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<div class="title">GpuAutoTune.cpp</div> </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span>&#160;<span class="comment">/**</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span>&#160;<span class="comment"> * Copyright (c) 2015-present, Facebook, Inc.</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span>&#160;<span class="comment"> * All rights reserved.</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span>&#160;<span class="comment"> * This source code is licensed under the CC-by-NC license found in the</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span>&#160;<span class="comment"> * LICENSE file in the root directory of this source tree.</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span>&#160;<span class="comment"> */</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span>&#160;</div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span>&#160;<span class="preprocessor">#include &quot;GpuAutoTune.h&quot;</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span>&#160;</div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span>&#160;</div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span>&#160;<span class="preprocessor">#include &quot;GpuIndex.h&quot;</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span>&#160;<span class="preprocessor">#include &quot;../FaissAssert.h&quot;</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span>&#160;<span class="preprocessor">#include &quot;../index_io.h&quot;</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span>&#160;<span class="preprocessor">#include &quot;../IndexFlat.h&quot;</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160;<span class="preprocessor">#include &quot;../IndexIVF.h&quot;</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160;<span class="preprocessor">#include &quot;../IndexIVFPQ.h&quot;</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160;<span class="preprocessor">#include &quot;../VectorTransform.h&quot;</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>&#160;<span class="preprocessor">#include &quot;../MetaIndexes.h&quot;</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>&#160;<span class="preprocessor">#include &quot;GpuIndexFlat.h&quot;</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>&#160;<span class="preprocessor">#include &quot;GpuIndexIVFFlat.h&quot;</span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160;<span class="preprocessor">#include &quot;GpuIndexIVFPQ.h&quot;</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160;<span class="preprocessor">#include &quot;IndexProxy.h&quot;</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160;</div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160;<span class="keyword">namespace </span>faiss { <span class="keyword">namespace </span>gpu {</div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>&#160;</div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>&#160;<span class="comment">/**********************************************************</span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160;<span class="comment"> * Cloning from/to GPU</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>&#160;<span class="comment"> **********************************************************/</span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>&#160;</div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>&#160;</div>
<div class="line"><a name="l00033"></a><span class="lineno"><a class="line" href="structfaiss_1_1gpu_1_1ToCPUCloner.html"> 33</a></span>&#160;<span class="keyword">struct </span><a class="code" href="structfaiss_1_1gpu_1_1ToCPUCloner.html">ToCPUCloner</a>: <a class="code" href="structfaiss_1_1Cloner.html">Cloner</a> {</div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>&#160;</div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>&#160; <a class="code" href="structfaiss_1_1Index.html">Index</a> *clone_Index(<span class="keyword">const</span> <a class="code" href="structfaiss_1_1Index.html">Index</a> *index)<span class="keyword"> override </span>{</div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>&#160; <span class="keywordflow">if</span>(<span class="keyword">auto</span> ifl = dynamic_cast&lt;const GpuIndexFlat *&gt;(index)) {</div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>&#160; <a class="code" href="structfaiss_1_1IndexFlat.html">IndexFlat</a> *res = <span class="keyword">new</span> <a class="code" href="structfaiss_1_1IndexFlat.html">IndexFlat</a>();</div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>&#160; ifl-&gt;copyTo(res);</div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>&#160; <span class="keywordflow">return</span> res;</div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>&#160; } <span class="keywordflow">else</span> <span class="keywordflow">if</span>(<span class="keyword">auto</span> ifl = dynamic_cast&lt;const GpuIndexIVFFlat *&gt;(index)) {</div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>&#160; <a class="code" href="structfaiss_1_1IndexIVFFlat.html">IndexIVFFlat</a> *res = <span class="keyword">new</span> <a class="code" href="structfaiss_1_1IndexIVFFlat.html">IndexIVFFlat</a>();</div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>&#160; ifl-&gt;copyTo(res);</div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>&#160; <span