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<div class="title">/data/users/hoss/faiss/IndexIVFFlat.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 "IndexIVFFlat.h"</span></div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> </div>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#include <cstdio></span></div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> </div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#include "utils.h"</span></div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> </div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#include "FaissAssert.h"</span></div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#include "IndexFlat.h"</span></div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor">#include "AuxIndexStructures.h"</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> </div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="keyword">namespace </span>faiss {</div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> </div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> </div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment">/*****************************************</span></div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="comment"> * IndexIVFFlat implementation</span></div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment"> ******************************************/</span></div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> </div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> IndexIVFFlat::IndexIVFFlat (Index * quantizer,</div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  <span class="keywordtype">size_t</span> d, <span class="keywordtype">size_t</span> nlist, <a class="code" href="namespacefaiss.html#afd12191c638da74760ff397cf319752c">MetricType</a> metric):</div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  IndexIVF (quantizer, d, nlist, sizeof(float) * d, metric)</div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> {</div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  code_size = <span class="keyword">sizeof</span>(float) * d;</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> </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"><a class="line" href="structfaiss_1_1IndexIVFFlat.html#a5f7356766632d3ce2838f285aa6b8e76"> 36</a></span> <span class="keywordtype">void</span> <a class="code" href="structfaiss_1_1IndexIVFFlat.html#a5f7356766632d3ce2838f285aa6b8e76">IndexIVFFlat::add_with_ids</a> (<a class="code" href="structfaiss_1_1Index.html#ad3f0d3071f987baabbdd3da4500c87ea">idx_t</a> n, <span class="keyword">const</span> <span class="keywordtype">float</span> * x, <span class="keyword">const</span> <span class="keywordtype">long</span> *xids)</div>
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<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> {</div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <a class="code" href="structfaiss_1_1IndexIVFFlat.html#aea729c3d8c70bdd93f8e413e834851a4">add_core</a> (n, x, xids, <span class="keyword">nullptr</span>);</div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> }</div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> </div>
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<div class="line"><a name="l00041"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexIVFFlat.html#aea729c3d8c70bdd93f8e413e834851a4"> 41</a></span> <span class="keywordtype">void</span> <a class="code" href="structfaiss_1_1IndexIVFFlat.html#aea729c3d8c70bdd93f8e413e834851a4">IndexIVFFlat::add_core</a> (<a class="code" href="structfaiss_1_1Index.html#ad3f0d3071f987baabbdd3da4500c87ea">idx_t</a> n, <span class="keyword">const</span> <span class="keywordtype">float</span> * x, <span class="keyword">const</span> <span class="keywordtype">long</span> *xids,</div>
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<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <span class="keyword">const</span> <span class="keywordtype">long</span> *precomputed_idx)</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> {</div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  FAISS_THROW_IF_NOT (<a class="code" href="structfaiss_1_1Index.html#a6e92732617c4dbe364e7678dd8773a7f">is_trained</a>);</div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  assert (<a class="code" href="structfaiss_1_1IndexIVF.html#aa0e8fc5e04cbd8e0dde61f98bc7dd0bc">invlists</a>);</div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  FAISS_THROW_IF_NOT_MSG (!(<a class="code" href="structfaiss_1_1IndexIVF.html#aedd0c14b5654295b291638ec7f9f9517">maintain_direct_map</a> && xids),</div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="stringliteral">"cannot have direct map and add with ids"</span>);</div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keyword">const</span> <span class="keywordtype">long</span> * idx;</div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <a class="code" href="structfaiss_1_1ScopeDeleter.html">ScopeDeleter<long></a> del;</div>
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<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> </div>
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<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="keywordflow">if</span> (precomputed_idx) {</div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  idx = precomputed_idx;</div>
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<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  } <span class="keywordflow">else</span> {</div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="keywordtype">long</span> * idx0 = <span class="keyword">new</span> <span class="keywordtype">long</span> [n];</div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  del.set (idx0);</div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <a class="code" href="structfaiss_1_1Level1Quantizer.html#a3cf99e2ee92b8558a066f821efab95d5">quantizer</a>-><a class="code" href="structfaiss_1_1Index.html#a8bc5d8d1cd0dd7b34b3c98a9f76b4a9c">assign</a> (n, x, idx0);</div>
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<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  idx = idx0;</div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  }</div>
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<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="keywordtype">long</span> n_add = 0;</div>
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<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i < n; i++) {</div>
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<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="keywordtype">long</span> <span class="keywordtype">id</span> = xids ? xids[i] : <a class="code" href="structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd">ntotal</a> + i;</div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="keywordtype">long</span> list_no = idx [i];</div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span> </div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="keywordflow">if</span> (list_no < 0)</div>
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<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="keywordflow">continue</span>;</div>
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<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keyword">const</span> <span class="keywordtype">float</span> *xi = x + i * <a class="code" href="structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d">d</a>;</div>
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<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="keywordtype">size_t</span> offset = <a class="code" href="structfaiss_1_1IndexIVF.html#aa0e8fc5e04cbd8e0dde61f98bc7dd0bc">invlists</a>-><a class="code" href="structfaiss_1_1InvertedLists.html#acd3e36cc06fc49e02773e403a84dba95">add_entry</a> (</div>
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<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  list_no, <span class="keywordtype">id</span>, (<span class="keyword">const</span> uint8_t*) xi);</div>
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<div class="line"><a name="l00070"></a><span class="lineno"> 70</span> </div>
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<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="keywordflow">if</span> (<a class="code" href="structfaiss_1_1IndexIVF.html#aedd0c14b5654295b291638ec7f9f9517">maintain_direct_map</a>)</div>
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<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  direct_map.push_back (list_no << 32 | offset);</div>
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<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  n_add++;</div>
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<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  }</div>
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<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keywordflow">if</span> (<a class="code" href="structfaiss_1_1Index.html#a5590d847c5c2b958affd2a05e58a6f23">verbose</a>) {</div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  printf(<span class="stringliteral">"IndexIVFFlat::add_core: added %ld / %ld vectors\n"</span>,</div>
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<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  n_add, n);</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>  <a class="code" href="structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd">ntotal</a> += n;</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> </div>
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<div class="line"><a name="l00082"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexIVFFlat.html#a2c445db1ccbad852dad17e60e0fac950"> 82</a></span> <span class="keywordtype">void</span> <a class="code" href="structfaiss_1_1IndexIVFFlat.html#a2c445db1ccbad852dad17e60e0fac950">IndexIVFFlat::encode_vectors</a>(<a class="code" href="structfaiss_1_1Index.html#ad3f0d3071f987baabbdd3da4500c87ea">idx_t</a> n, <span class="keyword">const</span> <span class="keywordtype">float</span>* x,</div>
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<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <span class="keyword">const</span> <a class="code" href="structfaiss_1_1Index.html#ad3f0d3071f987baabbdd3da4500c87ea">idx_t</a> * <span class="comment">/* list_nos */</span>,</div>
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<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  uint8_t * codes)<span class="keyword"> const</span></div>
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<div class="line"><a name="l00085"></a><span class="lineno"> 85</span> <span class="keyword"></span>{</div>
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<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  memcpy (codes, x, <a class="code" href="structfaiss_1_1IndexIVF.html#a46d1aeddb60643c5b3f096147c3e028f">code_size</a> * n);</div>
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<div class="line"><a name="l00087"></a><span class="lineno"> 87</span> }</div>
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<div class="line"><a name="l00088"></a><span class="lineno"> 88</span> </div>
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<div class="line"><a name="l00089"></a><span class="lineno"> 89</span> </div>
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<div class="line"><a name="l00090"></a><span class="lineno"> 90</span> </div>
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<div class="line"><a name="l00091"></a><span class="lineno"> 91</span> <span class="keyword">namespace </span>{</div>
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<div class="line"><a name="l00092"></a><span class="lineno"> 92</span> </div>
