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<li class="navelem"><a class="el" href="dir_1df44a9b705f43f2ce1efa42430a4914.html">tests</a></li> </ul>
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<div class="title">test_sliding_ivf.cpp</div> </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/**</span></div>
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<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * Copyright (c) 2015-present, Facebook, Inc.</span></div>
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<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> * All rights reserved.</span></div>
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<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> *</span></div>
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<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * This source code is licensed under the BSD+Patents license found in the</span></div>
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<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * LICENSE file in the root directory of this source tree.</span></div>
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<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> */</span></div>
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<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> </div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="preprocessor">#include <cstdio></span></div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="preprocessor">#include <cstdlib></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 <memory></span></div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#include <vector></span></div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> </div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#include <gtest/gtest.h></span></div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> </div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#include <faiss/IndexIVF.h></span></div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor">#include <faiss/AutoTune.h></span></div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#include <faiss/index_io.h></span></div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#include <faiss/IVFlib.h></span></div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> </div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="keyword">using namespace </span>faiss;</div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> </div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="keyword">typedef</span> <a class="code" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">Index::idx_t</a> idx_t;</div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> </div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> </div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment">// dimension of the vectors to index</span></div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="keywordtype">int</span> d = 32;</div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> </div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="comment">// nb of training vectors</span></div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="keywordtype">size_t</span> nt = 5000;</div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> </div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="comment">// size of the database points per window step</span></div>
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<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="keywordtype">size_t</span> nb = 1000;</div>
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<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> </div>
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<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="comment">// nb of queries</span></div>
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<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="keywordtype">size_t</span> nq = 200;</div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> </div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> </div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="keywordtype">int</span> total_size = 40;</div>
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<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="keywordtype">int</span> window_size = 10;</div>
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<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> </div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 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> </div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> </div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> std::vector<float> make_data(<span class="keywordtype">size_t</span> n)</div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> {</div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  std::vector <float> database (n * d);</div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i < n * d; i++) {</div>
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<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  database[i] = drand48();</div>
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<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  }</div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="keywordflow">return</span> database;</div>
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<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> }</div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> </div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> std::unique_ptr<Index> make_trained_index(<span class="keyword">const</span> <span class="keywordtype">char</span> *index_type)</div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> {</div>
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<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="keyword">auto</span> index = std::unique_ptr<Index>(<a class="code" href="namespacefaiss.html#a0c95ec47726f2ce3fb668dcb1f9a3317">index_factory</a>(d, index_type));</div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <span class="keyword">auto</span> xt = make_data(nt * d);</div>
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<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  index-><a class="code" href="structfaiss_1_1IndexShards.html#a36fbcc85eed9bf2ea15587f04be9ae0b">train</a>(nt, xt.data());</div>
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<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <a class="code" href="structfaiss_1_1ParameterSpace.html">ParameterSpace</a>().<a class="code" href="structfaiss_1_1ParameterSpace.html#ac630c153ffd12f9994452c92fe57dc17">set_index_parameter</a> (index.get(), <span class="stringliteral">"nprobe"</span>, 4);</div>
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<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="keywordflow">return</span> index;</div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> }</div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span> </div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span> std::vector<idx_t> search_index(<a class="code" href="structfaiss_1_1Index.html">Index</a> *index, <span class="keyword">const</span> <span class="keywordtype">float</span> *xq) {</div>
