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<div class="title">/data/users/matthijs/github_faiss/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) 2015-present, Facebook, Inc.</span></div>
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<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> * All rights reserved.</span></div>
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<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> *</span></div>
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<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * This source code is licensed under the BSD+Patents license found in the</span></div>
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<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * LICENSE file in the root directory of this source tree.</span></div>
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<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> */</span></div>
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<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> </div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">// Copyright 2004-present Facebook. All Rights Reserved</span></div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment">// -*- c++ -*-</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 "MetaIndexes.h"</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 <pthread.h></span></div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> </div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#include <cstdio></span></div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> </div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor">#include "FaissAssert.h"</span></div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#include "Heap.h"</span></div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#include "AuxIndexStructures.h"</span></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> </div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="keyword">namespace </span>faiss {</div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> </div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="comment">/*****************************************************</span></div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment"> * IndexIDMap implementation</span></div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment"> *******************************************************/</span></div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> </div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> IndexIDMap::IndexIDMap (Index *index):</div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  index (index),</div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  own_fields (false)</div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> {</div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</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="l00034"></a><span class="lineno"> 34</span>  <a class="code" href="structfaiss_1_1Index.html#a6e92732617c4dbe364e7678dd8773a7f">is_trained</a> = index->is_trained;</div>
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<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  <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="l00036"></a><span class="lineno"> 36</span>  <a class="code" href="structfaiss_1_1Index.html#a5590d847c5c2b958affd2a05e58a6f23">verbose</a> = index->verbose;</div>
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<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  <a class="code" href="structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d">d</a> = index->d;</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> </div>
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<div class="line"><a name="l00040"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexIDMap.html#a16cce6c1e83d0d5f069c9b0399896450"> 40</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#a040c6aed1f224f3ea7bf58eebc0c31a4">idx_t</a>, <span class="keyword">const</span> <span class="keywordtype">float</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>  FAISS_THROW_MSG (<span class="stringliteral">"add does not make sense with IndexIDMap, "</span></div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="stringliteral">"use add_with_ids"</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> </div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> </div>
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<div class="line"><a name="l00047"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexIDMap.html#ac873cb03aa323a06dca5d6f3af5fe559"> 47</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#a040c6aed1f224f3ea7bf58eebc0c31a4">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="l00048"></a><span class="lineno"> 48</span> {</div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  index-><a class="code" href="structfaiss_1_1Index.html#a1ffe916c958605c38b0b1bfad42485e4">train</a> (n, x);</div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <a class="code" href="structfaiss_1_1Index.html#a6e92732617c4dbe364e7678dd8773a7f">is_trained</a> = index-><a class="code" href="structfaiss_1_1Index.html#a6e92732617c4dbe364e7678dd8773a7f">is_trained</a>;</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> </div>
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<div class="line"><a name="l00053"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexIDMap.html#a70aca5b0f665c5a109d5dadf1e13b448"> 53</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="l00054"></a><span class="lineno"> 54</span> {</div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  index-><a class="code" href="structfaiss_1_1Index.html#a849361f5f0ab0aba8d419c86f2594191">reset</a> ();</div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <a class="code" href="structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd">ntotal</a> = 0;</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> </div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> </div>
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<div class="line"><a name="l00060"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexIDMap.html#aeace75e53648c052d05c357b744e090b"> 60</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#a040c6aed1f224f3ea7bf58eebc0c31a4">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="l00061"></a><span class="lineno"> 61</span> {</div>
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<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  index-><a class="code" href="structfaiss_1_1Index.html#a1b5e9ac70adbce0897dd6c8276ad96f2">add</a> (n, x);</div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="keywordflow">for</span> (<a class="code" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">idx_t</a> i = 0; i < n; i++)</div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <a class="code" href="structfaiss_1_1IndexIDMap.html#ad1cc5658f1879f6a2b00d76cca58cf3b">id_map</a>.push_back (xids[i]);</div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <a class="code" href="structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd">ntotal</a> = index-><a class="code" href="structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd">ntotal</a>;</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> </div>
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<div class="line"><a name="l00068"></a><span class="lineno"> 68</span> </div>
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<div class="line"><a name="l00069"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexIDMap.html#a2f36fa9150a465b48952afbba856e2a1"> 69</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#a040c6aed1f224f3ea7bf58eebc0c31a4">idx_t</a> n, <span class="keyword">const</span> <span class="keywordtype">float</span> *x, <a class="code" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">idx_t</a> k,</div>
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<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="keywordtype">float</span> *distances, <a class="code" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">idx_t</a> *labels)<span class="keyword"> const</span></div>
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<div class="line"><a name="l00071"></a><span class="lineno"> 71</span> <span class="keyword"></span>{</div>
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<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  index-><a class="code" href="structfaiss_1_1Index.html#aced51b1ebc33c47ab3ae15ea906559a7">search</a> (n, x, k, distances, labels);</div>
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<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <a class="code" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">idx_t</a> *li = labels;</div>
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<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="keywordflow">for</span> (<a class="code" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">idx_t</a> i = 0; i < n * k; i++) {</div>
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<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  li[i] = li[i] < 0 ? li[i] : <a class="code" href="structfaiss_1_1IndexIDMap.html#ad1cc5658f1879f6a2b00d76cca58cf3b">id_map</a>[li[i]];</div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  }</div>
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<div class="line"><a name="l00077"></a><span class="lineno"> 77</span> }</div>
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<div class="line"><a name="l00078"></a><span class="lineno"> 78</span> </div>
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<div class="line"><a name="l00079"></a><span class="lineno"> 79</span> <span class="keyword">namespace </span>{</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="keyword">struct </span>IDTranslatedSelector: <a class="code" href="structfaiss_1_1IDSelector.html">IDSelector</a> {</div>
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<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <span class="keyword">const</span> std::vector <long> & id_map;</div>
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<div class="line"><a name="l00083"></a><span class="lineno"> 83</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="l00084"></a><span class="lineno"> 84</span>  IDTranslatedSelector (<span class="keyword">const</span> std::vector <long> & id_map,</div>
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<div class="line"><a name="l00085"></a><span class="lineno"> 85</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="l00086"></a><span class="lineno"> 86</span>  id_map (id_map), sel (sel)</div>
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<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  {}</div>
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<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="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="l00089"></a><span class="lineno"> 89</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="l00090"></a><span class="lineno"> 90</span>  }</div>
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<div class="line"><a name="l00091"></a><span class="lineno"> 91</span> };</div>
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<div class="line"><a name="l00092"></a><span class="lineno"> 92</span> </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"><a class="line" href="structfaiss_1_1IndexIDMap.html#a699ca4891bf3a437b2a182c04d33d9b9"> 95</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="l00096"></a><span class="lineno"> 96</span> {</div>
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<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="comment">// remove in sub-index first</span></div>
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<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  IDTranslatedSelector sel2 (<a class="code" href="structfaiss_1_1IndexIDMap.html#ad1cc5658f1879f6a2b00d76cca58cf3b">id_map</a>, sel);</div>
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<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <span class="keywordtype">long</span> nremove = index-><a class="code" href="structfaiss_1_1Index.html#af8bf7bd97aeed8ad5fc48b242379a68a">remove_ids</a> (sel2);</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>  <span class="keywordtype">long</span> j = 0;</div>
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<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="keywordflow">for</span> (<a class="code" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">idx_t</a> 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="l00103"></a><span class="lineno"> 103</span>  <span class="keywordflow">if</span> (sel.is_member (<a class="code" href="structfaiss_1_1IndexIDMap.html#ad1cc5658f1879f6a2b00d76cca58cf3b">id_map</a>[i])) {</div>
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<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="comment">// remove</span></div>
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<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  } <span class="keywordflow">else</span> {</div>
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<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <a class="code" href="structfaiss_1_1IndexIDMap.html#ad1cc5658f1879f6a2b00d76cca58cf3b">id_map</a>[j] = <a class="code" href="structfaiss_1_1IndexIDMap.html#ad1cc5658f1879f6a2b00d76cca58cf3b">id_map</a>[i];</div>