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<div class="line"><a name="l00093"></a><span class="lineno"> 93</span> </div>
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<div class="line"><a name="l00094"></a><span class="lineno"> 94</span> <span class="keyword">template</span><MetricType metric, <span class="keywordtype">bool</span> store_pairs, <span class="keyword">class</span> C></div>
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<div class="line"><a name="l00095"></a><span class="lineno"> 95</span> <span class="keyword">struct </span>IVFFlatScanner: <a class="code" href="structfaiss_1_1InvertedListScanner.html">InvertedListScanner</a> {</div>
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<div class="line"><a name="l00096"></a><span class="lineno"> 96</span> </div>
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<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="keywordtype">size_t</span> d;</div>
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<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  IVFFlatScanner(<span class="keywordtype">size_t</span> d): d(d) {}</div>
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<div class="line"><a name="l00099"></a><span class="lineno"> 99</span> </div>
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<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <span class="keyword">const</span> <span class="keywordtype">float</span> *xi;</div>
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<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <span class="keywordtype">void</span> set_query (<span class="keyword">const</span> <span class="keywordtype">float</span> *query)<span class="keyword"> override </span>{</div>
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<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  this->xi = query;</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>  idx_t list_no;</div>
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<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="keywordtype">void</span> set_list (idx_t list_no, <span class="keywordtype">float</span> <span class="comment">/* coarse_dis */</span>)<span class="keyword"> override </span>{</div>
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<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  this->list_no = list_no;</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="keywordtype">float</span> distance_to_code (<span class="keyword">const</span> uint8_t *code)<span class="keyword"> const override </span>{</div>
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<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keyword">const</span> <span class="keywordtype">float</span> *yj = (<span class="keywordtype">float</span>*)code;</div>
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<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <span class="keywordtype">float</span> dis = metric == METRIC_INNER_PRODUCT ?</div>
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<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  fvec_inner_product (xi, yj, d) : <a class="code" href="namespacefaiss.html#a7466bd32de31640860393a701eaac5ad">fvec_L2sqr</a> (xi, yj, d);</div>
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<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <span class="keywordflow">return</span> dis;</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="keywordtype">size_t</span> scan_codes (<span class="keywordtype">size_t</span> list_size,</div>
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<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <span class="keyword">const</span> uint8_t *codes,</div>
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<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="keyword">const</span> idx_t *ids,</div>
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<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="keywordtype">float</span> *simi, idx_t *idxi,</div>
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<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="keywordtype">size_t</span> k)<span class="keyword"> const override</span></div>
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<div class="line"><a name="l00122"></a><span class="lineno"> 122</span> <span class="keyword"> </span>{</div>
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<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <span class="keyword">const</span> <span class="keywordtype">float</span> *list_vecs = (<span class="keyword">const</span> <span class="keywordtype">float</span>*)codes;</div>
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<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="keywordtype">size_t</span> nup = 0;</div>
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<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> j = 0; j < list_size; j++) {</div>
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<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <span class="keyword">const</span> <span class="keywordtype">float</span> * yj = list_vecs + d * j;</div>
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<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="keywordtype">float</span> dis = metric == METRIC_INNER_PRODUCT ?</div>
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<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  fvec_inner_product (xi, yj, d) : <a class="code" href="namespacefaiss.html#a7466bd32de31640860393a701eaac5ad">fvec_L2sqr</a> (xi, yj, d);</div>
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<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="keywordflow">if</span> (C::cmp (simi[0], dis)) {</div>
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<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  heap_pop<C> (k, simi, idxi);</div>
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<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <span class="keywordtype">long</span> <span class="keywordtype">id</span> = store_pairs ? (list_no << 32 | j) : ids[j];</div>
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<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  heap_push<C> (k, simi, idxi, dis, id);</div>
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<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  nup++;</div>
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<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  }</div>
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<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  }</div>
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<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <span class="keywordflow">return</span> nup;</div>
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<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  }</div>
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<div class="line"><a name="l00138"></a><span class="lineno"> 138</span> </div>
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<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="keywordtype">void</span> scan_codes_range (<span class="keywordtype">size_t</span> list_size,</div>
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<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <span class="keyword">const</span> uint8_t *codes,</div>
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<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <span class="keyword">const</span> idx_t *ids,</div>
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<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  <span class="keywordtype">float</span> radius,</div>
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<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  RangeQueryResult & res)<span class="keyword"> const override</span></div>
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<div class="line"><a name="l00144"></a><span class="lineno"> 144</span> <span class="keyword"> </span>{</div>
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<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <span class="keyword">const</span> <span class="keywordtype">float</span> *list_vecs = (<span class="keyword">const</span> <span class="keywordtype">float</span>*)codes;</div>
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<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> j = 0; j < list_size; j++) {</div>
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<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="keyword">const</span> <span class="keywordtype">float</span> * yj = list_vecs + d * j;</div>
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<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <span class="keywordtype">float</span> dis = metric == METRIC_INNER_PRODUCT ?</div>
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<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  fvec_inner_product (xi, yj, d) : <a class="code" href="namespacefaiss.html#a7466bd32de31640860393a701eaac5ad">fvec_L2sqr</a> (xi, yj, d);</div>
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<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="keywordflow">if</span> (C::cmp (radius, dis)) {</div>
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<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <span class="keywordtype">long</span> <span class="keywordtype">id</span> = store_pairs ? (list_no << 32 | j) : ids[j];</div>
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<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  res.add (dis, <span class="keywordtype">id</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>  }</div>
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<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  }</div>
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<div class="line"><a name="l00156"></a><span class="lineno"> 156</span> </div>
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<div class="line"><a name="l00157"></a><span class="lineno"> 157</span> </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> </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> } <span class="comment">// anonymous namespace</span></div>
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<div class="line"><a name="l00162"></a><span class="lineno"> 162</span> </div>
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<div class="line"><a name="l00163"></a><span class="lineno"> 163</span> </div>
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<div class="line"><a name="l00164"></a><span class="lineno"> 164</span> </div>
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<div class="line"><a name="l00165"></a><span class="lineno"> 165</span> InvertedListScanner* <a class="code" href="structfaiss_1_1IndexIVFFlat.html#a05cbcc239916559b29b1eb1943b00440">IndexIVFFlat::get_InvertedListScanner</a></div>
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<div class="line"><a name="l00166"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexIVFFlat.html#a05cbcc239916559b29b1eb1943b00440"> 166</a></span>  (<span class="keywordtype">bool</span> store_pairs) <span class="keyword">const</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="keywordflow">if</span> (metric_type == METRIC_INNER_PRODUCT) {</div>
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<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  <span class="keywordflow">if</span> (store_pairs) {</div>
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<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  <span class="keywordflow">return</span> <span class="keyword">new</span> IVFFlatScanner<</div>