class="keywordflow">return</span> res;</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160; } <span class="keywordflow">else</span> <span class="keywordflow">if</span>(<span class="keyword">auto</span> ipq = dynamic_cast&lt;const GpuIndexIVFPQ *&gt;(index)) {</div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>&#160; <a class="code" href="structfaiss_1_1IndexIVFPQ.html">IndexIVFPQ</a> *res = <span class="keyword">new</span> <a class="code" href="structfaiss_1_1IndexIVFPQ.html">IndexIVFPQ</a>();</div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160; ipq-&gt;copyTo(res);</div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160; <span class="keywordflow">return</span> res;</div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>&#160; <span class="keywordflow">return</span> Cloner::clone_Index(index);</div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>&#160; }</div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>&#160; }</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160;};</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160;</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160;<a class="code" href="structfaiss_1_1Index.html">faiss::Index</a> * index_gpu_to_cpu(<span class="keyword">const</span> <a class="code" href="structfaiss_1_1Index.html">faiss::Index</a> *gpu_index)</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160;{</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160; <a class="code" href="structfaiss_1_1gpu_1_1ToCPUCloner.html">ToCPUCloner</a> cl;</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160; <span class="keywordflow">return</span> cl.clone_Index(gpu_index);</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160;}</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160;</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160;</div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>&#160;</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160;GpuClonerOptions::GpuClonerOptions():</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160; indicesOptions(INDICES_64_BIT),</div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>&#160; useFloat16CoarseQuantizer(false),</div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>&#160; useFloat16(false),</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>&#160; usePrecomputed(true),</div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>&#160; reserveVecs(0),</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>&#160; verbose(0)</div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>&#160;{}</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>&#160;</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>&#160;</div>
<div class="line"><a name="l00072"></a><span class="lineno"><a class="line" href="structfaiss_1_1gpu_1_1ToGpuCloner.html"> 72</a></span>&#160;<span class="keyword">struct </span><a class="code" href="structfaiss_1_1gpu_1_1ToGpuCloner.html">ToGpuCloner</a>: <a class="code" href="structfaiss_1_1Cloner.html">faiss::Cloner</a>, <a class="code" href="structfaiss_1_1gpu_1_1GpuClonerOptions.html">GpuClonerOptions</a> {</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>&#160; <a class="code" href="classfaiss_1_1gpu_1_1GpuResources.html">GpuResources</a> *resources;</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>&#160; <span class="keywordtype">int</span> device;</div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>&#160;</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>&#160; <a class="code" href="structfaiss_1_1gpu_1_1ToGpuCloner.html">ToGpuCloner</a>(<a class="code" href="classfaiss_1_1gpu_1_1GpuResources.html">GpuResources</a> *resources, <span class="keywordtype">int</span> device, <span class="keyword">const</span> <a class="code" href="structfaiss_1_1gpu_1_1GpuClonerOptions.html">GpuClonerOptions</a> &amp;options):</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>&#160; <a class="code" href="structfaiss_1_1gpu_1_1GpuClonerOptions.html">GpuClonerOptions</a>(options), resources(resources), device(device)</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>&#160; {}</div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>&#160;</div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>&#160; <a class="code" href="structfaiss_1_1Index.html">Index</a> *clone_Index(<span class="keyword">const</span> <a class="code" href="structfaiss_1_1Index.html">Index</a> *index)<span class="keyword"> override </span>{</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>&#160; <span class="keywordflow">if</span>(<span class="keyword">auto</span> ifl = dynamic_cast&lt;const IndexFlat *&gt;(index)) {</div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>&#160; <span class="keywordflow">return</span> <span class="keyword">new</span> <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexFlat.html">GpuIndexFlat</a>(resources, device, <a class="code" href="structfaiss_1_1gpu_1_1GpuClonerOptions.html#ac7cc57d6091d6a79ea6020bf8d1fbe27">useFloat16</a>, ifl);</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>&#160; } <span class="keywordflow">else</span> <span class="keywordflow">if</span>(<span class="keyword">auto</span> ifl = dynamic_cast&lt;const faiss::IndexIVFFlat *&gt;(index)) {</div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>&#160; <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVFFlat.html">GpuIndexIVFFlat</a> *res =</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>&#160; <span class="keyword">new</span> <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVFFlat.html">GpuIndexIVFFlat</a>(resources,</div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>&#160; device,</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>&#160; <a class="code" href="structfaiss_1_1gpu_1_1GpuClonerOptions.html#a85f3093908b6e9a503c24bb226b17b1b">useFloat16CoarseQuantizer</a>,</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>&#160; <a class="code" href="structfaiss_1_1gpu_1_1GpuClonerOptions.html#ac7cc57d6091d6a79ea6020bf8d1fbe27">useFloat16</a>,</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>&#160; ifl-&gt;d,</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>&#160; ifl-&gt;nlist,</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>&#160; <a class="code" href="structfaiss_1_1gpu_1_1GpuClonerOptions.html#ad960ac51b7cc607fcb1a1b07efc32a9e">indicesOptions</a>,</div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>&#160; ifl-&gt;metric_type);</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>&#160; <span class="keywordflow">if</span>(<a class="code" href="structfaiss_1_1gpu_1_1GpuClonerOptions.html#ab60dd87e51af59373a48d73852573f04">reserveVecs</a> &gt; 0 &amp;&amp; ifl-&gt;ntotal == 0)</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>&#160; res-&gt;<a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVFFlat.html#a329d7734f1285788d10c1fbf1f88d72f">reserveMemory</a>(<a class="code" href="structfaiss_1_1gpu_1_1GpuClonerOptions.html#ab60dd87e51af59373a48d73852573f04">reserveVecs</a>);</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>&#160; res-&gt;<a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVFFlat.html#a96fd66c31c7e46b1549ed61d1b3476f3">copyFrom</a>(ifl);</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>&#160; <span class="keywordflow">return</span> res;</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>&#160; } <span class="keywordflow">else</span> <span class="keywordflow">if</span>(<span class="keyword">auto</span> ipq = dynamic_cast&lt;const faiss::IndexIVFPQ *&gt;(index)) {</div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>&#160; <span class="keywordflow">if</span>(verbose)</div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>&#160; printf(<span class="stringliteral">&quot; IndexIVFPQ size %ld -&gt; GpuIndexIVFPQ indicesOptions=%d &quot;</span></div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>&#160; <span class="stringliteral">&quot;usePrecomputed=%d useFloat16=%d reserveVecs=%ld\n&quot;</span>,</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>&#160; ipq-&gt;ntotal, <a class="code" href="structfaiss_1_1gpu_1_1GpuClonerOptions.html#ad960ac51b7cc607fcb1a1b07efc32a9e">indicesOptions</a>, <a class="code" href="structfaiss_1_1gpu_1_1GpuClonerOptions.html#abc9c607f2dfc9f23942a523fb49c63fe">usePrecomputed</a>,</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>&#160; <a class="code" href="structfaiss_1_1gpu_1_1GpuClonerOptions.html#ac7cc57d6091d6a79ea6020bf8d1fbe27">useFloat16</a>, <a class="code" href="structfaiss_1_1gpu_1_1GpuClonerOptions.html#ab60dd87e51af59373a48d73852573f04">reserveVecs</a>);</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>&#160; <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html">GpuIndexIVFPQ</a> *res = <span class="keyword">new</span> <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html">GpuIndexIVFPQ</a>(</div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>&#160; resources, device, <a class="code" href="structfaiss_1_1gpu_1_1GpuClonerOptions.html#ad960ac51b7cc607fcb1a1b07efc32a9e">indicesOptions</a>, <a class="code" href="structfaiss_1_1gpu_1_1GpuClonerOptions.html#ac7cc57d6091d6a79ea6020bf8d1fbe27">useFloat16</a>,</div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>&#160; ipq);</div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>&#160; res-&gt;<a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#afda2894c0ce520e0d3d06eeca5ed5f0c">setPrecomputedCodes</a>(<a class="code" href="structfaiss_1_1gpu_1_1GpuClonerOptions.html#abc9c607f2dfc9f23942a523fb49c63fe">usePrecomputed</a>);</div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>&#160; <span class="keywordflow">if</span>(<a class="code" href="structfaiss_1_1gpu_1_1GpuClonerOptions.html#ab60dd87e51af59373a48d73852573f04">reserveVecs</a> &gt; 0 &amp;&amp; ipq-&gt;ntotal == 0)</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>&#160; res-&gt;<a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#a4e7d62e21f7e23fa4e94c69131389eea">reserveMemory</a>(<a class="code" href="structfaiss_1_1gpu_1_1GpuClonerOptions.html#ab60dd87e51af59373a48d73852573f04">reserveVecs</a>);</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>&#160; <span class="keywordflow">return</span> res;</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>&#160; <span