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<div class="title">/data/users/hoss/faiss/MetaIndexes.cpp</div> </div>
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</div><!--header-->
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<div class="contents">
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/**</span></div>
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<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * 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> <span class="comment">// -*- c++ -*-</span></div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> </div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="preprocessor">#include "MetaIndexes.h"</span></div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> </div>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#include <cstdio></span></div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> </div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#include "FaissAssert.h"</span></div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#include "Heap.h"</span></div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#include "AuxIndexStructures.h"</span></div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#include "WorkerThread.h"</span></div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> </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 {</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">namespace </span>{</div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> </div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="keyword">typedef</span> <a class="code" href="structfaiss_1_1Index.html#ad3f0d3071f987baabbdd3da4500c87ea">Index::idx_t</a> idx_t;</div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> </div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> } <span class="comment">// namespace</span></div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> </div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="comment">/*****************************************************</span></div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="comment"> * IndexIDMap implementation</span></div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="comment"> *******************************************************/</span></div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> </div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> IndexIDMap::IndexIDMap (Index *index):</div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  index (index),</div>
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<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  own_fields (false)</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>  FAISS_THROW_IF_NOT_MSG (index->ntotal == 0, <span class="stringliteral">"index must be empty on input"</span>);</div>
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<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  is_trained = index->is_trained;</div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  metric_type = index->metric_type;</div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  verbose = index->verbose;</div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  d = index->d;</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> </div>
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<div class="line"><a name="l00043"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexIDMap.html#a16cce6c1e83d0d5f069c9b0399896450"> 43</a></span> <span class="keywordtype">void</span> <a class="code" href="structfaiss_1_1IndexIDMap.html#a16cce6c1e83d0d5f069c9b0399896450">IndexIDMap::add</a> (<a class="code" href="structfaiss_1_1Index.html#ad3f0d3071f987baabbdd3da4500c87ea">idx_t</a>, <span class="keyword">const</span> <span class="keywordtype">float</span> *)</div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> {</div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  FAISS_THROW_MSG (<span class="stringliteral">"add does not make sense with IndexIDMap, "</span></div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="stringliteral">"use add_with_ids"</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> </div>
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<div class="line"><a name="l00050"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexIDMap.html#ac873cb03aa323a06dca5d6f3af5fe559"> 50</a></span> <span class="keywordtype">void</span> <a class="code" href="structfaiss_1_1IndexIDMap.html#ac873cb03aa323a06dca5d6f3af5fe559">IndexIDMap::train</a> (<a class="code" href="structfaiss_1_1Index.html#ad3f0d3071f987baabbdd3da4500c87ea">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="l00051"></a><span class="lineno"> 51</span> {</div>
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<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  index->train (n, x);</div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  is_trained = index->is_trained;</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"><a class="line" href="structfaiss_1_1IndexIDMap.html#a70aca5b0f665c5a109d5dadf1e13b448"> 56</a></span> <span class="keywordtype">void</span> <a class="code" href="structfaiss_1_1IndexIDMap.html#a70aca5b0f665c5a109d5dadf1e13b448">IndexIDMap::reset</a> ()</div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> {</div>
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<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  index->reset ();</div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  id_map.clear();</div>
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<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  ntotal = 0;</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> </div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> </div>
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<div class="line"><a name="l00064"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexIDMap.html#aeace75e53648c052d05c357b744e090b"> 64</a></span> <span class="keywordtype">void</span> <a class="code" href="structfaiss_1_1IndexIDMap.html#aeace75e53648c052d05c357b744e090b">IndexIDMap::add_with_ids</a> (<a class="code" href="structfaiss_1_1Index.html#ad3f0d3071f987baabbdd3da4500c87ea">idx_t</a> n, <span class="keyword">const</span> <span class="keywordtype">float</span> * x, <span class="keyword">const</span> <span class="keywordtype">long</span> *xids)</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>  index->add (n, x);</div>
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<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keywordflow">for</span> (<a class="code" href="structfaiss_1_1Index.html#ad3f0d3071f987baabbdd3da4500c87ea">idx_t</a> i = 0; i < n; i++)</div>
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<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  id_map.push_back (xids[i]);</div>
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<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  ntotal = index->ntotal;</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> </div>
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<div class="line"><a name="l00073"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexIDMap.html#a2f36fa9150a465b48952afbba856e2a1"> 73</a></span> <span class="keywordtype">void</span> <a class="code" href="structfaiss_1_1IndexIDMap.html#a2f36fa9150a465b48952afbba856e2a1">IndexIDMap::search</a> (<a class="code" href="structfaiss_1_1Index.html#ad3f0d3071f987baabbdd3da4500c87ea">idx_t</a> n, <span class="keyword">const</span> <span class="keywordtype">float</span> *x, <a class="code" href="structfaiss_1_1Index.html#ad3f0d3071f987baabbdd3da4500c87ea">idx_t</a> k,</div>
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<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="keywordtype">float</span> *distances, <a class="code" href="structfaiss_1_1Index.html#ad3f0d3071f987baabbdd3da4500c87ea">idx_t</a> *labels)<span class="keyword"> const</span></div>