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<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  j++;</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>  FAISS_ASSERT (j == index-><a class="code" href="structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd">ntotal</a>);</div>
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<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  ntotal = j;</div>
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<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <span class="keywordflow">return</span> nremove;</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> </div>
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<div class="line"><a name="l00115"></a><span class="lineno"> 115</span> </div>
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<div class="line"><a name="l00116"></a><span class="lineno"> 116</span> </div>
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<div class="line"><a name="l00117"></a><span class="lineno"> 117</span> </div>
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<div class="line"><a name="l00118"></a><span class="lineno"> 118</span> IndexIDMap::~IndexIDMap ()</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>  <span class="keywordflow">if</span> (<a class="code" href="structfaiss_1_1IndexIDMap.html#affa8a764304410c96489c2b2e178bcdb">own_fields</a>) <span class="keyword">delete</span> index;</div>
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<div class="line"><a name="l00121"></a><span class="lineno"> 121</span> }</div>
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<div class="line"><a name="l00122"></a><span class="lineno"> 122</span> </div>
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<div class="line"><a name="l00123"></a><span class="lineno"> 123</span> <span class="comment">/*****************************************************</span></div>
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<div class="line"><a name="l00124"></a><span class="lineno"> 124</span> <span class="comment"> * IndexIDMap2 implementation</span></div>
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<div class="line"><a name="l00125"></a><span class="lineno"> 125</span> <span class="comment"> *******************************************************/</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> IndexIDMap2::IndexIDMap2 (Index *index): IndexIDMap (index)</div>
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<div class="line"><a name="l00128"></a><span class="lineno"> 128</span> {}</div>
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<div class="line"><a name="l00129"></a><span class="lineno"> 129</span> </div>
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<div class="line"><a name="l00130"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexIDMap2.html#a33ff76975891695c2fa45ed26fc8eae9"> 130</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="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="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="l00133"></a><span class="lineno"> 133</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="l00134"></a><span class="lineno"> 134</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="l00135"></a><span class="lineno"> 135</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="l00136"></a><span class="lineno"> 136</span>  }</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> </div>
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<div class="line"><a name="l00139"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexIDMap2.html#a646302669189e370d9d864fc18f096fe"> 139</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="l00140"></a><span class="lineno"> 140</span> {</div>
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<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  rev_map.clear ();</div>
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<div class="line"><a name="l00142"></a><span class="lineno"> 142</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="l00143"></a><span class="lineno"> 143</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="l00144"></a><span class="lineno"> 144</span>  }</div>
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<div class="line"><a name="l00145"></a><span class="lineno"> 145</span> }</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#a87e313ebc8dd62fb734a61a6d95a98f0"> 148</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="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="comment">// This is quite inefficient</span></div>
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<div class="line"><a name="l00151"></a><span class="lineno"> 151</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="l00152"></a><span class="lineno"> 152</span>  <a class="code" href="structfaiss_1_1IndexIDMap2.html#a646302669189e370d9d864fc18f096fe">construct_rev_map</a> ();</div>
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<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  <span class="keywordflow">return</span> nremove;</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"><a class="line" href="structfaiss_1_1IndexIDMap2.html#a3660adb35a3299bc328988f5ff2199fe"> 156</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="l00157"></a><span class="lineno"> 157</span> <span class="keyword"></span>{</div>
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<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="keywordflow">try</span> {</div>
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<div class="line"><a name="l00159"></a><span class="lineno"> 159</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="l00160"></a><span class="lineno"> 160</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="l00161"></a><span class="lineno"> 161</span>  FAISS_THROW_FMT (<span class="stringliteral">"key %ld not found"</span>, key);</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"> 166</span> </div>
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<div class="line"><a name="l00167"></a><span class="lineno"> 167</span> <span class="comment">/*****************************************************</span></div>
|
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<div class="line"><a name="l00168"></a><span class="lineno"> 168</span> <span class="comment"> * IndexShards implementation</span></div>
|
|
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span> <span class="comment"> *******************************************************/</span></div>
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<div class="line"><a name="l00170"></a><span class="lineno"> 170</span> </div>
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<div class="line"><a name="l00171"></a><span class="lineno"> 171</span> <span class="comment">// subroutines</span></div>
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<div class="line"><a name="l00172"></a><span class="lineno"> 172</span> <span class="keyword">namespace </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"> 174</span> </div>
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<div class="line"><a name="l00175"></a><span class="lineno"> 175</span> <span class="keyword">typedef</span> <a class="code" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">Index::idx_t</a> idx_t;</div>
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<div class="line"><a name="l00176"></a><span class="lineno"> 176</span> </div>
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<div class="line"><a name="l00177"></a><span class="lineno"> 177</span> </div>
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<div class="line"><a name="l00178"></a><span class="lineno"> 178</span> <span class="keyword">template</span><<span class="keyword">class</span> Job></div>
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<div class="line"><a name="l00179"></a><span class="lineno"> 179</span> <span class="keyword">struct </span>Thread {</div>
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<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  Job job;</div>
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<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  pthread_t thread;</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>  Thread () {}</div>
|
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<div class="line"><a name="l00184"></a><span class="lineno"> 184</span> </div>
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<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <span class="keyword">explicit</span> Thread (<span class="keyword">const</span> Job & job): job(job) {}</div>
|
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<div class="line"><a name="l00186"></a><span class="lineno"> 186</span> </div>
|
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<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  <span class="keywordtype">void</span> start () {</div>
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<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  pthread_create (&thread, <span class="keyword">nullptr</span>, run, <span class="keyword">this</span>);</div>
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<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  }</div>
|
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<div class="line"><a name="l00190"></a><span class="lineno"> 190</span> </div>
|
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<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  <span class="keywordtype">void</span> wait () {</div>
|
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<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  pthread_join (thread, <span class="keyword">nullptr</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="keyword">static</span> <span class="keywordtype">void</span> * run (<span class="keywordtype">void</span> *arg) {</div>
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<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  <span class="keyword">static_cast<</span>Thread*<span class="keyword">></span> (arg)->job.run();</div>
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<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  <span class="keywordflow">return</span> <span class="keyword">nullptr</span>;</div>
|
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<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  }</div>
|
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<div class="line"><a name="l00199"></a><span class="lineno"> 199</span> </div>
|
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<div class="line"><a name="l00200"></a><span class="lineno"> 200</span> };</div>
|
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<div class="line"><a name="l00201"></a><span class="lineno"> 201</span> </div>
|
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<div class="line"><a name="l00202"></a><span class="lineno"> 202</span> <span class="comment"></span></div>
|
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<div class="line"><a name="l00203"></a><span class="lineno"> 203</span> <span class="comment">/// callback + thread management to train 1 shard</span></div>
|
|
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span> <span class="comment"></span><span class="keyword">struct </span>TrainJob {</div>
|
|
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  IndexShards *index; <span class="comment">// the relevant index</span></div>
|
|
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  <span class="keywordtype">int</span> no; <span class="comment">// shard number</span></div>
|
|
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  idx_t n; <span class="comment">// train points</span></div>
|
|
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  <span class="keyword">const</span> <span class="keywordtype">float</span> *x;</div>
|
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<div class="line"><a name="l00209"></a><span class="lineno"> 209</span> </div>
|
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<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  <span class="keywordtype">void</span> run ()</div>
|
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<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  {</div>
|
|
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  <span class="keywordflow">if</span> (index->verbose)</div>
|
|
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  printf (<span class="stringliteral">"begin train shard %d on %ld points\n"</span>, no, n);</div>
|
|
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  index->shard_indexes [no]->train(n, x);</div>
|
|
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  <span class="keywordflow">if</span> (index->verbose)</div>
|
|
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  printf (<span class="stringliteral">"end train shard %d\n"</span>, no);</div>
|
|
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  }</div>
|
|
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span> </div>
|
|
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span> };</div>
|
|
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span> </div>
|
|
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span> <span class="keyword">struct </span>AddJob {</div>
|
|
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  IndexShards *index; <span class="comment">// the relevant index</span></div>
|
|
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  <span class="keywordtype">int</span> no; <span class="comment">// shard number</span></div>
|
|
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span> </div>
|
|