class="keywordflow">return</span> Cloner::clone_Index(index);</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>&#160; }</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>&#160; }</div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>&#160;</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>&#160;};</div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>&#160;</div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>&#160;</div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>&#160;<a class="code" href="structfaiss_1_1Index.html">faiss::Index</a> * index_cpu_to_gpu(</div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>&#160; <a class="code" href="classfaiss_1_1gpu_1_1GpuResources.html">GpuResources</a>* resources, <span class="keywordtype">int</span> device,</div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>&#160; <span class="keyword">const</span> <a class="code" href="structfaiss_1_1Index.html">faiss::Index</a> *index,</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>&#160; <span class="keyword">const</span> <a class="code" href="structfaiss_1_1gpu_1_1GpuClonerOptions.html">GpuClonerOptions</a> *options)</div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>&#160;{</div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>&#160; <a class="code" href="structfaiss_1_1gpu_1_1GpuClonerOptions.html">GpuClonerOptions</a> defaults;</div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>&#160; <a class="code" href="structfaiss_1_1gpu_1_1ToGpuCloner.html">ToGpuCloner</a> cl(resources, device, options ? *options : defaults);</div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>&#160; <span class="keywordflow">return</span> cl.clone_Index(index);</div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>&#160;}</div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>&#160;</div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>&#160;GpuMultipleClonerOptions::GpuMultipleClonerOptions(): shard(false)</div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>&#160;{}</div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>&#160;</div>
<div class="line"><a name="l00131"></a><span class="lineno"><a class="line" href="structfaiss_1_1gpu_1_1ToGpuClonerMultiple.html"> 131</a></span>&#160;<span class="keyword">struct </span><a class="code" href="structfaiss_1_1gpu_1_1ToGpuClonerMultiple.html">ToGpuClonerMultiple</a>: <a class="code" href="structfaiss_1_1Cloner.html">faiss::Cloner</a>, <a class="code" href="structfaiss_1_1gpu_1_1GpuMultipleClonerOptions.html">GpuMultipleClonerOptions</a> {</div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>&#160; std::vector&lt;ToGpuCloner&gt; sub_cloners;</div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>&#160;</div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>&#160; <a class="code" href="structfaiss_1_1gpu_1_1ToGpuClonerMultiple.html">ToGpuClonerMultiple</a>(std::vector&lt;GpuResources *&gt; &amp; resources,</div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>&#160; std::vector&lt;int&gt;&amp; devices,</div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>&#160; <span class="keyword">const</span> <a class="code" href="structfaiss_1_1gpu_1_1GpuMultipleClonerOptions.html">GpuMultipleClonerOptions</a> &amp;options):</div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>&#160; <a class="code" href="structfaiss_1_1gpu_1_1GpuMultipleClonerOptions.html">GpuMultipleClonerOptions</a>(options)</div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>&#160; {</div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>&#160; FAISS_ASSERT(resources.size() == devices.size());</div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>&#160; <span class="keywordflow">for</span>(<span class="keywordtype">int</span> i = 0; i &lt; resources.size(); i++) {</div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>&#160; sub_cloners.push_back(<a class="code" href="structfaiss_1_1gpu_1_1ToGpuCloner.html">ToGpuCloner</a>(</div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>&#160; resources[i], devices[i], options));</div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>&#160; }</div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>&#160; }</div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>&#160;</div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>&#160;</div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>&#160; <a class="code" href="structfaiss_1_1gpu_1_1ToGpuClonerMultiple.html">ToGpuClonerMultiple</a>(<span class="keyword">const</span> std::vector&lt;ToGpuCloner&gt; &amp; sub_cloners,</div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>&#160; <span class="keyword">const</span> <a class="code" href="structfaiss_1_1gpu_1_1GpuMultipleClonerOptions.html">GpuMultipleClonerOptions</a> &amp;options):</div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>&#160; <a class="code" href="structfaiss_1_1gpu_1_1GpuMultipleClonerOptions.html">GpuMultipleClonerOptions</a>(options),</div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>&#160; sub_cloners(sub_cloners)</div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>&#160; {}</div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>&#160;</div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>&#160;</div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>&#160; <a class="code" href="structfaiss_1_1Index.html">Index</a> *clone_Index(<span class="keyword">const</span> <a