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<div class="line"><a name="l00075"></a><span class="lineno"> 75</span> <span class="keyword"></span>{</div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  index->search (n, x, k, distances, labels);</div>
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<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <a class="code" href="structfaiss_1_1Index.html#ad3f0d3071f987baabbdd3da4500c87ea">idx_t</a> *li = labels;</div>
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<div class="line"><a name="l00078"></a><span class="lineno"> 78</span> <span class="preprocessor">#pragma omp parallel for</span></div>
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<div class="line"><a name="l00079"></a><span class="lineno"> 79</span> <span class="preprocessor"></span> <span class="keywordflow">for</span> (<a class="code" href="structfaiss_1_1Index.html#ad3f0d3071f987baabbdd3da4500c87ea">idx_t</a> i = 0; i < n * k; i++) {</div>
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<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  li[i] = li[i] < 0 ? li[i] : id_map[li[i]];</div>
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<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  }</div>
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<div class="line"><a name="l00082"></a><span class="lineno"> 82</span> }</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> </div>
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<div class="line"><a name="l00085"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexIDMap.html#a7dbeaf9d44d6783d371f12405e8b7f40"> 85</a></span> <span class="keywordtype">void</span> <a class="code" href="structfaiss_1_1IndexIDMap.html#a7dbeaf9d44d6783d371f12405e8b7f40">IndexIDMap::range_search</a> (<a class="code" href="structfaiss_1_1Index.html#ad3f0d3071f987baabbdd3da4500c87ea">idx_t</a> n, <span class="keyword">const</span> <span class="keywordtype">float</span> *x, <span class="keywordtype">float</span> radius,</div>
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<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <a class="code" href="structfaiss_1_1RangeSearchResult.html">RangeSearchResult</a> *result)<span class="keyword"> const</span></div>
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<div class="line"><a name="l00087"></a><span class="lineno"> 87</span> <span class="keyword"></span>{</div>
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<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  index->range_search(n, x, radius, result);</div>
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<div class="line"><a name="l00089"></a><span class="lineno"> 89</span> <span class="preprocessor">#pragma omp parallel for</span></div>
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<div class="line"><a name="l00090"></a><span class="lineno"> 90</span> <span class="preprocessor"></span> <span class="keywordflow">for</span> (<a class="code" href="structfaiss_1_1Index.html#ad3f0d3071f987baabbdd3da4500c87ea">idx_t</a> i = 0; i < result-><a class="code" href="structfaiss_1_1RangeSearchResult.html#aef57f9db99ca470c01bcdce0366cb6ff">lims</a>[result-><a class="code" href="structfaiss_1_1RangeSearchResult.html#a29269b98c33af874d379ca4f62408b90">nq</a>]; i++) {</div>
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<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  result-><a class="code" href="structfaiss_1_1RangeSearchResult.html#aa8ff848474a4cc16c5464cc4ec187824">labels</a>[i] = result-><a class="code" href="structfaiss_1_1RangeSearchResult.html#aa8ff848474a4cc16c5464cc4ec187824">labels</a>[i] < 0 ?</div>
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<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  result-><a class="code" href="structfaiss_1_1RangeSearchResult.html#aa8ff848474a4cc16c5464cc4ec187824">labels</a>[i] : id_map[result-><a class="code" href="structfaiss_1_1RangeSearchResult.html#aa8ff848474a4cc16c5464cc4ec187824">labels</a>[i]];</div>
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<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  }</div>
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<div class="line"><a name="l00094"></a><span class="lineno"> 94</span> }</div>
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<div class="line"><a name="l00095"></a><span class="lineno"> 95</span> </div>
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<div class="line"><a name="l00096"></a><span class="lineno"> 96</span> <span class="keyword">namespace </span>{</div>
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<div class="line"><a name="l00097"></a><span class="lineno"> 97</span> </div>
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<div class="line"><a name="l00098"></a><span class="lineno"> 98</span> <span class="keyword">struct </span>IDTranslatedSelector: <a class="code" href="structfaiss_1_1IDSelector.html">IDSelector</a> {</div>
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<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <span class="keyword">const</span> std::vector <long> & id_map;</div>
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<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <span class="keyword">const</span> <a class="code" href="structfaiss_1_1IDSelector.html">IDSelector</a> & sel;</div>
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<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  IDTranslatedSelector (<span class="keyword">const</span> std::vector <long> & id_map,</div>
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<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="keyword">const</span> <a class="code" href="structfaiss_1_1IDSelector.html">IDSelector</a> & sel):</div>
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<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  id_map (id_map), sel (sel)</div>
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<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  {}</div>
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<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="keywordtype">bool</span> is_member(idx_t <span class="keywordtype">id</span>)<span class="keyword"> const override </span>{</div>
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<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="keywordflow">return</span> sel.is_member(id_map[<span class="keywordtype">id</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> };</div>
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<div class="line"><a name="l00109"></a><span class="lineno"> 109</span> </div>
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<div class="line"><a name="l00110"></a><span class="lineno"> 110</span> }</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"><a class="line" href="structfaiss_1_1IndexIDMap.html#a699ca4891bf3a437b2a182c04d33d9b9"> 112</a></span> <span class="keywordtype">long</span> <a class="code" href="structfaiss_1_1IndexIDMap.html#a699ca4891bf3a437b2a182c04d33d9b9">IndexIDMap::remove_ids</a> (<span class="keyword">const</span> <a class="code" href="structfaiss_1_1IDSelector.html">IDSelector</a> & sel)</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="comment">// remove in sub-index first</span></div>
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<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  IDTranslatedSelector sel2 (id_map, sel);</div>
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<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="keywordtype">long</span> nremove = index->remove_ids (sel2);</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>  <span class="keywordtype">long</span> j = 0;</div>
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<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="keywordflow">for</span> (<a class="code" href="structfaiss_1_1Index.html#ad3f0d3071f987baabbdd3da4500c87ea">idx_t</a> i = 0; i < ntotal; i++) {</div>
