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<li class="navelem"><a class="el" href="dir_5956a3e80a20e8e03eb577bedb92689f.html">gpu</a></li><li class="navelem"><a class="el" href="dir_2be73404b46ec2282840cd36fdb9a907.html">impl</a></li> </ul>
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<div class="title">IVFBase.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) Facebook, Inc. and its affiliates.</span></div>
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<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> *</span></div>
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<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * This source code is licensed under the MIT license found in the</span></div>
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<div class="line"><a name="l00005"></a><span class="lineno"> 5</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="l00006"></a><span class="lineno"> 6</span> <span class="comment"> */</span></div>
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<div class="line"><a name="l00007"></a><span class="lineno"> 7</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="preprocessor">#include "IVFBase.cuh"</span></div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="preprocessor">#include "../GpuResources.h"</span></div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor">#include "FlatIndex.cuh"</span></div>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#include "InvertedListAppend.cuh"</span></div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#include "RemapIndices.h"</span></div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#include "../utils/DeviceDefs.cuh"</span></div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#include "../utils/DeviceUtils.h"</span></div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#include "../utils/HostTensor.cuh"</span></div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#include <limits></span></div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor">#include <thrust/host_vector.h></span></div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#include <unordered_map></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="keyword">namespace </span>faiss { <span class="keyword">namespace </span>gpu {</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"><a class="line" href="classfaiss_1_1gpu_1_1IVFBase.html#a80130acfe0a2a4d387a5c9ee4c386b9c"> 23</a></span> <a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#a80130acfe0a2a4d387a5c9ee4c386b9c">IVFBase::IVFBase</a>(<a class="code" href="classfaiss_1_1gpu_1_1GpuResources.html">GpuResources</a>* resources,</div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  <a class="code" href="classfaiss_1_1gpu_1_1FlatIndex.html">FlatIndex</a>* quantizer,</div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  <span class="keywordtype">int</span> bytesPerVector,</div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  IndicesOptions indicesOptions,</div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  MemorySpace space) :</div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  resources_(resources),</div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  quantizer_(quantizer),</div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  bytesPerVector_(bytesPerVector),</div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  indicesOptions_(indicesOptions),</div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  space_(space),</div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  dim_(quantizer->getDim()),</div>
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<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  numLists_(quantizer->getSize()),</div>
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<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  maxListLength_(0) {</div>
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<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  <a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#a7ea671876443c93436499ad581f16997">reset</a>();</div>
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<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> }</div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> </div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> IVFBase::~IVFBase() {</div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> }</div>
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<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> </div>
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<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="keywordtype">void</span></div>
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<div class="line"><a name="l00043"></a><span class="lineno"><a class="line" href="classfaiss_1_1gpu_1_1IVFBase.html#a02e1e2d080ee31bf7835f89b9f2a13a9"> 43</a></span> <a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#a02e1e2d080ee31bf7835f89b9f2a13a9">IVFBase::reserveMemory</a>(<span class="keywordtype">size_t</span> numVecs) {</div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <span class="keywordtype">size_t</span> vecsPerList = numVecs / <a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#a2facc7285107de1f24d3471cbcf15f26">deviceListData_</a>.size();</div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="keywordflow">if</span> (vecsPerList < 1) {</div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="keywordflow">return</span>;</div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  }</div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> </div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keyword">auto</span> stream = <a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#a05e6400358ec1f529a67209d3f24cc63">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="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="keywordtype">size_t</span> bytesPerDataList = vecsPerList * <a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#a319568b832518392fed33ea4f8bfc613">bytesPerVector_</a>;</div>
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<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="keywordflow">for</span> (<span class="keyword">auto</span>& list : <a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#a2facc7285107de1f24d3471cbcf15f26">deviceListData_</a>) {</div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  list->reserve(bytesPerDataList, stream);</div>
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<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  }</div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> </div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="keywordflow">if</span> ((<a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#afb6d10e23d6448c10f472b9234e0bcab">indicesOptions_</a> == INDICES_32_BIT) ||</div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  (<a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#afb6d10e23d6448c10f472b9234e0bcab">indicesOptions_</a> == INDICES_64_BIT)) {</div>
