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<div class="title">/data/users/hoss/faiss/IndexShards.cpp</div> </div>
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</div><!--header-->
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<div class="contents">
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/**</span></div>
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<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * Copyright (c) Facebook, Inc. and its affiliates.</span></div>
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<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> *</span></div>
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<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * This source code is licensed under the MIT license found in the</span></div>
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<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * LICENSE file in the root directory of this source tree.</span></div>
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<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> */</span></div>
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<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> </div>
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<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment">// -*- c++ -*-</span></div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> </div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="preprocessor">#include "IndexShards.h"</span></div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> </div>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#include <cstdio></span></div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#include <functional></span></div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> </div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#include "FaissAssert.h"</span></div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#include "Heap.h"</span></div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#include "WorkerThread.h"</span></div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> </div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="keyword">namespace </span>faiss {</div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> </div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment">// subroutines</span></div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="keyword">namespace </span>{</div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> </div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="keyword">typedef</span> <a class="code" href="structfaiss_1_1Index.html#ad3f0d3071f987baabbdd3da4500c87ea">Index::idx_t</a> idx_t;</div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> </div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> </div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment">// add translation to all valid labels</span></div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</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="l00029"></a><span class="lineno"> 29</span> {</div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  <span class="keywordflow">if</span> (translation == 0) <span class="keywordflow">return</span>;</div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</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="l00032"></a><span class="lineno"> 32</span>  <span class="keywordflow">if</span>(labels[i] < 0) <span class="keywordflow">continue</span>;</div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  labels[i] += translation;</div>
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<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  }</div>
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<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> }</div>
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<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> </div>
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<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="comment"></span></div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="comment">/** merge result tables from several shards.</span></div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="comment"> * @param all_distances size nshard * n * k</span></div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="comment"> * @param all_labels idem</span></div>
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<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="comment"> * @param translartions label translations to apply, size nshard</span></div>
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<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="comment"> */</span></div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> </div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="keyword">template</span> <<span class="keyword">class</span> IndexClass, <span class="keyword">class</span> C></div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="keywordtype">void</span></div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</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="l00047"></a><span class="lineno"> 47</span>  <span class="keyword">typename</span> IndexClass::distance_t *distances,</div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  idx_t *labels,</div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keyword">const</span> std::vector<typename IndexClass::distance_t>& all_distances,</div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="keyword">const</span> std::vector<idx_t>& all_labels,</div>
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<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keyword">const</span> std::vector<long>& translations) {</div>
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<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="keywordflow">if</span> (k == 0) {</div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="keywordflow">return</span>;</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>  <span class="keyword">using</span> distance_t = <span class="keyword">typename</span> IndexClass::distance_t;</div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> </div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="keywordtype">long</span> stride = n * k;</div>