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<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="keywordflow">if</span> (sel.is_member (id_map[i])) {</div>
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<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="comment">// remove</span></div>
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<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  } <span class="keywordflow">else</span> {</div>
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<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  id_map[j] = id_map[i];</div>
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<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  j++;</div>
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<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  }</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>  FAISS_ASSERT (j == index->ntotal);</div>
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<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  ntotal = j;</div>
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<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  id_map.resize(ntotal);</div>
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<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <span class="keywordflow">return</span> nremove;</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> </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> </div>
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<div class="line"><a name="l00136"></a><span class="lineno"> 136</span> IndexIDMap::~IndexIDMap ()</div>
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<div class="line"><a name="l00137"></a><span class="lineno"> 137</span> {</div>
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<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  <span class="keywordflow">if</span> (own_fields) <span class="keyword">delete</span> index;</div>
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<div class="line"><a name="l00139"></a><span class="lineno"> 139</span> }</div>
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<div class="line"><a name="l00140"></a><span class="lineno"> 140</span> </div>
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<div class="line"><a name="l00141"></a><span class="lineno"> 141</span> <span class="comment">/*****************************************************</span></div>
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<div class="line"><a name="l00142"></a><span class="lineno"> 142</span> <span class="comment"> * IndexIDMap2 implementation</span></div>
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<div class="line"><a name="l00143"></a><span class="lineno"> 143</span> <span class="comment"> *******************************************************/</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> IndexIDMap2::IndexIDMap2 (Index *index): IndexIDMap (index)</div>
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<div class="line"><a name="l00146"></a><span class="lineno"> 146</span> {}</div>
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<div class="line"><a name="l00147"></a><span class="lineno"> 147</span> </div>
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<div class="line"><a name="l00148"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexIDMap2.html#a33ff76975891695c2fa45ed26fc8eae9"> 148</a></span> <span class="keywordtype">void</span> <a class="code" href="structfaiss_1_1IndexIDMap2.html#a33ff76975891695c2fa45ed26fc8eae9">IndexIDMap2::add_with_ids</a>(idx_t n, <span class="keyword">const</span> <span class="keywordtype">float</span>* x, <span class="keyword">const</span> <span class="keywordtype">long</span>* xids)</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>  <span class="keywordtype">size_t</span> prev_ntotal = <a class="code" href="structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd">ntotal</a>;</div>
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<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <a class="code" href="structfaiss_1_1IndexIDMap.html#aeace75e53648c052d05c357b744e090b">IndexIDMap::add_with_ids</a> (n, x, xids);</div>
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<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = prev_ntotal; i < <a class="code" href="structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd">ntotal</a>; i++) {</div>
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<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  rev_map [<a class="code" href="structfaiss_1_1IndexIDMap.html#ad1cc5658f1879f6a2b00d76cca58cf3b">id_map</a> [i]] = i;</div>
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<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  }</div>
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<div class="line"><a name="l00155"></a><span class="lineno"> 155</span> }</div>
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<div class="line"><a name="l00156"></a><span class="lineno"> 156</span> </div>
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<div class="line"><a name="l00157"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexIDMap2.html#a646302669189e370d9d864fc18f096fe"> 157</a></span> <span class="keywordtype">void</span> <a class="code" href="structfaiss_1_1IndexIDMap2.html#a646302669189e370d9d864fc18f096fe">IndexIDMap2::construct_rev_map</a> ()</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>  rev_map.clear ();</div>
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<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i < <a class="code" href="structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd">ntotal</a>; i++) {</div>
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<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  rev_map [<a class="code" href="structfaiss_1_1IndexIDMap.html#ad1cc5658f1879f6a2b00d76cca58cf3b">id_map</a> [i]] = i;</div>
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<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  }</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> </div>
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<div class="line"><a name="l00165"></a><span class="lineno"> 165</span> </div>
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<div class="line"><a name="l00166"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexIDMap2.html#a87e313ebc8dd62fb734a61a6d95a98f0"> 166</a></span> <span class="keywordtype">long</span> <a class="code" href="structfaiss_1_1IndexIDMap2.html#a87e313ebc8dd62fb734a61a6d95a98f0">IndexIDMap2::remove_ids</a>(<span class="keyword">const</span> <a class="code" href="structfaiss_1_1IDSelector.html">IDSelector</a>& sel)</div>
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<div class="line"><a name="l00167"></a><span class="lineno"> 167</span> {</div>
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<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  <span class="comment">// This is quite inefficient</span></div>
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|
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  <span class="keywordtype">long</span> nremove = <a class="code" href="structfaiss_1_1IndexIDMap.html#a699ca4891bf3a437b2a182c04d33d9b9">IndexIDMap::remove_ids</a> (sel);</div>
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<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  <a class="code" href="structfaiss_1_1IndexIDMap2.html#a646302669189e370d9d864fc18f096fe">construct_rev_map</a> ();</div>
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|
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <span class="keywordflow">return</span> nremove;</div>
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<div class="line"><a name="l00172"></a><span class="lineno"> 172</span> }</div>
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<div class="line"><a name="l00173"></a><span class="lineno"> 173</span> </div>
