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<div class="title">/data/users/hoss/faiss/ThreadedIndex-inl.h</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="preprocessor">#include "FaissAssert.h"</span></div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="preprocessor">#include <exception></span></div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="preprocessor">#include <iostream></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="keyword">namespace </span>faiss {</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="keyword">template</span> <<span class="keyword">typename</span> IndexT></div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> ThreadedIndex<IndexT>::ThreadedIndex(<span class="keywordtype">bool</span> threaded)</div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span>  <span class="comment">// 0 is default dimension</span></div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>  : ThreadedIndex(0, threaded) {</div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> }</div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> </div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="keyword">template</span> <<span class="keyword">typename</span> IndexT></div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> ThreadedIndex<IndexT>::ThreadedIndex(<span class="keywordtype">int</span> <a class="code" href="structfaiss_1_1ProductQuantizer.html#a567cd512438f9e3404d9339a232d7695">d</a>, <span class="keywordtype">bool</span> threaded)</div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>  : IndexT(d),</div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>  own_fields(false),</div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  isThreaded_(threaded) {</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="keyword">template</span> <<span class="keyword">typename</span> IndexT></div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> ThreadedIndex<IndexT>::~ThreadedIndex() {</div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  <span class="keywordflow">for</span> (<span class="keyword">auto</span>& p : indices_) {</div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  <span class="keywordflow">if</span> (isThreaded_) {</div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  <span class="comment">// should have worker thread</span></div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  FAISS_ASSERT((<span class="keywordtype">bool</span>) p.second);</div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> </div>
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<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  <span class="comment">// This will also flush all pending work</span></div>
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<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  p.second->stop();</div>
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<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  p.second->waitForThreadExit();</div>
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<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  } <span class="keywordflow">else</span> {</div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <span class="comment">// should not have worker thread</span></div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  FAISS_ASSERT(!(<span class="keywordtype">bool</span>) p.second);</div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  }</div>
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<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> </div>
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<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <span class="keywordflow">if</span> (own_fields) {</div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="keyword">delete</span> p.first;</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"> 47</span> </div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="keyword">template</span> <<span class="keyword">typename</span> IndexT></div>
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<div class="line"><a name="l00049"></a><span class="lineno"><a class="line" href="classfaiss_1_1ThreadedIndex.html#a9a11a672369d48f45cf1dd1bfe0dad87"> 49</a></span> <span class="keywordtype">void</span> <a class="code" href="classfaiss_1_1ThreadedIndex.html#a9a11a672369d48f45cf1dd1bfe0dad87">ThreadedIndex<IndexT>::addIndex</a>(IndexT* index) {</div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="comment">// We inherit the dimension from the first index added to us if we don't have</span></div>
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<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="comment">// a set dimension</span></div>
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<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="keywordflow">if</span> (indices_.empty() && this-><a class="code" href="structfaiss_1_1ProductQuantizer.html#a567cd512438f9e3404d9339a232d7695">d</a> == 0) {</div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  this-><a class="code" href="structfaiss_1_1ProductQuantizer.html#a567cd512438f9e3404d9339a232d7695">d</a> = index->d;</div>
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<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  }</div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> </div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="comment">// The new index must match our set dimension</span></div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  FAISS_THROW_IF_NOT_FMT(this-><a class="code" href="structfaiss_1_1ProductQuantizer.html#a567cd512438f9e3404d9339a232d7695">d</a> == index->d,</div>
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<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="stringliteral">"addIndex: dimension mismatch for "</span></div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <span class="stringliteral">"newly added index; expecting dim %d, "</span></div>