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<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="comment">// Reserve for index lists as well</span></div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <span class="keywordtype">size_t</span> bytesPerIndexList = vecsPerList *</div>
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<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  (<a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#afb6d10e23d6448c10f472b9234e0bcab">indicesOptions_</a> == INDICES_32_BIT ? <span class="keyword">sizeof</span>(int) : <span class="keyword">sizeof</span>(<span class="keywordtype">long</span>));</div>
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<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> </div>
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<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="keywordflow">for</span> (<span class="keyword">auto</span>& list : deviceListIndices_) {</div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  list->reserve(bytesPerIndexList, stream);</div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  }</div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  }</div>
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<div class="line"><a name="l00066"></a><span class="lineno"> 66</span> </div>
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<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="comment">// Update device info for all lists, since the base pointers may</span></div>
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<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="comment">// have changed</span></div>
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<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#acc695610c9513952b8d234dc0db78e5c">updateDeviceListInfo_</a>(stream);</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> </div>
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<div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <span class="keywordtype">void</span></div>
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<div class="line"><a name="l00073"></a><span class="lineno"><a class="line" href="classfaiss_1_1gpu_1_1IVFBase.html#a7ea671876443c93436499ad581f16997"> 73</a></span> <a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#a7ea671876443c93436499ad581f16997">IVFBase::reset</a>() {</div>
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<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#a2facc7285107de1f24d3471cbcf15f26">deviceListData_</a>.clear();</div>
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<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  deviceListIndices_.clear();</div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#a96240a08b42bd1913e2286d7d514fc56">deviceListDataPointers_</a>.clear();</div>
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<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#a9aedcf0e6a20b908980ae96d73461f4c">deviceListIndexPointers_</a>.clear();</div>
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<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#a3a1c2031a4763f7d55bc8a400c63af66">deviceListLengths_</a>.clear();</div>
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<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#a53f3c382a79b7f89630a85dfbc3a1fed">listOffsetToUserIndex_</a>.clear();</div>
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<div class="line"><a name="l00080"></a><span class="lineno"> 80</span> </div>
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<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i < <a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#accc4d96c14643e5f471220cb1e92ac70">numLists_</a>; ++i) {</div>
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<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#a2facc7285107de1f24d3471cbcf15f26">deviceListData_</a>.emplace_back(</div>
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<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  std::unique_ptr<<a class="code" href="classfaiss_1_1gpu_1_1DeviceVector.html">DeviceVector<unsigned char></a>>(</div>
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<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="keyword">new</span> <a class="code" href="classfaiss_1_1gpu_1_1DeviceVector.html">DeviceVector<unsigned char></a>(<a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#a30499eb61763df72cab25ea9d1235251">space_</a>)));</div>
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<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  deviceListIndices_.emplace_back(</div>
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<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  std::unique_ptr<<a class="code" href="classfaiss_1_1gpu_1_1DeviceVector.html">DeviceVector<unsigned char></a>>(</div>
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<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="keyword">new</span> <a class="code" href="classfaiss_1_1gpu_1_1DeviceVector.html">DeviceVector<unsigned char></a>(<a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#a30499eb61763df72cab25ea9d1235251">space_</a>)));</div>
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<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#a53f3c382a79b7f89630a85dfbc3a1fed">listOffsetToUserIndex_</a>.emplace_back(std::vector<long>());</div>
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<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  }</div>
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<div class="line"><a name="l00090"></a><span class="lineno"> 90</span> </div>
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<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#a96240a08b42bd1913e2286d7d514fc56">deviceListDataPointers_</a>.resize(numLists_, <span class="keyword">nullptr</span>);</div>
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<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#a9aedcf0e6a20b908980ae96d73461f4c">deviceListIndexPointers_</a>.resize(numLists_, <span class="keyword">nullptr</span>);</div>
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<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#a3a1c2031a4763f7d55bc8a400c63af66">deviceListLengths_</a>.resize(numLists_, 0);</div>
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<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#ae25ea0901fb628844868413f51c85bda">maxListLength_</a> = 0;</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="keywordtype">int</span></div>
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<div class="line"><a name="l00098"></a><span class="lineno"><a class="line" href="classfaiss_1_1gpu_1_1IVFBase.html#a4d44e8aebc380b7c846a8d8e6e835540"> 98</a></span> <a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#a4d44e8aebc380b7c846a8d8e6e835540">IVFBase::getDim</a>()<span class="keyword"> const </span>{</div>