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<div class="line"><a name="l00174"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexIDMap2.html#a3660adb35a3299bc328988f5ff2199fe"> 174</a></span> <span class="keywordtype">void</span> <a class="code" href="structfaiss_1_1IndexIDMap2.html#a3660adb35a3299bc328988f5ff2199fe">IndexIDMap2::reconstruct</a> (idx_t key, <span class="keywordtype">float</span> * recons)<span class="keyword"> const</span></div>
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<div class="line"><a name="l00175"></a><span class="lineno"> 175</span> <span class="keyword"></span>{</div>
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<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <span class="keywordflow">try</span> {</div>
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<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  index-><a class="code" href="structfaiss_1_1Index.html#aaef6f4132b1f390121ebb11058baf190">reconstruct</a> (rev_map.at (key), recons);</div>
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<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  } <span class="keywordflow">catch</span> (<span class="keyword">const</span> std::out_of_range& e) {</div>
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<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  FAISS_THROW_FMT (<span class="stringliteral">"key %ld not found"</span>, key);</div>
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<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  }</div>
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<div class="line"><a name="l00181"></a><span class="lineno"> 181</span> }</div>
|
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<div class="line"><a name="l00182"></a><span class="lineno"> 182</span> </div>
|
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<div class="line"><a name="l00183"></a><span class="lineno"> 183</span> <span class="comment">/*****************************************************</span></div>
|
|
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span> <span class="comment"> * IndexSplitVectors implementation</span></div>
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|
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span> <span class="comment"> *******************************************************/</span></div>
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<div class="line"><a name="l00186"></a><span class="lineno"> 186</span> </div>
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<div class="line"><a name="l00187"></a><span class="lineno"> 187</span> </div>
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<div class="line"><a name="l00188"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexSplitVectors.html#a70ba3367a08722fe4466dc49c21a4d2b"> 188</a></span> <a class="code" href="structfaiss_1_1IndexSplitVectors.html#a70ba3367a08722fe4466dc49c21a4d2b">IndexSplitVectors::IndexSplitVectors</a> (<a class="code" href="structfaiss_1_1Index.html#ad3f0d3071f987baabbdd3da4500c87ea">idx_t</a> d, <span class="keywordtype">bool</span> threaded):</div>
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<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  <a class="code" href="structfaiss_1_1Index.html">Index</a> (d), own_fields (false),</div>
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<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  threaded (threaded), sum_d (0)</div>
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<div class="line"><a name="l00191"></a><span class="lineno"> 191</span> {</div>
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<div class="line"><a name="l00192"></a><span class="lineno"> 192</span> </div>
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<div class="line"><a name="l00193"></a><span class="lineno"> 193</span> }</div>
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<div class="line"><a name="l00194"></a><span class="lineno"> 194</span> </div>
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<div class="line"><a name="l00195"></a><span class="lineno"> 195</span> <span class="keywordtype">void</span> IndexSplitVectors::add_sub_index (<a class="code" href="structfaiss_1_1Index.html">Index</a> *index)</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>  sub_indexes.push_back (index);</div>
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<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  sync_with_sub_indexes ();</div>
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<div class="line"><a name="l00199"></a><span class="lineno"> 199</span> }</div>
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<div class="line"><a name="l00200"></a><span class="lineno"> 200</span> </div>
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<div class="line"><a name="l00201"></a><span class="lineno"> 201</span> <span class="keywordtype">void</span> IndexSplitVectors::sync_with_sub_indexes ()</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>  <span class="keywordflow">if</span> (sub_indexes.empty()) <span class="keywordflow">return</span>;</div>
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<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  Index * index0 = sub_indexes[0];</div>
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<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  sum_d = index0->d;</div>
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<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  <a class="code" href="structfaiss_1_1Index.html#a8e18f641854b2bde83ecff0a2f9a6f4e">metric_type</a> = index0->metric_type;</div>
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<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  <a class="code" href="structfaiss_1_1Index.html#a6e92732617c4dbe364e7678dd8773a7f">is_trained</a> = index0->is_trained;</div>
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<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  <a class="code" href="structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd">ntotal</a> = index0->ntotal;</div>
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<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 1; i < sub_indexes.size(); i++) {</div>
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<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  Index * index = sub_indexes[i];</div>
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<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  FAISS_THROW_IF_NOT (<a class="code" href="structfaiss_1_1Index.html#a8e18f641854b2bde83ecff0a2f9a6f4e">metric_type</a> == index->metric_type);</div>
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<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  FAISS_THROW_IF_NOT (<a class="code" href="structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd">ntotal</a> == index->ntotal);</div>
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<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  sum_d += index->d;</div>
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<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  }</div>
|
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<div class="line"><a name="l00215"></a><span class="lineno"> 215</span> </div>
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<div class="line"><a name="l00216"></a><span class="lineno"> 216</span> }</div>
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<div class="line"><a name="l00217"></a><span class="lineno"> 217</span> </div>
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<div class="line"><a name="l00218"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexSplitVectors.html#af2ef88dc72b4a94f1190ecc8cb25881b"> 218</a></span> <span class="keywordtype">void</span> <a class="code" href="structfaiss_1_1IndexSplitVectors.html#af2ef88dc72b4a94f1190ecc8cb25881b">IndexSplitVectors::add</a>(<a class="code" href="structfaiss_1_1Index.html#ad3f0d3071f987baabbdd3da4500c87ea">idx_t</a> <span class="comment">/*n*/</span>, <span class="keyword">const</span> <span class="keywordtype">float</span>* <span class="comment">/*x*/</span>) {</div>