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<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="stringliteral">"new index has dim %d"</span>,</div>
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<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  this->d, index->d);</div>
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<div class="line"><a name="l00062"></a><span class="lineno"> 62</span> </div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="keywordflow">if</span> (!indices_.empty()) {</div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <span class="keyword">auto</span>& existing = indices_.front().first;</div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span> </div>
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<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  FAISS_THROW_IF_NOT_MSG(index->metric_type == existing->metric_type,</div>
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<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="stringliteral">"addIndex: newly added index is "</span></div>
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<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="stringliteral">"of different metric type than old index"</span>);</div>
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<div class="line"><a name="l00069"></a><span class="lineno"> 69</span> </div>
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<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="comment">// Make sure this index is not duplicated</span></div>
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<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="keywordflow">for</span> (<span class="keyword">auto</span>& p : indices_) {</div>
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<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  FAISS_THROW_IF_NOT_MSG(p.first != index,</div>
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<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="stringliteral">"addIndex: attempting to add index "</span></div>
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<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="stringliteral">"that is already in the collection"</span>);</div>
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<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  }</div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  }</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>  indices_.emplace_back(</div>
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<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  std::make_pair(</div>
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<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  index,</div>
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<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  std::unique_ptr<WorkerThread>(isThreaded_ ?</div>
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<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <span class="keyword">new</span> <a class="code" href="classfaiss_1_1WorkerThread.html">WorkerThread</a> : <span class="keyword">nullptr</span>)));</div>
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<div class="line"><a name="l00083"></a><span class="lineno"> 83</span> </div>
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<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  onAfterAddIndex(index);</div>
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<div class="line"><a name="l00085"></a><span class="lineno"> 85</span> }</div>
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<div class="line"><a name="l00086"></a><span class="lineno"> 86</span> </div>
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<div class="line"><a name="l00087"></a><span class="lineno"> 87</span> <span class="keyword">template</span> <<span class="keyword">typename</span> IndexT></div>
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<div class="line"><a name="l00088"></a><span class="lineno"><a class="line" href="classfaiss_1_1ThreadedIndex.html#a21604d6b8b8d42e6cc78c26e85564027"> 88</a></span> <span class="keywordtype">void</span> <a class="code" href="classfaiss_1_1ThreadedIndex.html#a21604d6b8b8d42e6cc78c26e85564027">ThreadedIndex<IndexT>::removeIndex</a>(IndexT* index) {</div>
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<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <span class="keywordflow">for</span> (<span class="keyword">auto</span> it = indices_.begin(); it != indices_.end(); ++it) {</div>
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<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="keywordflow">if</span> (it->first == index) {</div>
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<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <span class="comment">// This is our index; stop the worker thread before removing it,</span></div>
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<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <span class="comment">// to ensure that it has finished before function exit</span></div>
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<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <span class="keywordflow">if</span> (isThreaded_) {</div>
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<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="comment">// should have worker thread</span></div>
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<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  FAISS_ASSERT((<span class="keywordtype">bool</span>) it->second);</div>
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<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  it->second->stop();</div>
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<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  it->second->waitForThreadExit();</div>