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<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="preprocessor">#pragma omp parallel</span></div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="preprocessor"></span> {</div>
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<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  std::vector<int> buf (2 * nshard);</div>
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<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="keywordtype">int</span> * pointer = buf.data();</div>
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<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="keywordtype">int</span> * shard_ids = pointer + nshard;</div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  std::vector<distance_t> buf2 (nshard);</div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  distance_t * heap_vals = buf2.data();</div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="preprocessor">#pragma omp for</span></div>
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<div class="line"><a name="l00066"></a><span class="lineno"> 66</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="l00067"></a><span class="lineno"> 67</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="l00068"></a><span class="lineno"> 68</span>  <span class="comment">// produced.</span></div>
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<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keyword">const</span> distance_t *D_in = all_distances.data() + i * k;</div>
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<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="keyword">const</span> idx_t *I_in = all_labels.data() + i * k;</div>
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<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="keywordtype">int</span> heap_size = 0;</div>
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<div class="line"><a name="l00072"></a><span class="lineno"> 72</span> </div>
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<div class="line"><a name="l00073"></a><span class="lineno"> 73</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="l00074"></a><span class="lineno"> 74</span>  pointer[s] = 0;</div>
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<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keywordflow">if</span> (I_in[stride * s] >= 0) {</div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  heap_push<C> (++heap_size, heap_vals, shard_ids,</div>
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<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  D_in[stride * s], s);</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>  }</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>  distance_t *D = distances + i * k;</div>
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<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  idx_t *I = labels + i * k;</div>
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<div class="line"><a name="l00083"></a><span class="lineno"> 83</span> </div>
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<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> j = 0; j < k; j++) {</div>
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<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="keywordflow">if</span> (heap_size == 0) {</div>
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<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  I[j] = -1;</div>
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<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  D[j] = C::neutral();</div>
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<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  } <span class="keywordflow">else</span> {</div>
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<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <span class="comment">// pop best element</span></div>
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<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="keywordtype">int</span> s = shard_ids[0];</div>
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<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <span class="keywordtype">int</span> & p = pointer[s];</div>
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<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  D[j] = heap_vals[0];</div>
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<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  I[j] = I_in[stride * s + p] + translations[s];</div>
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<div class="line"><a name="l00094"></a><span class="lineno"> 94</span> </div>
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<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  heap_pop<C> (heap_size--, heap_vals, shard_ids);</div>
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<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  p++;</div>
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<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="keywordflow">if</span> (p < k && I_in[stride * s + p] >= 0) {</div>
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<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  heap_push<C> (++heap_size, heap_vals, shard_ids,</div>
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<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  D_in[stride * s + p], s);</div>
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<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  }</div>
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<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  }</div>
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<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  }</div>
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<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  }</div>
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<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  }</div>
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<div class="line"><a name="l00105"></a><span class="lineno"> 105</span> }</div>
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<div class="line"><a name="l00106"></a><span class="lineno"> 106</span> </div>
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<div class="line"><a name="l00107"></a><span class="lineno"> 107</span> } <span class="comment">// anonymous namespace</span></div>