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<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <span class="keywordflow">return</span> <a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#aba3e3cfa469e5187f2d553fff10e0250">dim_</a>;</div>
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<div class="line"><a name="l00100"></a><span class="lineno"> 100</span> }</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="keywordtype">size_t</span></div>
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<div class="line"><a name="l00103"></a><span class="lineno"><a class="line" href="classfaiss_1_1gpu_1_1IVFBase.html#ac9b69e1b2582cb2c064b5fff60d31cc8"> 103</a></span> <a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#ac9b69e1b2582cb2c064b5fff60d31cc8">IVFBase::reclaimMemory</a>() {</div>
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<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="comment">// Reclaim all unused memory exactly</span></div>
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<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="keywordflow">return</span> <a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#aa02d69306544294521e79be7f81a21cb">reclaimMemory_</a>(<span class="keyword">true</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> </div>
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<div class="line"><a name="l00108"></a><span class="lineno"> 108</span> <span class="keywordtype">size_t</span></div>
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<div class="line"><a name="l00109"></a><span class="lineno"><a class="line" href="classfaiss_1_1gpu_1_1IVFBase.html#aa02d69306544294521e79be7f81a21cb"> 109</a></span> <a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#aa02d69306544294521e79be7f81a21cb">IVFBase::reclaimMemory_</a>(<span class="keywordtype">bool</span> exact) {</div>
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<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <span class="keyword">auto</span> stream = <a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#a05e6400358ec1f529a67209d3f24cc63">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="l00111"></a><span class="lineno"> 111</span> </div>
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<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <span class="keywordtype">size_t</span> totalReclaimed = 0;</div>
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<div class="line"><a name="l00113"></a><span class="lineno"> 113</span> </div>
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<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < <a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#a2facc7285107de1f24d3471cbcf15f26">deviceListData_</a>.size(); ++i) {</div>
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<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <span class="keyword">auto</span>& data = <a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#a2facc7285107de1f24d3471cbcf15f26">deviceListData_</a>[i];</div>
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<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  totalReclaimed += data->reclaim(exact, stream);</div>
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<div class="line"><a name="l00117"></a><span class="lineno"> 117</span> </div>
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<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#a96240a08b42bd1913e2286d7d514fc56">deviceListDataPointers_</a>[i] = data->data();</div>
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<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  }</div>
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<div class="line"><a name="l00120"></a><span class="lineno"> 120</span> </div>
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<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < deviceListIndices_.size(); ++i) {</div>
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<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="keyword">auto</span>& indices = deviceListIndices_[i];</div>
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<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  totalReclaimed += indices->reclaim(exact, stream);</div>
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<div class="line"><a name="l00124"></a><span class="lineno"> 124</span> </div>
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<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#a9aedcf0e6a20b908980ae96d73461f4c">deviceListIndexPointers_</a>[i] = indices->data();</div>
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<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  }</div>
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<div class="line"><a name="l00127"></a><span class="lineno"> 127</span> </div>
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<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <span class="comment">// Update device info for all lists, since the base pointers may</span></div>
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<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="comment">// have changed</span></div>
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<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#acc695610c9513952b8d234dc0db78e5c">updateDeviceListInfo_</a>(stream);</div>
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<div class="line"><a name="l00131"></a><span class="lineno"> 131</span> </div>
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<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="keywordflow">return</span> totalReclaimed;</div>
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<div class="line"><a name="l00133"></a><span class="lineno"> 133</span> }</div>
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<div class="line"><a name="l00134"></a><span class="lineno"> 134</span> </div>
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<div class="line"><a name="l00135"></a><span class="lineno"> 135</span> <span class="keywordtype">void</span></div>
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<div class="line"><a name="l00136"></a><span class="lineno"><a class="line" href="classfaiss_1_1gpu_1_1IVFBase.html#acc695610c9513952b8d234dc0db78e5c"> 136</a></span> <a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#acc695610c9513952b8d234dc0db78e5c">IVFBase::updateDeviceListInfo_</a>(cudaStream_t stream) {</div>
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<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  std::vector<int> listIds(<a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#a2facc7285107de1f24d3471cbcf15f26">deviceListData_</a>.size());</div>
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<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < <a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#a2facc7285107de1f24d3471cbcf15f26">deviceListData_</a>.size(); ++i) {</div>