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<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  } <span class="keywordflow">else</span> {</div>
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<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <span class="comment">// should not have worker thread</span></div>
|
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<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  FAISS_ASSERT(!(<span class="keywordtype">bool</span>) it->second);</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>  indices_.erase(it);</div>
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<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  onAfterRemoveIndex(index);</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>  <span class="keywordflow">if</span> (own_fields) {</div>
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<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="keyword">delete</span> index;</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>  <span class="keywordflow">return</span>;</div>
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<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  }</div>
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<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  }</div>
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<div class="line"><a name="l00113"></a><span class="lineno"> 113</span> </div>
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<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <span class="comment">// could not find our index</span></div>
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<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  FAISS_THROW_MSG(<span class="stringliteral">"IndexReplicas::removeIndex: index not found"</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> <span class="keyword">template</span> <<span class="keyword">typename</span> IndexT></div>
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<div class="line"><a name="l00119"></a><span class="lineno"><a class="line" href="classfaiss_1_1ThreadedIndex.html#a30ade89dc4e571868cf121e5592d6687"> 119</a></span> <span class="keywordtype">void</span> <a class="code" href="classfaiss_1_1ThreadedIndex.html#a30ade89dc4e571868cf121e5592d6687">ThreadedIndex<IndexT>::runOnIndex</a>(std::function<<span class="keywordtype">void</span>(<span class="keywordtype">int</span>, IndexT*)> f) {</div>
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<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="keywordflow">if</span> (isThreaded_) {</div>
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<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  std::vector<std::future<bool>> v;</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="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < this->indices_.size(); ++i) {</div>
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<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="keyword">auto</span>& p = this->indices_[i];</div>
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<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <span class="keyword">auto</span> indexPtr = p.first;</div>
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<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  v.emplace_back(p.second->add([f, i, indexPtr](){ f(i, indexPtr); }));</div>
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<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  }</div>
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<div class="line"><a name="l00128"></a><span class="lineno"> 128</span> </div>
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<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  waitAndHandleFutures(v);</div>
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<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  } <span class="keywordflow">else</span> {</div>
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<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <span class="comment">// Multiple exceptions may be thrown; gather them as we encounter them,</span></div>
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<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="comment">// while letting everything else run to completion</span></div>
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<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  std::vector<std::pair<int, std::exception_ptr>> exceptions;</div>
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<div class="line"><a name="l00134"></a><span class="lineno"> 134</span> </div>
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<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < this->indices_.size(); ++i) {</div>
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<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <span class="keyword">auto</span>& p = this->indices_[i];</div>
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<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <span class="keywordflow">try</span> {</div>
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<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  f(i, p.first);</div>
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<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  } <span class="keywordflow">catch</span> (...) {</div>
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<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  exceptions.emplace_back(std::make_pair(i, std::current_exception()));</div>
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<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  }</div>