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<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  METRIC_INNER_PRODUCT, <span class="keyword">true</span>, <a class="code" href="structfaiss_1_1CMin.html">CMin<float, long></a> > (d);</div>
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<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  } <span class="keywordflow">else</span> {</div>
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<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  <span class="keywordflow">return</span> <span class="keyword">new</span> IVFFlatScanner<</div>
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<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  METRIC_INNER_PRODUCT, <span class="keyword">false</span>, <a class="code" href="structfaiss_1_1CMin.html">CMin<float, long></a> >(d);</div>
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<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  }</div>
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<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (metric_type == METRIC_L2) {</div>
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<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  <span class="keywordflow">if</span> (store_pairs) {</div>
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<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  <span class="keywordflow">return</span> <span class="keyword">new</span> IVFFlatScanner<</div>
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<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  METRIC_L2, <span class="keyword">true</span>, <a class="code" href="structfaiss_1_1CMax.html">CMax<float, long></a> > (d);</div>
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<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  } <span class="keywordflow">else</span> {</div>
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<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  <span class="keywordflow">return</span> <span class="keyword">new</span> IVFFlatScanner<</div>
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<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  METRIC_L2, <span class="keyword">false</span>, <a class="code" href="structfaiss_1_1CMax.html">CMax<float, long></a> >(d);</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>  <span class="keywordflow">return</span> <span class="keyword">nullptr</span>;</div>
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<div class="line"><a name="l00186"></a><span class="lineno"> 186</span> }</div>
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<div class="line"><a name="l00187"></a><span class="lineno"> 187</span> </div>
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<div class="line"><a name="l00188"></a><span class="lineno"> 188</span> </div>
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<div class="line"><a name="l00189"></a><span class="lineno"> 189</span> </div>
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<div class="line"><a name="l00190"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexIVFFlat.html#a2adc0b0002c32ddc01aec4ab96dd659f"> 190</a></span> <span class="keywordtype">void</span> <a class="code" href="structfaiss_1_1IndexIVFFlat.html#a2adc0b0002c32ddc01aec4ab96dd659f">IndexIVFFlat::update_vectors</a> (<span class="keywordtype">int</span> n, <a class="code" href="structfaiss_1_1Index.html#ad3f0d3071f987baabbdd3da4500c87ea">idx_t</a> *new_ids, <span class="keyword">const</span> <span class="keywordtype">float</span> *x)</div>
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<div class="line"><a name="l00191"></a><span class="lineno"> 191</span> {</div>
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<div class="line"><a name="l00192"></a><span class="lineno"> 192</span> </div>
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<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  FAISS_THROW_IF_NOT (<a class="code" href="structfaiss_1_1IndexIVF.html#aedd0c14b5654295b291638ec7f9f9517">maintain_direct_map</a>);</div>
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<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  FAISS_THROW_IF_NOT (<a class="code" href="structfaiss_1_1Index.html#a6e92732617c4dbe364e7678dd8773a7f">is_trained</a>);</div>
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<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  std::vector<idx_t> <a class="code" href="structfaiss_1_1Index.html#a8bc5d8d1cd0dd7b34b3c98a9f76b4a9c">assign</a> (n);</div>
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<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  <a class="code" href="structfaiss_1_1Level1Quantizer.html#a3cf99e2ee92b8558a066f821efab95d5">quantizer</a>-><a class="code" href="structfaiss_1_1Index.html#a8bc5d8d1cd0dd7b34b3c98a9f76b4a9c">assign</a> (n, x, assign.data());</div>
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<div class="line"><a name="l00197"></a><span class="lineno"> 197</span> </div>
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<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i < n; i++) {</div>
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<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  <a class="code" href="structfaiss_1_1Index.html#ad3f0d3071f987baabbdd3da4500c87ea">idx_t</a> <span class="keywordtype">id</span> = new_ids[i];</div>
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<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  FAISS_THROW_IF_NOT_MSG (0 <= <span class="keywordtype">id</span> && <span class="keywordtype">id</span> < <a class="code" href="structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd">ntotal</a>,</div>
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<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  <span class="stringliteral">"id to update out of range"</span>);</div>
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<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  { <span class="comment">// remove old one</span></div>
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<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  <span class="keywordtype">long</span> dm = direct_map[id];</div>
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<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  <span class="keywordtype">long</span> ofs = dm & 0xffffffff;</div>
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<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  <span class="keywordtype">long</span> il = dm >> 32;</div>
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<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  <span class="keywordtype">size_t</span> l = <a class="code" href="structfaiss_1_1IndexIVF.html#aa0e8fc5e04cbd8e0dde61f98bc7dd0bc">invlists</a>-><a class="code" href="structfaiss_1_1InvertedLists.html#a9bd256053ee360473842105460fe285f">list_size</a> (il);</div>
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<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  <span class="keywordflow">if</span> (ofs != l - 1) { <span class="comment">// move l - 1 to ofs</span></div>
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<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  <span class="keywordtype">long</span> id2 = <a class="code" href="structfaiss_1_1IndexIVF.html#aa0e8fc5e04cbd8e0dde61f98bc7dd0bc">invlists</a>-><a class="code" href="structfaiss_1_1InvertedLists.html#a21b52cdb0601cd225bd7924932310876">get_single_id</a> (il, l - 1);</div>
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<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  direct_map[id2] = (il << 32) | ofs;</div>
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<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  <a class="code" href="structfaiss_1_1IndexIVF.html#aa0e8fc5e04cbd8e0dde61f98bc7dd0bc">invlists</a>->update_entry (il, ofs, id2,</div>
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<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  <a class="code" href="structfaiss_1_1IndexIVF.html#aa0e8fc5e04cbd8e0dde61f98bc7dd0bc">invlists</a>-><a class="code" href="structfaiss_1_1InvertedLists.html#afc2760bed7c210f2fad9b03109f561ee">get_single_code</a> (il, l - 1));</div>
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<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  }</div>
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<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  <a class="code" href="structfaiss_1_1IndexIVF.html#aa0e8fc5e04cbd8e0dde61f98bc7dd0bc">invlists</a>->resize (il, l - 1);</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>  { <span class="comment">// insert new one</span></div>
|
|
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  <span class="keywordtype">long</span> il = assign[i];</div>
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<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  <span class="keywordtype">size_t</span> l = <a class="code" href="structfaiss_1_1IndexIVF.html#aa0e8fc5e04cbd8e0dde61f98bc7dd0bc">invlists</a>-><a class="code" href="structfaiss_1_1InvertedLists.html#a9bd256053ee360473842105460fe285f">list_size</a> (il);</div>
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<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  <span class="keywordtype">long</span> dm = (il << 32) | l;</div>
|
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<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  direct_map[id] = dm;</div>
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<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  <a class="code" href="structfaiss_1_1IndexIVF.html#aa0e8fc5e04cbd8e0dde61f98bc7dd0bc">invlists</a>-><a class="code" href="structfaiss_1_1InvertedLists.html#acd3e36cc06fc49e02773e403a84dba95">add_entry</a> (il, <span class="keywordtype">id</span>, (<span class="keyword">const</span> uint8_t*)(x + i * <a class="code" href="structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d">d</a>));</div>
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<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  }</div>
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<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  }</div>
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<div class="line"><a name="l00223"></a><span class="lineno"> 223</span> </div>
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<div class="line"><a name="l00224"></a><span class="lineno"> 224</span> }</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"><a class="line" href="structfaiss_1_1IndexIVFFlat.html#a1267faf361fc3831ddafe7abc51f0ba2"> 226</a></span> <span class="keywordtype">void</span> <a class="code" href="structfaiss_1_1IndexIVFFlat.html#a1267faf361fc3831ddafe7abc51f0ba2">IndexIVFFlat::reconstruct_from_offset</a> (<span class="keywordtype">long</span> list_no, <span class="keywordtype">long</span> offset,</div>
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<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  <span class="keywordtype">float</span>* recons)<span class="keyword"> const</span></div>
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<div class="line"><a name="l00228"></a><span class="lineno"> 228</span> <span class="keyword"></span>{</div>
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<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  memcpy (recons, <a class="code" href="structfaiss_1_1IndexIVF.html#aa0e8fc5e04cbd8e0dde61f98bc7dd0bc">invlists</a>-><a class="code" href="structfaiss_1_1InvertedLists.html#afc2760bed7c210f2fad9b03109f561ee">get_single_code</a> (list_no, offset), <a class="code" href="structfaiss_1_1IndexIVF.html#a46d1aeddb60643c5b3f096147c3e028f">code_size</a>);</div>
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<div class="line"><a name="l00230"></a><span class="lineno"> 230</span> }</div>