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  idx_t n;</div>
|
|
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  <span class="keyword">const</span> <span class="keywordtype">float</span> *x;</div>
|
|
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  <span class="keyword">const</span> idx_t *ids;</div>
|
|
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span> </div>
|
|
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  <span class="keywordtype">void</span> run ()</div>
|
|
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  {</div>
|
|
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  <span class="keywordflow">if</span> (index->verbose)</div>
|
|
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  printf (<span class="stringliteral">"begin add shard %d on %ld points\n"</span>, no, n);</div>
|
|
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  <span class="keywordflow">if</span> (ids)</div>
|
|
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  index->shard_indexes[no]->add_with_ids (n, x, ids);</div>
|
|
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  <span class="keywordflow">else</span></div>
|
|
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  index->shard_indexes[no]->add (n, x);</div>
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<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  <span class="keywordflow">if</span> (index->verbose)</div>
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<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  printf (<span class="stringliteral">"end add shard %d on %ld points\n"</span>, no, n);</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> </div>
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<div class="line"><a name="l00243"></a><span class="lineno"> 243</span> <span class="comment"></span></div>
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<div class="line"><a name="l00244"></a><span class="lineno"> 244</span> <span class="comment">/// callback + thread management to query in 1 shard</span></div>
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<div class="line"><a name="l00245"></a><span class="lineno"> 245</span> <span class="comment"></span><span class="keyword">struct </span>QueryJob {</div>
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<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  <span class="keyword">const</span> IndexShards *index; <span class="comment">// the relevant index</span></div>
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<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  <span class="keywordtype">int</span> no; <span class="comment">// shard number</span></div>
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<div class="line"><a name="l00248"></a><span class="lineno"> 248</span> </div>
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<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  <span class="comment">// query params</span></div>
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<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  idx_t n;</div>
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<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  <span class="keyword">const</span> <span class="keywordtype">float</span> *x;</div>
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<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  idx_t k;</div>
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<div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  <span class="keywordtype">float</span> *distances;</div>
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<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  idx_t *labels;</div>
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<div class="line"><a name="l00255"></a><span class="lineno"> 255</span> </div>
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<div class="line"><a name="l00256"></a><span class="lineno"> 256</span> </div>
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<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  <span class="keywordtype">void</span> run ()</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> (index->verbose)</div>
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<div class="line"><a name="l00260"></a><span class="lineno"> 260</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="l00261"></a><span class="lineno"> 261</span>  index->shard_indexes [no]->search (n, x, k,</div>
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<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  distances, labels);</div>
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<div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  <span class="keywordflow">if</span> (index->verbose)</div>
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<div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  printf (<span class="stringliteral">"end query shard %d\n"</span>, no);</div>
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<div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  }</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> </div>
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<div class="line"><a name="l00268"></a><span class="lineno"> 268</span> };</div>
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<div class="line"><a name="l00269"></a><span class="lineno"> 269</span> </div>
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<div class="line"><a name="l00270"></a><span class="lineno"> 270</span> </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">// add translation to all valid labels</span></div>
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<div class="line"><a name="l00274"></a><span class="lineno"> 274</span> <span class="keywordtype">void</span> translate_labels (<span class="keywordtype">long</span> n, idx_t *labels, <span class="keywordtype">long</span> translation)</div>
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<div class="line"><a name="l00275"></a><span class="lineno"> 275</span> {</div>
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<div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  <span class="keywordflow">if</span> (translation == 0) <span class="keywordflow">return</span>;</div>
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<div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  <span class="keywordflow">for</span> (<span class="keywordtype">long</span> i = 0; i < n; i++) {</div>
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<div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  <span class="keywordflow">if</span>(labels[i] < 0) <span class="keywordflow">return</span>;</div>
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<div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  labels[i] += translation;</div>
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<div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  }</div>
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<div class="line"><a name="l00281"></a><span class="lineno"> 281</span> }</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> <span class="comment"></span></div>
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<div class="line"><a name="l00284"></a><span class="lineno"> 284</span> <span class="comment">/** merge result tables from several shards.</span></div>
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<div class="line"><a name="l00285"></a><span class="lineno"> 285</span> <span class="comment"> * @param all_distances size nshard * n * k</span></div>
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<div class="line"><a name="l00286"></a><span class="lineno"> 286</span> <span class="comment"> * @param all_labels idem</span></div>
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<div class="line"><a name="l00287"></a><span class="lineno"> 287</span> <span class="comment"> * @param translartions label translations to apply, size nshard</span></div>
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<div class="line"><a name="l00288"></a><span class="lineno"> 288</span> <span class="comment"> */</span></div>
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<div class="line"><a name="l00289"></a><span class="lineno"> 289</span> </div>
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<div class="line"><a name="l00290"></a><span class="lineno"> 290</span> <span class="keyword">template</span> <<span class="keyword">class</span> C></div>
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<div class="line"><a name="l00291"></a><span class="lineno"> 291</span> <span class="keywordtype">void</span> merge_tables (<span class="keywordtype">long</span> n, <span class="keywordtype">long</span> k, <span class="keywordtype">long</span> nshard,</div>
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<div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  <span class="keywordtype">float</span> *distances, idx_t *labels,</div>
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<div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  <span class="keyword">const</span> <span class="keywordtype">float</span> *all_distances,</div>
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<div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  idx_t *all_labels,</div>
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<div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  <span class="keyword">const</span> <span class="keywordtype">long</span> *translations)</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>  <span class="keywordflow">if</span>(k == 0) {</div>
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|
<div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  <span class="keywordflow">return</span>;</div>
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<div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  }</div>
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<div class="line"><a name="l00300"></a><span class="lineno"> 300</span> </div>
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<div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  <span class="keywordtype">long</span> stride = n * k;</div>
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<div class="line"><a name="l00302"></a><span class="lineno"> 302</span> <span class="preprocessor">#pragma omp parallel</span></div>
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<div class="line"><a name="l00303"></a><span class="lineno"> 303</span> <span class="preprocessor"></span> {</div>
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<div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  std::vector<int> buf (2 * nshard);</div>
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<div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  <span class="keywordtype">int</span> * pointer = buf.data();</div>
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<div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  <span class="keywordtype">int</span> * shard_ids = pointer + nshard;</div>
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<div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  std::vector<float> buf2 (nshard);</div>
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<div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  <span class="keywordtype">float</span> * heap_vals = buf2.data();</div>
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<div class="line"><a name="l00309"></a><span class="lineno"> 309</span> <span class="preprocessor">#pragma omp for</span></div>
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<div class="line"><a name="l00310"></a><span class="lineno"> 310</span> <span class="preprocessor"></span> <span class="keywordflow">for</span> (<span class="keywordtype">long</span> i = 0; i < n; i++) {</div>
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<div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  <span class="comment">// the heap maps values to the shard where they are</span></div>
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|
<div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  <span class="comment">// produced.</span></div>
|
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<div class="line"><a name="l00313"></a><span class="lineno"> 313</span>  <span class="keyword">const</span> <span class="keywordtype">float</span> *D_in = all_distances + i * k;</div>
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<div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  <span class="keyword">const</span> idx_t *I_in = all_labels + i * k;</div>
|
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<div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  <span class="keywordtype">int</span> heap_size = 0;</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>  <span class="keywordflow">for</span> (<span class="keywordtype">long</span> s = 0; s < nshard; s++) {</div>
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<div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  pointer[s] = 0;</div>
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|
<div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  <span class="keywordflow">if</span> (I_in[stride * s] >= 0)</div>
|
|
<div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  heap_push<C> (++heap_size, heap_vals, shard_ids,</div>
|
|
<div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  D_in[stride * s], s);</div>
|
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<div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  }</div>