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<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  }</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>  <a class="code" href="namespacefaiss.html#a542cf4d499962a3d7a0db924424d8870">handleExceptions</a>(exceptions);</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"> 148</span> <span class="keyword">template</span> <<span class="keyword">typename</span> IndexT></div>
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<div class="line"><a name="l00149"></a><span class="lineno"> 149</span> <span class="keywordtype">void</span> <a class="code" href="classfaiss_1_1ThreadedIndex.html#a30ade89dc4e571868cf121e5592d6687">ThreadedIndex<IndexT>::runOnIndex</a>(</div>
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<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  std::function<<span class="keywordtype">void</span>(<span class="keywordtype">int</span>, <span class="keyword">const</span> IndexT*)> f)<span class="keyword"> const </span>{</div>
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<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <span class="keyword">const_cast<</span>ThreadedIndex<IndexT>*<span class="keyword">></span>(<span class="keyword">this</span>)->runOnIndex(</div>
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<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  [f](<span class="keywordtype">int</span> i, IndexT* idx){ f(i, idx); });</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> </div>
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<div class="line"><a name="l00155"></a><span class="lineno"> 155</span> <span class="keyword">template</span> <<span class="keyword">typename</span> IndexT></div>
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<div class="line"><a name="l00156"></a><span class="lineno"><a class="line" href="classfaiss_1_1ThreadedIndex.html#a4536f6e7a8cce1f79bebc420ae1e909b"> 156</a></span> <span class="keywordtype">void</span> <a class="code" href="classfaiss_1_1ThreadedIndex.html#a4536f6e7a8cce1f79bebc420ae1e909b">ThreadedIndex<IndexT>::reset</a>() {</div>
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<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  runOnIndex([](<span class="keywordtype">int</span>, IndexT* index){ index->reset(); });</div>
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<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  this->ntotal = 0;</div>
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<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  this->is_trained = <span class="keyword">false</span>;</div>
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<div class="line"><a name="l00160"></a><span class="lineno"> 160</span> }</div>
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<div class="line"><a name="l00161"></a><span class="lineno"> 161</span> </div>
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<div class="line"><a name="l00162"></a><span class="lineno"> 162</span> <span class="keyword">template</span> <<span class="keyword">typename</span> IndexT></div>
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<div class="line"><a name="l00163"></a><span class="lineno"> 163</span> <span class="keywordtype">void</span></div>
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<div class="line"><a name="l00164"></a><span class="lineno"><a class="line" href="classfaiss_1_1ThreadedIndex.html#abdcae15f8589c53d4fa648fb2d5ab625"> 164</a></span> <a class="code" href="classfaiss_1_1ThreadedIndex.html#abdcae15f8589c53d4fa648fb2d5ab625">ThreadedIndex<IndexT>::onAfterAddIndex</a>(IndexT* index) {</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="keyword">template</span> <<span class="keyword">typename</span> IndexT></div>
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<div class="line"><a name="l00168"></a><span class="lineno"> 168</span> <span class="keywordtype">void</span></div>
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<div class="line"><a name="l00169"></a><span class="lineno"><a class="line" href="classfaiss_1_1ThreadedIndex.html#a3bfc1a3002a150d850b20dc40c5d31fe"> 169</a></span> <a class="code" href="classfaiss_1_1ThreadedIndex.html#a3bfc1a3002a150d850b20dc40c5d31fe">ThreadedIndex<IndexT>::onAfterRemoveIndex</a>(IndexT* index) {</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> </div>
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<div class="line"><a name="l00172"></a><span class="lineno"> 172</span> <span class="keyword">template</span> <<span class="keyword">typename</span> IndexT></div>
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<div class="line"><a name="l00173"></a><span class="lineno"> 173</span> <span class="keywordtype">void</span></div>
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<div class="line"><a name="l00174"></a><span class="lineno"> 174</span> <a class="code" href="classfaiss_1_1ThreadedIndex.html">ThreadedIndex<IndexT>::waitAndHandleFutures</a>(std::vector<std::future<bool>>& v) {</div>
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<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  <span class="comment">// Blocking wait for completion for all of the indices, capturing any</span></div>
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<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <span class="comment">// exceptions that are generated</span></div>
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<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  std::vector<std::pair<int, std::exception_ptr>> exceptions;</div>
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<div class="line"><a name="l00178"></a><span class="lineno"> 178</span> </div>
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<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < v.size(); ++i) {</div>
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<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  <span class="keyword">auto</span>& fut = v[i];</div>
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<div class="line"><a name="l00181"></a><span class="lineno"> 181</span> </div>