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<div class="line"><a name="l00108"></a><span class="lineno"> 108</span> </div>
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<div class="line"><a name="l00109"></a><span class="lineno"> 109</span> <span class="keyword">template</span> <<span class="keyword">typename</span> IndexT></div>
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<div class="line"><a name="l00110"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexShardsTemplate.html#ac278d8f7d54923cb034127a4257c56b7"> 110</a></span> <a class="code" href="structfaiss_1_1IndexShardsTemplate.html#a2ffc0edbce1815fae55cae188b83a5cf">IndexShardsTemplate<IndexT>::IndexShardsTemplate</a>(idx_t d,</div>
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<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keywordtype">bool</span> threaded,</div>
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<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <span class="keywordtype">bool</span> successive_ids)</div>
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<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  : <a class="code" href="classfaiss_1_1ThreadedIndex.html">ThreadedIndex</a><IndexT>(d, threaded),</div>
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<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  successive_ids(successive_ids) {</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> <span class="keyword">template</span> <<span class="keyword">typename</span> IndexT></div>
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<div class="line"><a name="l00118"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexShardsTemplate.html#a0596f5ca67d6c9bfddae1465c5353b29"> 118</a></span> <a class="code" href="structfaiss_1_1IndexShardsTemplate.html#a2ffc0edbce1815fae55cae188b83a5cf">IndexShardsTemplate<IndexT>::IndexShardsTemplate</a>(<span class="keywordtype">int</span> d,</div>
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<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="keywordtype">bool</span> threaded,</div>
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<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="keywordtype">bool</span> successive_ids)</div>
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<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  : <a class="code" href="classfaiss_1_1ThreadedIndex.html">ThreadedIndex</a><IndexT>(d, threaded),</div>
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<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  successive_ids(successive_ids) {</div>
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<div class="line"><a name="l00123"></a><span class="lineno"> 123</span> }</div>
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<div class="line"><a name="l00124"></a><span class="lineno"> 124</span> </div>
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<div class="line"><a name="l00125"></a><span class="lineno"> 125</span> <span class="keyword">template</span> <<span class="keyword">typename</span> IndexT></div>
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<div class="line"><a name="l00126"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexShardsTemplate.html#a2ffc0edbce1815fae55cae188b83a5cf"> 126</a></span> <a class="code" href="structfaiss_1_1IndexShardsTemplate.html#a2ffc0edbce1815fae55cae188b83a5cf">IndexShardsTemplate<IndexT>::IndexShardsTemplate</a>(<span class="keywordtype">bool</span> threaded,</div>
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<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="keywordtype">bool</span> successive_ids)</div>
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<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  : <a class="code" href="classfaiss_1_1ThreadedIndex.html">ThreadedIndex</a><IndexT>(threaded),</div>
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<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  successive_ids(successive_ids) {</div>
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<div class="line"><a name="l00130"></a><span class="lineno"> 130</span> }</div>
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<div class="line"><a name="l00131"></a><span class="lineno"> 131</span> </div>
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<div class="line"><a name="l00132"></a><span class="lineno"> 132</span> <span class="keyword">template</span> <<span class="keyword">typename</span> IndexT></div>
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<div class="line"><a name="l00133"></a><span class="lineno"> 133</span> <span class="keywordtype">void</span></div>
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<div class="line"><a name="l00134"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexShardsTemplate.html#a1d78dd47e9dc49488947e90dbc85e1ac"> 134</a></span> <a class="code" href="structfaiss_1_1IndexShardsTemplate.html#a1d78dd47e9dc49488947e90dbc85e1ac">IndexShardsTemplate<IndexT>::onAfterAddIndex</a>(IndexT* index <span class="comment">/* unused */</span>) {</div>
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<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  sync_with_shard_indexes();</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> <span class="keyword">template</span> <<span class="keyword">typename</span> IndexT></div>
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<div class="line"><a name="l00139"></a><span class="lineno"> 139</span> <span class="keywordtype">void</span></div>
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<div class="line"><a name="l00140"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexShardsTemplate.html#a0488d95e9d45e0cfab203c83e3a8e3c1"> 140</a></span> <a class="code" href="structfaiss_1_1IndexShardsTemplate.html#a0488d95e9d45e0cfab203c83e3a8e3c1">IndexShardsTemplate<IndexT>::onAfterRemoveIndex</a>(IndexT* index <span class="comment">/* unused */</span>) {</div>
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<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  sync_with_shard_indexes();</div>
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<div class="line"><a name="l00142"></a><span class="lineno"> 142</span> }</div>
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<div class="line"><a name="l00143"></a><span class="lineno"> 143</span> </div>