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<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  FAISS_THROW_MSG(<span class="stringliteral">"not implemented"</span>);</div>
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<div class="line"><a name="l00220"></a><span class="lineno"> 220</span> }</div>
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<div class="line"><a name="l00221"></a><span class="lineno"> 221</span> </div>
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<div class="line"><a name="l00222"></a><span class="lineno"> 222</span> </div>
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<div class="line"><a name="l00223"></a><span class="lineno"> 223</span> </div>
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<div class="line"><a name="l00224"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexSplitVectors.html#a4a010daf51e44d9717e94400cc23c159"> 224</a></span> <span class="keywordtype">void</span> <a class="code" href="structfaiss_1_1IndexSplitVectors.html#a4a010daf51e44d9717e94400cc23c159">IndexSplitVectors::search</a> (</div>
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<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  <a class="code" href="structfaiss_1_1Index.html#ad3f0d3071f987baabbdd3da4500c87ea">idx_t</a> n, <span class="keyword">const</span> <span class="keywordtype">float</span> *x, <a class="code" href="structfaiss_1_1Index.html#ad3f0d3071f987baabbdd3da4500c87ea">idx_t</a> k,</div>
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<div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  <span class="keywordtype">float</span> *distances, <a class="code" href="structfaiss_1_1Index.html#ad3f0d3071f987baabbdd3da4500c87ea">idx_t</a> *labels)<span class="keyword"> const</span></div>
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<div class="line"><a name="l00227"></a><span class="lineno"> 227</span> <span class="keyword"></span>{</div>
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<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  FAISS_THROW_IF_NOT_MSG (k == 1,</div>
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|
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  <span class="stringliteral">"search implemented only for k=1"</span>);</div>
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<div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  FAISS_THROW_IF_NOT_MSG (sum_d == <a class="code" href="structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d">d</a>,</div>
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<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  <span class="stringliteral">"not enough indexes compared to # dimensions"</span>);</div>
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<div class="line"><a name="l00232"></a><span class="lineno"> 232</span> </div>
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<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  <span class="keywordtype">long</span> nshard = sub_indexes.size();</div>
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<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  <span class="keywordtype">float</span> *all_distances = <span class="keyword">new</span> <span class="keywordtype">float</span> [nshard * k * n];</div>
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<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  <a class="code" href="structfaiss_1_1Index.html#ad3f0d3071f987baabbdd3da4500c87ea">idx_t</a> *all_labels = <span class="keyword">new</span> <a class="code" href="structfaiss_1_1Index.html#ad3f0d3071f987baabbdd3da4500c87ea">idx_t</a> [nshard * k * n];</div>
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<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  <a class="code" href="structfaiss_1_1ScopeDeleter.html">ScopeDeleter<float></a> del (all_distances);</div>
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<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  <a class="code" href="structfaiss_1_1ScopeDeleter.html">ScopeDeleter<idx_t></a> del2 (all_labels);</div>
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<div class="line"><a name="l00238"></a><span class="lineno"> 238</span> </div>
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<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  <span class="keyword">auto</span> query_func = [n, x, k, distances, labels, all_distances, all_labels, <span class="keyword">this</span>]</div>
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<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  (<span class="keywordtype">int</span> no) {</div>
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<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  <span class="keyword">const</span> <a class="code" href="structfaiss_1_1IndexSplitVectors.html">IndexSplitVectors</a> *index = <span class="keyword">this</span>;</div>
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<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  <span class="keywordtype">float</span> *distances1 = no == 0 ? distances : all_distances + no * k * n;</div>
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<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  <a class="code" href="structfaiss_1_1Index.html#ad3f0d3071f987baabbdd3da4500c87ea">idx_t</a> *labels1 = no == 0 ? labels : all_labels + no * k * n;</div>
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<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  <span class="keywordflow">if</span> (index-><a class="code" href="structfaiss_1_1Index.html#a5590d847c5c2b958affd2a05e58a6f23">verbose</a>)</div>
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<div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  printf (<span class="stringliteral">"begin query shard %d on %ld points\n"</span>, no, n);</div>
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<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  <span class="keyword">const</span> <a class="code" href="structfaiss_1_1Index.html">Index</a> * sub_index = index->sub_indexes[no];</div>
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<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  <span class="keywordtype">long</span> sub_d = sub_index-><a class="code" href="structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d">d</a>, <a class="code" href="structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d">d</a> = index-><a class="code" href="structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d">d</a>;</div>
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<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  <a class="code" href="structfaiss_1_1Index.html#ad3f0d3071f987baabbdd3da4500c87ea">idx_t</a> ofs = 0;</div>
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<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < no; i++) ofs += index->sub_indexes[i]->d;</div>
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<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  <span class="keywordtype">float</span> *sub_x = <span class="keyword">new</span> <span class="keywordtype">float</span> [sub_d * n];</div>
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<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  <a class="code" href="structfaiss_1_1ScopeDeleter.html">ScopeDeleter<float></a> del1 (sub_x);</div>
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<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  <span class="keywordflow">for</span> (<a class="code" href="structfaiss_1_1Index.html#ad3f0d3071f987baabbdd3da4500c87ea">idx_t</a> i = 0; i < n; i++)</div>
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<div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  memcpy (sub_x + i * sub_d, x + ofs + i * <a class="code" href="structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d">d</a>, sub_d * <span class="keyword">sizeof</span> (sub_x));</div>