|
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<div class="line"><a name="l00323"></a><span class="lineno"> 323</span> </div>
|
|
<div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  <span class="keywordtype">float</span> *D = distances + i * k;</div>
|
|
<div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  idx_t *I = labels + i * k;</div>
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<div class="line"><a name="l00326"></a><span class="lineno"> 326</span> </div>
|
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<div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> j = 0; j < k; j++) {</div>
|
|
<div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  <span class="keywordflow">if</span> (heap_size == 0) {</div>
|
|
<div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  I[j] = -1;</div>
|
|
<div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  D[j] = C::neutral();</div>
|
|
<div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  } <span class="keywordflow">else</span> {</div>
|
|
<div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  <span class="comment">// pop best element</span></div>
|
|
<div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  <span class="keywordtype">int</span> s = shard_ids[0];</div>
|
|
<div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  <span class="keywordtype">int</span> & p = pointer[s];</div>
|
|
<div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  D[j] = heap_vals[0];</div>
|
|
<div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  I[j] = I_in[stride * s + p] + translations[s];</div>
|
|
<div class="line"><a name="l00337"></a><span class="lineno"> 337</span> </div>
|
|
<div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  heap_pop<C> (heap_size--, heap_vals, shard_ids);</div>
|
|
<div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  p++;</div>
|
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<div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  <span class="keywordflow">if</span> (p < k && I_in[stride * s + p] >= 0)</div>
|
|
<div class="line"><a name="l00341"></a><span class="lineno"> 341</span>  heap_push<C> (++heap_size, heap_vals, shard_ids,</div>
|
|
<div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  D_in[stride * s + p], s);</div>
|
|
<div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  }</div>
|
|
<div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  }</div>
|
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<div class="line"><a name="l00345"></a><span class="lineno"> 345</span>  }</div>
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<div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  }</div>
|
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<div class="line"><a name="l00347"></a><span class="lineno"> 347</span> }</div>
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<div class="line"><a name="l00348"></a><span class="lineno"> 348</span> </div>
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<div class="line"><a name="l00349"></a><span class="lineno"> 349</span> </div>
|
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<div class="line"><a name="l00350"></a><span class="lineno"> 350</span> };</div>
|
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<div class="line"><a name="l00351"></a><span class="lineno"> 351</span> </div>
|
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<div class="line"><a name="l00352"></a><span class="lineno"> 352</span> </div>
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<div class="line"><a name="l00353"></a><span class="lineno"> 353</span> </div>
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<div class="line"><a name="l00354"></a><span class="lineno"> 354</span> </div>
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<div class="line"><a name="l00355"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexShards.html#ad987a18a1786919e32cc02ca36e5ab46"> 355</a></span> <a class="code" href="structfaiss_1_1IndexShards.html#ad987a18a1786919e32cc02ca36e5ab46">IndexShards::IndexShards</a> (idx_t d, <span class="keywordtype">bool</span> threaded, <span class="keywordtype">bool</span> successive_ids):</div>
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<div class="line"><a name="l00356"></a><span class="lineno"> 356</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="l00357"></a><span class="lineno"> 357</span>  threaded (threaded), successive_ids (successive_ids)</div>
|
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<div class="line"><a name="l00358"></a><span class="lineno"> 358</span> {</div>
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<div class="line"><a name="l00359"></a><span class="lineno"> 359</span> </div>
|
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<div class="line"><a name="l00360"></a><span class="lineno"> 360</span> }</div>
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<div class="line"><a name="l00361"></a><span class="lineno"> 361</span> </div>
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<div class="line"><a name="l00362"></a><span class="lineno"> 362</span> <span class="keywordtype">void</span> IndexShards::add_shard (<a class="code" href="structfaiss_1_1Index.html">Index</a> *idx)</div>
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<div class="line"><a name="l00363"></a><span class="lineno"> 363</span> {</div>
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<div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  shard_indexes.push_back (idx);</div>
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<div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  sync_with_shard_indexes ();</div>
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<div class="line"><a name="l00366"></a><span class="lineno"> 366</span> }</div>
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<div class="line"><a name="l00367"></a><span class="lineno"> 367</span> </div>
|
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<div class="line"><a name="l00368"></a><span class="lineno"> 368</span> <span class="keywordtype">void</span> IndexShards::sync_with_shard_indexes ()</div>
|
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<div class="line"><a name="l00369"></a><span class="lineno"> 369</span> {</div>
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<div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  <span class="keywordflow">if</span> (shard_indexes.empty()) <span class="keywordflow">return</span>;</div>
|
|
<div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  Index * index0 = shard_indexes[0];</div>
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<div class="line"><a name="l00372"></a><span class="lineno"> 372</span>  <a class="code" href="structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d">d</a> = index0->d;</div>
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<div class="line"><a name="l00373"></a><span class="lineno"> 373</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="l00374"></a><span class="lineno"> 374</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="l00375"></a><span class="lineno"> 375</span>  <a class="code" href="structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd">ntotal</a> = index0->ntotal;</div>
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|
<div class="line"><a name="l00376"></a><span class="lineno"> 376</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 1; i < shard_indexes.size(); i++) {</div>
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|
<div class="line"><a name="l00377"></a><span class="lineno"> 377</span>  Index * index = shard_indexes[i];</div>
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<div class="line"><a name="l00378"></a><span class="lineno"> 378</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="l00379"></a><span class="lineno"> 379</span>  FAISS_THROW_IF_NOT (<a class="code" href="structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d">d</a> == index->d);</div>
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|
<div class="line"><a name="l00380"></a><span class="lineno"> 380</span>  <a class="code" href="structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd">ntotal</a> += index->ntotal;</div>
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|
<div class="line"><a name="l00381"></a><span class="lineno"> 381</span>  }</div>
|
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<div class="line"><a name="l00382"></a><span class="lineno"> 382</span> }</div>
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<div class="line"><a name="l00383"></a><span class="lineno"> 383</span> </div>
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<div class="line"><a name="l00384"></a><span class="lineno"> 384</span> </div>
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<div class="line"><a name="l00385"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexShards.html#a36fbcc85eed9bf2ea15587f04be9ae0b"> 385</a></span> <span class="keywordtype">void</span> <a class="code" href="structfaiss_1_1IndexShards.html#a36fbcc85eed9bf2ea15587f04be9ae0b">IndexShards::train</a> (idx_t n, <span class="keyword">const</span> <span class="keywordtype">float</span> *x)</div>
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<div class="line"><a name="l00386"></a><span class="lineno"> 386</span> {</div>
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<div class="line"><a name="l00387"></a><span class="lineno"> 387</span> </div>
|
|
<div class="line"><a name="l00388"></a><span class="lineno"> 388</span>  <span class="comment">// pre-alloc because we don't want reallocs</span></div>
|
|
<div class="line"><a name="l00389"></a><span class="lineno"> 389</span>  std::vector<Thread<TrainJob > > tss (shard_indexes.size());</div>
|
|
<div class="line"><a name="l00390"></a><span class="lineno"> 390</span>  <span class="keywordtype">int</span> nt = 0;</div>
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|
<div class="line"><a name="l00391"></a><span class="lineno"> 391</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < shard_indexes.size(); i++) {</div>
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<div class="line"><a name="l00392"></a><span class="lineno"> 392</span>  <span class="keywordflow">if</span>(!shard_indexes[i]-><a class="code" href="structfaiss_1_1Index.html#a6e92732617c4dbe364e7678dd8773a7f">is_trained</a>) {</div>
|
|
<div class="line"><a name="l00393"></a><span class="lineno"> 393</span>  TrainJob ts = {<span class="keyword">this</span>, i, n, x};</div>
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<div class="line"><a name="l00394"></a><span class="lineno"> 394</span>  <span class="keywordflow">if</span> (<a class="code" href="structfaiss_1_1IndexShards.html#a493da171720f2c3f35058f793fb9a6ce">threaded</a>) {</div>
|
|
<div class="line"><a name="l00395"></a><span class="lineno"> 395</span>  tss[nt] = Thread<TrainJob> (ts);</div>
|
|
<div class="line"><a name="l00396"></a><span class="lineno"> 396</span>  tss[nt++].start();</div>
|
|
<div class="line"><a name="l00397"></a><span class="lineno"> 397</span>  } <span class="keywordflow">else</span> {</div>
|
|
<div class="line"><a name="l00398"></a><span class="lineno"> 398</span>  ts.run();</div>
|
|
<div class="line"><a name="l00399"></a><span class="lineno"> 399</span>  }</div>
|
|
<div class="line"><a name="l00400"></a><span class="lineno"> 400</span>  }</div>
|
|
<div class="line"><a name="l00401"></a><span class="lineno"> 401</span>  }</div>
|
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<div class="line"><a name="l00402"></a><span class="lineno"> 402</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < nt; i++) {</div>
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|
<div class="line"><a name="l00403"></a><span class="lineno"> 403</span>  tss[i].wait();</div>
|
|
<div class="line"><a name="l00404"></a><span class="lineno"> 404</span>  }</div>
|
|
<div class="line"><a name="l00405"></a><span class="lineno"> 405</span>  sync_with_shard_indexes ();</div>
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|
<div class="line"><a name="l00406"></a><span class="lineno"> 406</span> }</div>
|
|
<div class="line"><a name="l00407"></a><span class="lineno"> 407</span> </div>
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<div class="line"><a name="l00408"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexShards.html#a2e06889521c566525011eb46cc97cda6"> 408</a></span> <span class="keywordtype">void</span> <a class="code" href="structfaiss_1_1IndexShards.html#a2e06889521c566525011eb46cc97cda6">IndexShards::add</a> (idx_t n, <span class="keyword">const</span> <span class="keywordtype">float</span> *x)</div>
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|
<div class="line"><a name="l00409"></a><span class="lineno"> 409</span> {</div>
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<div class="line"><a name="l00410"></a><span class="lineno"> 410</span>  <a class="code" href="structfaiss_1_1IndexShards.html#a1f771d50133494f682f05c9ab9e39ad9">add_with_ids</a> (n, x, <span class="keyword">nullptr</span>);</div>
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|
<div class="line"><a name="l00411"></a><span class="lineno"> 411</span> }</div>
|
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<div class="line"><a name="l00412"></a><span class="lineno"> 412</span> <span class="comment"></span></div>
|
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<div class="line"><a name="l00413"></a><span class="lineno"> 413</span> <span class="comment"> /**</span></div>