class="code" href="structfaiss_1_1Index.html">Index</a> *index)<span class="keyword"> override </span>{</div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>&#160; <span class="keywordtype">long</span> n = sub_cloners.size();</div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>&#160;</div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>&#160; <span class="keywordflow">if</span> (n == 1)</div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>&#160; <span class="keywordflow">return</span> sub_cloners[0].clone_Index(index);</div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>&#160;</div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>&#160; <span class="keywordflow">if</span>(dynamic_cast&lt;const IndexFlat *&gt;(index) ||</div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>&#160; dynamic_cast&lt;const faiss::IndexIVFFlat *&gt;(index) ||</div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>&#160; dynamic_cast&lt;const faiss::IndexIVFPQ *&gt;(index)) {</div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>&#160; <span class="keywordflow">if</span>(!<a class="code" href="structfaiss_1_1gpu_1_1GpuMultipleClonerOptions.html#a7c5bd7a840f6641d5d68699f4416d79d">shard</a>) {</div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>&#160; <a class="code" href="classfaiss_1_1gpu_1_1IndexProxy.html">IndexProxy</a> * res = <span class="keyword">new</span> <a class="code" href="classfaiss_1_1gpu_1_1IndexProxy.html">IndexProxy</a>();</div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>&#160; <span class="keywordflow">for</span>(<span class="keyword">auto</span> &amp; sub_cloner: sub_cloners) {</div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>&#160; res-&gt;<a class="code" href="classfaiss_1_1gpu_1_1IndexProxy.html#af9bb81e75f8d5471094e4d4776a56f63">addIndex</a>(sub_cloner.clone_Index(index));</div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>&#160; }</div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>&#160; res-&gt;own_fields = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>&#160; <span class="keywordflow">return</span> res;</div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>&#160; <span class="keyword">auto</span> index_ivfpq =</div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>&#160; <span class="keyword">dynamic_cast&lt;</span><span class="keyword">const </span><a class="code" href="structfaiss_1_1IndexIVFPQ.html">faiss::IndexIVFPQ</a> *<span class="keyword">&gt;</span>(index);</div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>&#160; <span class="keyword">auto</span> index_ivfflat =</div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>&#160; <span class="keyword">dynamic_cast&lt;</span><span class="keyword">const </span><a class="code" href="structfaiss_1_1IndexIVFFlat.html">faiss::IndexIVFFlat</a> *<span class="keyword">&gt;</span>(index);</div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>&#160; FAISS_ASSERT (index_ivfpq || index_ivfflat ||</div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>&#160; !<span class="stringliteral">&quot;IndexShards implemented only for &quot;</span></div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>&#160; <span class="stringliteral">&quot;IndexIVFFlat or IndexIVFPQ&quot;</span>);</div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>&#160; std::vector&lt;faiss::Index*&gt; shards(n);</div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>&#160;</div>
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>&#160; <span class="keywordflow">for</span>(<span class="keywordtype">long</span> i = 0; i &lt; n; i++) {</div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>&#160; <span class="comment">// make a shallow copy</span></div>
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>&#160; <span class="keywordtype">long</span> i0 = i * index-&gt;<a class="code" href="structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd">ntotal</a> / n;</div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>&#160; <span class="keywordtype">long</span> i1 = (i + 1) * index-&gt;<a class="code" href="structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd">ntotal</a> / n;</div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>&#160; <span class="keywordflow">if</span>(verbose)</div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>&#160; printf(<span class="stringliteral">&quot;IndexShards shard %ld indices %ld:%ld\n&quot;</span>,</div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>&#160; i, i0, i1);</div>
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>&#160;</div>
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>&#160; <span class="keywordflow">if</span>(<a class="code" href="structfaiss_1_1gpu_1_1GpuClonerOptions.html#ab60dd87e51af59373a48d73852573f04">reserveVecs</a>)</div>
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>&#160; sub_cloners[i].reserveVecs =</div>
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>&#160; (<a class="code" href="structfaiss_1_1gpu_1_1GpuClonerOptions.html#ab60dd87e51af59373a48d73852573f04">reserveVecs</a> + n - 1) / n;</div>
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>&#160;</div>
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>&#160; <span class="keywordflow">if</span> (index_ivfpq) {</div>