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<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="keywordtype">int</span> k = 10;</div>
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<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  std::vector<idx_t> I(k * nq);</div>
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<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  std::vector<float> D(k * nq);</div>
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<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  index-><a class="code" href="structfaiss_1_1Index.html#aced51b1ebc33c47ab3ae15ea906559a7">search</a> (nq, xq, k, D.data(), I.data());</div>
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<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="keywordflow">return</span> I;</div>
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<div class="line"><a name="l00071"></a><span class="lineno"> 71</span> }</div>
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<div class="line"><a name="l00072"></a><span class="lineno"> 72</span> </div>
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<div class="line"><a name="l00073"></a><span class="lineno"> 73</span> </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> </div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span> </div>
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<div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="comment">/*************************************************************</span></div>
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<div class="line"><a name="l00078"></a><span class="lineno"> 78</span> <span class="comment"> * Test functions for a given index type</span></div>
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<div class="line"><a name="l00079"></a><span class="lineno"> 79</span> <span class="comment"> *************************************************************/</span></div>
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<div class="line"><a name="l00080"></a><span class="lineno"> 80</span> </div>
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<div class="line"><a name="l00081"></a><span class="lineno"> 81</span> </div>
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<div class="line"><a name="l00082"></a><span class="lineno"> 82</span> <span class="comment">// make a few slices of indexes that can be merged</span></div>
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<div class="line"><a name="l00083"></a><span class="lineno"> 83</span> <span class="keywordtype">void</span> make_index_slices (<span class="keyword">const</span> <a class="code" href="structfaiss_1_1Index.html">Index</a>* trained_index,</div>
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<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  std::vector<std::unique_ptr<Index> > & sub_indexes) {</div>
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<div class="line"><a name="l00085"></a><span class="lineno"> 85</span> </div>
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<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < total_size; i++) {</div>
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<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  sub_indexes.emplace_back (clone_index (trained_index));</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>  printf (<span class="stringliteral">"preparing sub-index # %d\n"</span>, i);</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>  <a class="code" href="structfaiss_1_1Index.html">Index</a> * index = sub_indexes.back().get();</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>  <span class="keyword">auto</span> xb = make_data(nb * d);</div>
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<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  std::vector<long> ids (nb);</div>
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<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> j = 0; j < nb; j++) {</div>
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<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  ids[j] = lrand48();</div>
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<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  }</div>
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<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  index-><a class="code" href="structfaiss_1_1Index.html#aa6931dfe054b33b02c842ff75f7a0c7f">add_with_ids</a> (nb, xb.data(), ids.data());</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> </div>
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<div class="line"><a name="l00101"></a><span class="lineno"> 101</span> }</div>
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<div class="line"><a name="l00102"></a><span class="lineno"> 102</span> </div>
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<div class="line"><a name="l00103"></a><span class="lineno"> 103</span> <span class="comment">// build merged index explicitly at sliding window position i</span></div>
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<div class="line"><a name="l00104"></a><span class="lineno"> 104</span> <a class="code" href="structfaiss_1_1Index.html">Index</a> *make_merged_index(</div>
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<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="keyword">const</span> <a class="code" href="structfaiss_1_1Index.html">Index</a>* trained_index,</div>
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<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="keyword">const</span> std::vector<std::unique_ptr<Index> > & sub_indexes,</div>
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<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="keywordtype">int</span> i) {</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>  <a class="code" href="structfaiss_1_1Index.html">Index</a> * merged_index = clone_index (trained_index);</div>
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<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> j = i - window_size + 1; j <= i; j++) {</div>
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<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keywordflow">if</span> (j < 0 || j >= total_size) <span class="keywordflow">continue</span>;</div>
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<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  std::unique_ptr<Index> sub_index (</div>
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<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  clone_index (sub_indexes[j].<span class="keyword">get</span>()));</div>
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<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <a class="code" href="structfaiss_1_1IndexIVF.html">IndexIVF</a> *ivf0 = ivflib::extract_index_ivf (merged_index);</div>
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<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <a class="code" href="structfaiss_1_1IndexIVF.html">IndexIVF</a> *ivf1 = ivflib::extract_index_ivf (sub_index.get());</div>
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<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  ivf0-><a class="code" href="structfaiss_1_1IndexIVF.html#a0f22cc237c30c935df5b6560aecf8f01">merge_from</a> (*ivf1, 0);</div>