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<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  sub_index-><a class="code" href="structfaiss_1_1Index.html#aced51b1ebc33c47ab3ae15ea906559a7">search</a> (n, sub_x, k, distances1, labels1);</div>
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<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  <span class="keywordflow">if</span> (index-><a class="code" href="structfaiss_1_1Index.html#a5590d847c5c2b958affd2a05e58a6f23">verbose</a>)</div>
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<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  printf (<span class="stringliteral">"end query shard %d\n"</span>, no);</div>
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<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  };</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>  <span class="keywordflow">if</span> (!threaded) {</div>
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<div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < nshard; i++) {</div>
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<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  query_func(i);</div>
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<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  }</div>
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<div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  } <span class="keywordflow">else</span> {</div>
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<div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  std::vector<std::unique_ptr<WorkerThread> > threads;</div>
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<div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  std::vector<std::future<bool>> v;</div>
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<div class="line"><a name="l00266"></a><span class="lineno"> 266</span> </div>
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<div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < nshard; i++) {</div>
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<div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  threads.emplace_back(<span class="keyword">new</span> <a class="code" href="classfaiss_1_1WorkerThread.html">WorkerThread</a>());</div>
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<div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  <a class="code" href="classfaiss_1_1WorkerThread.html">WorkerThread</a> *wt = threads.back().get();</div>
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<div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  v.emplace_back(wt-><a class="code" href="classfaiss_1_1WorkerThread.html#a484b472c878bb35e4fed5f5ec6733d79">add</a>([i, query_func](){query_func(i); }));</div>
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<div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  }</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="comment">// Blocking wait for completion</span></div>
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<div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  <span class="keywordflow">for</span> (<span class="keyword">auto</span>& func : v) {</div>
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<div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  func.get();</div>
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<div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  }</div>
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<div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  }</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>  <span class="keywordtype">long</span> factor = 1;</div>
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<div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < nshard; i++) {</div>
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<div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  <span class="keywordflow">if</span> (i > 0) { <span class="comment">// results of 0 are already in the table</span></div>
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<div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  <span class="keyword">const</span> <span class="keywordtype">float</span> *distances_i = all_distances + i * k * n;</div>
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<div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  <span class="keyword">const</span> idx_t *labels_i = all_labels + i * k * n;</div>
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<div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  <span class="keywordflow">for</span> (<span class="keywordtype">long</span> j = 0; j < n; j++) {</div>
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<div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  <span class="keywordflow">if</span> (labels[j] >= 0 && labels_i[j] >= 0) {</div>
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<div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  labels[j] += labels_i[j] * factor;</div>
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<div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  distances[j] += distances_i[j];</div>
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<div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  } <span class="keywordflow">else</span> {</div>
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<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  labels[j] = -1;</div>
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<div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  distances[j] = 0.0 / 0.0;</div>
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<div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  }</div>
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<div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  }</div>
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<div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  }</div>
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<div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  factor *= sub_indexes[i]->ntotal;</div>
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<div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  }</div>
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<div class="line"><a name="l00296"></a><span class="lineno"> 296</span> </div>
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<div class="line"><a name="l00297"></a><span class="lineno"> 297</span> }</div>
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<div class="line"><a name="l00298"></a><span class="lineno"> 298</span> </div>
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<div class="line"><a name="l00299"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexSplitVectors.html#aafa4c780e325855fe247052453967845"> 299</a></span> <span class="keywordtype">void</span> IndexSplitVectors::train(<a class="code" href="structfaiss_1_1Index.html#ad3f0d3071f987baabbdd3da4500c87ea">idx_t</a> <span class="comment">/*n*/</span>, <span class="keyword">const</span> <span class="keywordtype">float</span>* <span class="comment">/*x*/</span>) {</div>
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<div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  FAISS_THROW_MSG(<span class="stringliteral">"not implemented"</span>);</div>
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<div class="line"><a name="l00301"></a><span class="lineno"> 301</span> }</div>
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<div class="line"><a name="l00302"></a><span class="lineno"> 302</span> </div>
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<div class="line"><a name="l00303"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexSplitVectors.html#a8047981cb8d10c54107664c4955df402"> 303</a></span> <span class="keywordtype">void</span> IndexSplitVectors::reset ()</div>
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<div class="line"><a name="l00304"></a><span class="lineno"> 304</span> {</div>