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<div class="line"><a name="l00231"></a><span class="lineno"> 231</span> </div>
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<div class="line"><a name="l00232"></a><span class="lineno"> 232</span> <span class="comment">/*****************************************</span></div>
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<div class="line"><a name="l00233"></a><span class="lineno"> 233</span> <span class="comment"> * IndexIVFFlatDedup implementation</span></div>
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<div class="line"><a name="l00234"></a><span class="lineno"> 234</span> <span class="comment"> ******************************************/</span></div>
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<div class="line"><a name="l00235"></a><span class="lineno"> 235</span> </div>
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<div class="line"><a name="l00236"></a><span class="lineno"> 236</span> IndexIVFFlatDedup::IndexIVFFlatDedup (</div>
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<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  <a class="code" href="structfaiss_1_1Index.html">Index</a> * quantizer, <span class="keywordtype">size_t</span> d, <span class="keywordtype">size_t</span> nlist_,</div>
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<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  <a class="code" href="namespacefaiss.html#afd12191c638da74760ff397cf319752c">MetricType</a> metric_type):</div>
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<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  <a class="code" href="structfaiss_1_1IndexIVFFlat.html">IndexIVFFlat</a> (quantizer, d, nlist_, metric_type)</div>
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<div class="line"><a name="l00240"></a><span class="lineno"> 240</span> {}</div>
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<div class="line"><a name="l00241"></a><span class="lineno"> 241</span> </div>
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<div class="line"><a name="l00242"></a><span class="lineno"> 242</span> </div>
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<div class="line"><a name="l00243"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexIVFFlatDedup.html#a24002a8c3f12aa2784833c14b13b427e"> 243</a></span> <span class="keywordtype">void</span> <a class="code" href="structfaiss_1_1IndexIVFFlatDedup.html#a24002a8c3f12aa2784833c14b13b427e">IndexIVFFlatDedup::train</a>(idx_t n, <span class="keyword">const</span> <span class="keywordtype">float</span>* x)</div>
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<div class="line"><a name="l00244"></a><span class="lineno"> 244</span> {</div>
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<div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  std::unordered_map<uint64_t, idx_t> map;</div>
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<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  <span class="keywordtype">float</span> * x2 = <span class="keyword">new</span> <span class="keywordtype">float</span> [n * <a class="code" href="structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d">d</a>];</div>
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<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  <a class="code" href="structfaiss_1_1ScopeDeleter.html">ScopeDeleter<float></a> del (x2);</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="keywordtype">long</span> n2 = 0;</div>
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<div class="line"><a name="l00250"></a><span class="lineno"> 250</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="l00251"></a><span class="lineno"> 251</span>  uint64_t hash = <a class="code" href="namespacefaiss.html#abefd45801bab63d2eb71005ad7a51d32">hash_bytes</a>((uint8_t *)(x + i * <a class="code" href="structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d">d</a>), <a class="code" href="structfaiss_1_1IndexIVF.html#a46d1aeddb60643c5b3f096147c3e028f">code_size</a>);</div>
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<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  <span class="keywordflow">if</span> (map.count(hash) &&</div>
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<div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  !memcmp (x2 + map[hash] * d, x + i * d, <a class="code" href="structfaiss_1_1IndexIVF.html#a46d1aeddb60643c5b3f096147c3e028f">code_size</a>)) {</div>
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<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  <span class="comment">// is duplicate, skip</span></div>
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<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  } <span class="keywordflow">else</span> {</div>
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<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  map [hash] = n2;</div>
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<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  memcpy (x2 + n2 * d, x + i * d, <a class="code" href="structfaiss_1_1IndexIVF.html#a46d1aeddb60643c5b3f096147c3e028f">code_size</a>);</div>
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<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  n2 ++;</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="keywordflow">if</span> (<a class="code" href="structfaiss_1_1Index.html#a5590d847c5c2b958affd2a05e58a6f23">verbose</a>) {</div>
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<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  printf (<span class="stringliteral">"IndexIVFFlatDedup::train: train on %ld points after dedup "</span></div>
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<div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  <span class="stringliteral">"(was %ld points)\n"</span>, n2, n);</div>
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<div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  }</div>
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<div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  <a class="code" href="structfaiss_1_1IndexIVF.html#a7a1d5eec194db0977b2318c6ed6a2b86">IndexIVFFlat::train</a> (n2, x2);</div>
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<div class="line"><a name="l00266"></a><span class="lineno"> 266</span> }</div>
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<div class="line"><a name="l00267"></a><span class="lineno"> 267</span> </div>
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<div class="line"><a name="l00268"></a><span class="lineno"> 268</span> </div>
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<div class="line"><a name="l00269"></a><span class="lineno"> 269</span> </div>
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<div class="line"><a name="l00270"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexIVFFlatDedup.html#ae1d5f41f4987f4e02938738436f082bf"> 270</a></span> <span class="keywordtype">void</span> <a class="code" href="structfaiss_1_1IndexIVFFlatDedup.html#ae1d5f41f4987f4e02938738436f082bf">IndexIVFFlatDedup::add_with_ids</a>(</div>
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<div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  idx_t na, <span class="keyword">const</span> <span class="keywordtype">float</span>* x, <span class="keyword">const</span> <span class="keywordtype">long</span>* xids)</div>
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<div class="line"><a name="l00272"></a><span class="lineno"> 272</span> {</div>
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<div class="line"><a name="l00273"></a><span class="lineno"> 273</span> </div>
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<div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  FAISS_THROW_IF_NOT (<a class="code" href="structfaiss_1_1Index.html#a6e92732617c4dbe364e7678dd8773a7f">is_trained</a>);</div>
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<div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  assert (<a class="code" href="structfaiss_1_1IndexIVF.html#aa0e8fc5e04cbd8e0dde61f98bc7dd0bc">invlists</a>);</div>
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<div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  FAISS_THROW_IF_NOT_MSG (</div>
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<div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  !<a class="code" href="structfaiss_1_1IndexIVF.html#aedd0c14b5654295b291638ec7f9f9517">maintain_direct_map</a>,</div>
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<div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  <span class="stringliteral">"IVFFlatDedup not implemented with direct_map"</span>);</div>
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<div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  <span class="keywordtype">long</span> * idx = <span class="keyword">new</span> <span class="keywordtype">long</span> [na];</div>
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<div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  <a class="code" href="structfaiss_1_1ScopeDeleter.html">ScopeDeleter<long></a> del (idx);</div>
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<div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  <a class="code" href="structfaiss_1_1Level1Quantizer.html#a3cf99e2ee92b8558a066f821efab95d5">quantizer</a>-><a class="code" href="structfaiss_1_1Index.html#a8bc5d8d1cd0dd7b34b3c98a9f76b4a9c">assign</a> (na, x, idx);</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="keywordtype">long</span> n_add = 0, n_dup = 0;</div>
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<div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  <span class="comment">// TODO make a omp loop with this</span></div>
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<div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i < na; i++) {</div>
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<div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  idx_t <span class="keywordtype">id</span> = xids ? xids[i] : <a class="code" href="structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd">ntotal</a> + i;</div>
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<div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  <span class="keywordtype">long</span> list_no = idx [i];</div>
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<div class="line"><a name="l00288"></a><span class="lineno"> 288</span> </div>
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<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  <span class="keywordflow">if</span> (list_no < 0) {</div>
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<div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  <span class="keywordflow">continue</span>;</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="keyword">const</span> <span class="keywordtype">float</span> *xi = x + i * <a class="code" href="structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d">d</a>;</div>
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<div class="line"><a name="l00293"></a><span class="lineno"> 293</span> </div>
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<div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  <span class="comment">// search if there is already an entry with that id</span></div>
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<div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  <a class="code" href="structfaiss_1_1InvertedLists_1_1ScopedCodes.html">InvertedLists::ScopedCodes</a> codes (<a class="code" href="structfaiss_1_1IndexIVF.html#aa0e8fc5e04cbd8e0dde61f98bc7dd0bc">invlists</a>, list_no);</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="keywordtype">long</span> n = <a class="code" href="structfaiss_1_1IndexIVF.html#aa0e8fc5e04cbd8e0dde61f98bc7dd0bc">invlists</a>-><a class="code" href="structfaiss_1_1InvertedLists.html#a9bd256053ee360473842105460fe285f">list_size</a> (list_no);</div>