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<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <span class="keywordflow">try</span> {</div>
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<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  fut.get();</div>
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<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  } <span class="keywordflow">catch</span> (...) {</div>
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<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  exceptions.emplace_back(std::make_pair(i, std::current_exception()));</div>
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<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  }</div>
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<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  }</div>
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<div class="line"><a name="l00188"></a><span class="lineno"> 188</span> </div>
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<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  <a class="code" href="namespacefaiss.html#a542cf4d499962a3d7a0db924424d8870">handleExceptions</a>(exceptions);</div>
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<div class="line"><a name="l00190"></a><span class="lineno"> 190</span> }</div>
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<div class="line"><a name="l00191"></a><span class="lineno"> 191</span> </div>
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<div class="line"><a name="l00192"></a><span class="lineno"> 192</span> } <span class="comment">// namespace</span></div>
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<div class="ttc" id="classfaiss_1_1ThreadedIndex_html_a21604d6b8b8d42e6cc78c26e85564027"><div class="ttname"><a href="classfaiss_1_1ThreadedIndex.html#a21604d6b8b8d42e6cc78c26e85564027">faiss::ThreadedIndex::removeIndex</a></div><div class="ttdeci">void removeIndex(IndexT *index)</div><div class="ttdef"><b>Definition:</b> <a href="ThreadedIndex-inl_8h_source.html#l00088">ThreadedIndex-inl.h:88</a></div></div>
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<div class="ttc" id="namespacefaiss_html_a542cf4d499962a3d7a0db924424d8870"><div class="ttname"><a href="namespacefaiss.html#a542cf4d499962a3d7a0db924424d8870">faiss::handleExceptions</a></div><div class="ttdeci">void handleExceptions(std::vector< std::pair< int, std::exception_ptr >> &exceptions)</div><div class="ttdef"><b>Definition:</b> <a href="FaissException_8cpp_source.html#l00035">FaissException.cpp:35</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="classfaiss_1_1ThreadedIndex_html_a9a11a672369d48f45cf1dd1bfe0dad87"><div class="ttname"><a href="classfaiss_1_1ThreadedIndex.html#a9a11a672369d48f45cf1dd1bfe0dad87">faiss::ThreadedIndex::addIndex</a></div><div class="ttdeci">void addIndex(IndexT *index)</div><div class="ttdef"><b>Definition:</b> <a href="ThreadedIndex-inl_8h_source.html#l00049">ThreadedIndex-inl.h:49</a></div></div>
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<div class="ttc" id="classfaiss_1_1ThreadedIndex_html_a30ade89dc4e571868cf121e5592d6687"><div class="ttname"><a href="classfaiss_1_1ThreadedIndex.html#a30ade89dc4e571868cf121e5592d6687">faiss::ThreadedIndex::runOnIndex</a></div><div class="ttdeci">void runOnIndex(std::function< void(int, IndexT *)> f)</div><div class="ttdef"><b>Definition:</b> <a href="ThreadedIndex-inl_8h_source.html#l00119">ThreadedIndex-inl.h:119</a></div></div>
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<div class="ttc" id="classfaiss_1_1ThreadedIndex_html_a3bfc1a3002a150d850b20dc40c5d31fe"><div class="ttname"><a href="classfaiss_1_1ThreadedIndex.html#a3bfc1a3002a150d850b20dc40c5d31fe">faiss::ThreadedIndex::onAfterRemoveIndex</a></div><div class="ttdeci">virtual void onAfterRemoveIndex(IndexT *index)</div><div class="ttdoc">Called just after an index is removed. </div><div class="ttdef"><b>Definition:</b> <a href="ThreadedIndex-inl_8h_source.html#l00169">ThreadedIndex-inl.h:169</a></div></div>
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<div class="ttc" id="classfaiss_1_1WorkerThread_html"><div class="ttname"><a href="classfaiss_1_1WorkerThread.html">faiss::WorkerThread</a></div><div class="ttdef"><b>Definition:</b> <a href="WorkerThread_8h_source.html#l00018">WorkerThread.h:18</a></div></div>
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<div class="ttc" id="classfaiss_1_1ThreadedIndex_html_abdcae15f8589c53d4fa648fb2d5ab625"><div class="ttname"><a href="classfaiss_1_1ThreadedIndex.html#abdcae15f8589c53d4fa648fb2d5ab625">faiss::ThreadedIndex::onAfterAddIndex</a></div><div class="ttdeci">virtual void onAfterAddIndex(IndexT *index)</div><div class="ttdoc">Called just after an index is added. </div><div class="ttdef"><b>Definition:</b> <a href="ThreadedIndex-inl_8h_source.html#l00164">ThreadedIndex-inl.h:164</a></div></div>
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<div class="ttc" id="structfaiss_1_1ProductQuantizer_html_a567cd512438f9e3404d9339a232d7695"><div class="ttname"><a href="structfaiss_1_1ProductQuantizer.html#a567cd512438f9e3404d9339a232d7695">faiss::ProductQuantizer::d</a></div><div class="ttdeci">size_t d</div><div class="ttdoc">size of the input vectors </div><div class="ttdef"><b>Definition:</b> <a href="ProductQuantizer_8h_source.html#l00027">ProductQuantizer.h:27</a></div></div>
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<div class="ttc" id="classfaiss_1_1ThreadedIndex_html_a4536f6e7a8cce1f79bebc420ae1e909b"><div class="ttname"><a href="classfaiss_1_1ThreadedIndex.html#a4536f6e7a8cce1f79bebc420ae1e909b">faiss::ThreadedIndex::reset</a></div><div class="ttdeci">void reset() override</div><div class="ttdef"><b>Definition:</b> <a href="ThreadedIndex-inl_8h_source.html#l00156">ThreadedIndex-inl.h:156</a></div></div>
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