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<div class="line"><a name="l00144"></a><span class="lineno"> 144</span> <span class="keyword">template</span> <<span class="keyword">typename</span> IndexT></div>
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<div class="line"><a name="l00145"></a><span class="lineno"> 145</span> <span class="keywordtype">void</span></div>
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<div class="line"><a name="l00146"></a><span class="lineno"> 146</span> <a class="code" href="structfaiss_1_1IndexShardsTemplate.html">IndexShardsTemplate<IndexT>::sync_with_shard_indexes</a>() {</div>
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<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="keywordflow">if</span> (!this->count()) {</div>
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<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  this->is_trained = <span class="keyword">false</span>;</div>
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<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  this->ntotal = 0;</div>
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<div class="line"><a name="l00150"></a><span class="lineno"> 150</span> </div>
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<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <span class="keywordflow">return</span>;</div>
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<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  }</div>
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<div class="line"><a name="l00153"></a><span class="lineno"> 153</span> </div>
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<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="keyword">auto</span> firstIndex = this->at(0);</div>
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<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  this->metric_type = firstIndex->metric_type;</div>
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<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  this->is_trained = firstIndex->is_trained;</div>
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<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  this->ntotal = firstIndex->ntotal;</div>
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<div class="line"><a name="l00158"></a><span class="lineno"> 158</span> </div>
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<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 1; i < this->count(); ++i) {</div>
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<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  <span class="keyword">auto</span> index = this->at(i);</div>
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<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  FAISS_THROW_IF_NOT(this->metric_type == index-><a class="code" href="structfaiss_1_1Index.html#a8e18f641854b2bde83ecff0a2f9a6f4e">metric_type</a>);</div>
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<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  FAISS_THROW_IF_NOT(this->d == index-><a class="code" href="structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d">d</a>);</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>  this->ntotal += index-><a class="code" href="structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd">ntotal</a>;</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> </div>
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<div class="line"><a name="l00168"></a><span class="lineno"> 168</span> <span class="keyword">template</span> <<span class="keyword">typename</span> IndexT></div>
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<div class="line"><a name="l00169"></a><span class="lineno"> 169</span> <span class="keywordtype">void</span></div>
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<div class="line"><a name="l00170"></a><span class="lineno"> 170</span> IndexShardsTemplate<IndexT>::train(idx_t n,</div>
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<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <span class="keyword">const</span> component_t *x) {</div>
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<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <span class="keyword">auto</span> fn =</div>
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<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  [n, x](<span class="keywordtype">int</span> no, IndexT *index) {</div>
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<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <span class="keywordflow">if</span> (index-><a class="code" href="structfaiss_1_1Index.html#a5590d847c5c2b958affd2a05e58a6f23">verbose</a>) {</div>
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<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  printf(<span class="stringliteral">"begin train shard %d on %ld points\n"</span>, no, n);</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>  index-><a class="code" href="structfaiss_1_1IndexIVF.html#a7a1d5eec194db0977b2318c6ed6a2b86">train</a>(n, x);</div>
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<div class="line"><a name="l00179"></a><span class="lineno"> 179</span> </div>
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<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  <span class="keywordflow">if</span> (index-><a class="code" href="structfaiss_1_1Index.html#a5590d847c5c2b958affd2a05e58a6f23">verbose</a>) {</div>
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<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  printf(<span class="stringliteral">"end train shard %d\n"</span>, no);</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>  };</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>  this->runOnIndex(fn);</div>
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<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  sync_with_shard_indexes();</div>
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<div class="line"><a name="l00187"></a><span class="lineno"> 187</span> }</div>
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<div class="line"><a name="l00188"></a><span class="lineno"> 188</span> </div>
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<div class="line"><a name="l00189"></a><span class="lineno"> 189</span> <span class="keyword">template</span> <<span class="keyword">typename</span> IndexT></div>