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<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  merged_index-><a class="code" href="structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd">ntotal</a> = ivf0-><a class="code" href="structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd">ntotal</a>;</div>
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<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  }</div>
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<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="keywordflow">return</span> merged_index;</div>
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<div class="line"><a name="l00120"></a><span class="lineno"> 120</span> }</div>
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<div class="line"><a name="l00121"></a><span class="lineno"> 121</span> </div>
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<div class="line"><a name="l00122"></a><span class="lineno"> 122</span> <span class="keywordtype">int</span> test_sliding_window (<span class="keyword">const</span> <span class="keywordtype">char</span> *index_key) {</div>
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<div class="line"><a name="l00123"></a><span class="lineno"> 123</span> </div>
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<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  std::unique_ptr<Index> trained_index = make_trained_index(index_key);</div>
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<div class="line"><a name="l00125"></a><span class="lineno"> 125</span> </div>
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<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <span class="comment">// make the index slices</span></div>
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<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  std::vector<std::unique_ptr<Index> > sub_indexes;</div>
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<div class="line"><a name="l00128"></a><span class="lineno"> 128</span> </div>
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<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  make_index_slices (trained_index.get(), sub_indexes);</div>
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<div class="line"><a name="l00130"></a><span class="lineno"> 130</span> </div>
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<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <span class="comment">// now slide over the windows</span></div>
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<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  std::unique_ptr<Index> index (clone_index (trained_index.get()));</div>
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<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <a class="code" href="structfaiss_1_1ivflib_1_1SlidingIndexWindow.html">ivflib::SlidingIndexWindow</a> window (index.get());</div>
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<div class="line"><a name="l00134"></a><span class="lineno"> 134</span> </div>
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<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="keyword">auto</span> xq = make_data (nq * d);</div>
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<div class="line"><a name="l00136"></a><span class="lineno"> 136</span> </div>
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<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < total_size + window_size; i++) {</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>  printf (<span class="stringliteral">"doing step %d / %d\n"</span>, i, total_size + window_size);</div>
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<div class="line"><a name="l00140"></a><span class="lineno"> 140</span> </div>
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<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <span class="comment">// update the index</span></div>
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<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  window.step (i < total_size ? sub_indexes[i].<span class="keyword">get</span>() : <span class="keyword">nullptr</span>,</div>
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<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  i >= window_size);</div>
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<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  printf (<span class="stringliteral">" current n_slice = %d\n"</span>, window.n_slice);</div>
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<div class="line"><a name="l00145"></a><span class="lineno"> 145</span> </div>
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<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="keyword">auto</span> new_res = search_index (index.get(), xq.data());</div>
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<div class="line"><a name="l00147"></a><span class="lineno"> 147</span> </div>
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<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  std::unique_ptr<Index> merged_index (</div>
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<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  make_merged_index (trained_index.get(), sub_indexes, i));</div>
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<div class="line"><a name="l00150"></a><span class="lineno"> 150</span> </div>
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<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <span class="keyword">auto</span> ref_res = search_index (merged_index.get(), xq.data ());</div>
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<div class="line"><a name="l00152"></a><span class="lineno"> 152</span> </div>
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<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  EXPECT_EQ (ref_res.size(), new_res.size());</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>  EXPECT_EQ (ref_res, new_res);</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>  <span class="keywordflow">return</span> 0;</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="keywordtype">int</span> test_sliding_invlists (<span class="keyword">const</span> <span class="keywordtype">char</span> *index_key) {</div>
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<div class="line"><a name="l00162"></a><span class="lineno"> 162</span> </div>
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<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  std::unique_ptr<Index> trained_index = make_trained_index(index_key);</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>  <span class="comment">// make the index slices</span></div>
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<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  std::vector<std::unique_ptr<Index> > sub_indexes;</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>  make_index_slices (trained_index.get(), sub_indexes);</div>
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<div class="line"><a name="l00169"></a><span class="lineno"> 169</span> </div>