|
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<div class="line"><a name="l00414"></a><span class="lineno"> 414</span> <span class="comment"> * Cases (successive_ids, xids):</span></div>
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|
<div class="line"><a name="l00415"></a><span class="lineno"> 415</span> <span class="comment"> * - true, non-NULL ERROR: it makes no sense to pass in ids and</span></div>
|
|
<div class="line"><a name="l00416"></a><span class="lineno"> 416</span> <span class="comment"> * request them to be shifted</span></div>
|
|
<div class="line"><a name="l00417"></a><span class="lineno"> 417</span> <span class="comment"> * - true, NULL OK, but should be called only once (calls add()</span></div>
|
|
<div class="line"><a name="l00418"></a><span class="lineno"> 418</span> <span class="comment"> * on sub-indexes).</span></div>
|
|
<div class="line"><a name="l00419"></a><span class="lineno"> 419</span> <span class="comment"> * - false, non-NULL OK: will call add_with_ids with passed in xids</span></div>
|
|
<div class="line"><a name="l00420"></a><span class="lineno"> 420</span> <span class="comment"> * distributed evenly over shards</span></div>
|
|
<div class="line"><a name="l00421"></a><span class="lineno"> 421</span> <span class="comment"> * - false, NULL OK: will call add_with_ids on each sub-index,</span></div>
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|
<div class="line"><a name="l00422"></a><span class="lineno"> 422</span> <span class="comment"> * starting at ntotal</span></div>
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<div class="line"><a name="l00423"></a><span class="lineno"> 423</span> <span class="comment"> */</span></div>
|
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<div class="line"><a name="l00424"></a><span class="lineno"> 424</span> </div>
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<div class="line"><a name="l00425"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexShards.html#a1f771d50133494f682f05c9ab9e39ad9"> 425</a></span> <span class="keywordtype">void</span> <a class="code" href="structfaiss_1_1IndexShards.html#a1f771d50133494f682f05c9ab9e39ad9">IndexShards::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="l00426"></a><span class="lineno"> 426</span> {</div>
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<div class="line"><a name="l00427"></a><span class="lineno"> 427</span> </div>
|
|
<div class="line"><a name="l00428"></a><span class="lineno"> 428</span>  FAISS_THROW_IF_NOT_MSG(!(successive_ids && xids),</div>
|
|
<div class="line"><a name="l00429"></a><span class="lineno"> 429</span>  <span class="stringliteral">"It makes no sense to pass in ids and "</span></div>
|
|
<div class="line"><a name="l00430"></a><span class="lineno"> 430</span>  <span class="stringliteral">"request them to be shifted"</span>);</div>
|
|
<div class="line"><a name="l00431"></a><span class="lineno"> 431</span> </div>
|
|
<div class="line"><a name="l00432"></a><span class="lineno"> 432</span>  <span class="keywordflow">if</span> (successive_ids) {</div>
|
|
<div class="line"><a name="l00433"></a><span class="lineno"> 433</span>  FAISS_THROW_IF_NOT_MSG(!xids,</div>
|
|
<div class="line"><a name="l00434"></a><span class="lineno"> 434</span>  <span class="stringliteral">"It makes no sense to pass in ids and "</span></div>
|
|
<div class="line"><a name="l00435"></a><span class="lineno"> 435</span>  <span class="stringliteral">"request them to be shifted"</span>);</div>
|
|
<div class="line"><a name="l00436"></a><span class="lineno"> 436</span>  FAISS_THROW_IF_NOT_MSG(<a class="code" href="structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd">ntotal</a> == 0,</div>
|
|
<div class="line"><a name="l00437"></a><span class="lineno"> 437</span>  <span class="stringliteral">"when adding to IndexShards with sucessive_ids, "</span></div>
|
|
<div class="line"><a name="l00438"></a><span class="lineno"> 438</span>  <span class="stringliteral">"only add() in a single pass is supported"</span>);</div>
|
|
<div class="line"><a name="l00439"></a><span class="lineno"> 439</span>  }</div>
|
|
<div class="line"><a name="l00440"></a><span class="lineno"> 440</span> </div>
|
|
<div class="line"><a name="l00441"></a><span class="lineno"> 441</span>  <span class="keywordtype">long</span> nshard = shard_indexes.size();</div>
|
|
<div class="line"><a name="l00442"></a><span class="lineno"> 442</span>  <span class="keyword">const</span> <span class="keywordtype">long</span> *ids = xids;</div>
|
|
<div class="line"><a name="l00443"></a><span class="lineno"> 443</span>  <a class="code" href="structfaiss_1_1ScopeDeleter.html">ScopeDeleter<long></a> del;</div>
|
|
<div class="line"><a name="l00444"></a><span class="lineno"> 444</span>  <span class="keywordflow">if</span> (!ids && !successive_ids) {</div>
|
|
<div class="line"><a name="l00445"></a><span class="lineno"> 445</span>  <span class="keywordtype">long</span> *aids = <span class="keyword">new</span> <span class="keywordtype">long</span>[n];</div>
|
|
<div class="line"><a name="l00446"></a><span class="lineno"> 446</span>  <span class="keywordflow">for</span> (<span class="keywordtype">long</span> i = 0; i < n; i++)</div>
|
|
<div class="line"><a name="l00447"></a><span class="lineno"> 447</span>  aids[i] = <a class="code" href="structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd">ntotal</a> + i;</div>
|
|
<div class="line"><a name="l00448"></a><span class="lineno"> 448</span>  ids = aids;</div>
|
|
<div class="line"><a name="l00449"></a><span class="lineno"> 449</span>  del.set (ids);</div>
|
|
<div class="line"><a name="l00450"></a><span class="lineno"> 450</span>  }</div>
|
|
<div class="line"><a name="l00451"></a><span class="lineno"> 451</span> </div>
|
|
<div class="line"><a name="l00452"></a><span class="lineno"> 452</span>  std::vector<Thread<AddJob > > asa (shard_indexes.size());</div>
|
|
<div class="line"><a name="l00453"></a><span class="lineno"> 453</span>  <span class="keywordtype">int</span> nt = 0;</div>
|
|
<div class="line"><a name="l00454"></a><span class="lineno"> 454</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < nshard; i++) {</div>
|
|
<div class="line"><a name="l00455"></a><span class="lineno"> 455</span>  <span class="keywordtype">long</span> i0 = i * n / nshard;</div>
|
|
<div class="line"><a name="l00456"></a><span class="lineno"> 456</span>  <span class="keywordtype">long</span> i1 = (i + 1) * n / nshard;</div>
|
|
<div class="line"><a name="l00457"></a><span class="lineno"> 457</span> </div>
|
|
<div class="line"><a name="l00458"></a><span class="lineno"> 458</span>  AddJob as = {<span class="keyword">this</span>, i,</div>
|
|
<div class="line"><a name="l00459"></a><span class="lineno"> 459</span>  i1 - i0, x + i0 * <a class="code" href="structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d">d</a>,</div>
|
|
<div class="line"><a name="l00460"></a><span class="lineno"> 460</span>  ids ? ids + i0 : <span class="keyword">nullptr</span>};</div>
|
|
<div class="line"><a name="l00461"></a><span class="lineno"> 461</span>  <span class="keywordflow">if</span> (<a class="code" href="structfaiss_1_1IndexShards.html#a493da171720f2c3f35058f793fb9a6ce">threaded</a>) {</div>
|
|
<div class="line"><a name="l00462"></a><span class="lineno"> 462</span>  asa[nt] = Thread<AddJob>(as);</div>
|
|
<div class="line"><a name="l00463"></a><span class="lineno"> 463</span>  asa[nt++].start();</div>
|
|
<div class="line"><a name="l00464"></a><span class="lineno"> 464</span>  } <span class="keywordflow">else</span> {</div>
|
|
<div class="line"><a name="l00465"></a><span class="lineno"> 465</span>  as.run();</div>
|
|
<div class="line"><a name="l00466"></a><span class="lineno"> 466</span>  }</div>
|
|
<div class="line"><a name="l00467"></a><span class="lineno"> 467</span>  }</div>
|
|
<div class="line"><a name="l00468"></a><span class="lineno"> 468</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < nt; i++) {</div>
|
|
<div class="line"><a name="l00469"></a><span class="lineno"> 469</span>  asa[i].wait();</div>
|
|
<div class="line"><a name="l00470"></a><span class="lineno"> 470</span>  }</div>
|
|
<div class="line"><a name="l00471"></a><span class="lineno"> 471</span>  <a class="code" href="structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd">ntotal</a> += n;</div>
|
|
<div class="line"><a name="l00472"></a><span class="lineno"> 472</span> }</div>
|
|
<div class="line"><a name="l00473"></a><span class="lineno"> 473</span> </div>
|
|
<div class="line"><a name="l00474"></a><span class="lineno"> 474</span> </div>
|
|
<div class="line"><a name="l00475"></a><span class="lineno"> 475</span> </div>
|
|
<div class="line"><a name="l00476"></a><span class="lineno"> 476</span> </div>
|
|
<div class="line"><a name="l00477"></a><span class="lineno"> 477</span> </div>
|
|
<div class="line"><a name="l00478"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexShards.html#aa7dc5d020de4a0552058cbf2844cb00f"> 478</a></span> <span class="keywordtype">void</span> <a class="code" href="structfaiss_1_1IndexShards.html#aa7dc5d020de4a0552058cbf2844cb00f">IndexShards::reset</a> ()</div>
|
|
<div class="line"><a name="l00479"></a><span class="lineno"> 479</span> {</div>
|
|
<div class="line"><a name="l00480"></a><span class="lineno"> 480</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < shard_indexes.size(); i++) {</div>
|
|
<div class="line"><a name="l00481"></a><span class="lineno"> 481</span>  shard_indexes[i]->reset ();</div>
|
|
<div class="line"><a name="l00482"></a><span class="lineno"> 482</span>  }</div>
|
|
<div class="line"><a name="l00483"></a><span class="lineno"> 483</span>  sync_with_shard_indexes ();</div>
|
|
<div class="line"><a name="l00484"></a><span class="lineno"> 484</span> }</div>
|
|
<div class="line"><a name="l00485"></a><span class="lineno"> 485</span> </div>
|
|
<div class="line"><a name="l00486"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexShards.html#a83391295650370e8987358a898bb2cca"> 486</a></span> <span class="keywordtype">void</span> <a class="code" href="structfaiss_1_1IndexShards.html#a83391295650370e8987358a898bb2cca">IndexShards::search</a> (</div>
|
|
<div class="line"><a name="l00487"></a><span class="lineno"> 487</span>  idx_t n, <span class="keyword">const</span> <span class="keywordtype">float</span> *x, idx_t k,</div>
|
|
<div class="line"><a name="l00488"></a><span class="lineno"> 488</span>  <span class="keywordtype">float</span> *distances, idx_t *labels)<span class="keyword"> const</span></div>
|
|
<div class="line"><a name="l00489"></a><span class="lineno"> 489</span> <span class="keyword"></span>{</div>
|
|
<div class="line"><a name="l00490"></a><span class="lineno"> 490</span>  <span class="keywordtype">long</span> nshard = shard_indexes.size();</div>
|
|
<div class="line"><a name="l00491"></a><span class="lineno"> 491</span>  <span class="keywordtype">float</span> *all_distances = <span class="keyword">new</span> <span class="keywordtype">float</span> [nshard * k * n];</div>
|
|
<div class="line"><a name="l00492"></a><span class="lineno"> 492</span>  idx_t *all_labels = <span class="keyword">new</span> idx_t [nshard * k * n];</div>
|
|
<div class="line"><a name="l00493"></a><span class="lineno"> 493</span>  <a class="code" href="structfaiss_1_1ScopeDeleter.html">ScopeDeleter<float></a> del (all_distances);</div>
|
|
<div class="line"><a name="l00494"></a><span class="lineno"> 494</span>  <a class="code" href="structfaiss_1_1ScopeDeleter.html">ScopeDeleter<idx_t></a> del2 (all_labels);</div>
|
|
<div class="line"><a name="l00495"></a><span class="lineno"> 495</span> </div>
|
|
<div class="line"><a name="l00496"></a><span class="lineno"> 496</span> <span class="preprocessor">#if 1</span></div>
|
|
<div class="line"><a name="l00497"></a><span class="lineno"> 497</span> <span class="preprocessor"></span></div>
|
|
<div class="line"><a name="l00498"></a><span class="lineno"> 498</span>  <span class="comment">// pre-alloc because we don't want reallocs</span></div>
|
|
<div class="line"><a name="l00499"></a><span class="lineno"> 499</span>  std::vector<Thread<QueryJob> > qss (nshard);</div>
|
|
<div class="line"><a name="l00500"></a><span class="lineno"> 500</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < nshard; i++) {</div>
|
|
<div class="line"><a name="l00501"></a><span class="lineno"> 501</span>  QueryJob qs = {</div>
|
|
<div class="line"><a name="l00502"></a><span class="lineno"> 502</span>  <span class="keyword">this</span>, i, n, x, k,</div>
|
|
<div class="line"><a name="l00503"></a><span class="lineno"> 503</span>  all_distances + i * k * n,</div>
|
|
<div class="line"><a name="l00504"></a><span class="lineno"> 504</span>  all_labels + i * k * n</div>
|
|
<div class="line"><a name="l00505"></a><span class="lineno"> 505</span>  };</div>
|
|
<div class="line"><a name="l00506"></a><span class="lineno"> 506</span>  <span class="keywordflow">if</span> (<a class="code" href="structfaiss_1_1IndexShards.html#a493da171720f2c3f35058f793fb9a6ce">threaded</a>) {</div>
|
|
<div class="line"><a name="l00507"></a><span class="lineno"> 507</span>  qss[i] = Thread<QueryJob> (qs);</div>
|
|
<div class="line"><a name="l00508"></a><span class="lineno"> 508</span>  qss[i].start();</div>
|
|
<div class="line"><a name="l00509"></a><span class="lineno"> 509</span>  } <span class="keywordflow">else</span> {</div>
|
|
<div class="line"><a name="l00510"></a><span class="lineno"> 510</span>  qs.run();</div>
|
|
<div class="line"><a name="l00511"></a><span class="lineno"> 511</span>  }</div>
|
|