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<div class="line"><a name="l00190"></a><span class="lineno"> 190</span> <span class="keywordtype">void</span></div>
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<div class="line"><a name="l00191"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexShardsTemplate.html#a45647579ff21e0945d8a87a97ec705fe"> 191</a></span> <a class="code" href="structfaiss_1_1IndexShardsTemplate.html#a45647579ff21e0945d8a87a97ec705fe">IndexShardsTemplate<IndexT>::add</a>(idx_t n,</div>
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<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  <span class="keyword">const</span> component_t *x) {</div>
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<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  add_with_ids(n, x, <span class="keyword">nullptr</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> </div>
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<div class="line"><a name="l00196"></a><span class="lineno"> 196</span> <span class="keyword">template</span> <<span class="keyword">typename</span> IndexT></div>
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<div class="line"><a name="l00197"></a><span class="lineno"> 197</span> <span class="keywordtype">void</span></div>
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<div class="line"><a name="l00198"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexShardsTemplate.html#a15e0b4a2fd85f9345537d215a331ed91"> 198</a></span> <a class="code" href="structfaiss_1_1IndexShardsTemplate.html#a15e0b4a2fd85f9345537d215a331ed91">IndexShardsTemplate<IndexT>::add_with_ids</a>(idx_t n,</div>
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<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  <span class="keyword">const</span> component_t * x,</div>
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<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  <span class="keyword">const</span> idx_t *xids) {</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>  FAISS_THROW_IF_NOT_MSG(!(successive_ids && xids),</div>
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<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  <span class="stringliteral">"It makes no sense to pass in ids and "</span></div>
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<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  <span class="stringliteral">"request them to be shifted"</span>);</div>
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<div class="line"><a name="l00205"></a><span class="lineno"> 205</span> </div>
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<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  <span class="keywordflow">if</span> (successive_ids) {</div>
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<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  FAISS_THROW_IF_NOT_MSG(!xids,</div>
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<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  <span class="stringliteral">"It makes no sense to pass in ids and "</span></div>
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<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  <span class="stringliteral">"request them to be shifted"</span>);</div>
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<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  FAISS_THROW_IF_NOT_MSG(this->ntotal == 0,</div>
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<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  <span class="stringliteral">"when adding to IndexShards with sucessive_ids, "</span></div>
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<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  <span class="stringliteral">"only add() in a single pass is supported"</span>);</div>
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<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  }</div>
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<div class="line"><a name="l00214"></a><span class="lineno"> 214</span> </div>
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<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  idx_t nshard = this->count();</div>
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<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  <span class="keyword">const</span> idx_t *ids = xids;</div>
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<div class="line"><a name="l00217"></a><span class="lineno"> 217</span> </div>
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<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  std::vector<idx_t> aids;</div>
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<div class="line"><a name="l00219"></a><span class="lineno"> 219</span> </div>
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<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  <span class="keywordflow">if</span> (!ids && !successive_ids) {</div>
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<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  aids.resize(n);</div>
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<div class="line"><a name="l00222"></a><span class="lineno"> 222</span> </div>
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<div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  <span class="keywordflow">for</span> (idx_t i = 0; i < n; i++) {</div>
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<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  aids[i] = this->ntotal + i;</div>
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<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  }</div>
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<div class="line"><a name="l00226"></a><span class="lineno"> 226</span> </div>
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<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  ids = aids.data();</div>
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<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  }</div>
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<div class="line"><a name="l00229"></a><span class="lineno"> 229</span> </div>
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<div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  <span class="keywordtype">size_t</span> components_per_vec =</div>
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<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  <span class="keyword">sizeof</span>(component_t) == 1 ? (this->d + 7) / 8 : this->d;</div>