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<div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  <span class="keywordtype">long</span> offset = -1;</div>
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<div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  <span class="keywordflow">for</span> (<span class="keywordtype">long</span> o = 0; o < n; o++) {</div>
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<div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  <span class="keywordflow">if</span> (!memcmp (codes.get() + o * <a class="code" href="structfaiss_1_1IndexIVF.html#a46d1aeddb60643c5b3f096147c3e028f">code_size</a>,</div>
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<div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  xi, <a class="code" href="structfaiss_1_1IndexIVF.html#a46d1aeddb60643c5b3f096147c3e028f">code_size</a>)) {</div>
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<div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  offset = o;</div>
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<div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  <span class="keywordflow">break</span>;</div>
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<div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  }</div>
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<div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  }</div>
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<div class="line"><a name="l00306"></a><span class="lineno"> 306</span> </div>
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<div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  <span class="keywordflow">if</span> (offset == -1) { <span class="comment">// not found</span></div>
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<div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  <a class="code" href="structfaiss_1_1IndexIVF.html#aa0e8fc5e04cbd8e0dde61f98bc7dd0bc">invlists</a>-><a class="code" href="structfaiss_1_1InvertedLists.html#acd3e36cc06fc49e02773e403a84dba95">add_entry</a> (list_no, <span class="keywordtype">id</span>, (<span class="keyword">const</span> uint8_t*) xi);</div>
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<div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  } <span class="keywordflow">else</span> {</div>
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<div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  <span class="comment">// mark equivalence</span></div>
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<div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  idx_t id2 = <a class="code" href="structfaiss_1_1IndexIVF.html#aa0e8fc5e04cbd8e0dde61f98bc7dd0bc">invlists</a>-><a class="code" href="structfaiss_1_1InvertedLists.html#a21b52cdb0601cd225bd7924932310876">get_single_id</a> (list_no, offset);</div>
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<div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  std::pair<idx_t, idx_t> pair (id2, <span class="keywordtype">id</span>);</div>
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<div class="line"><a name="l00313"></a><span class="lineno"> 313</span>  <a class="code" href="structfaiss_1_1IndexIVFFlatDedup.html#a1ff220494d504dd806e5daf290ec0e7a">instances</a>.insert (pair);</div>
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<div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  n_dup ++;</div>
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<div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  }</div>
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<div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  n_add++;</div>
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<div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  }</div>
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<div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  <span class="keywordflow">if</span> (<a class="code" href="structfaiss_1_1Index.html#a5590d847c5c2b958affd2a05e58a6f23">verbose</a>) {</div>
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<div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  printf(<span class="stringliteral">"IndexIVFFlat::add_with_ids: added %ld / %ld vectors"</span></div>
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<div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  <span class="stringliteral">" (out of which %ld are duplicates)\n"</span>,</div>
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<div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  n_add, na, n_dup);</div>
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<div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  }</div>
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<div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  <a class="code" href="structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd">ntotal</a> += n_add;</div>
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<div class="line"><a name="l00324"></a><span class="lineno"> 324</span> }</div>
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<div class="line"><a name="l00325"></a><span class="lineno"> 325</span> </div>
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<div class="line"><a name="l00326"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexIVFFlatDedup.html#a88f84494a02e8ceab79982bcbcab4fa5"> 326</a></span> <span class="keywordtype">void</span> <a class="code" href="structfaiss_1_1IndexIVFFlatDedup.html#a88f84494a02e8ceab79982bcbcab4fa5">IndexIVFFlatDedup::search_preassigned</a> (</div>
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<div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  idx_t n, <span class="keyword">const</span> <span class="keywordtype">float</span> *x, idx_t k,</div>
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<div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  <span class="keyword">const</span> idx_t *assign,</div>
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<div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  <span class="keyword">const</span> <span class="keywordtype">float</span> *centroid_dis,</div>
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<div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  <span class="keywordtype">float</span> *distances, idx_t *labels,</div>
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<div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  <span class="keywordtype">bool</span> store_pairs,</div>
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<div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  <span class="keyword">const</span> <a class="code" href="structfaiss_1_1IVFSearchParameters.html">IVFSearchParameters</a> *params)<span class="keyword"> const</span></div>
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<div class="line"><a name="l00333"></a><span class="lineno"> 333</span> <span class="keyword"></span>{</div>
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<div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  FAISS_THROW_IF_NOT_MSG (</div>
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<div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  !store_pairs, <span class="stringliteral">"store_pairs not supported in IVFDedup"</span>);</div>
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<div class="line"><a name="l00336"></a><span class="lineno"> 336</span> </div>
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<div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  <a class="code" href="structfaiss_1_1IndexIVF.html#a7cf3a1963394f87d61913420a66eb468">IndexIVFFlat::search_preassigned</a> (n, x, k, assign, centroid_dis,</div>
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<div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  distances, labels, <span class="keyword">false</span>,</div>
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<div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  params);</div>
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<div class="line"><a name="l00340"></a><span class="lineno"> 340</span> </div>
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<div class="line"><a name="l00341"></a><span class="lineno"> 341</span>  std::vector <idx_t> labels2 (k);</div>
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|
<div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  std::vector <float> dis2 (k);</div>
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<div class="line"><a name="l00343"></a><span class="lineno"> 343</span> </div>
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<div class="line"><a name="l00344"></a><span class="lineno"> 344</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="l00345"></a><span class="lineno"> 345</span>  idx_t *labels1 = labels + i * k;</div>
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<div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  <span class="keywordtype">float</span> *dis1 = distances + i * k;</div>
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<div class="line"><a name="l00347"></a><span class="lineno"> 347</span>  <span class="keywordtype">long</span> j = 0;</div>
|
|
<div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  <span class="keywordflow">for</span> (; j < k; j++) {</div>
|
|
<div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  <span class="keywordflow">if</span> (<a class="code" href="structfaiss_1_1IndexIVFFlatDedup.html#a1ff220494d504dd806e5daf290ec0e7a">instances</a>.find (labels1[j]) != <a class="code" href="structfaiss_1_1IndexIVFFlatDedup.html#a1ff220494d504dd806e5daf290ec0e7a">instances</a>.end ()) {</div>
|
|
<div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  <span class="comment">// a duplicate: special handling</span></div>
|
|
<div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  <span class="keywordflow">break</span>;</div>
|
|
<div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  }</div>
|
|
<div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  }</div>
|
|
<div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  <span class="keywordflow">if</span> (j < k) {</div>
|
|
<div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  <span class="comment">// there are duplicates, special handling</span></div>
|
|
<div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  <span class="keywordtype">long</span> j0 = j;</div>
|
|
<div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  <span class="keywordtype">long</span> rp = j;</div>
|
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<div class="line"><a name="l00358"></a><span class="lineno"> 358</span>  <span class="keywordflow">while</span> (j < k) {</div>
|
|
<div class="line"><a name="l00359"></a><span class="lineno"> 359</span>  <span class="keyword">auto</span> range = <a class="code" href="structfaiss_1_1IndexIVFFlatDedup.html#a1ff220494d504dd806e5daf290ec0e7a">instances</a>.equal_range (labels1[rp]);</div>
|
|
<div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  <span class="keywordtype">float</span> dis = dis1[rp];</div>
|
|
<div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  labels2[j] = labels1[rp];</div>
|
|
<div class="line"><a name="l00362"></a><span class="lineno"> 362</span>  dis2[j] = dis;</div>
|
|
<div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  j ++;</div>
|
|
<div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  <span class="keywordflow">for</span> (<span class="keyword">auto</span> it = range.first; j < k && it != range.second; ++it) {</div>