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<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  listIds[i] = i;</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>  <a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#acc695610c9513952b8d234dc0db78e5c">updateDeviceListInfo_</a>(listIds, stream);</div>
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<div class="line"><a name="l00143"></a><span class="lineno"> 143</span> }</div>
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<div class="line"><a name="l00144"></a><span class="lineno"> 144</span> </div>
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<div class="line"><a name="l00145"></a><span class="lineno"> 145</span> <span class="keywordtype">void</span></div>
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<div class="line"><a name="l00146"></a><span class="lineno"><a class="line" href="classfaiss_1_1gpu_1_1IVFBase.html#ae90724e307bbfe49554a2ab77fbd1764"> 146</a></span> <a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#acc695610c9513952b8d234dc0db78e5c">IVFBase::updateDeviceListInfo_</a>(<span class="keyword">const</span> std::vector<int>& listIds,</div>
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<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  cudaStream_t stream) {</div>
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|
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <span class="keyword">auto</span>& mem = <a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#a05e6400358ec1f529a67209d3f24cc63">resources_</a>-><a class="code" href="classfaiss_1_1gpu_1_1GpuResources.html#a1dda2dc3db1bd62cde6657c5cdbfb6e1">getMemoryManagerCurrentDevice</a>();</div>
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<div class="line"><a name="l00149"></a><span class="lineno"> 149</span> </div>
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<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <a class="code" href="classfaiss_1_1gpu_1_1HostTensor.html">HostTensor<int, 1, true></a></div>
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<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  hostListsToUpdate({(int) listIds.size()});</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_1HostTensor.html">HostTensor<int, 1, true></a></div>
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<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  hostNewListLength({(int) listIds.size()});</div>
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<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <a class="code" href="classfaiss_1_1gpu_1_1HostTensor.html">HostTensor<void*, 1, true></a></div>
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<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  hostNewDataPointers({(int) listIds.size()});</div>
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<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <a class="code" href="classfaiss_1_1gpu_1_1HostTensor.html">HostTensor<void*, 1, true></a></div>
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<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  hostNewIndexPointers({(int) listIds.size()});</div>
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<div class="line"><a name="l00158"></a><span class="lineno"> 158</span> </div>
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<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < listIds.size(); ++i) {</div>
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<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  <span class="keyword">auto</span> listId = listIds[i];</div>
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|
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <span class="keyword">auto</span>& data = <a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#a2facc7285107de1f24d3471cbcf15f26">deviceListData_</a>[listId];</div>
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<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="keyword">auto</span>& indices = deviceListIndices_[listId];</div>
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<div class="line"><a name="l00163"></a><span class="lineno"> 163</span> </div>
|
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<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  hostListsToUpdate[i] = listId;</div>
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<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  hostNewListLength[i] = data->size() / <a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#a319568b832518392fed33ea4f8bfc613">bytesPerVector_</a>;</div>
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<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  hostNewDataPointers[i] = data->data();</div>
|
|
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  hostNewIndexPointers[i] = indices->data();</div>
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<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  }</div>
|
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<div class="line"><a name="l00169"></a><span class="lineno"> 169</span> </div>
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<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  <span class="comment">// Copy the above update sets to the GPU</span></div>
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|
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <a class="code" href="classfaiss_1_1gpu_1_1DeviceTensor.html">DeviceTensor<int, 1, true></a> listsToUpdate(</div>
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<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  mem, hostListsToUpdate, stream);</div>
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<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  <a class="code" href="classfaiss_1_1gpu_1_1DeviceTensor.html">DeviceTensor<int, 1, true></a> newListLength(</div>
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<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  mem, hostNewListLength, stream);</div>
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<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  <a class="code" href="classfaiss_1_1gpu_1_1DeviceTensor.html">DeviceTensor<void*, 1, true></a> newDataPointers(</div>
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<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  mem, hostNewDataPointers, stream);</div>
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<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  <a class="code" href="classfaiss_1_1gpu_1_1DeviceTensor.html">DeviceTensor<void*, 1, true></a> newIndexPointers(</div>
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<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  mem, hostNewIndexPointers, stream);</div>
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<div class="line"><a name="l00179"></a><span class="lineno"> 179</span> </div>
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<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  <span class="comment">// Update all pointers to the lists on the device that may have</span></div>
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|
