faiss::gpu::GpuIndexConfig</a></div><div class="ttdef"><b>Definition:</b> <a href="GpuIndex_8h_source.html#l00020">GpuIndex.h:20</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1GpuIndexFlat_html"><div class="ttname"><a href="classfaiss_1_1gpu_1_1GpuIndexFlat.html">faiss::gpu::GpuIndexFlat</a></div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexFlat_8h_source.html#l00054">GpuIndexFlat.h:54</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="classfaiss_1_1gpu_1_1GpuIndexIVF_html_ace41857c97a357284acbe4556c9da3da"><div class="ttname"><a href="classfaiss_1_1gpu_1_1GpuIndexIVF.html#ace41857c97a357284acbe4556c9da3da">faiss::gpu::GpuIndexIVF::add</a></div><div class="ttdeci">void add(Index::idx_t n, const float *x) override</div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexIVF_8cu_source.html#l00215">GpuIndexIVF.cu:215</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1GpuIndexIVF_html_a520803e209b44c904b876d6b8dad23c9"><div class="ttname"><a href="classfaiss_1_1gpu_1_1GpuIndexIVF.html#a520803e209b44c904b876d6b8dad23c9">faiss::gpu::GpuIndexIVF::cp</a></div><div class="ttdeci">ClusteringParameters cp</div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexIVF_8h_source.html#l00082">GpuIndexIVF.h:82</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="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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