|
|
<div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  labels2[j] = it->second;</div>
|
|
<div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  dis2[j] = dis;</div>
|
|
<div class="line"><a name="l00367"></a><span class="lineno"> 367</span>  j++;</div>
|
|
<div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  }</div>
|
|
<div class="line"><a name="l00369"></a><span class="lineno"> 369</span>  rp++;</div>
|
|
<div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  }</div>
|
|
<div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  memcpy (labels1 + j0, labels2.data() + j0,</div>
|
|
<div class="line"><a name="l00372"></a><span class="lineno"> 372</span>  <span class="keyword">sizeof</span>(labels1[0]) * (k - j0));</div>
|
|
<div class="line"><a name="l00373"></a><span class="lineno"> 373</span>  memcpy (dis1 + j0, dis2.data() + j0,</div>
|
|
<div class="line"><a name="l00374"></a><span class="lineno"> 374</span>  <span class="keyword">sizeof</span>(dis2[0]) * (k - j0));</div>
|
|
<div class="line"><a name="l00375"></a><span class="lineno"> 375</span>  }</div>
|
|
<div class="line"><a name="l00376"></a><span class="lineno"> 376</span>  }</div>
|
|
<div class="line"><a name="l00377"></a><span class="lineno"> 377</span> </div>
|
|
<div class="line"><a name="l00378"></a><span class="lineno"> 378</span> }</div>
|
|
<div class="line"><a name="l00379"></a><span class="lineno"> 379</span> </div>
|
|
<div class="line"><a name="l00380"></a><span class="lineno"> 380</span> </div>
|
|
<div class="line"><a name="l00381"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexIVFFlatDedup.html#aae53833bb1e4041358cd4e5407d6a296"> 381</a></span> <span class="keywordtype">long</span> <a class="code" href="structfaiss_1_1IndexIVFFlatDedup.html#aae53833bb1e4041358cd4e5407d6a296">IndexIVFFlatDedup::remove_ids</a>(<span class="keyword">const</span> <a class="code" href="structfaiss_1_1IDSelector.html">IDSelector</a>& sel)</div>
|
|
<div class="line"><a name="l00382"></a><span class="lineno"> 382</span> {</div>
|
|
<div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  std::unordered_map<idx_t, idx_t> replace;</div>
|
|
<div class="line"><a name="l00384"></a><span class="lineno"> 384</span>  std::vector<std::pair<idx_t, idx_t> > toadd;</div>
|
|
<div class="line"><a name="l00385"></a><span class="lineno"> 385</span>  <span class="keywordflow">for</span> (<span class="keyword">auto</span> it = <a class="code" href="structfaiss_1_1IndexIVFFlatDedup.html#a1ff220494d504dd806e5daf290ec0e7a">instances</a>.begin(); it != <a class="code" href="structfaiss_1_1IndexIVFFlatDedup.html#a1ff220494d504dd806e5daf290ec0e7a">instances</a>.end(); ) {</div>
|
|
<div class="line"><a name="l00386"></a><span class="lineno"> 386</span>  <span class="keywordflow">if</span> (sel.is_member(it->first)) {</div>
|
|
<div class="line"><a name="l00387"></a><span class="lineno"> 387</span>  <span class="comment">// then we erase this entry</span></div>
|
|
<div class="line"><a name="l00388"></a><span class="lineno"> 388</span>  <span class="keywordflow">if</span> (!sel.is_member(it->second)) {</div>
|
|
<div class="line"><a name="l00389"></a><span class="lineno"> 389</span>  <span class="comment">// if the second is not erased</span></div>
|
|
<div class="line"><a name="l00390"></a><span class="lineno"> 390</span>  <span class="keywordflow">if</span> (replace.count(it->first) == 0) {</div>
|
|
<div class="line"><a name="l00391"></a><span class="lineno"> 391</span>  replace[it->first] = it->second;</div>
|
|
<div class="line"><a name="l00392"></a><span class="lineno"> 392</span>  } <span class="keywordflow">else</span> { <span class="comment">// remember we should add an element</span></div>
|
|
<div class="line"><a name="l00393"></a><span class="lineno"> 393</span>  std::pair<idx_t, idx_t> new_entry (</div>
|
|
<div class="line"><a name="l00394"></a><span class="lineno"> 394</span>  replace[it->first], it->second);</div>
|
|
<div class="line"><a name="l00395"></a><span class="lineno"> 395</span>  toadd.push_back(new_entry);</div>
|
|
<div class="line"><a name="l00396"></a><span class="lineno"> 396</span>  }</div>
|
|
<div class="line"><a name="l00397"></a><span class="lineno"> 397</span>  }</div>
|
|
<div class="line"><a name="l00398"></a><span class="lineno"> 398</span>  it = <a class="code" href="structfaiss_1_1IndexIVFFlatDedup.html#a1ff220494d504dd806e5daf290ec0e7a">instances</a>.erase(it);</div>
|
|
<div class="line"><a name="l00399"></a><span class="lineno"> 399</span>  } <span class="keywordflow">else</span> {</div>
|
|
<div class="line"><a name="l00400"></a><span class="lineno"> 400</span>  <span class="keywordflow">if</span> (sel.is_member(it->second)) {</div>
|
|
<div class="line"><a name="l00401"></a><span class="lineno"> 401</span>  it = <a class="code" href="structfaiss_1_1IndexIVFFlatDedup.html#a1ff220494d504dd806e5daf290ec0e7a">instances</a>.erase(it);</div>
|
|
<div class="line"><a name="l00402"></a><span class="lineno"> 402</span>  } <span class="keywordflow">else</span> {</div>
|
|
<div class="line"><a name="l00403"></a><span class="lineno"> 403</span>  ++it;</div>
|
|
<div class="line"><a name="l00404"></a><span class="lineno"> 404</span>  }</div>
|
|
<div class="line"><a name="l00405"></a><span class="lineno"> 405</span>  }</div>
|
|
<div class="line"><a name="l00406"></a><span class="lineno"> 406</span>  }</div>
|
|
<div class="line"><a name="l00407"></a><span class="lineno"> 407</span> </div>
|
|
<div class="line"><a name="l00408"></a><span class="lineno"> 408</span>  <a class="code" href="structfaiss_1_1IndexIVFFlatDedup.html#a1ff220494d504dd806e5daf290ec0e7a">instances</a>.insert (toadd.begin(), toadd.end());</div>
|
|
<div class="line"><a name="l00409"></a><span class="lineno"> 409</span> </div>
|
|
<div class="line"><a name="l00410"></a><span class="lineno"> 410</span>  <span class="comment">// mostly copied from IndexIVF.cpp</span></div>
|
|
<div class="line"><a name="l00411"></a><span class="lineno"> 411</span> </div>
|
|
<div class="line"><a name="l00412"></a><span class="lineno"> 412</span>  FAISS_THROW_IF_NOT_MSG (!<a class="code" href="structfaiss_1_1IndexIVF.html#aedd0c14b5654295b291638ec7f9f9517">maintain_direct_map</a>,</div>
|
|
<div class="line"><a name="l00413"></a><span class="lineno"> 413</span>  <span class="stringliteral">"direct map remove not implemented"</span>);</div>
|
|
<div class="line"><a name="l00414"></a><span class="lineno"> 414</span> </div>
|
|
<div class="line"><a name="l00415"></a><span class="lineno"> 415</span>  std::vector<long> toremove(<a class="code" href="structfaiss_1_1Level1Quantizer.html#a1c4fc9d874d9492ee0ea27a5be388fa7">nlist</a>);</div>
|
|
<div class="line"><a name="l00416"></a><span class="lineno"> 416</span> </div>
|
|
<div class="line"><a name="l00417"></a><span class="lineno"> 417</span> <span class="preprocessor">#pragma omp parallel for</span></div>
|
|
<div class="line"><a name="l00418"></a><span class="lineno"> 418</span> <span class="preprocessor"></span> <span class="keywordflow">for</span> (<span class="keywordtype">long</span> i = 0; i < <a class="code" href="structfaiss_1_1Level1Quantizer.html#a1c4fc9d874d9492ee0ea27a5be388fa7">nlist</a>; i++) {</div>
|
|
<div class="line"><a name="l00419"></a><span class="lineno"> 419</span>  <span class="keywordtype">long</span> l0 = <a class="code" href="structfaiss_1_1IndexIVF.html#aa0e8fc5e04cbd8e0dde61f98bc7dd0bc">invlists</a>-><a class="code" href="structfaiss_1_1InvertedLists.html#a9bd256053ee360473842105460fe285f">list_size</a> (i), l = l0, j = 0;</div>
|
|
<div class="line"><a name="l00420"></a><span class="lineno"> 420</span>  <a class="code" href="structfaiss_1_1InvertedLists_1_1ScopedIds.html">InvertedLists::ScopedIds</a> idsi (<a class="code" href="structfaiss_1_1IndexIVF.html#aa0e8fc5e04cbd8e0dde61f98bc7dd0bc">invlists</a>, i);</div>
|
|
<div class="line"><a name="l00421"></a><span class="lineno"> 421</span>  <span class="keywordflow">while</span> (j < l) {</div>
|
|
<div class="line"><a name="l00422"></a><span class="lineno"> 422</span>  <span class="keywordflow">if</span> (sel.is_member (idsi[j])) {</div>
|
|
<div class="line"><a name="l00423"></a><span class="lineno"> 423</span>  <span class="keywordflow">if</span> (replace.count(idsi[j]) == 0) {</div>
|
|
<div class="line"><a name="l00424"></a><span class="lineno"> 424</span>  l--;</div>
|
|
<div class="line"><a name="l00425"></a><span class="lineno"> 425</span>  <a class="code" href="structfaiss_1_1IndexIVF.html#aa0e8fc5e04cbd8e0dde61f98bc7dd0bc">invlists</a>->update_entry (</div>
|
|
<div class="line"><a name="l00426"></a><span class="lineno"> 426</span>  i, j,</div>
|
|
<div class="line"><a name="l00427"></a><span class="lineno"> 427</span>  <a class="code" href="structfaiss_1_1IndexIVF.html#aa0e8fc5e04cbd8e0dde61f98bc7dd0bc">invlists</a>-><a class="code" href="structfaiss_1_1InvertedLists.html#a21b52cdb0601cd225bd7924932310876">get_single_id</a> (i, l),</div>
|
|
<div class="line"><a name="l00428"></a><span class="lineno"> 428</span>  <a class="code" href="structfaiss_1_1InvertedLists_1_1ScopedCodes.html">InvertedLists::ScopedCodes</a> (<a class="code" href="structfaiss_1_1IndexIVF.html#aa0e8fc5e04cbd8e0dde61f98bc7dd0bc">invlists</a>, i, l).get());</div>
|
|
<div class="line"><a name="l00429"></a><span class="lineno"> 429</span>  } <span class="keywordflow">else</span> {</div>
|
|
<div class="line"><a name="l00430"></a><span class="lineno"> 430</span>  <a class="code" href="structfaiss_1_1IndexIVF.html#aa0e8fc5e04cbd8e0dde61f98bc7dd0bc">invlists</a>->update_entry (</div>
|
|
<div class="line"><a name="l00431"></a><span class="lineno"> 431</span>  i, j,</div>
|
|
<div class="line"><a name="l00432"></a><span class="lineno"> 432</span>  replace[idsi[j]],</div>
|
|
<div class="line"><a name="l00433"></a><span class="lineno"> 433</span>  <a class="code" href="structfaiss_1_1InvertedLists_1_1ScopedCodes.html">InvertedLists::ScopedCodes</a> (<a class="code" href="structfaiss_1_1IndexIVF.html#aa0e8fc5e04cbd8e0dde61f98bc7dd0bc">invlists</a>, i, j).<span class="keyword">get</span>());</div>
|
|
<div class="line"><a name="l00434"></a><span class="lineno"> 434</span>  j++;</div>
|
|
<div class="line"><a name="l00435"></a><span class="lineno"> 435</span>  }</div>
|
|
<div class="line"><a name="l00436"></a><span class="lineno"> 436</span>  } <span class="keywordflow">else</span> {</div>
|
|
<div class="line"><a name="l00437"></a><span class="lineno"> 437</span>  j++;</div>
|
|
<div class="line"><a name="l00438"></a><span class="lineno"> 438</span>  }</div>
|
|
<div class="line"><a name="l00439"></a><span class="lineno"> 439</span>  }</div>
|
|
<div class="line"><a name="l00440"></a><span class="lineno"> 440</span>  toremove[i] = l0 - l;</div>
|
|
<div class="line"><a name="l00441"></a><span class="lineno"> 441</span>  }</div>
|
|
<div class="line"><a name="l00442"></a><span class="lineno"> 442</span>  <span class="comment">// this will not run well in parallel on ondisk because of possible shrinks</span></div>
|
|
<div class="line"><a name="l00443"></a><span class="lineno"> 443</span>  <span class="keywordtype">long</span> nremove = 0;</div>
|
|
<div class="line"><a name="l00444"></a><span class="lineno"> 444</span>  <span class="keywordflow">for</span> (<span class="keywordtype">long</span> i = 0; i < <a class="code" href="structfaiss_1_1Level1Quantizer.html#a1c4fc9d874d9492ee0ea27a5be388fa7">nlist</a>; i++) {</div>
|
|
<div class="line"><a name="l00445"></a><span class="lineno"> 445</span>  <span class="keywordflow">if</span> (toremove[i] > 0) {</div>
|
|
<div class="line"><a name="l00446"></a><span class="lineno"> 446</span>  nremove += toremove[i];</div>
|
|
<div class="line"><a name="l00447"></a><span class="lineno"> 447</span>  <a class="code" href="structfaiss_1_1IndexIVF.html#aa0e8fc5e04cbd8e0dde61f98bc7dd0bc">invlists</a>->resize(</div>