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<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  <span class="comment">// now slide over the windows</span></div>
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<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  std::unique_ptr<Index> index (clone_index (trained_index.get()));</div>
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<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <a class="code" href="structfaiss_1_1IndexIVF.html">IndexIVF</a> * index_ivf = ivflib::extract_index_ivf (index.get());</div>
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<div class="line"><a name="l00173"></a><span class="lineno"> 173</span> </div>
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<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <span class="keyword">auto</span> xq = make_data (nq * 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">for</span> (<span class="keywordtype">int</span> i = 0; i < total_size + window_size; i++) {</div>
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<div class="line"><a name="l00177"></a><span class="lineno"> 177</span> </div>
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<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  printf (<span class="stringliteral">"doing step %d / %d\n"</span>, i, total_size + window_size);</div>
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<div class="line"><a name="l00179"></a><span class="lineno"> 179</span> </div>
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<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  <span class="comment">// update the index</span></div>
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<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  std::vector<const InvertedLists*> ils;</div>
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<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> j = i - window_size + 1; j <= i; j++) {</div>
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<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <span class="keywordflow">if</span> (j < 0 || j >= total_size) <span class="keywordflow">continue</span>;</div>
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|
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  ils.push_back (ivflib::extract_index_ivf (</div>
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<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  sub_indexes[j].<span class="keyword">get</span>())->invlists);</div>
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<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  }</div>
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<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  <span class="keywordflow">if</span> (ils.size() == 0) <span class="keywordflow">continue</span>;</div>
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<div class="line"><a name="l00188"></a><span class="lineno"> 188</span> </div>
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<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  <a class="code" href="structfaiss_1_1ConcatenatedInvertedLists.html">ConcatenatedInvertedLists</a> *ci =</div>
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<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  <span class="keyword">new</span> <a class="code" href="structfaiss_1_1ConcatenatedInvertedLists.html">ConcatenatedInvertedLists</a> (ils.size(), ils.data());</div>
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|
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span> </div>
|
|
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  <span class="comment">// will be deleted by the index</span></div>
|
|
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  index_ivf-><a class="code" href="structfaiss_1_1IndexIVF.html#a4eb943aeb7df30d44ad9b665452bfcf7">replace_invlists</a> (ci, <span class="keyword">true</span>);</div>
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<div class="line"><a name="l00194"></a><span class="lineno"> 194</span> </div>
|
|
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  printf (<span class="stringliteral">" nb invlists = %ld\n"</span>, ils.size());</div>
|
|
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span> </div>
|
|
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  <span class="keyword">auto</span> new_res = search_index (index.get(), xq.data());</div>
|
|
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span> </div>
|
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<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  std::unique_ptr<Index> merged_index (</div>
|
|
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  make_merged_index (trained_index.get(), sub_indexes, i));</div>
|
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<div class="line"><a name="l00201"></a><span class="lineno"> 201</span> </div>
|
|
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  <span class="keyword">auto</span> ref_res = search_index (merged_index.get(), xq.data ());</div>
|
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<div class="line"><a name="l00203"></a><span class="lineno"> 203</span> </div>
|
|
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  EXPECT_EQ (ref_res.size(), new_res.size());</div>
|
|
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span> </div>
|
|
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  <span class="keywordtype">size_t</span> ndiff = 0;</div>
|
|
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> j = 0; j < ref_res.size(); j++) {</div>
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|
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  <span class="keywordflow">if</span> (ref_res[j] != new_res[j])</div>
|
|
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  ndiff++;</div>
|
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<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  }</div>
|
|
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  printf(<span class="stringliteral">" nb differences: %ld / %ld\n"</span>,</div>
|
|
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  ndiff, ref_res.size());</div>
|
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<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  EXPECT_EQ (ref_res, new_res);</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="keywordflow">return</span> 0;</div>
|
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<div class="line"><a name="l00216"></a><span class="lineno"> 216</span> }</div>
|
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<div class="line"><a name="l00217"></a><span class="lineno"> 217</span> </div>
|
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<div class="line"><a name="l00218"></a><span class="lineno"> 218</span> </div>
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<div class="line"><a name="l00219"></a><span class="lineno"> 219</span> </div>
|
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<div class="line"><a name="l00220"></a><span class="lineno"> 220</span> </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> <span class="comment">/*************************************************************</span></div>
|
|
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span> <span class="comment"> * Test entry points</span></div>