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  <span class="comment">// changed</span></div>
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<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  runUpdateListPointers(listsToUpdate,</div>
|
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<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  newListLength,</div>
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<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  newDataPointers,</div>
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<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  newIndexPointers,</div>
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<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#a3a1c2031a4763f7d55bc8a400c63af66">deviceListLengths_</a>,</div>
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<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  <a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#a96240a08b42bd1913e2286d7d514fc56">deviceListDataPointers_</a>,</div>
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<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  <a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#a9aedcf0e6a20b908980ae96d73461f4c">deviceListIndexPointers_</a>,</div>
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<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  stream);</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> <span class="keywordtype">size_t</span></div>
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<div class="line"><a name="l00193"></a><span class="lineno"><a class="line" href="classfaiss_1_1gpu_1_1IVFBase.html#abd66dc9d32e6150b930d78f74d7dd2d7"> 193</a></span> <a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#abd66dc9d32e6150b930d78f74d7dd2d7">IVFBase::getNumLists</a>()<span class="keyword"> const </span>{</div>
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<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  <span class="keywordflow">return</span> <a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#accc4d96c14643e5f471220cb1e92ac70">numLists_</a>;</div>
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<div class="line"><a name="l00195"></a><span class="lineno"> 195</span> }</div>
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<div class="line"><a name="l00196"></a><span class="lineno"> 196</span> </div>
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<div class="line"><a name="l00197"></a><span class="lineno"> 197</span> <span class="keywordtype">int</span></div>
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<div class="line"><a name="l00198"></a><span class="lineno"><a class="line" href="classfaiss_1_1gpu_1_1IVFBase.html#a7b1ee21f9919fb077db5e48e91943582"> 198</a></span> <a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#a7b1ee21f9919fb077db5e48e91943582">IVFBase::getListLength</a>(<span class="keywordtype">int</span> listId)<span class="keyword"> const </span>{</div>
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<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  FAISS_ASSERT(listId < <a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#a3a1c2031a4763f7d55bc8a400c63af66">deviceListLengths_</a>.size());</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>  <span class="keywordflow">return</span> <a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#a3a1c2031a4763f7d55bc8a400c63af66">deviceListLengths_</a>[listId];</div>
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<div class="line"><a name="l00202"></a><span class="lineno"> 202</span> }</div>
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<div class="line"><a name="l00203"></a><span class="lineno"> 203</span> </div>
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<div class="line"><a name="l00204"></a><span class="lineno"> 204</span> std::vector<long></div>
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<div class="line"><a name="l00205"></a><span class="lineno"><a class="line" href="classfaiss_1_1gpu_1_1IVFBase.html#a4a4ed220b9433aa788ed32db8f20a9db"> 205</a></span> <a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#a4a4ed220b9433aa788ed32db8f20a9db">IVFBase::getListIndices</a>(<span class="keywordtype">int</span> listId)<span class="keyword"> const </span>{</div>
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<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  FAISS_ASSERT(listId < <a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#accc4d96c14643e5f471220cb1e92ac70">numLists_</a>);</div>
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<div class="line"><a name="l00207"></a><span class="lineno"> 207</span> </div>
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<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  <span class="keywordflow">if</span> (<a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#afb6d10e23d6448c10f472b9234e0bcab">indicesOptions_</a> == INDICES_32_BIT) {</div>
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|
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  FAISS_ASSERT(listId < deviceListIndices_.size());</div>
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<div class="line"><a name="l00210"></a><span class="lineno"> 210</span> </div>
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<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  <span class="keyword">auto</span> intInd = deviceListIndices_[listId]->copyToHost<<span class="keywordtype">int</span>>(</div>
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<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  <a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#a05e6400358ec1f529a67209d3f24cc63">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="l00213"></a><span class="lineno"> 213</span> </div>
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<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  std::vector<long> out(intInd.size());</div>
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<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i < intInd.size(); ++i) {</div>
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<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  out[i] = (long) intInd[i];</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> </div>
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<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  <span class="keywordflow">return</span> out;</div>
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<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (<a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#afb6d10e23d6448c10f472b9234e0bcab">indicesOptions_</a> == INDICES_64_BIT) {</div>
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<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  FAISS_ASSERT(listId < deviceListIndices_.size());</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="keywordflow">return</span> deviceListIndices_[listId]->copyToHost<<span class="keywordtype">long</span>>(</div>