<div class="line"><a name="l00512"></a><span class="lineno"> 512</span>  }</div>
|
|
<div class="line"><a name="l00513"></a><span class="lineno"> 513</span> </div>
|
|
<div class="line"><a name="l00514"></a><span class="lineno"> 514</span>  <span class="keywordflow">if</span> (<a class="code" href="structfaiss_1_1IndexShards.html#a493da171720f2c3f35058f793fb9a6ce">threaded</a>) {</div>
|
|
<div class="line"><a name="l00515"></a><span class="lineno"> 515</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < qss.size(); i++) {</div>
|
|
<div class="line"><a name="l00516"></a><span class="lineno"> 516</span>  qss[i].wait();</div>
|
|
<div class="line"><a name="l00517"></a><span class="lineno"> 517</span>  }</div>
|
|
<div class="line"><a name="l00518"></a><span class="lineno"> 518</span>  }</div>
|
|
<div class="line"><a name="l00519"></a><span class="lineno"> 519</span> <span class="preprocessor">#else</span></div>
|
|
<div class="line"><a name="l00520"></a><span class="lineno"> 520</span> <span class="preprocessor"></span></div>
|
|
<div class="line"><a name="l00521"></a><span class="lineno"> 521</span>  <span class="comment">// pre-alloc because we don't want reallocs</span></div>
|
|
<div class="line"><a name="l00522"></a><span class="lineno"> 522</span>  std::vector<QueryJob> qss (nshard);</div>
|
|
<div class="line"><a name="l00523"></a><span class="lineno"> 523</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < nshard; i++) {</div>
|
|
<div class="line"><a name="l00524"></a><span class="lineno"> 524</span>  QueryJob qs = {</div>
|
|
<div class="line"><a name="l00525"></a><span class="lineno"> 525</span>  <span class="keyword">this</span>, i, n, x, k,</div>
|
|
<div class="line"><a name="l00526"></a><span class="lineno"> 526</span>  all_distances + i * k * n,</div>
|
|
<div class="line"><a name="l00527"></a><span class="lineno"> 527</span>  all_labels + i * k * n</div>
|
|
<div class="line"><a name="l00528"></a><span class="lineno"> 528</span>  };</div>
|
|
<div class="line"><a name="l00529"></a><span class="lineno"> 529</span>  <span class="keywordflow">if</span> (<a class="code" href="structfaiss_1_1IndexShards.html#a493da171720f2c3f35058f793fb9a6ce">threaded</a>) {</div>
|
|
<div class="line"><a name="l00530"></a><span class="lineno"> 530</span>  qss[i] = qs;</div>
|
|
<div class="line"><a name="l00531"></a><span class="lineno"> 531</span>  } <span class="keywordflow">else</span> {</div>
|
|
<div class="line"><a name="l00532"></a><span class="lineno"> 532</span>  qs.run();</div>
|
|
<div class="line"><a name="l00533"></a><span class="lineno"> 533</span>  }</div>
|
|
<div class="line"><a name="l00534"></a><span class="lineno"> 534</span>  }</div>
|
|
<div class="line"><a name="l00535"></a><span class="lineno"> 535</span> </div>
|
|
<div class="line"><a name="l00536"></a><span class="lineno"> 536</span>  <span class="keywordflow">if</span> (<a class="code" href="structfaiss_1_1IndexShards.html#a493da171720f2c3f35058f793fb9a6ce">threaded</a>) {</div>
|
|
<div class="line"><a name="l00537"></a><span class="lineno"> 537</span> <span class="preprocessor">#pragma omp parallel for</span></div>
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<div class="line"><a name="l00538"></a><span class="lineno"> 538</span> <span class="preprocessor"></span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < qss.size(); i++) {</div>
|
|
<div class="line"><a name="l00539"></a><span class="lineno"> 539</span>  qss[i].run();</div>
|
|
<div class="line"><a name="l00540"></a><span class="lineno"> 540</span>  }</div>
|
|
<div class="line"><a name="l00541"></a><span class="lineno"> 541</span>  }</div>
|
|
<div class="line"><a name="l00542"></a><span class="lineno"> 542</span> </div>
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|
<div class="line"><a name="l00543"></a><span class="lineno"> 543</span> <span class="preprocessor">#endif</span></div>
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<div class="line"><a name="l00544"></a><span class="lineno"> 544</span> <span class="preprocessor"></span> std::vector<long> translations (nshard, 0);</div>
|
|
<div class="line"><a name="l00545"></a><span class="lineno"> 545</span>  <span class="keywordflow">if</span> (successive_ids) {</div>
|
|
<div class="line"><a name="l00546"></a><span class="lineno"> 546</span>  translations[0] = 0;</div>
|
|
<div class="line"><a name="l00547"></a><span class="lineno"> 547</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> s = 0; s + 1 < nshard; s++)</div>
|
|
<div class="line"><a name="l00548"></a><span class="lineno"> 548</span>  translations [s + 1] = translations [s] +</div>
|
|
<div class="line"><a name="l00549"></a><span class="lineno"> 549</span>  shard_indexes [s]-><a class="code" href="structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd">ntotal</a>;</div>
|
|
<div class="line"><a name="l00550"></a><span class="lineno"> 550</span>  }</div>
|
|
<div class="line"><a name="l00551"></a><span class="lineno"> 551</span> </div>
|
|
<div class="line"><a name="l00552"></a><span class="lineno"> 552</span>  <span class="keywordflow">if</span> (<a class="code" href="structfaiss_1_1Index.html#a8e18f641854b2bde83ecff0a2f9a6f4e">metric_type</a> == METRIC_L2) {</div>
|
|
<div class="line"><a name="l00553"></a><span class="lineno"> 553</span>  merge_tables< CMin<float, int> > (</div>
|
|
<div class="line"><a name="l00554"></a><span class="lineno"> 554</span>  n, k, nshard, distances, labels,</div>
|
|
<div class="line"><a name="l00555"></a><span class="lineno"> 555</span>  all_distances, all_labels, translations.data ());</div>
|
|
<div class="line"><a name="l00556"></a><span class="lineno"> 556</span>  } <span class="keywordflow">else</span> {</div>
|
|
<div class="line"><a name="l00557"></a><span class="lineno"> 557</span>  merge_tables< CMax<float, int> > (</div>
|
|
<div class="line"><a name="l00558"></a><span class="lineno"> 558</span>  n, k, nshard, distances, labels,</div>
|
|
<div class="line"><a name="l00559"></a><span class="lineno"> 559</span>  all_distances, all_labels, translations.data ());</div>
|
|
<div class="line"><a name="l00560"></a><span class="lineno"> 560</span>  }</div>
|
|
<div class="line"><a name="l00561"></a><span class="lineno"> 561</span> </div>
|
|
<div class="line"><a name="l00562"></a><span class="lineno"> 562</span> }</div>
|
|
<div class="line"><a name="l00563"></a><span class="lineno"> 563</span> </div>
|
|
<div class="line"><a name="l00564"></a><span class="lineno"> 564</span> </div>
|
|
<div class="line"><a name="l00565"></a><span class="lineno"> 565</span> </div>
|
|
<div class="line"><a name="l00566"></a><span class="lineno"> 566</span> IndexShards::~IndexShards ()</div>
|
|
<div class="line"><a name="l00567"></a><span class="lineno"> 567</span> {</div>
|
|
<div class="line"><a name="l00568"></a><span class="lineno"> 568</span>  <span class="keywordflow">if</span> (own_fields) {</div>
|
|
<div class="line"><a name="l00569"></a><span class="lineno"> 569</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> s = 0; s < shard_indexes.size(); s++)</div>
|
|
<div class="line"><a name="l00570"></a><span class="lineno"> 570</span>  <span class="keyword">delete</span> shard_indexes [s];</div>
|
|
<div class="line"><a name="l00571"></a><span class="lineno"> 571</span>  }</div>
|
|
<div class="line"><a name="l00572"></a><span class="lineno"> 572</span> }</div>
|
|
<div class="line"><a name="l00573"></a><span class="lineno"> 573</span> </div>
|
|
<div class="line"><a name="l00574"></a><span class="lineno"> 574</span> </div>
|
|
<div class="line"><a name="l00575"></a><span class="lineno"> 575</span> <span class="comment">/*****************************************************</span></div>
|
|
<div class="line"><a name="l00576"></a><span class="lineno"> 576</span> <span class="comment"> * IndexSplitVectors implementation</span></div>
|
|
<div class="line"><a name="l00577"></a><span class="lineno"> 577</span> <span class="comment"> *******************************************************/</span></div>
|
|
<div class="line"><a name="l00578"></a><span class="lineno"> 578</span> </div>
|
|
<div class="line"><a name="l00579"></a><span class="lineno"> 579</span> </div>
|
|
<div class="line"><a name="l00580"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexSplitVectors.html#a70ba3367a08722fe4466dc49c21a4d2b"> 580</a></span> <a class="code" href="structfaiss_1_1IndexSplitVectors.html#a70ba3367a08722fe4466dc49c21a4d2b">IndexSplitVectors::IndexSplitVectors</a> (idx_t d, <span class="keywordtype">bool</span> threaded):</div>
|
|
<div class="line"><a name="l00581"></a><span class="lineno"> 581</span>  <a class="code" href="structfaiss_1_1Index.html">Index</a> (d), own_fields (false),</div>
|
|
<div class="line"><a name="l00582"></a><span class="lineno"> 582</span>  threaded (threaded), sum_d (0)</div>
|
|
<div class="line"><a name="l00583"></a><span class="lineno"> 583</span> {</div>
|
|
<div class="line"><a name="l00584"></a><span class="lineno"> 584</span> </div>
|
|
<div class="line"><a name="l00585"></a><span class="lineno"> 585</span> }</div>
|
|
<div class="line"><a name="l00586"></a><span class="lineno"> 586</span> </div>
|
|
<div class="line"><a name="l00587"></a><span class="lineno"> 587</span> <span class="keywordtype">void</span> IndexSplitVectors::add_sub_index (<a class="code" href="structfaiss_1_1Index.html">Index</a> *index)</div>
|
|
<div class="line"><a name="l00588"></a><span class="lineno"> 588</span> {</div>
|
|
<div class="line"><a name="l00589"></a><span class="lineno"> 589</span>  sub_indexes.push_back (index);</div>
|
|
<div class="line"><a name="l00590"></a><span class="lineno"> 590</span>  sync_with_sub_indexes ();</div>
|
|
<div class="line"><a name="l00591"></a><span class="lineno"> 591</span> }</div>
|
|
<div class="line"><a name="l00592"></a><span class="lineno"> 592</span> </div>
|
|
<div class="line"><a name="l00593"></a><span class="lineno"> 593</span> <span class="keywordtype">void</span> IndexSplitVectors::sync_with_sub_indexes ()</div>
|
|
<div class="line"><a name="l00594"></a><span class="lineno"> 594</span> {</div>
|
|
<div class="line"><a name="l00595"></a><span class="lineno"> 595</span>  <span class="keywordflow">if</span> (sub_indexes.empty()) <span class="keywordflow">return</span>;</div>
|
|
<div class="line"><a name="l00596"></a><span class="lineno"> 596</span>  Index * index0 = sub_indexes[0];</div>
|
|
<div class="line"><a name="l00597"></a><span class="lineno"> 597</span>  sum_d = index0->d;</div>
|
|
<div class="line"><a name="l00598"></a><span class="lineno"> 598</span>  <a class="code" href="structfaiss_1_1Index.html#a8e18f641854b2bde83ecff0a2f9a6f4e">metric_type</a> = index0->metric_type;</div>
|
|
<div class="line"><a name="l00599"></a><span class="lineno"> 599</span>  <a class="code" href="structfaiss_1_1Index.html#a6e92732617c4dbe364e7678dd8773a7f">is_trained</a> = index0->is_trained;</div>
|
|
<div class="line"><a name="l00600"></a><span class="lineno"> 600</span>  <a class="code" href="structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd">ntotal</a> = index0->ntotal;</div>
|
|
<div class="line"><a name="l00601"></a><span class="lineno"> 601</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 1; i < sub_indexes.size(); i++) {</div>
|
|
<div class="line"><a name="l00602"></a><span class="lineno"> 602</span>  Index * index = sub_indexes[i];</div>
|
|
<div class="line"><a name="l00603"></a><span class="lineno"> 603</span>  FAISS_THROW_IF_NOT (<a class="code" href="structfaiss_1_1Index.html#a8e18f641854b2bde83ecff0a2f9a6f4e">metric_type</a> == index->metric_type);</div>
|
|
<div class="line"><a name="l00604"></a><span class="lineno"> 604</span>  FAISS_THROW_IF_NOT (<a class="code" href="structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd">ntotal</a> == index->ntotal);</div>
|
|
<div class="line"><a name="l00605"></a><span class="lineno"> 605</span>  sum_d += index->d;</div>
|
|
<div class="line"><a name="l00606"></a><span class="lineno"> 606</span>  }</div>
|
|
<div class="line"><a name="l00607"></a><span class="lineno"> 607</span> </div>
|
|
<div class="line"><a name="l00608"></a><span class="lineno"> 608</span> }</div>
|
|
<div class="line"><a name="l00609"></a><span class="lineno"> 609</span> </div>
|
|
<div class="line"><a name="l00610"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexSplitVectors.html#af2ef88dc72b4a94f1190ecc8cb25881b"> 610</a></span> <span class="keywordtype">void</span> <a class="code" href="structfaiss_1_1IndexSplitVectors.html#af2ef88dc72b4a94f1190ecc8cb25881b">IndexSplitVectors::add</a>(idx_t <span class="comment">/*n*/</span>, <span class="keyword">const</span> <span class="keywordtype">float</span>* <span class="comment">/*x*/</span>) {</div>
|
|
<div class="line"><a name="l00611"></a><span class="lineno"> 611</span>  FAISS_THROW_MSG(<span class="stringliteral">"not implemented"</span>);</div>
|
|
<div class="line"><a name="l00612"></a><span class="lineno"> 612</span> }</div>
|
|
<div class="line"><a name="l00613"></a><span class="lineno"> 613</span> </div>
|
|
<div class="line"><a name="l00614"></a><span class="lineno"> 614</span> <span class="keyword">namespace </span>{</div>
|
|
<div class="line"><a name="l00615"></a><span class="lineno"> 615</span> <span class="comment"></span></div>
|
|
<div class="line"><a name="l00616"></a><span class="lineno"> 616</span> <span class="comment">/// callback + thread management to query in 1 shard</span></div>
|
|
<div class="line"><a name="l00617"></a><span class="lineno"> 617</span> <span class="comment"></span><span class="keyword">struct </span>SplitQueryJob {</div>
|
|