|
|
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span> <span class="comment"> *************************************************************/</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"> 226</span> TEST(SlidingWindow, IVFFlat) {</div>
|
|
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  test_sliding_window (<span class="stringliteral">"IVF32,Flat"</span>);</div>
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<div class="line"><a name="l00228"></a><span class="lineno"> 228</span> }</div>
|
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<div class="line"><a name="l00229"></a><span class="lineno"> 229</span> </div>
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<div class="line"><a name="l00230"></a><span class="lineno"> 230</span> TEST(SlidingWindow, PCAIVFFlat) {</div>
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|
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  test_sliding_window (<span class="stringliteral">"PCA24,IVF32,Flat"</span>);</div>
|
|
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span> }</div>
|
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<div class="line"><a name="l00233"></a><span class="lineno"> 233</span> </div>
|
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<div class="line"><a name="l00234"></a><span class="lineno"> 234</span> TEST(SlidingInvlists, IVFFlat) {</div>
|
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<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  test_sliding_invlists (<span class="stringliteral">"IVF32,Flat"</span>);</div>
|
|
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span> }</div>
|
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<div class="line"><a name="l00237"></a><span class="lineno"> 237</span> </div>
|
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<div class="line"><a name="l00238"></a><span class="lineno"> 238</span> TEST(SlidingInvlists, PCAIVFFlat) {</div>
|
|
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  test_sliding_invlists (<span class="stringliteral">"PCA24,IVF32,Flat"</span>);</div>
|
|
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span> }</div>
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<div class="ttc" id="structfaiss_1_1IndexShards_html_a36fbcc85eed9bf2ea15587f04be9ae0b"><div class="ttname"><a href="structfaiss_1_1IndexShards.html#a36fbcc85eed9bf2ea15587f04be9ae0b">faiss::IndexShards::train</a></div><div class="ttdeci">void train(idx_t n, const float *x) override</div><div class="ttdef"><b>Definition:</b> <a href="MetaIndexes_8cpp_source.html#l00399">MetaIndexes.cpp:399</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexIVF_html"><div class="ttname"><a href="structfaiss_1_1IndexIVF.html">faiss::IndexIVF</a></div><div class="ttdef"><b>Definition:</b> <a href="IndexIVF_8h_source.html#l00091">IndexIVF.h:91</a></div></div>
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<div class="ttc" id="structfaiss_1_1ConcatenatedInvertedLists_html"><div class="ttname"><a href="structfaiss_1_1ConcatenatedInvertedLists.html">faiss::ConcatenatedInvertedLists</a></div><div class="ttdef"><b>Definition:</b> <a href="InvertedLists_8h_source.html#l00193">InvertedLists.h:193</a></div></div>
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<div class="ttc" id="structfaiss_1_1Index_html_aa6931dfe054b33b02c842ff75f7a0c7f"><div class="ttname"><a href="structfaiss_1_1Index.html#aa6931dfe054b33b02c842ff75f7a0c7f">faiss::Index::add_with_ids</a></div><div class="ttdeci">virtual void add_with_ids(idx_t n, const float *x, const long *xids)</div><div class="ttdef"><b>Definition:</b> <a href="Index_8cpp_source.html#l00042">Index.cpp:42</a></div></div>
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<div class="ttc" id="structfaiss_1_1Index_html_a040c6aed1f224f3ea7bf58eebc0c31a4"><div class="ttname"><a href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">faiss::Index::idx_t</a></div><div class="ttdeci">long idx_t</div><div class="ttdoc">all indices are this type </div><div class="ttdef"><b>Definition:</b> <a href="Index_8h_source.html#l00064">Index.h:64</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexIVF_html_a4eb943aeb7df30d44ad9b665452bfcf7"><div class="ttname"><a href="structfaiss_1_1IndexIVF.html#a4eb943aeb7df30d44ad9b665452bfcf7">faiss::IndexIVF::replace_invlists</a></div><div class="ttdeci">void replace_invlists(InvertedLists *il, bool own=false)</div><div class="ttdoc">replace the inverted lists, old one is deallocated if own_invlists </div><div class="ttdef"><b>Definition:</b> <a href="IndexIVF_8cpp_source.html#l00486">IndexIVF.cpp:486</a></div></div>
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<div class="ttc" id="structfaiss_1_1ivflib_1_1SlidingIndexWindow_html"><div class="ttname"><a href="structfaiss_1_1ivflib_1_1SlidingIndexWindow.html">faiss::ivflib::SlidingIndexWindow</a></div><div class="ttdef"><b>Definition:</b> <a href="IVFlib_8h_source.html#l00084">IVFlib.h:84</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_aced51b1ebc33c47ab3ae15ea906559a7"><div class="ttname"><a href="structfaiss_1_1Index.html#aced51b1ebc33c47ab3ae15ea906559a7">faiss::Index::search</a></div><div class="ttdeci">virtual void search(idx_t n, const float *x, idx_t k, float *distances, idx_t *labels) const =0</div></div>
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<div class="ttc" id="structfaiss_1_1ParameterSpace_html_ac630c153ffd12f9994452c92fe57dc17"><div class="ttname"><a href="structfaiss_1_1ParameterSpace.html#ac630c153ffd12f9994452c92fe57dc17">faiss::ParameterSpace::set_index_parameter</a></div><div class="ttdeci">virtual void set_index_parameter(Index *index, const std::string &name, double val) const </div><div class="ttdoc">set one of the parameters </div><div class="ttdef"><b>Definition:</b> <a href="AutoTune_8cpp_source.html#l00452">AutoTune.cpp:452</a></div></div>
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<div class="ttc" id="structfaiss_1_1ParameterSpace_html"><div class="ttname"><a href="structfaiss_1_1ParameterSpace.html">faiss::ParameterSpace</a></div><div class="ttdef"><b>Definition:</b> <a href="AutoTune_8h_source.html#l00132">AutoTune.h:132</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#l00062">Index.h:62</a></div></div>
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<div class="ttc" id="namespacefaiss_html_a0c95ec47726f2ce3fb668dcb1f9a3317"><div class="ttname"><a href="namespacefaiss.html#a0c95ec47726f2ce3fb668dcb1f9a3317">faiss::index_factory</a></div><div class="ttdeci">Index * index_factory(int d, const char *description_in, MetricType metric)</div><div class="ttdef"><b>Definition:</b> <a href="AutoTune_8cpp_source.html#l00722">AutoTune.cpp:722</a></div></div>
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<div class="ttc" id="structfaiss_1_1IndexIVF_html_a0f22cc237c30c935df5b6560aecf8f01"><div class="ttname"><a href="structfaiss_1_1IndexIVF.html#a0f22cc237c30c935df5b6560aecf8f01">faiss::IndexIVF::merge_from</a></div><div class="ttdeci">virtual void merge_from(IndexIVF &other, idx_t add_id)</div><div class="ttdef"><b>Definition:</b> <a href="IndexIVF_8cpp_source.html#l00472">IndexIVF.cpp:472</a></div></div>
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