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<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  <a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#a05e6400358ec1f529a67209d3f24cc63">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="l00225"></a><span class="lineno"> 225</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (<a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#afb6d10e23d6448c10f472b9234e0bcab">indicesOptions_</a> == INDICES_CPU) {</div>
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<div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  FAISS_ASSERT(listId < <a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#a2facc7285107de1f24d3471cbcf15f26">deviceListData_</a>.size());</div>
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<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  FAISS_ASSERT(listId < <a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#a53f3c382a79b7f89630a85dfbc3a1fed">listOffsetToUserIndex_</a>.size());</div>
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<div class="line"><a name="l00228"></a><span class="lineno"> 228</span> </div>
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<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  <span class="keyword">auto</span>& userIds = <a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#a53f3c382a79b7f89630a85dfbc3a1fed">listOffsetToUserIndex_</a>[listId];</div>
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<div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  FAISS_ASSERT(userIds.size() ==</div>
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<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  <a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#a2facc7285107de1f24d3471cbcf15f26">deviceListData_</a>[listId]->size() / <a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#a319568b832518392fed33ea4f8bfc613">bytesPerVector_</a>);</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="comment">// this will return a copy</span></div>
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<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  <span class="keywordflow">return</span> userIds;</div>
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<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  } <span class="keywordflow">else</span> {</div>
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<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  <span class="comment">// unhandled indices type (includes INDICES_IVF)</span></div>
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<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  FAISS_ASSERT(<span class="keyword">false</span>);</div>
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<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  <span class="keywordflow">return</span> std::vector<long>();</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> }</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> <span class="keywordtype">void</span></div>
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<div class="line"><a name="l00243"></a><span class="lineno"><a class="line" href="classfaiss_1_1gpu_1_1IVFBase.html#a5027720549de98f4e609d6339099df35"> 243</a></span> <a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#a5027720549de98f4e609d6339099df35">IVFBase::addIndicesFromCpu_</a>(<span class="keywordtype">int</span> listId,</div>
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<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  <span class="keyword">const</span> <span class="keywordtype">long</span>* indices,</div>
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<div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  <span class="keywordtype">size_t</span> numVecs) {</div>
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<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  <span class="keyword">auto</span> stream = <a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#a05e6400358ec1f529a67209d3f24cc63">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="l00247"></a><span class="lineno"> 247</span> </div>
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<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  <span class="keyword">auto</span>& listIndices = deviceListIndices_[listId];</div>
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<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  <span class="keyword">auto</span> prevIndicesData = listIndices->data();</div>
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<div class="line"><a name="l00250"></a><span class="lineno"> 250</span> </div>
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<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  <span class="keywordflow">if</span> (<a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#afb6d10e23d6448c10f472b9234e0bcab">indicesOptions_</a> == INDICES_32_BIT) {</div>
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<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  <span class="comment">// Make sure that all indices are in bounds</span></div>
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<div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  std::vector<int> indices32(numVecs);</div>
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<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i < numVecs; ++i) {</div>
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<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  <span class="keyword">auto</span> ind = indices[i];</div>
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<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  FAISS_ASSERT(ind <= (<span class="keywordtype">long</span>) std::numeric_limits<int>::max());</div>
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<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  indices32[i] = (int) ind;</div>
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<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  }</div>
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<div class="line"><a name="l00259"></a><span class="lineno"> 259</span> </div>
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<div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  listIndices->append((<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>*) indices32.data(),</div>
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<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  numVecs * <span class="keyword">sizeof</span>(int),</div>
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<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  stream,</div>
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<div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  <span class="keyword">true</span> <span class="comment">/* exact reserved size */</span>);</div>
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<div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (<a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#afb6d10e23d6448c10f472b9234e0bcab">indicesOptions_</a> == INDICES_64_BIT) {</div>