|
|
<div class="line"><a name="l00448"></a><span class="lineno"> 448</span>  i, <a class="code" href="structfaiss_1_1IndexIVF.html#aa0e8fc5e04cbd8e0dde61f98bc7dd0bc">invlists</a>-><a class="code" href="structfaiss_1_1InvertedLists.html#a9bd256053ee360473842105460fe285f">list_size</a>(i) - toremove[i]);</div>
|
|
<div class="line"><a name="l00449"></a><span class="lineno"> 449</span>  }</div>
|
|
<div class="line"><a name="l00450"></a><span class="lineno"> 450</span>  }</div>
|
|
<div class="line"><a name="l00451"></a><span class="lineno"> 451</span>  <a class="code" href="structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd">ntotal</a> -= nremove;</div>
|
|
<div class="line"><a name="l00452"></a><span class="lineno"> 452</span>  <span class="keywordflow">return</span> nremove;</div>
|
|
<div class="line"><a name="l00453"></a><span class="lineno"> 453</span> }</div>
|
|
<div class="line"><a name="l00454"></a><span class="lineno"> 454</span> </div>
|
|
<div class="line"><a name="l00455"></a><span class="lineno"> 455</span> </div>
|
|
<div class="line"><a name="l00456"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexIVFFlatDedup.html#acb4f1350039546f5001c5fc36ac0fb2d"> 456</a></span> <span class="keywordtype">void</span> <a class="code" href="structfaiss_1_1IndexIVFFlatDedup.html#acb4f1350039546f5001c5fc36ac0fb2d">IndexIVFFlatDedup::range_search</a>(</div>
|
|
<div class="line"><a name="l00457"></a><span class="lineno"> 457</span>  idx_t ,</div>
|
|
<div class="line"><a name="l00458"></a><span class="lineno"> 458</span>  <span class="keyword">const</span> <span class="keywordtype">float</span>* ,</div>
|
|
<div class="line"><a name="l00459"></a><span class="lineno"> 459</span>  <span class="keywordtype">float</span> ,</div>
|
|
<div class="line"><a name="l00460"></a><span class="lineno"> 460</span>  <a class="code" href="structfaiss_1_1RangeSearchResult.html">RangeSearchResult</a>* )<span class="keyword"> const</span></div>
|
|
<div class="line"><a name="l00461"></a><span class="lineno"> 461</span> <span class="keyword"></span>{</div>
|
|
<div class="line"><a name="l00462"></a><span class="lineno"> 462</span>  FAISS_THROW_MSG (<span class="stringliteral">"not implemented"</span>);</div>
|
|
<div class="line"><a name="l00463"></a><span class="lineno"> 463</span> }</div>
|
|
<div class="line"><a name="l00464"></a><span class="lineno"> 464</span> </div>
|
|
<div class="line"><a name="l00465"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexIVFFlatDedup.html#a0782b04472858d993ad4c0ffc81b1844"> 465</a></span> <span class="keywordtype">void</span> <a class="code" href="structfaiss_1_1IndexIVFFlatDedup.html#a0782b04472858d993ad4c0ffc81b1844">IndexIVFFlatDedup::update_vectors</a> (<span class="keywordtype">int</span> , idx_t *, <span class="keyword">const</span> <span class="keywordtype">float</span> *)</div>
|
|
<div class="line"><a name="l00466"></a><span class="lineno"> 466</span> {</div>
|
|
<div class="line"><a name="l00467"></a><span class="lineno"> 467</span>  FAISS_THROW_MSG (<span class="stringliteral">"not implemented"</span>);</div>
|
|
<div class="line"><a name="l00468"></a><span class="lineno"> 468</span> }</div>
|
|
<div class="line"><a name="l00469"></a><span class="lineno"> 469</span> </div>
|
|
<div class="line"><a name="l00470"></a><span class="lineno"> 470</span> </div>
|
|
<div class="line"><a name="l00471"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexIVFFlatDedup.html#adedda3a8e10704acc5639b7f6aa065f7"> 471</a></span> <span class="keywordtype">void</span> <a class="code" href="structfaiss_1_1IndexIVFFlatDedup.html#adedda3a8e10704acc5639b7f6aa065f7">IndexIVFFlatDedup::reconstruct_from_offset</a> (</div>
|
|
<div class="line"><a name="l00472"></a><span class="lineno"> 472</span>  <span class="keywordtype">long</span> , <span class="keywordtype">long</span> ,</div>
|
|
<div class="line"><a name="l00473"></a><span class="lineno"> 473</span>  <span class="keywordtype">float</span>* )<span class="keyword"> const</span></div>
|
|
<div class="line"><a name="l00474"></a><span class="lineno"> 474</span> <span class="keyword"></span>{</div>
|
|
<div class="line"><a name="l00475"></a><span class="lineno"> 475</span>  FAISS_THROW_MSG (<span class="stringliteral">"not implemented"</span>);</div>
|
|
<div class="line"><a name="l00476"></a><span class="lineno"> 476</span> }</div>
|
|
<div class="line"><a name="l00477"></a><span class="lineno"> 477</span> </div>
|
|
<div class="line"><a name="l00478"></a><span class="lineno"> 478</span> </div>
|
|
<div class="line"><a name="l00479"></a><span class="lineno"> 479</span> </div>
|
|
<div class="line"><a name="l00480"></a><span class="lineno"> 480</span> </div>
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<div class="line"><a name="l00481"></a><span class="lineno"> 481</span> } <span class="comment">// namespace faiss</span></div>
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<div class="ttc" id="structfaiss_1_1IndexIVFFlatDedup_html_a24002a8c3f12aa2784833c14b13b427e"><div class="ttname"><a href="structfaiss_1_1IndexIVFFlatDedup.html#a24002a8c3f12aa2784833c14b13b427e">faiss::IndexIVFFlatDedup::train</a></div><div class="ttdeci">void train(idx_t n, const float *x) override</div><div class="ttdoc">also dedups the training set </div><div class="ttdef"><b>Definition:</b> <a href="IndexIVFFlat_8cpp_source.html#l00243">IndexIVFFlat.cpp:243</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexIVF_html_a7cf3a1963394f87d61913420a66eb468"><div class="ttname"><a href="structfaiss_1_1IndexIVF.html#a7cf3a1963394f87d61913420a66eb468">faiss::IndexIVF::search_preassigned</a></div><div class="ttdeci">virtual void search_preassigned(idx_t n, const float *x, idx_t k, const idx_t *assign, const float *centroid_dis, float *distances, idx_t *labels, bool store_pairs, const IVFSearchParameters *params=nullptr) const </div><div class="ttdef"><b>Definition:</b> <a href="IndexIVF_8cpp_source.html#l00250">IndexIVF.cpp:250</a></div></div>
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<div class="ttc" id="namespacefaiss_html_a7466bd32de31640860393a701eaac5ad"><div class="ttname"><a href="namespacefaiss.html#a7466bd32de31640860393a701eaac5ad">faiss::fvec_L2sqr</a></div><div class="ttdeci">float fvec_L2sqr(const float *x, const float *y, size_t d)</div><div class="ttdoc">Squared L2 distance between two vectors. </div><div class="ttdef"><b>Definition:</b> <a href="utils__simd_8cpp_source.html#l00501">utils_simd.cpp:501</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexIVFFlatDedup_html_adedda3a8e10704acc5639b7f6aa065f7"><div class="ttname"><a href="structfaiss_1_1IndexIVFFlatDedup.html#adedda3a8e10704acc5639b7f6aa065f7">faiss::IndexIVFFlatDedup::reconstruct_from_offset</a></div><div class="ttdeci">void reconstruct_from_offset(long list_no, long offset, float *recons) const override</div><div class="ttdoc">not implemented </div><div class="ttdef"><b>Definition:</b> <a href="IndexIVFFlat_8cpp_source.html#l00471">IndexIVFFlat.cpp:471</a></div></div>
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<div class="ttc" id="structfaiss_1_1CMax_html"><div class="ttname"><a href="structfaiss_1_1CMax.html">faiss::CMax</a></div><div class="ttdef"><b>Definition:</b> <a href="Heap_8h_source.html#l00047">Heap.h:47</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexIVFFlat_html_a2c445db1ccbad852dad17e60e0fac950"><div class="ttname"><a href="structfaiss_1_1IndexIVFFlat.html#a2c445db1ccbad852dad17e60e0fac950">faiss::IndexIVFFlat::encode_vectors</a></div><div class="ttdeci">void encode_vectors(idx_t n, const float *x, const idx_t *list_nos, uint8_t *codes) const override</div><div class="ttdef"><b>Definition:</b> <a href="IndexIVFFlat_8cpp_source.html#l00082">IndexIVFFlat.cpp:82</a></div></div>
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<div class="ttc" id="structfaiss_1_1Index_html_a8bc5d8d1cd0dd7b34b3c98a9f76b4a9c"><div class="ttname"><a href="structfaiss_1_1Index.html#a8bc5d8d1cd0dd7b34b3c98a9f76b4a9c">faiss::Index::assign</a></div><div class="ttdeci">void assign(idx_t n, const float *x, idx_t *labels, idx_t k=1)</div><div class="ttdef"><b>Definition:</b> <a href="Index_8cpp_source.html#l00034">Index.cpp:34</a></div></div>
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<div class="ttc" id="structfaiss_1_1IDSelector_html"><div class="ttname"><a href="structfaiss_1_1IDSelector.html">faiss::IDSelector</a></div><div class="ttdef"><b>Definition:</b> <a href="AuxIndexStructures_8h_source.html#l00054">AuxIndexStructures.h:54</a></div></div>
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<div class="ttc" id="structfaiss_1_1InvertedLists_html_a9bd256053ee360473842105460fe285f"><div class="ttname"><a href="structfaiss_1_1InvertedLists.html#a9bd256053ee360473842105460fe285f">faiss::InvertedLists::list_size</a></div><div class="ttdeci">virtual size_t list_size(size_t list_no) const =0</div><div class="ttdoc">get the size of a list </div></div>
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<div class="ttc" id="structfaiss_1_1ScopeDeleter_html"><div class="ttname"><a href="structfaiss_1_1ScopeDeleter.html">faiss::ScopeDeleter</a></div><div class="ttdef"><b>Definition:</b> <a href="FaissException_8h_source.html#l00045">FaissException.h:45</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexIVFFlat_html"><div class="ttname"><a href="structfaiss_1_1IndexIVFFlat.html">faiss::IndexIVFFlat</a></div><div class="ttdef"><b>Definition:</b> <a href="IndexIVFFlat_8h_source.html#l00024">IndexIVFFlat.h:24</a></div></div>
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<div class="ttc" id="structfaiss_1_1IVFSearchParameters_html"><div class="ttname"><a href="structfaiss_1_1IVFSearchParameters.html">faiss::IVFSearchParameters</a></div><div class="ttdef"><b>Definition:</b> <a href="IndexIVF_8h_source.html#l00060">IndexIVF.h:60</a></div></div>
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<div class="ttc" id="structfaiss_1_1InvertedLists_html_a21b52cdb0601cd225bd7924932310876"><div class="ttname"><a href="structfaiss_1_1InvertedLists.html#a21b52cdb0601cd225bd7924932310876">faiss::InvertedLists::get_single_id</a></div><div class="ttdeci">virtual idx_t get_single_id(size_t list_no, size_t offset) const </div><div class="ttdef"><b>Definition:</b> <a href="InvertedLists_8cpp_source.html#l00035">InvertedLists.cpp:35</a></div></div>
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<div class="ttc" id="structfaiss_1_1Index_html_a2a002388d2c081c2dbab8508dcefe73d"><div class="ttname"><a href="structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d">faiss::Index::d</a></div><div class="ttdeci">int d</div><div class="ttdoc">vector dimension </div><div class="ttdef"><b>Definition:</b> <a href="Index_8h_source.html#l00066">Index.h:66</a></div></div>