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<div class="line"><a name="l00232"></a><span class="lineno"> 232</span> </div>
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<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  <span class="keyword">auto</span> fn =</div>
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<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  [n, ids, x, nshard, components_per_vec](<span class="keywordtype">int</span> no, IndexT *index) {</div>
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<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  idx_t i0 = (idx_t) no * n / nshard;</div>
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<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  idx_t i1 = ((idx_t) no + 1) * n / nshard;</div>
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<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  <span class="keyword">auto</span> x0 = x + i0 * components_per_vec;</div>
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<div class="line"><a name="l00238"></a><span class="lineno"> 238</span> </div>
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<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  <span class="keywordflow">if</span> (index-><a class="code" href="structfaiss_1_1Index.html#a5590d847c5c2b958affd2a05e58a6f23">verbose</a>) {</div>
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<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  printf (<span class="stringliteral">"begin add shard %d on %ld points\n"</span>, no, n);</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="keywordflow">if</span> (ids) {</div>
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<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  index-><a class="code" href="structfaiss_1_1IndexIVF.html#a14e75169bddcd0251134821416b060a1">add_with_ids</a> (i1 - i0, x0, ids + i0);</div>
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<div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  } <span class="keywordflow">else</span> {</div>
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<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  index-><a class="code" href="structfaiss_1_1IndexIVF.html#a821002a9d3a1a74dc8d6f6072eca4075">add</a> (i1 - i0, x0);</div>
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<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  }</div>
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<div class="line"><a name="l00248"></a><span class="lineno"> 248</span> </div>
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<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  <span class="keywordflow">if</span> (index-><a class="code" href="structfaiss_1_1Index.html#a5590d847c5c2b958affd2a05e58a6f23">verbose</a>) {</div>
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<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  printf (<span class="stringliteral">"end add shard %d on %ld points\n"</span>, no, i1 - i0);</div>
|
|
<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  }</div>
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<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  };</div>
|
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<div class="line"><a name="l00253"></a><span class="lineno"> 253</span> </div>
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<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  this->runOnIndex(fn);</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>  <span class="comment">// This is safe to do here because the current thread controls execution in</span></div>
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<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  <span class="comment">// all threads, and nothing else is happening</span></div>
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<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  this->ntotal += n;</div>
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<div class="line"><a name="l00259"></a><span class="lineno"> 259</span> }</div>
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<div class="line"><a name="l00260"></a><span class="lineno"> 260</span> </div>
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<div class="line"><a name="l00261"></a><span class="lineno"> 261</span> <span class="keyword">template</span> <<span class="keyword">typename</span> IndexT></div>
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<div class="line"><a name="l00262"></a><span class="lineno"> 262</span> <span class="keywordtype">void</span></div>
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<div class="line"><a name="l00263"></a><span class="lineno"> 263</span> <a class="code" href="structfaiss_1_1IndexShardsTemplate.html">IndexShardsTemplate<IndexT>::search</a>(idx_t n,</div>
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<div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  <span class="keyword">const</span> component_t *x,</div>
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<div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  idx_t k,</div>
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<div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  distance_t *distances,</div>
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<div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  idx_t *labels)<span class="keyword"> const </span>{</div>
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<div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  <span class="keywordtype">long</span> nshard = this->count();</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>  std::vector<distance_t> all_distances(nshard * k * n);</div>
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<div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  std::vector<idx_t> all_labels(nshard * k * n);</div>
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<div class="line"><a name="l00272"></a><span class="lineno"> 272</span> </div>
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<div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  <span class="keyword">auto</span> fn =</div>
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<div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  [n, k, x, &all_distances, &all_labels](<span class="keywordtype">int</span> no, <span class="keyword">const</span> IndexT *index) {</div>