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<div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  FAISS_THROW_MSG (<span class="stringliteral">"not implemented"</span>);</div>
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<div class="line"><a name="l00306"></a><span class="lineno"> 306</span> }</div>
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<div class="line"><a name="l00307"></a><span class="lineno"> 307</span> </div>
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<div class="line"><a name="l00308"></a><span class="lineno"> 308</span> </div>
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<div class="line"><a name="l00309"></a><span class="lineno"> 309</span> IndexSplitVectors::~IndexSplitVectors ()</div>
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<div class="line"><a name="l00310"></a><span class="lineno"> 310</span> {</div>
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<div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  <span class="keywordflow">if</span> (own_fields) {</div>
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<div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> s = 0; s < sub_indexes.size(); s++)</div>
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<div class="line"><a name="l00313"></a><span class="lineno"> 313</span>  <span class="keyword">delete</span> sub_indexes [s];</div>
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<div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  }</div>
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<div class="line"><a name="l00315"></a><span class="lineno"> 315</span> }</div>
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<div class="line"><a name="l00316"></a><span class="lineno"> 316</span> </div>
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<div class="line"><a name="l00317"></a><span class="lineno"> 317</span> </div>
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<div class="line"><a name="l00318"></a><span class="lineno"> 318</span> } <span class="comment">// namespace faiss</span></div>
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<div class="ttc" id="structfaiss_1_1RangeSearchResult_html_a29269b98c33af874d379ca4f62408b90"><div class="ttname"><a href="structfaiss_1_1RangeSearchResult.html#a29269b98c33af874d379ca4f62408b90">faiss::RangeSearchResult::nq</a></div><div class="ttdeci">size_t nq</div><div class="ttdoc">nb of queries </div><div class="ttdef"><b>Definition:</b> <a href="AuxIndexStructures_8h_source.html#l00032">AuxIndexStructures.h:32</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexIDMap_html_a2f36fa9150a465b48952afbba856e2a1"><div class="ttname"><a href="structfaiss_1_1IndexIDMap.html#a2f36fa9150a465b48952afbba856e2a1">faiss::IndexIDMap::search</a></div><div class="ttdeci">void search(idx_t n, const float *x, idx_t k, float *distances, idx_t *labels) const override</div><div class="ttdef"><b>Definition:</b> <a href="MetaIndexes_8cpp_source.html#l00073">MetaIndexes.cpp:73</a></div></div>
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<div class="ttc" id="structfaiss_1_1IDSelector_html"><div class="ttname"><a href="structfaiss_1_1IDSelector.html">faiss::IDSelector</a></div><div class="ttdef"><b>Definition:</b> <a href="AuxIndexStructures_8h_source.html#l00054">AuxIndexStructures.h:54</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexIDMap2_html_a33ff76975891695c2fa45ed26fc8eae9"><div class="ttname"><a href="structfaiss_1_1IndexIDMap2.html#a33ff76975891695c2fa45ed26fc8eae9">faiss::IndexIDMap2::add_with_ids</a></div><div class="ttdeci">void add_with_ids(idx_t n, const float *x, const long *xids) override</div><div class="ttdef"><b>Definition:</b> <a href="MetaIndexes_8cpp_source.html#l00148">MetaIndexes.cpp:148</a></div></div>
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<div class="ttc" id="structfaiss_1_1ScopeDeleter_html"><div class="ttname"><a href="structfaiss_1_1ScopeDeleter.html">faiss::ScopeDeleter</a></div><div class="ttdef"><b>Definition:</b> <a href="FaissException_8h_source.html#l00045">FaissException.h:45</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexIDMap_html_a16cce6c1e83d0d5f069c9b0399896450"><div class="ttname"><a href="structfaiss_1_1IndexIDMap.html#a16cce6c1e83d0d5f069c9b0399896450">faiss::IndexIDMap::add</a></div><div class="ttdeci">void add(idx_t n, const float *x) override</div><div class="ttdoc">this will fail. Use add_with_ids </div><div class="ttdef"><b>Definition:</b> <a href="MetaIndexes_8cpp_source.html#l00043">MetaIndexes.cpp:43</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexSplitVectors_html"><div class="ttname"><a href="structfaiss_1_1IndexSplitVectors.html">faiss::IndexSplitVectors</a></div><div class="ttdef"><b>Definition:</b> <a href="MetaIndexes_8h_source.html#l00082">MetaIndexes.h:82</a></div></div>
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<div class="ttc" id="structfaiss_1_1Index_html_a2a002388d2c081c2dbab8508dcefe73d"><div class="ttname"><a href="structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d">faiss::Index::d</a></div><div class="ttdeci">int d</div><div class="ttdoc">vector dimension </div><div class="ttdef"><b>Definition:</b> <a href="Index_8h_source.html#l00066">Index.h:66</a></div></div>
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<div class="ttc" id="structfaiss_1_1Index_html_ad3f0d3071f987baabbdd3da4500c87ea"><div class="ttname"><a href="structfaiss_1_1Index.html#ad3f0d3071f987baabbdd3da4500c87ea">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="structfaiss_1_1IndexIDMap_html_ad1cc5658f1879f6a2b00d76cca58cf3b"><div class="ttname"><a href="structfaiss_1_1IndexIDMap.html#ad1cc5658f1879f6a2b00d76cca58cf3b">faiss::IndexIDMap::id_map</a></div><div class="ttdeci">std::vector< long > id_map</div><div class="ttdoc">! whether pointers are deleted in destructo </div><div class="ttdef"><b>Definition:</b> <a href="MetaIndexes_8h_source.html#l00025">MetaIndexes.h:25</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexIDMap_html_a7dbeaf9d44d6783d371f12405e8b7f40"><div class="ttname"><a href="structfaiss_1_1IndexIDMap.html#a7dbeaf9d44d6783d371f12405e8b7f40">faiss::IndexIDMap::range_search</a></div><div class="ttdeci">void range_search(idx_t n, const float *x, float radius, RangeSearchResult *result) const override</div><div class="ttdef"><b>Definition:</b> <a href="MetaIndexes_8cpp_source.html#l00085">MetaIndexes.cpp:85</a></div></div>
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<div class="ttc" id="structfaiss_1_1Index_html_a6970683faa021b7a6f1a0865c0d4eccd"><div class="ttname"><a href="structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd">faiss::Index::ntotal</a></div><div class="ttdeci">idx_t ntotal</div><div class="ttdoc">total nb of indexed vectors </div><div class="ttdef"><b>Definition:</b> <a href="Index_8h_source.html#l00067">Index.h:67</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexIDMap2_html_a646302669189e370d9d864fc18f096fe"><div class="ttname"><a href="structfaiss_1_1IndexIDMap2.html#a646302669189e370d9d864fc18f096fe">faiss::IndexIDMap2::construct_rev_map</a></div><div class="ttdeci">void construct_rev_map()</div><div class="ttdoc">make the rev_map from scratch </div><div class="ttdef"><b>Definition:</b> <a href="MetaIndexes_8cpp_source.html#l00157">MetaIndexes.cpp:157</a></div></div>
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<div class="ttc" id="structfaiss_1_1Index_html_a5590d847c5c2b958affd2a05e58a6f23"><div class="ttname"><a href="structfaiss_1_1Index.html#a5590d847c5c2b958affd2a05e58a6f23">faiss::Index::verbose</a></div><div class="ttdeci">bool verbose</div><div class="ttdoc">verbosity level </div><div class="ttdef"><b>Definition:</b> <a href="Index_8h_source.html#l00068">Index.h:68</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexSplitVectors_html_af2ef88dc72b4a94f1190ecc8cb25881b"><div class="ttname"><a href="structfaiss_1_1IndexSplitVectors.html#af2ef88dc72b4a94f1190ecc8cb25881b">faiss::IndexSplitVectors::add</a></div><div class="ttdeci">void add(idx_t n, const float *x) override</div><div class="ttdef"><b>Definition:</b> <a href="MetaIndexes_8cpp_source.html#l00218">MetaIndexes.cpp:218</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexIDMap2_html_a87e313ebc8dd62fb734a61a6d95a98f0"><div class="ttname"><a href="structfaiss_1_1IndexIDMap2.html#a87e313ebc8dd62fb734a61a6d95a98f0">faiss::IndexIDMap2::remove_ids</a></div><div class="ttdeci">long remove_ids(const IDSelector &sel) override</div><div class="ttdoc">remove ids adapted to IndexFlat </div><div class="ttdef"><b>Definition:</b> <a href="MetaIndexes_8cpp_source.html#l00166">MetaIndexes.cpp:166</a></div></div>