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<div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  listIndices->append((<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>*) indices,</div>
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<div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  numVecs * <span class="keyword">sizeof</span>(<span class="keywordtype">long</span>),</div>
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<div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  stream,</div>
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<div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  <span class="keyword">true</span> <span class="comment">/* exact reserved size */</span>);</div>
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<div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (<a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#afb6d10e23d6448c10f472b9234e0bcab">indicesOptions_</a> == INDICES_CPU) {</div>
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<div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  <span class="comment">// indices are stored on the CPU</span></div>
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<div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  FAISS_ASSERT(listId < <a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#a53f3c382a79b7f89630a85dfbc3a1fed">listOffsetToUserIndex_</a>.size());</div>
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<div class="line"><a name="l00272"></a><span class="lineno"> 272</span> </div>
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<div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  <span class="keyword">auto</span>& userIndices = <a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#a53f3c382a79b7f89630a85dfbc3a1fed">listOffsetToUserIndex_</a>[listId];</div>
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<div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  userIndices.insert(userIndices.begin(), indices, indices + numVecs);</div>
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<div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  } <span class="keywordflow">else</span> {</div>
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<div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  <span class="comment">// indices are not stored</span></div>
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<div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  FAISS_ASSERT(<a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#afb6d10e23d6448c10f472b9234e0bcab">indicesOptions_</a> == INDICES_IVF);</div>
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<div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  }</div>
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<div class="line"><a name="l00279"></a><span class="lineno"> 279</span> </div>
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<div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  <span class="keywordflow">if</span> (prevIndicesData != listIndices->data()) {</div>
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<div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  <a class="code" href="classfaiss_1_1gpu_1_1IVFBase.html#a9aedcf0e6a20b908980ae96d73461f4c">deviceListIndexPointers_</a>[listId] = listIndices->data();</div>
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<div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  }</div>
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<div class="line"><a name="l00283"></a><span class="lineno"> 283</span> }</div>
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<div class="line"><a name="l00284"></a><span class="lineno"> 284</span> </div>
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<div class="line"><a name="l00285"></a><span class="lineno"> 285</span> } } <span class="comment">// namespace</span></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1IVFBase_html_accc4d96c14643e5f471220cb1e92ac70"><div class="ttname"><a href="classfaiss_1_1gpu_1_1IVFBase.html#accc4d96c14643e5f471220cb1e92ac70">faiss::gpu::IVFBase::numLists_</a></div><div class="ttdeci">const int numLists_</div><div class="ttdoc">Number of inverted lists we maintain. </div><div class="ttdef"><b>Definition:</b> <a href="IVFBase_8cuh_source.html#l00089">IVFBase.cuh:89</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1IVFBase_html_ae25ea0901fb628844868413f51c85bda"><div class="ttname"><a href="classfaiss_1_1gpu_1_1IVFBase.html#ae25ea0901fb628844868413f51c85bda">faiss::gpu::IVFBase::maxListLength_</a></div><div class="ttdeci">int maxListLength_</div><div class="ttdoc">Maximum list length seen. </div><div class="ttdef"><b>Definition:</b> <a href="IVFBase_8cuh_source.html#l00113">IVFBase.cuh:113</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#l00023">GpuResources.cpp:23</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1IVFBase_html_a80130acfe0a2a4d387a5c9ee4c386b9c"><div class="ttname"><a href="classfaiss_1_1gpu_1_1IVFBase.html#a80130acfe0a2a4d387a5c9ee4c386b9c">faiss::gpu::IVFBase::IVFBase</a></div><div class="ttdeci">IVFBase(GpuResources *resources, FlatIndex *quantizer, int bytesPerVector, IndicesOptions indicesOptions, MemorySpace space)</div><div class="ttdef"><b>Definition:</b> <a href="IVFBase_8cu_source.html#l00023">IVFBase.cu:23</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1IVFBase_html_a53f3c382a79b7f89630a85dfbc3a1fed"><div class="ttname"><a href="classfaiss_1_1gpu_1_1IVFBase.html#a53f3c382a79b7f89630a85dfbc3a1fed">faiss::gpu::IVFBase::listOffsetToUserIndex_</a></div><div class="ttdeci">std::vector< std::vector< long > > listOffsetToUserIndex_</div><div class="ttdef"><b>Definition:</b> <a href="IVFBase_8cuh_source.html#l00125">IVFBase.cuh:125</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1FlatIndex_html"><div class="ttname"><a href="classfaiss_1_1gpu_1_1FlatIndex.html">faiss::gpu::FlatIndex</a></div><div class="ttdoc">Holder of GPU resources for a particular flat index. </div><div class="ttdef"><b>Definition:</b> <a href="FlatIndex_8cuh_source.html#l00021">FlatIndex.cuh:21</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#l00098">IVFBase.cu:98</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#l00198">IVFBase.cu:198</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#l00043">IVFBase.cu:43</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1IVFBase_html_aa02d69306544294521e79be7f81a21cb"><div class="ttname"><a href="classfaiss_1_1gpu_1_1IVFBase.html#aa02d69306544294521e79be7f81a21cb">faiss::gpu::IVFBase::reclaimMemory_</a></div><div class="ttdeci">size_t reclaimMemory_(bool exact)</div><div class="ttdef"><b>Definition:</b> <a href="IVFBase_8cu_source.html#l00109">IVFBase.cu:109</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#l00021">GpuResources.h:21</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1DeviceVector_html"><div