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<div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  <span class="keywordflow">if</span> (index-><a class="code" href="structfaiss_1_1Index.html#a5590d847c5c2b958affd2a05e58a6f23">verbose</a>) {</div>
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<div class="line"><a name="l00276"></a><span class="lineno"> 276</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="l00277"></a><span class="lineno"> 277</span>  }</div>
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<div class="line"><a name="l00278"></a><span class="lineno"> 278</span> </div>
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<div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  index-><a class="code" href="structfaiss_1_1IndexIVF.html#ae2fd47b7d52603659e269aa8f6abb613">search</a> (n, x, k,</div>
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<div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  all_distances.data() + no * k * n,</div>
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<div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  all_labels.data() + no * k * n);</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="keywordflow">if</span> (index-><a class="code" href="structfaiss_1_1Index.html#a5590d847c5c2b958affd2a05e58a6f23">verbose</a>) {</div>
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<div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  printf (<span class="stringliteral">"end query shard %d\n"</span>, no);</div>
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<div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  }</div>
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<div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  };</div>
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<div class="line"><a name="l00287"></a><span class="lineno"> 287</span> </div>
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<div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  this->runOnIndex(fn);</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>  std::vector<long> translations(nshard, 0);</div>
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<div class="line"><a name="l00291"></a><span class="lineno"> 291</span> </div>
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<div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  <span class="comment">// Because we just called runOnIndex above, it is safe to access the sub-index</span></div>
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<div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  <span class="comment">// ntotal here</span></div>
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<div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  <span class="keywordflow">if</span> (successive_ids) {</div>
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<div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  translations[0] = 0;</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">for</span> (<span class="keywordtype">int</span> s = 0; s + 1 < nshard; s++) {</div>
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<div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  translations[s + 1] = translations[s] + this->at(s)->ntotal;</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> </div>
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<div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  <span class="keywordflow">if</span> (this->metric_type == METRIC_L2) {</div>
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<div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  merge_tables<IndexT, CMin<distance_t, int>>(</div>
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<div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  n, k, nshard, distances, labels,</div>
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<div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  all_distances, all_labels, translations);</div>
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<div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  } <span class="keywordflow">else</span> {</div>
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<div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  merge_tables<IndexT, CMax<distance_t, int>>(</div>
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<div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  n, k, nshard, distances, labels,</div>
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<div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  all_distances, all_labels, translations);</div>
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<div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  }</div>
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<div class="line"><a name="l00311"></a><span class="lineno"> 311</span> }</div>
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<div class="line"><a name="l00312"></a><span class="lineno"> 312</span> </div>
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<div class="line"><a name="l00313"></a><span class="lineno"> 313</span> <span class="comment">// explicit instanciations</span></div>
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<div class="line"><a name="l00314"></a><span class="lineno"> 314</span> <span class="keyword">template</span> <span class="keyword">struct </span>IndexShardsTemplate<Index>;</div>
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<div class="line"><a name="l00315"></a><span class="lineno"> 315</span> <span class="keyword">template</span> <span class="keyword">struct </span>IndexShardsTemplate<IndexBinary>;</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="comment">// namespace faiss</span></div>
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<div class="ttc" id="structfaiss_1_1Index_html_a2a002388d2c081c2dbab8508dcefe73d"><div class="ttname"><a href="structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d">faiss::Index::d</a></div><div class="ttdeci">int d</div><div class="ttdoc">vector dimension </div><div class="ttdef"><b>Definition:</b> <a href="Index_8h_source.html#l00066">Index.h:66</a></div></div>