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<div class="ttc" id="structfaiss_1_1Index_html_ad3f0d3071f987baabbdd3da4500c87ea"><div class="ttname"><a href="structfaiss_1_1Index.html#ad3f0d3071f987baabbdd3da4500c87ea">faiss::Index::idx_t</a></div><div class="ttdeci">long idx_t</div><div class="ttdoc">all indices are this type </div><div class="ttdef"><b>Definition:</b> <a href="Index_8h_source.html#l00062">Index.h:62</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexIVFFlatDedup_html_ae1d5f41f4987f4e02938738436f082bf"><div class="ttname"><a href="structfaiss_1_1IndexIVFFlatDedup.html#ae1d5f41f4987f4e02938738436f082bf">faiss::IndexIVFFlatDedup::add_with_ids</a></div><div class="ttdeci">void add_with_ids(idx_t n, const float *x, const long *xids) override</div><div class="ttdoc">implemented for all IndexIVF* classes </div><div class="ttdef"><b>Definition:</b> <a href="IndexIVFFlat_8cpp_source.html#l00270">IndexIVFFlat.cpp:270</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="structfaiss_1_1InvertedLists_html_afc2760bed7c210f2fad9b03109f561ee"><div class="ttname"><a href="structfaiss_1_1InvertedLists.html#afc2760bed7c210f2fad9b03109f561ee">faiss::InvertedLists::get_single_code</a></div><div class="ttdeci">virtual const uint8_t * get_single_code(size_t list_no, size_t offset) const </div><div class="ttdef"><b>Definition:</b> <a href="InvertedLists_8cpp_source.html#l00052">InvertedLists.cpp:52</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexIVFFlatDedup_html_a88f84494a02e8ceab79982bcbcab4fa5"><div class="ttname"><a href="structfaiss_1_1IndexIVFFlatDedup.html#a88f84494a02e8ceab79982bcbcab4fa5">faiss::IndexIVFFlatDedup::search_preassigned</a></div><div class="ttdeci">void search_preassigned(idx_t n, const float *x, idx_t k, const idx_t *assign, const float *centroid_dis, float *distances, idx_t *labels, bool store_pairs, const IVFSearchParameters *params=nullptr) const override</div><div class="ttdef"><b>Definition:</b> <a href="IndexIVFFlat_8cpp_source.html#l00326">IndexIVFFlat.cpp:326</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexIVFFlat_html_a5f7356766632d3ce2838f285aa6b8e76"><div class="ttname"><a href="structfaiss_1_1IndexIVFFlat.html#a5f7356766632d3ce2838f285aa6b8e76">faiss::IndexIVFFlat::add_with_ids</a></div><div class="ttdeci">void add_with_ids(idx_t n, const float *x, const long *xids) override</div><div class="ttdoc">implemented for all IndexIVF* classes </div><div class="ttdef"><b>Definition:</b> <a href="IndexIVFFlat_8cpp_source.html#l00036">IndexIVFFlat.cpp:36</a></div></div>
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<div class="ttc" id="namespacefaiss_html_abefd45801bab63d2eb71005ad7a51d32"><div class="ttname"><a href="namespacefaiss.html#abefd45801bab63d2eb71005ad7a51d32">faiss::hash_bytes</a></div><div class="ttdeci">uint64_t hash_bytes(const uint8_t *bytes, long n)</div><div class="ttdef"><b>Definition:</b> <a href="utils_8cpp_source.html#l01584">utils.cpp:1584</a></div></div>
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<div class="ttc" id="structfaiss_1_1InvertedLists_html_acd3e36cc06fc49e02773e403a84dba95"><div class="ttname"><a href="structfaiss_1_1InvertedLists.html#acd3e36cc06fc49e02773e403a84dba95">faiss::InvertedLists::add_entry</a></div><div class="ttdeci">virtual size_t add_entry(size_t list_no, idx_t theid, const uint8_t *code)</div><div class="ttdoc">add one entry to an inverted list </div><div class="ttdef"><b>Definition:</b> <a href="InvertedLists_8cpp_source.html#l00059">InvertedLists.cpp:59</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_1IndexIVFFlat_html_a1267faf361fc3831ddafe7abc51f0ba2"><div class="ttname"><a href="structfaiss_1_1IndexIVFFlat.html#a1267faf361fc3831ddafe7abc51f0ba2">faiss::IndexIVFFlat::reconstruct_from_offset</a></div><div class="ttdeci">void reconstruct_from_offset(long list_no, long offset, float *recons) const override</div><div class="ttdef"><b>Definition:</b> <a href="IndexIVFFlat_8cpp_source.html#l00226">IndexIVFFlat.cpp:226</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexIVFFlat_html_a2adc0b0002c32ddc01aec4ab96dd659f"><div class="ttname"><a href="structfaiss_1_1IndexIVFFlat.html#a2adc0b0002c32ddc01aec4ab96dd659f">faiss::IndexIVFFlat::update_vectors</a></div><div class="ttdeci">virtual void update_vectors(int nv, idx_t *idx, const float *v)</div><div class="ttdef"><b>Definition:</b> <a href="IndexIVFFlat_8cpp_source.html#l00190">IndexIVFFlat.cpp:190</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexIVFFlatDedup_html_acb4f1350039546f5001c5fc36ac0fb2d"><div class="ttname"><a href="structfaiss_1_1IndexIVFFlatDedup.html#acb4f1350039546f5001c5fc36ac0fb2d">faiss::IndexIVFFlatDedup::range_search</a></div><div class="ttdeci">void range_search(idx_t n, const float *x, float radius, RangeSearchResult *result) const override</div><div class="ttdoc">not implemented </div><div class="ttdef"><b>Definition:</b> <a href="IndexIVFFlat_8cpp_source.html#l00456">IndexIVFFlat.cpp:456</a></div></div>
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<div class="ttc" id="structfaiss_1_1InvertedListScanner_html"><div class="ttname"><a href="structfaiss_1_1InvertedListScanner.html">faiss::InvertedListScanner</a></div><div class="ttdef"><b>Definition:</b> <a href="IndexIVF_8h_source.html#l00272">IndexIVF.h:272</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexIVFFlatDedup_html_a0782b04472858d993ad4c0ffc81b1844"><div class="ttname"><a href="structfaiss_1_1IndexIVFFlatDedup.html#a0782b04472858d993ad4c0ffc81b1844">faiss::IndexIVFFlatDedup::update_vectors</a></div><div class="ttdeci">void update_vectors(int nv, idx_t *idx, const float *v) override</div><div class="ttdoc">not implemented </div><div class="ttdef"><b>Definition:</b> <a href="IndexIVFFlat_8cpp_source.html#l00465">IndexIVFFlat.cpp:465</a></div></div>
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<div class="ttc" id="structfaiss_1_1RangeSearchResult_html"><div class="ttname"><a href="structfaiss_1_1RangeSearchResult.html">faiss::RangeSearchResult</a></div><div class="ttdef"><b>Definition:</b> <a href="AuxIndexStructures_8h_source.html#l00031">AuxIndexStructures.h:31</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexIVF_html_aa0e8fc5e04cbd8e0dde61f98bc7dd0bc"><div class="ttname"><a href="structfaiss_1_1IndexIVF.html#aa0e8fc5e04cbd8e0dde61f98bc7dd0bc">faiss::IndexIVF::invlists</a></div><div class="ttdeci">InvertedLists * invlists</div><div class="ttdoc">Acess to the actual data. </div><div class="ttdef"><b>Definition:</b> <a href="IndexIVF_8h_source.html#l00092">IndexIVF.h:92</a></div></div>
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<div class="ttc" id="structfaiss_1_1Index_html"><div class="ttname"><a href="structfaiss_1_1Index.html">faiss::Index</a></div><div class="ttdef"><b>Definition:</b> <a href="Index_8h_source.html#l00061">Index.h:61</a></div></div>
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<div class="ttc" id="structfaiss_1_1Level1Quantizer_html_a3cf99e2ee92b8558a066f821efab95d5"><div class="ttname"><a href="structfaiss_1_1Level1Quantizer.html#a3cf99e2ee92b8558a066f821efab95d5">faiss::Level1Quantizer::quantizer</a></div><div class="ttdeci">Index * quantizer</div><div class="ttdoc">quantizer that maps vectors to inverted lists </div><div class="ttdef"><b>Definition:</b> <a href="IndexIVF_8h_source.html#l00032">IndexIVF.h:32</a></div></div>
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<div class="ttc" id="structfaiss_1_1Index_html_a6e92732617c4dbe364e7678dd8773a7f"><div class="ttname"><a href="structfaiss_1_1Index.html#a6e92732617c4dbe364e7678dd8773a7f">faiss::Index::is_trained</a></div><div class="ttdeci">bool is_trained</div><div class="ttdoc">set if the Index does not require training, or if training is done already </div><div class="ttdef"><b>Definition:</b> <a href="Index_8h_source.html#l00071">Index.h:71</a></div></div>
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<div class="ttc" id="structfaiss_1_1InvertedLists_1_1ScopedIds_html"><div class="ttname"><a href="structfaiss_1_1InvertedLists_1_1ScopedIds.html">faiss::InvertedLists::ScopedIds</a></div><div class="ttdef"><b>Definition:</b> <a href="InvertedLists_8h_source.html#l00136">InvertedLists.h:136</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexIVF_html_aedd0c14b5654295b291638ec7f9f9517"><div class="ttname"><a href="structfaiss_1_1IndexIVF.html#aedd0c14b5654295b291638ec7f9f9517">faiss::IndexIVF::maintain_direct_map</a></div><div class="ttdeci">bool maintain_direct_map</div><div class="ttdoc">map for direct access to the elements. Enables reconstruct(). </div><div class="ttdef"><b>Definition:</b> <a href="IndexIVF_8h_source.html#l00109">IndexIVF.h:109</a></div></div>
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<div class="ttc" id="structfaiss_1_1InvertedLists_1_1ScopedCodes_html"><div class="ttname"><a href="structfaiss_1_1InvertedLists_1_1ScopedCodes.html">faiss::InvertedLists::ScopedCodes</a></div><div class="ttdef"><b>Definition:</b> <a href="InvertedLists_8h_source.html#l00156">InvertedLists.h:156</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexIVFFlatDedup_html_aae53833bb1e4041358cd4e5407d6a296"><div class="ttname"><a href="structfaiss_1_1IndexIVFFlatDedup.html#aae53833bb1e4041358cd4e5407d6a296">faiss::IndexIVFFlatDedup::remove_ids</a></div><div class="ttdeci">long remove_ids(const IDSelector &sel) override</div><div class="ttdoc">Dataset manipulation functions. </div><div class="ttdef"><b>Definition:</b> <a href="IndexIVFFlat_8cpp_source.html#l00381">IndexIVFFlat.cpp:381</a></div></div>
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<div class="ttc" id="structfaiss_1_1Level1Quantizer_html_a1c4fc9d874d9492ee0ea27a5be388fa7"><div class="ttname"><a href="structfaiss_1_1Level1Quantizer.html#a1c4fc9d874d9492ee0ea27a5be388fa7">faiss::Level1Quantizer::nlist</a></div><div class="ttdeci">size_t nlist</div><div class="ttdoc">number of possible key values </div><div class="ttdef"><b>Definition:</b> <a href="IndexIVF_8h_source.html#l00033">IndexIVF.h:33</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexIVF_html_a46d1aeddb60643c5b3f096147c3e028f"><div class="ttname"><a href="structfaiss_1_1IndexIVF.html#a46d1aeddb60643c5b3f096147c3e028f">faiss::IndexIVF::code_size</a></div><div class="ttdeci">size_t code_size</div><div class="ttdoc">code size per vector in bytes </div><div class="ttdef"><b>Definition:</b> <a href="IndexIVF_8h_source.html#l00095">IndexIVF.h:95</a></div></div>
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<div class="ttc" id="namespacefaiss_html_afd12191c638da74760ff397cf319752c"><div class="ttname"><a href="namespacefaiss.html#afd12191c638da74760ff397cf319752c">faiss::MetricType</a></div><div class="ttdeci">MetricType</div><div class="ttdoc">Some algorithms support both an inner product version and a L2 search version. </div><div class="ttdef"><b>Definition:</b> <a href="Index_8h_source.html#l00044">Index.h:44</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexIVFFlat_html_a05cbcc239916559b29b1eb1943b00440"><div class="ttname"><a href="structfaiss_1_1IndexIVFFlat.html#a05cbcc239916559b29b1eb1943b00440">faiss::IndexIVFFlat::get_InvertedListScanner</a></div><div class="ttdeci">InvertedListScanner * get_InvertedListScanner(bool store_pairs) const override</div><div class="ttdoc">get a scanner for this index (store_pairs means ignore labels) </div><div class="ttdef"><b>Definition:</b> <a href="IndexIVFFlat_8cpp_source.html#l00166">IndexIVFFlat.cpp:166</a></div></div>
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<div class="ttc" id="structfaiss_1_1CMin_html"><div class="ttname"><a href="structfaiss_1_1CMin.html">faiss::CMin</a></div><div class="ttdef"><b>Definition:</b> <a href="Heap_8h_source.html#l00052">Heap.h:52</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexIVFFlat_html_aea729c3d8c70bdd93f8e413e834851a4"><div class="ttname"><a href="structfaiss_1_1IndexIVFFlat.html#aea729c3d8c70bdd93f8e413e834851a4">faiss::IndexIVFFlat::add_core</a></div><div class="ttdeci">virtual void add_core(idx_t n, const float *x, const long *xids, const long *precomputed_idx)</div><div class="ttdoc">same as add_with_ids, with precomputed coarse quantizer </div><div class="ttdef"><b>Definition:</b> <a href="IndexIVFFlat_8cpp_source.html#l00041">IndexIVFFlat.cpp:41</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexIVFFlatDedup_html_a1ff220494d504dd806e5daf290ec0e7a"><div class="ttname"><a href="structfaiss_1_1IndexIVFFlatDedup.html#a1ff220494d504dd806e5daf290ec0e7a">faiss::IndexIVFFlatDedup::instances</a></div><div class="ttdeci">std::unordered_multimap< idx_t, idx_t > instances</div><div class="ttdef"><b>Definition:</b> <a href="IndexIVFFlat_8h_source.html#l00067">IndexIVFFlat.h:67</a></div></div>
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