<div class="line"><a name="l00618"></a><span class="lineno"> 618</span>  <span class="keyword">const</span> <a class="code" href="structfaiss_1_1IndexSplitVectors.html">IndexSplitVectors</a> *index; <span class="comment">// the relevant index</span></div>
|
|
<div class="line"><a name="l00619"></a><span class="lineno"> 619</span>  <span class="keywordtype">int</span> no; <span class="comment">// shard number</span></div>
|
|
<div class="line"><a name="l00620"></a><span class="lineno"> 620</span> </div>
|
|
<div class="line"><a name="l00621"></a><span class="lineno"> 621</span>  <span class="comment">// query params</span></div>
|
|
<div class="line"><a name="l00622"></a><span class="lineno"> 622</span>  idx_t n;</div>
|
|
<div class="line"><a name="l00623"></a><span class="lineno"> 623</span>  <span class="keyword">const</span> <span class="keywordtype">float</span> *x;</div>
|
|
<div class="line"><a name="l00624"></a><span class="lineno"> 624</span>  idx_t k;</div>
|
|
<div class="line"><a name="l00625"></a><span class="lineno"> 625</span>  <span class="keywordtype">float</span> *distances;</div>
|
|
<div class="line"><a name="l00626"></a><span class="lineno"> 626</span>  idx_t *labels;</div>
|
|
<div class="line"><a name="l00627"></a><span class="lineno"> 627</span> </div>
|
|
<div class="line"><a name="l00628"></a><span class="lineno"> 628</span> </div>
|
|
<div class="line"><a name="l00629"></a><span class="lineno"> 629</span>  <span class="keywordtype">void</span> run ()</div>
|
|
<div class="line"><a name="l00630"></a><span class="lineno"> 630</span>  {</div>
|
|
<div class="line"><a name="l00631"></a><span class="lineno"> 631</span>  <span class="keywordflow">if</span> (index-><a class="code" href="structfaiss_1_1Index.html#a5590d847c5c2b958affd2a05e58a6f23">verbose</a>)</div>
|
|
<div class="line"><a name="l00632"></a><span class="lineno"> 632</span>  printf (<span class="stringliteral">"begin query shard %d on %ld points\n"</span>, no, n);</div>
|
|
<div class="line"><a name="l00633"></a><span class="lineno"> 633</span>  <span class="keyword">const</span> <a class="code" href="structfaiss_1_1Index.html">Index</a> * sub_index = index->sub_indexes[no];</div>
|
|
<div class="line"><a name="l00634"></a><span class="lineno"> 634</span>  <span class="keywordtype">long</span> sub_d = sub_index-><a class="code" href="structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d">d</a>, d = index-><a class="code" href="structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d">d</a>;</div>
|
|
<div class="line"><a name="l00635"></a><span class="lineno"> 635</span>  idx_t ofs = 0;</div>
|
|
<div class="line"><a name="l00636"></a><span class="lineno"> 636</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < no; i++) ofs += index->sub_indexes[i]-><a class="code" href="structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d">d</a>;</div>
|
|
<div class="line"><a name="l00637"></a><span class="lineno"> 637</span>  <span class="keywordtype">float</span> *sub_x = <span class="keyword">new</span> <span class="keywordtype">float</span> [sub_d * n];</div>
|
|
<div class="line"><a name="l00638"></a><span class="lineno"> 638</span>  <a class="code" href="structfaiss_1_1ScopeDeleter.html">ScopeDeleter<float></a> del (sub_x);</div>
|
|
<div class="line"><a name="l00639"></a><span class="lineno"> 639</span>  <span class="keywordflow">for</span> (idx_t i = 0; i < n; i++)</div>
|
|
<div class="line"><a name="l00640"></a><span class="lineno"> 640</span>  memcpy (sub_x + i * sub_d, x + ofs + i * d, sub_d * <span class="keyword">sizeof</span> (sub_x));</div>
|
|
<div class="line"><a name="l00641"></a><span class="lineno"> 641</span>  sub_index-><a class="code" href="structfaiss_1_1Index.html#aced51b1ebc33c47ab3ae15ea906559a7">search</a> (n, sub_x, k, distances, labels);</div>
|
|
<div class="line"><a name="l00642"></a><span class="lineno"> 642</span>  <span class="keywordflow">if</span> (index-><a class="code" href="structfaiss_1_1Index.html#a5590d847c5c2b958affd2a05e58a6f23">verbose</a>)</div>
|
|
<div class="line"><a name="l00643"></a><span class="lineno"> 643</span>  printf (<span class="stringliteral">"end query shard %d\n"</span>, no);</div>
|
|
<div class="line"><a name="l00644"></a><span class="lineno"> 644</span>  }</div>
|
|
<div class="line"><a name="l00645"></a><span class="lineno"> 645</span> </div>
|
|
<div class="line"><a name="l00646"></a><span class="lineno"> 646</span> };</div>
|
|
<div class="line"><a name="l00647"></a><span class="lineno"> 647</span> </div>
|
|
<div class="line"><a name="l00648"></a><span class="lineno"> 648</span> </div>
|
|
<div class="line"><a name="l00649"></a><span class="lineno"> 649</span> </div>
|
|
<div class="line"><a name="l00650"></a><span class="lineno"> 650</span> }</div>
|
|
<div class="line"><a name="l00651"></a><span class="lineno"> 651</span> </div>
|
|
<div class="line"><a name="l00652"></a><span class="lineno"> 652</span> </div>
|
|
<div class="line"><a name="l00653"></a><span class="lineno"> 653</span> </div>
|
|
<div class="line"><a name="l00654"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexSplitVectors.html#a4a010daf51e44d9717e94400cc23c159"> 654</a></span> <span class="keywordtype">void</span> <a class="code" href="structfaiss_1_1IndexSplitVectors.html#a4a010daf51e44d9717e94400cc23c159">IndexSplitVectors::search</a> (</div>
|
|
<div class="line"><a name="l00655"></a><span class="lineno"> 655</span>  idx_t n, <span class="keyword">const</span> <span class="keywordtype">float</span> *x, idx_t k,</div>
|
|
<div class="line"><a name="l00656"></a><span class="lineno"> 656</span>  <span class="keywordtype">float</span> *distances, idx_t *labels)<span class="keyword"> const</span></div>
|
|
<div class="line"><a name="l00657"></a><span class="lineno"> 657</span> <span class="keyword"></span>{</div>
|
|
<div class="line"><a name="l00658"></a><span class="lineno"> 658</span>  FAISS_THROW_IF_NOT_MSG (k == 1,</div>
|
|
<div class="line"><a name="l00659"></a><span class="lineno"> 659</span>  <span class="stringliteral">"search implemented only for k=1"</span>);</div>
|
|
<div class="line"><a name="l00660"></a><span class="lineno"> 660</span>  FAISS_THROW_IF_NOT_MSG (sum_d == d,</div>
|
|
<div class="line"><a name="l00661"></a><span class="lineno"> 661</span>  <span class="stringliteral">"not enough indexes compared to # dimensions"</span>);</div>
|
|
<div class="line"><a name="l00662"></a><span class="lineno"> 662</span> </div>
|
|
<div class="line"><a name="l00663"></a><span class="lineno"> 663</span>  <span class="keywordtype">long</span> nshard = sub_indexes.size();</div>
|
|
<div class="line"><a name="l00664"></a><span class="lineno"> 664</span>  <span class="keywordtype">float</span> *all_distances = <span class="keyword">new</span> <span class="keywordtype">float</span> [nshard * k * n];</div>
|
|
<div class="line"><a name="l00665"></a><span class="lineno"> 665</span>  idx_t *all_labels = <span class="keyword">new</span> idx_t [nshard * k * n];</div>
|
|
<div class="line"><a name="l00666"></a><span class="lineno"> 666</span>  <a class="code" href="structfaiss_1_1ScopeDeleter.html">ScopeDeleter<float></a> del (all_distances);</div>
|
|
<div class="line"><a name="l00667"></a><span class="lineno"> 667</span>  <a class="code" href="structfaiss_1_1ScopeDeleter.html">ScopeDeleter<idx_t></a> del2 (all_labels);</div>
|
|
<div class="line"><a name="l00668"></a><span class="lineno"> 668</span> </div>
|
|
<div class="line"><a name="l00669"></a><span class="lineno"> 669</span>  <span class="comment">// pre-alloc because we don't want reallocs</span></div>
|
|
<div class="line"><a name="l00670"></a><span class="lineno"> 670</span>  std::vector<Thread<SplitQueryJob> > qss (nshard);</div>
|
|
<div class="line"><a name="l00671"></a><span class="lineno"> 671</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < nshard; i++) {</div>
|
|
<div class="line"><a name="l00672"></a><span class="lineno"> 672</span>  SplitQueryJob qs = {</div>
|
|
<div class="line"><a name="l00673"></a><span class="lineno"> 673</span>  <span class="keyword">this</span>, i, n, x, k,</div>
|
|
<div class="line"><a name="l00674"></a><span class="lineno"> 674</span>  i == 0 ? distances : all_distances + i * k * n,</div>
|
|
<div class="line"><a name="l00675"></a><span class="lineno"> 675</span>  i == 0 ? labels : all_labels + i * k * n</div>
|
|
<div class="line"><a name="l00676"></a><span class="lineno"> 676</span>  };</div>
|
|
<div class="line"><a name="l00677"></a><span class="lineno"> 677</span>  <span class="keywordflow">if</span> (threaded) {</div>
|
|
<div class="line"><a name="l00678"></a><span class="lineno"> 678</span>  qss[i] = Thread<SplitQueryJob> (qs);</div>
|
|
<div class="line"><a name="l00679"></a><span class="lineno"> 679</span>  qss[i].start();</div>
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|
<div class="line"><a name="l00680"></a><span class="lineno"> 680</span>  } <span class="keywordflow">else</span> {</div>
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<div class="line"><a name="l00681"></a><span class="lineno"> 681</span>  qs.run();</div>
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<div class="line"><a name="l00682"></a><span class="lineno"> 682</span>  }</div>
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<div class="line"><a name="l00683"></a><span class="lineno"> 683</span>  }</div>
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<div class="line"><a name="l00684"></a><span class="lineno"> 684</span> </div>
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<div class="line"><a name="l00685"></a><span class="lineno"> 685</span>  <span class="keywordflow">if</span> (threaded) {</div>
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<div class="line"><a name="l00686"></a><span class="lineno"> 686</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < qss.size(); i++) {</div>
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<div class="line"><a name="l00687"></a><span class="lineno"> 687</span>  qss[i].wait();</div>
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<div class="line"><a name="l00688"></a><span class="lineno"> 688</span>  }</div>
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<div class="line"><a name="l00689"></a><span class="lineno"> 689</span>  }</div>
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<div class="line"><a name="l00690"></a><span class="lineno"> 690</span> </div>
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<div class="line"><a name="l00691"></a><span class="lineno"> 691</span>  <span class="keywordtype">long</span> factor = 1;</div>
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<div class="line"><a name="l00692"></a><span class="lineno"> 692</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="l00693"></a><span class="lineno"> 693</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="l00694"></a><span class="lineno"> 694</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="l00695"></a><span class="lineno"> 695</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="l00696"></a><span class="lineno"> 696</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="l00697"></a><span class="lineno"> 697</span>  <span class="keywordflow">if</span> (labels[j] >= 0 && labels_i[j] >= 0) {</div>
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<div class="line"><a name="l00698"></a><span class="lineno"> 698</span>  labels[j] += labels_i[j] * factor;</div>
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<div class="line"><a name="l00699"></a><span class="lineno"> 699</span>  distances[j] += distances_i[j];</div>
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<div class="line"><a name="l00700"></a><span class="lineno"> 700</span>  } <span class="keywordflow">else</span> {</div>
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<div class="line"><a name="l00701"></a><span class="lineno"> 701</span>  labels[j] = -1;</div>
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<div class="line"><a name="l00702"></a><span class="lineno"> 702</span>  distances[j] = 0.0 / 0.0;</div>
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<div class="line"><a name="l00703"></a><span class="lineno"> 703</span>  }</div>
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<div class="line"><a name="l00704"></a><span class="lineno"> 704</span>  }</div>
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<div class="line"><a name="l00705"></a><span class="lineno"> 705</span>  }</div>
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<div class="line"><a name="l00706"></a><span class="lineno"> 706</span>  factor *= sub_indexes[i]->ntotal;</div>
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<div class="line"><a name="l00707"></a><span class="lineno"> 707</span>  }</div>
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<div class="line"><a name="l00708"></a><span class="lineno"> 708</span> </div>
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<div class="line"><a name="l00709"></a><span class="lineno"> 709</span> }</div>
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<div class="line"><a name="l00710"></a><span class="lineno"> 710</span> </div>
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<div class="line"><a name="l00711"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexSplitVectors.html#aafa4c780e325855fe247052453967845"> 711</a></span> <span class="keywordtype">void</span> <a class="code" href="structfaiss_1_1IndexSplitVectors.html#aafa4c780e325855fe247052453967845">IndexSplitVectors::train</a>(idx_t <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="l00712"></a><span class="lineno"> 712</span>  FAISS_THROW_MSG(<span class="stringliteral">"not implemented"</span>);</div>