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<div class="ttc" id="structfaiss_1_1Index_html_ad3f0d3071f987baabbdd3da4500c87ea"><div class="ttname"><a href="structfaiss_1_1Index.html#ad3f0d3071f987baabbdd3da4500c87ea">faiss::Index::idx_t</a></div><div class="ttdeci">long idx_t</div><div class="ttdoc">all indices are this type </div><div class="ttdef"><b>Definition:</b> <a href="Index_8h_source.html#l00062">Index.h:62</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexIVF_html_a7a1d5eec194db0977b2318c6ed6a2b86"><div class="ttname"><a href="structfaiss_1_1IndexIVF.html#a7a1d5eec194db0977b2318c6ed6a2b86">faiss::IndexIVF::train</a></div><div class="ttdeci">void train(idx_t n, const float *x) override</div><div class="ttdoc">Trains the quantizer and calls train_residual to train sub-quantizers. </div><div class="ttdef"><b>Definition:</b> <a href="IndexIVF_8cpp_source.html#l00688">IndexIVF.cpp:688</a></div></div>
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<div class="ttc" id="classfaiss_1_1ThreadedIndex_html"><div class="ttname"><a href="classfaiss_1_1ThreadedIndex.html">faiss::ThreadedIndex</a></div><div class="ttdef"><b>Definition:</b> <a href="ThreadedIndex_8h_source.html#l00021">ThreadedIndex.h:21</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexShardsTemplate_html_a15e0b4a2fd85f9345537d215a331ed91"><div class="ttname"><a href="structfaiss_1_1IndexShardsTemplate.html#a15e0b4a2fd85f9345537d215a331ed91">faiss::IndexShardsTemplate::add_with_ids</a></div><div class="ttdeci">void add_with_ids(idx_t n, const component_t *x, const idx_t *xids) override</div><div class="ttdef"><b>Definition:</b> <a href="IndexShards_8cpp_source.html#l00198">IndexShards.cpp:198</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexIVF_html_a14e75169bddcd0251134821416b060a1"><div class="ttname"><a href="structfaiss_1_1IndexIVF.html#a14e75169bddcd0251134821416b060a1">faiss::IndexIVF::add_with_ids</a></div><div class="ttdeci">void add_with_ids(idx_t n, const float *x, const idx_t *xids) override</div><div class="ttdoc">default implementation that calls encode_vectors </div><div class="ttdef"><b>Definition:</b> <a href="IndexIVF_8cpp_source.html#l00149">IndexIVF.cpp:149</a></div></div>
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<div class="ttc" id="structfaiss_1_1Index_html_a6970683faa021b7a6f1a0865c0d4eccd"><div class="ttname"><a href="structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd">faiss::Index::ntotal</a></div><div class="ttdeci">idx_t ntotal</div><div class="ttdoc">total nb of indexed vectors </div><div class="ttdef"><b>Definition:</b> <a href="Index_8h_source.html#l00067">Index.h:67</a></div></div>
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<div class="ttc" id="structfaiss_1_1Index_html_a5590d847c5c2b958affd2a05e58a6f23"><div class="ttname"><a href="structfaiss_1_1Index.html#a5590d847c5c2b958affd2a05e58a6f23">faiss::Index::verbose</a></div><div class="ttdeci">bool verbose</div><div class="ttdoc">verbosity level </div><div class="ttdef"><b>Definition:</b> <a href="Index_8h_source.html#l00068">Index.h:68</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexShardsTemplate_html_a2ffc0edbce1815fae55cae188b83a5cf"><div class="ttname"><a href="structfaiss_1_1IndexShardsTemplate.html#a2ffc0edbce1815fae55cae188b83a5cf">faiss::IndexShardsTemplate::IndexShardsTemplate</a></div><div class="ttdeci">IndexShardsTemplate(bool threaded=false, bool successive_ids=true)</div><div class="ttdef"><b>Definition:</b> <a href="IndexShards_8cpp_source.html#l00126">IndexShards.cpp:126</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexShardsTemplate_html"><div class="ttname"><a href="structfaiss_1_1IndexShardsTemplate.html">faiss::IndexShardsTemplate</a></div><div class="ttdef"><b>Definition:</b> <a href="IndexShards_8h_source.html#l00020">IndexShards.h:20</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexShardsTemplate_html_a45647579ff21e0945d8a87a97ec705fe"><div class="ttname"><a href="structfaiss_1_1IndexShardsTemplate.html#a45647579ff21e0945d8a87a97ec705fe">faiss::IndexShardsTemplate::add</a></div><div class="ttdeci">void add(idx_t n, const component_t *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="IndexShards_8cpp_source.html#l00191">IndexShards.cpp:191</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexShardsTemplate_html_a1d78dd47e9dc49488947e90dbc85e1ac"><div class="ttname"><a href="structfaiss_1_1IndexShardsTemplate.html#a1d78dd47e9dc49488947e90dbc85e1ac">faiss::IndexShardsTemplate::onAfterAddIndex</a></div><div class="ttdeci">void onAfterAddIndex(IndexT *index) override</div><div class="ttdoc">Called just after an index is added. </div><div class="ttdef"><b>Definition:</b> <a href="IndexShards_8cpp_source.html#l00134">IndexShards.cpp:134</a></div></div>
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<div class="ttc" id="structfaiss_1_1Index_html_a8e18f641854b2bde83ecff0a2f9a6f4e"><div class="ttname"><a href="structfaiss_1_1Index.html#a8e18f641854b2bde83ecff0a2f9a6f4e">faiss::Index::metric_type</a></div><div class="ttdeci">MetricType metric_type</div><div class="ttdoc">type of metric this index uses for search </div><div class="ttdef"><b>Definition:</b> <a href="Index_8h_source.html#l00074">Index.h:74</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexIVF_html_a821002a9d3a1a74dc8d6f6072eca4075"><div class="ttname"><a href="structfaiss_1_1IndexIVF.html#a821002a9d3a1a74dc8d6f6072eca4075">faiss::IndexIVF::add</a></div><div class="ttdeci">void add(idx_t n, const float *x) override</div><div class="ttdoc">Calls add_with_ids with NULL ids. </div><div class="ttdef"><b>Definition:</b> <a href="IndexIVF_8cpp_source.html#l00143">IndexIVF.cpp:143</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexIVF_html_ae2fd47b7d52603659e269aa8f6abb613"><div class="ttname"><a href="structfaiss_1_1IndexIVF.html#ae2fd47b7d52603659e269aa8f6abb613">faiss::IndexIVF::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="IndexIVF_8cpp_source.html#l00228">IndexIVF.cpp:228</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexShardsTemplate_html_a0488d95e9d45e0cfab203c83e3a8e3c1"><div class="ttname"><a href="structfaiss_1_1IndexShardsTemplate.html#a0488d95e9d45e0cfab203c83e3a8e3c1">faiss::IndexShardsTemplate::onAfterRemoveIndex</a></div><div class="ttdeci">void onAfterRemoveIndex(IndexT *index) override</div><div class="ttdoc">Called just after an index is removed. </div><div class="ttdef"><b>Definition:</b> <a href="IndexShards_8cpp_source.html#l00140">IndexShards.cpp:140</a></div></div>
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