class="ttname"><a href="classfaiss_1_1gpu_1_1DeviceVector.html">faiss::gpu::DeviceVector</a></div><div class="ttdef"><b>Definition:</b> <a href="DeviceVector_8cuh_source.html#l00026">DeviceVector.cuh:26</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1IVFBase_html_a3a1c2031a4763f7d55bc8a400c63af66"><div class="ttname"><a href="classfaiss_1_1gpu_1_1IVFBase.html#a3a1c2031a4763f7d55bc8a400c63af66">faiss::gpu::IVFBase::deviceListLengths_</a></div><div class="ttdeci">thrust::device_vector< int > deviceListLengths_</div><div class="ttdef"><b>Definition:</b> <a href="IVFBase_8cuh_source.html#l00110">IVFBase.cuh:110</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1IVFBase_html_a9aedcf0e6a20b908980ae96d73461f4c"><div class="ttname"><a href="classfaiss_1_1gpu_1_1IVFBase.html#a9aedcf0e6a20b908980ae96d73461f4c">faiss::gpu::IVFBase::deviceListIndexPointers_</a></div><div class="ttdeci">thrust::device_vector< void * > deviceListIndexPointers_</div><div class="ttdef"><b>Definition:</b> <a href="IVFBase_8cuh_source.html#l00106">IVFBase.cuh:106</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1GpuResources_html_a1dda2dc3db1bd62cde6657c5cdbfb6e1"><div class="ttname"><a href="classfaiss_1_1gpu_1_1GpuResources.html#a1dda2dc3db1bd62cde6657c5cdbfb6e1">faiss::gpu::GpuResources::getMemoryManagerCurrentDevice</a></div><div class="ttdeci">DeviceMemory & getMemoryManagerCurrentDevice()</div><div class="ttdoc">Calls getMemoryManager for the current device. </div><div class="ttdef"><b>Definition:</b> <a href="GpuResources_8cpp_source.html#l00033">GpuResources.cpp:33</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1IVFBase_html_a96240a08b42bd1913e2286d7d514fc56"><div class="ttname"><a href="classfaiss_1_1gpu_1_1IVFBase.html#a96240a08b42bd1913e2286d7d514fc56">faiss::gpu::IVFBase::deviceListDataPointers_</a></div><div class="ttdeci">thrust::device_vector< void * > deviceListDataPointers_</div><div class="ttdef"><b>Definition:</b> <a href="IVFBase_8cuh_source.html#l00102">IVFBase.cuh:102</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#l00073">IVFBase.cu:73</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1IVFBase_html_a05e6400358ec1f529a67209d3f24cc63"><div class="ttname"><a href="classfaiss_1_1gpu_1_1IVFBase.html#a05e6400358ec1f529a67209d3f24cc63">faiss::gpu::IVFBase::resources_</a></div><div class="ttdeci">GpuResources * resources_</div><div class="ttdoc">Collection of GPU resources that we use. </div><div class="ttdef"><b>Definition:</b> <a href="IVFBase_8cuh_source.html#l00080">IVFBase.cuh:80</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1IVFBase_html_a319568b832518392fed33ea4f8bfc613"><div class="ttname"><a href="classfaiss_1_1gpu_1_1IVFBase.html#a319568b832518392fed33ea4f8bfc613">faiss::gpu::IVFBase::bytesPerVector_</a></div><div class="ttdeci">const int bytesPerVector_</div><div class="ttdoc">Number of bytes per vector in the list. </div><div class="ttdef"><b>Definition:</b> <a href="IVFBase_8cuh_source.html#l00092">IVFBase.cuh:92</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1IVFBase_html_acc695610c9513952b8d234dc0db78e5c"><div class="ttname"><a href="classfaiss_1_1gpu_1_1IVFBase.html#acc695610c9513952b8d234dc0db78e5c">faiss::gpu::IVFBase::updateDeviceListInfo_</a></div><div class="ttdeci">void updateDeviceListInfo_(cudaStream_t stream)</div><div class="ttdoc">Update all device-side list pointer and size information. </div><div class="ttdef"><b>Definition:</b> <a href="IVFBase_8cu_source.html#l00136">IVFBase.cu:136</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#l00205">IVFBase.cu:205</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1IVFBase_html_afb6d10e23d6448c10f472b9234e0bcab"><div class="ttname"><a href="classfaiss_1_1gpu_1_1IVFBase.html#afb6d10e23d6448c10f472b9234e0bcab">faiss::gpu::IVFBase::indicesOptions_</a></div><div class="ttdeci">const IndicesOptions indicesOptions_</div><div class="ttdoc">How are user indices stored on the GPU? </div><div class="ttdef"><b>Definition:</b> <a href="IVFBase_8cuh_source.html#l00095">IVFBase.cuh:95</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1HostTensor_html"><div class="ttname"><a href="classfaiss_1_1gpu_1_1HostTensor.html">faiss::gpu::HostTensor</a></div><div class="ttdef"><b>Definition:</b> <a href="HostTensor_8cuh_source.html#l00020">HostTensor.cuh:20</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1IVFBase_html_a30499eb61763df72cab25ea9d1235251"><div class="ttname"><a href="classfaiss_1_1gpu_1_1IVFBase.html#a30499eb61763df72cab25ea9d1235251">faiss::gpu::IVFBase::space_</a></div><div class="ttdeci">const MemorySpace space_</div><div class="ttdoc">What memory space our inverted list storage is in. </div><div class="ttdef"><b>Definition:</b> <a href="IVFBase_8cuh_source.html#l00098">IVFBase.cuh:98</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1IVFBase_html_a2facc7285107de1f24d3471cbcf15f26"><div class="ttname"><a href="classfaiss_1_1gpu_1_1IVFBase.html#a2facc7285107de1f24d3471cbcf15f26">faiss::gpu::IVFBase::deviceListData_</a></div><div class="ttdeci">std::vector< std::unique_ptr< DeviceVector< unsigned char > > > deviceListData_</div><div class="ttdef"><b>Definition:</b> <a href="IVFBase_8cuh_source.html#l00119">IVFBase.cuh:119</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1DeviceTensor_html"><div class="ttname"><a href="classfaiss_1_1gpu_1_1DeviceTensor.html">faiss::gpu::DeviceTensor</a></div><div class="ttdef"><b>Definition:</b> <a href="DeviceTensor_8cuh_source.html#l00022">DeviceTensor.cuh:22</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1IVFBase_html_aba3e3cfa469e5187f2d553fff10e0250"><div class="ttname"><a href="classfaiss_1_1gpu_1_1IVFBase.html#aba3e3cfa469e5187f2d553fff10e0250">faiss::gpu::IVFBase::dim_</a></div><div class="ttdeci">const int dim_</div><div class="ttdoc">Expected dimensionality of the vectors. </div><div class="ttdef"><b>Definition:</b> <a href="IVFBase_8cuh_source.html#l00086">IVFBase.cuh:86</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1IVFBase_html_a5027720549de98f4e609d6339099df35"><div class="ttname"><a href="classfaiss_1_1gpu_1_1IVFBase.html#a5027720549de98f4e609d6339099df35">faiss::gpu::IVFBase::addIndicesFromCpu_</a></div><div class="ttdeci">void addIndicesFromCpu_(int listId, const long *indices, size_t numVecs)</div><div class="ttdoc">Shared function to copy indices from CPU to GPU. </div><div class="ttdef"><b>Definition:</b> <a href="IVFBase_8cu_source.html#l00243">IVFBase.cu:243</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#l00103">IVFBase.cu:103</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1IVFBase_html_abd66dc9d32e6150b930d78f74d7dd2d7"><div class="ttname"><a href="classfaiss_1_1gpu_1_1IVFBase.html#abd66dc9d32e6150b930d78f74d7dd2d7">faiss::gpu::IVFBase::getNumLists</a></div><div class="ttdeci">size_t getNumLists() const </div><div class="ttdoc">Returns the number of inverted lists. </div><div class="ttdef"><b>Definition:</b> <a href="IVFBase_8cu_source.html#l00193">IVFBase.cu:193</a></div></div>
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