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<div class="line"><a name="l00713"></a><span class="lineno"> 713</span> }</div>
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<div class="line"><a name="l00714"></a><span class="lineno"> 714</span> </div>
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<div class="line"><a name="l00715"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexSplitVectors.html#a8047981cb8d10c54107664c4955df402"> 715</a></span> <span class="keywordtype">void</span> <a class="code" href="structfaiss_1_1IndexSplitVectors.html#a8047981cb8d10c54107664c4955df402">IndexSplitVectors::reset</a> ()</div>
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<div class="line"><a name="l00716"></a><span class="lineno"> 716</span> {</div>
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<div class="line"><a name="l00717"></a><span class="lineno"> 717</span>  FAISS_THROW_MSG (<span class="stringliteral">"not implemented"</span>);</div>
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<div class="line"><a name="l00718"></a><span class="lineno"> 718</span> }</div>
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<div class="line"><a name="l00719"></a><span class="lineno"> 719</span> </div>
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<div class="line"><a name="l00720"></a><span class="lineno"> 720</span> </div>
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<div class="line"><a name="l00721"></a><span class="lineno"> 721</span> IndexSplitVectors::~IndexSplitVectors ()</div>
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<div class="line"><a name="l00722"></a><span class="lineno"> 722</span> {</div>
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<div class="line"><a name="l00723"></a><span class="lineno"> 723</span>  <span class="keywordflow">if</span> (own_fields) {</div>
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<div class="line"><a name="l00724"></a><span class="lineno"> 724</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="l00725"></a><span class="lineno"> 725</span>  <span class="keyword">delete</span> sub_indexes [s];</div>
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<div class="line"><a name="l00726"></a><span class="lineno"> 726</span>  }</div>
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<div class="line"><a name="l00727"></a><span class="lineno"> 727</span> }</div>
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<div class="line"><a name="l00728"></a><span class="lineno"> 728</span> </div>
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<div class="line"><a name="l00729"></a><span class="lineno"> 729</span> </div>
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<div class="line"><a name="l00730"></a><span class="lineno"> 730</span> </div>
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<div class="line"><a name="l00731"></a><span class="lineno"> 731</span> </div>
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<div class="line"><a name="l00732"></a><span class="lineno"> 732</span> </div>
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<div class="line"><a name="l00733"></a><span class="lineno"> 733</span> </div>
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<div class="line"><a name="l00734"></a><span class="lineno"> 734</span> }; <span class="comment">// namespace faiss</span></div>
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<div class="ttc" id="structfaiss_1_1IndexShards_html_a36fbcc85eed9bf2ea15587f04be9ae0b"><div class="ttname"><a href="structfaiss_1_1IndexShards.html#a36fbcc85eed9bf2ea15587f04be9ae0b">faiss::IndexShards::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#l00385">MetaIndexes.cpp:385</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexShards_html_ad987a18a1786919e32cc02ca36e5ab46"><div class="ttname"><a href="structfaiss_1_1IndexShards.html#ad987a18a1786919e32cc02ca36e5ab46">faiss::IndexShards::IndexShards</a></div><div class="ttdeci">IndexShards(idx_t d, bool threaded=false, bool successive_ids=true)</div><div class="ttdef"><b>Definition:</b> <a href="MetaIndexes_8cpp_source.html#l00355">MetaIndexes.cpp:355</a></div></div>
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<div class="ttc" id="structfaiss_1_1Index_html_a849361f5f0ab0aba8d419c86f2594191"><div class="ttname"><a href="structfaiss_1_1Index.html#a849361f5f0ab0aba8d419c86f2594191">faiss::Index::reset</a></div><div class="ttdeci">virtual void reset()=0</div><div class="ttdoc">removes all elements from the database. </div></div>
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<div class="ttc" id="structfaiss_1_1Index_html_a1ffe916c958605c38b0b1bfad42485e4"><div class="ttname"><a href="structfaiss_1_1Index.html#a1ffe916c958605c38b0b1bfad42485e4">faiss::Index::train</a></div><div class="ttdeci">virtual void train(idx_t, const float *)</div><div class="ttdef"><b>Definition:</b> <a href="Index_8h_source.html#l00089">Index.h:89</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#l00069">MetaIndexes.cpp:69</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexShards_html_a1f771d50133494f682f05c9ab9e39ad9"><div class="ttname"><a href="structfaiss_1_1IndexShards.html#a1f771d50133494f682f05c9ab9e39ad9">faiss::IndexShards::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#l00425">MetaIndexes.cpp:425</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#l00052">AuxIndexStructures.h:52</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexShards_html_a83391295650370e8987358a898bb2cca"><div class="ttname"><a href="structfaiss_1_1IndexShards.html#a83391295650370e8987358a898bb2cca">faiss::IndexShards::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#l00486">MetaIndexes.cpp:486</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#l00130">MetaIndexes.cpp:130</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#l00039">FaissException.h:39</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexSplitVectors_html_a8047981cb8d10c54107664c4955df402"><div class="ttname"><a href="structfaiss_1_1IndexSplitVectors.html#a8047981cb8d10c54107664c4955df402">faiss::IndexSplitVectors::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#l00715">MetaIndexes.cpp:715</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#l00040">MetaIndexes.cpp:40</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#l00131">MetaIndexes.h:131</a></div></div>
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<div class="ttc" id="structfaiss_1_1Index_html_a2a002388d2c081c2dbab8508dcefe73d"><div class="ttname"><a href="structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d">faiss::Index::d</a></div><div class="ttdeci">int d</div><div class="ttdoc">vector dimension </div><div class="ttdef"><b>Definition:</b> <a href="Index_8h_source.html#l00064">Index.h:64</a></div></div>
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<div class="ttc" id="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#l00029">MetaIndexes.h:29</a></div></div>
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<div class="ttc" id="structfaiss_1_1Index_html_a1b5e9ac70adbce0897dd6c8276ad96f2"><div class="ttname"><a href="structfaiss_1_1Index.html#a1b5e9ac70adbce0897dd6c8276ad96f2">faiss::Index::add</a></div><div class="ttdeci">virtual void add(idx_t n, const float *x)=0</div></div>
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<div class="ttc" id="structfaiss_1_1IndexSplitVectors_html_aafa4c780e325855fe247052453967845"><div class="ttname"><a href="structfaiss_1_1IndexSplitVectors.html#aafa4c780e325855fe247052453967845">faiss::IndexSplitVectors::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#l00711">MetaIndexes.cpp:711</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexShards_html_a2e06889521c566525011eb46cc97cda6"><div class="ttname"><a href="structfaiss_1_1IndexShards.html#a2e06889521c566525011eb46cc97cda6">faiss::IndexShards::add</a></div><div class="ttdeci">void add(idx_t n, const float *x) override</div><div class="ttdoc">supported only for sub-indices that implement add_with_ids </div><div class="ttdef"><b>Definition:</b> <a href="MetaIndexes_8cpp_source.html#l00408">MetaIndexes.cpp:408</a></div></div>
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<div class="ttc" id="structfaiss_1_1Index_html_a040c6aed1f224f3ea7bf58eebc0c31a4"><div class="ttname"><a href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">faiss::Index::idx_t</a></div><div class="ttdeci">long idx_t</div><div class="ttdoc">all indices are this type </div><div class="ttdef"><b>Definition:</b> <a href="Index_8h_source.html#l00062">Index.h:62</a></div></div>
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<div class="ttc" id="structfaiss_1_1Index_html_a6970683faa021b7a6f1a0865c0d4eccd"><div class="ttname"><a href="structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd">faiss::Index::ntotal</a></div><div class="ttdeci">idx_t ntotal</div><div class="ttdoc">total nb of indexed vectors </div><div class="ttdef"><b>Definition:</b> <a href="Index_8h_source.html#l00065">Index.h:65</a></div></div>
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<div class="ttc" id="structfaiss_1_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#l00139">MetaIndexes.cpp:139</a></div></div>
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<div class="ttc" id="structfaiss_1_1Index_html_a5590d847c5c2b958affd2a05e58a6f23"><div class="ttname"><a href="structfaiss_1_1Index.html#a5590d847c5c2b958affd2a05e58a6f23">faiss::Index::verbose</a></div><div class="ttdeci">bool verbose</div><div class="ttdoc">verbosity level </div><div class="ttdef"><b>Definition:</b> <a href="Index_8h_source.html#l00066">Index.h:66</a></div></div>
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<div class="ttc" id="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#l00610">MetaIndexes.cpp:610</a></div></div>
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<div class="ttc" id="structfaiss_1_1Index_html_af8bf7bd97aeed8ad5fc48b242379a68a"><div class="ttname"><a href="structfaiss_1_1Index.html#af8bf7bd97aeed8ad5fc48b242379a68a">faiss::Index::remove_ids</a></div><div class="ttdeci">virtual long remove_ids(const IDSelector &sel)</div><div class="ttdef"><b>Definition:</b> <a href="Index_8cpp_source.html#l00037">Index.cpp:37</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#l00148">MetaIndexes.cpp:148</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexShards_html_a493da171720f2c3f35058f793fb9a6ce"><div class="ttname"><a href="structfaiss_1_1IndexShards.html#a493da171720f2c3f35058f793fb9a6ce">faiss::IndexShards::threaded</a></div><div class="ttdeci">bool threaded</div><div class="ttdoc">should the sub-indexes be deleted along with this? </div><div class="ttdef"><b>Definition:</b> <a href="MetaIndexes_8h_source.html#l00087">MetaIndexes.h:87</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_1IndexShards_html_aa7dc5d020de4a0552058cbf2844cb00f"><div class="ttname"><a href="structfaiss_1_1IndexShards.html#aa7dc5d020de4a0552058cbf2844cb00f">faiss::IndexShards::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#l00478">MetaIndexes.cpp:478</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#l00053">MetaIndexes.cpp:53</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#l00654">MetaIndexes.cpp:654</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#l00095">MetaIndexes.cpp:95</a></div></div>
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<div class="ttc" id="structfaiss_1_1Index_html_a8e18f641854b2bde83ecff0a2f9a6f4e"><div class="ttname"><a href="structfaiss_1_1Index.html#a8e18f641854b2bde83ecff0a2f9a6f4e">faiss::Index::metric_type</a></div><div class="ttdeci">MetricType metric_type</div><div class="ttdoc">type of metric this index uses for search </div><div class="ttdef"><b>Definition:</b> <a href="Index_8h_source.html#l00072">Index.h:72</a></div></div>
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<div class="ttc" id="structfaiss_1_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#l00156">MetaIndexes.cpp:156</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#l00047">MetaIndexes.cpp:47</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#l00060">Index.h:60</a></div></div>
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<div class="ttc" id="structfaiss_1_1Index_html_a6e92732617c4dbe364e7678dd8773a7f"><div class="ttname"><a href="structfaiss_1_1Index.html#a6e92732617c4dbe364e7678dd8773a7f">faiss::Index::is_trained</a></div><div class="ttdeci">bool is_trained</div><div class="ttdoc">set if the Index does not require training, or if training is done already </div><div class="ttdef"><b>Definition:</b> <a href="Index_8h_source.html#l00069">Index.h:69</a></div></div>
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<div class="ttc" id="structfaiss_1_1Index_html_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#l00043">Index.cpp:43</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#l00060">MetaIndexes.cpp:60</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#l00580">MetaIndexes.cpp:580</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexIDMap_html_affa8a764304410c96489c2b2e178bcdb"><div class="ttname"><a href="structfaiss_1_1IndexIDMap.html#affa8a764304410c96489c2b2e178bcdb">faiss::IndexIDMap::own_fields</a></div><div class="ttdeci">bool own_fields</div><div class="ttdoc">! the sub-index </div><div class="ttdef"><b>Definition:</b> <a href="MetaIndexes_8h_source.html#l00028">MetaIndexes.h:28</a></div></div>
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