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<div class="ttc" id="structfaiss_1_1Index_html_aced51b1ebc33c47ab3ae15ea906559a7"><div class="ttname"><a href="structfaiss_1_1Index.html#aced51b1ebc33c47ab3ae15ea906559a7">faiss::Index::search</a></div><div class="ttdeci">virtual void search(idx_t n, const float *x, idx_t k, float *distances, idx_t *labels) const =0</div></div>
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<div class="ttc" id="structfaiss_1_1RangeSearchResult_html"><div class="ttname"><a href="structfaiss_1_1RangeSearchResult.html">faiss::RangeSearchResult</a></div><div class="ttdef"><b>Definition:</b> <a href="AuxIndexStructures_8h_source.html#l00031">AuxIndexStructures.h:31</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexIDMap_html_a70aca5b0f665c5a109d5dadf1e13b448"><div class="ttname"><a href="structfaiss_1_1IndexIDMap.html#a70aca5b0f665c5a109d5dadf1e13b448">faiss::IndexIDMap::reset</a></div><div class="ttdeci">void reset() override</div><div class="ttdoc">removes all elements from the database. </div><div class="ttdef"><b>Definition:</b> <a href="MetaIndexes_8cpp_source.html#l00056">MetaIndexes.cpp:56</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexSplitVectors_html_a4a010daf51e44d9717e94400cc23c159"><div class="ttname"><a href="structfaiss_1_1IndexSplitVectors.html#a4a010daf51e44d9717e94400cc23c159">faiss::IndexSplitVectors::search</a></div><div class="ttdeci">void search(idx_t n, const float *x, idx_t k, float *distances, idx_t *labels) const override</div><div class="ttdef"><b>Definition:</b> <a href="MetaIndexes_8cpp_source.html#l00224">MetaIndexes.cpp:224</a></div></div>
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<div class="ttc" id="classfaiss_1_1WorkerThread_html"><div class="ttname"><a href="classfaiss_1_1WorkerThread.html">faiss::WorkerThread</a></div><div class="ttdef"><b>Definition:</b> <a href="WorkerThread_8h_source.html#l00018">WorkerThread.h:18</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexIDMap_html_a699ca4891bf3a437b2a182c04d33d9b9"><div class="ttname"><a href="structfaiss_1_1IndexIDMap.html#a699ca4891bf3a437b2a182c04d33d9b9">faiss::IndexIDMap::remove_ids</a></div><div class="ttdeci">long remove_ids(const IDSelector &sel) override</div><div class="ttdoc">remove ids adapted to IndexFlat </div><div class="ttdef"><b>Definition:</b> <a href="MetaIndexes_8cpp_source.html#l00112">MetaIndexes.cpp:112</a></div></div>
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<div class="ttc" id="structfaiss_1_1Index_html_a8e18f641854b2bde83ecff0a2f9a6f4e"><div class="ttname"><a href="structfaiss_1_1Index.html#a8e18f641854b2bde83ecff0a2f9a6f4e">faiss::Index::metric_type</a></div><div class="ttdeci">MetricType metric_type</div><div class="ttdoc">type of metric this index uses for search </div><div class="ttdef"><b>Definition:</b> <a href="Index_8h_source.html#l00074">Index.h:74</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexIDMap2_html_a3660adb35a3299bc328988f5ff2199fe"><div class="ttname"><a href="structfaiss_1_1IndexIDMap2.html#a3660adb35a3299bc328988f5ff2199fe">faiss::IndexIDMap2::reconstruct</a></div><div class="ttdeci">void reconstruct(idx_t key, float *recons) const override</div><div class="ttdef"><b>Definition:</b> <a href="MetaIndexes_8cpp_source.html#l00174">MetaIndexes.cpp:174</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexIDMap_html_ac873cb03aa323a06dca5d6f3af5fe559"><div class="ttname"><a href="structfaiss_1_1IndexIDMap.html#ac873cb03aa323a06dca5d6f3af5fe559">faiss::IndexIDMap::train</a></div><div class="ttdeci">void train(idx_t n, const float *x) override</div><div class="ttdef"><b>Definition:</b> <a href="MetaIndexes_8cpp_source.html#l00050">MetaIndexes.cpp:50</a></div></div>
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<div class="ttc" id="structfaiss_1_1Index_html"><div class="ttname"><a href="structfaiss_1_1Index.html">faiss::Index</a></div><div class="ttdef"><b>Definition:</b> <a href="Index_8h_source.html#l00061">Index.h:61</a></div></div>
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<div class="ttc" id="structfaiss_1_1RangeSearchResult_html_aef57f9db99ca470c01bcdce0366cb6ff"><div class="ttname"><a href="structfaiss_1_1RangeSearchResult.html#aef57f9db99ca470c01bcdce0366cb6ff">faiss::RangeSearchResult::lims</a></div><div class="ttdeci">size_t * lims</div><div class="ttdoc">size (nq + 1) </div><div class="ttdef"><b>Definition:</b> <a href="AuxIndexStructures_8h_source.html#l00033">AuxIndexStructures.h:33</a></div></div>
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<div class="ttc" id="classfaiss_1_1WorkerThread_html_a484b472c878bb35e4fed5f5ec6733d79"><div class="ttname"><a href="classfaiss_1_1WorkerThread.html#a484b472c878bb35e4fed5f5ec6733d79">faiss::WorkerThread::add</a></div><div class="ttdeci">std::future< bool > add(std::function< void()> f)</div><div class="ttdef"><b>Definition:</b> <a href="WorkerThread_8cpp_source.html#l00057">WorkerThread.cpp:57</a></div></div>
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<div class="ttc" id="structfaiss_1_1Index_html_a6e92732617c4dbe364e7678dd8773a7f"><div class="ttname"><a href="structfaiss_1_1Index.html#a6e92732617c4dbe364e7678dd8773a7f">faiss::Index::is_trained</a></div><div class="ttdeci">bool is_trained</div><div class="ttdoc">set if the Index does not require training, or if training is done already </div><div class="ttdef"><b>Definition:</b> <a href="Index_8h_source.html#l00071">Index.h:71</a></div></div>
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<div class="ttc" id="structfaiss_1_1Index_html_aaef6f4132b1f390121ebb11058baf190"><div class="ttname"><a href="structfaiss_1_1Index.html#aaef6f4132b1f390121ebb11058baf190">faiss::Index::reconstruct</a></div><div class="ttdeci">virtual void reconstruct(idx_t key, float *recons) const </div><div class="ttdef"><b>Definition:</b> <a href="Index_8cpp_source.html#l00054">Index.cpp:54</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexIDMap_html_aeace75e53648c052d05c357b744e090b"><div class="ttname"><a href="structfaiss_1_1IndexIDMap.html#aeace75e53648c052d05c357b744e090b">faiss::IndexIDMap::add_with_ids</a></div><div class="ttdeci">void add_with_ids(idx_t n, const float *x, const long *xids) override</div><div class="ttdef"><b>Definition:</b> <a href="MetaIndexes_8cpp_source.html#l00064">MetaIndexes.cpp:64</a></div></div>
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<div class="ttc" id="structfaiss_1_1RangeSearchResult_html_aa8ff848474a4cc16c5464cc4ec187824"><div class="ttname"><a href="structfaiss_1_1RangeSearchResult.html#aa8ff848474a4cc16c5464cc4ec187824">faiss::RangeSearchResult::labels</a></div><div class="ttdeci">idx_t * labels</div><div class="ttdoc">result for query i is labels[lims[i]:lims[i+1]] </div><div class="ttdef"><b>Definition:</b> <a href="AuxIndexStructures_8h_source.html#l00037">AuxIndexStructures.h:37</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexSplitVectors_html_a70ba3367a08722fe4466dc49c21a4d2b"><div class="ttname"><a href="structfaiss_1_1IndexSplitVectors.html#a70ba3367a08722fe4466dc49c21a4d2b">faiss::IndexSplitVectors::IndexSplitVectors</a></div><div class="ttdeci">IndexSplitVectors(idx_t d, bool threaded=false)</div><div class="ttdoc">sum of dimensions seen so far </div><div class="ttdef"><b>Definition:</b> <a href="MetaIndexes_8cpp_source.html#l00188">MetaIndexes.cpp:188</a></div></div>
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