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>&#160; <a class="code" href="structfaiss_1_1IndexIVFPQ.html">faiss::IndexIVFPQ</a> idx2(</div>
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>&#160; index_ivfpq-&gt;quantizer, index_ivfpq-&gt;d,</div>
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>&#160; index_ivfpq-&gt;nlist, index_ivfpq-&gt;code_size,</div>
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>&#160; index_ivfpq-&gt;pq.nbits);</div>
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>&#160; idx2.<a class="code" href="structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16">pq</a> = index_ivfpq-&gt;pq;</div>
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>&#160; idx2.<a class="code" href="structfaiss_1_1IndexIVFPQ.html#a1c66ff073c18a1edbe8444c24d870583">use_precomputed_table</a> = 0;</div>
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>&#160; idx2.<a class="code" href="structfaiss_1_1Index.html#a6e92732617c4dbe364e7678dd8773a7f">is_trained</a> = index-&gt;<a class="code" href="structfaiss_1_1Index.html#a6e92732617c4dbe364e7678dd8773a7f">is_trained</a>;</div>
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>&#160; index_ivfpq-&gt;copy_subset_to(idx2, 0, i0, i1);</div>
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>&#160; shards[i] = sub_cloners[i].clone_Index(&amp;idx2);</div>
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>&#160; } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (index_ivfflat) {</div>
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>&#160; <a class="code" href="structfaiss_1_1IndexIVFFlat.html">faiss::IndexIVFFlat</a> idx2(</div>
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>&#160; index_ivfflat-&gt;quantizer, index-&gt;<a class="code" href="structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d">d</a>,</div>
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>&#160; index_ivfflat-&gt;nlist, index_ivfflat-&gt;metric_type);</div>
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>&#160; index_ivfflat-&gt;copy_subset_to(idx2, 0, i0, i1);</div>
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>&#160; shards[i] = sub_cloners[i].clone_Index(&amp;idx2);</div>
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>&#160; }</div>
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>&#160; }</div>
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>&#160; <a class="code" href="structfaiss_1_1IndexShards.html">faiss::IndexShards</a> *res =</div>
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>&#160; <span class="keyword">new</span> <a class="code" href="structfaiss_1_1IndexShards.html">faiss::IndexShards</a>(index-&gt;<a class="code" href="structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d">d</a>, <span class="keyword">true</span>, <span class="keyword">false</span>);</div>
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>&#160;</div>
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; n; i++) {</div>
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>&#160; res-&gt;add_shard(shards[i]);</div>
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>&#160; }</div>
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>&#160; res-&gt;own_fields = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>&#160; assert(index-&gt;<a class="code" href="structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd">ntotal</a> == res-&gt;<a class="code" href="structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd">ntotal</a>);</div>
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>&#160; <span class="keywordflow">return</span> res;</div>
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>&#160; }</div>
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>&#160; } <span class="keywordflow">else</span> <span class="keywordflow">if</span>(<span class="keyword">auto</span> miq = dynamic_cast&lt;const MultiIndexQuantizer *&gt;(index)) {</div>
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>&#160; <span class="keywordflow">if</span> (verbose) {</div>
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>&#160; printf(<span class="stringliteral">&quot;cloning MultiIndexQuantizer: &quot;</span></div>
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span>&#160; <span class="stringliteral">&quot;will be valid only for search k=1\n&quot;</span>);</div>
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>&#160; }</div>
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>&#160; <span class="keyword">const</span> <a class="code" href="structfaiss_1_1ProductQuantizer.html">ProductQuantizer</a> &amp; pq = miq-&gt;pq;</div>
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span>&#160; <a class="code" href="structfaiss_1_1IndexSplitVectors.html">IndexSplitVectors</a> *splitv = <span class="keyword">new</span> <a class="code" href="structfaiss_1_1IndexSplitVectors.html">IndexSplitVectors</a>(pq.<a class="code" href="structfaiss_1_1ProductQuantizer.html#a567cd512438f9e3404d9339a232d7695">d</a>, <span class="keyword">true</span>);</div>
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>&#160; splitv-&gt;own_fields = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>&#160;</div>
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> m = 0; m &lt; pq.<a class="code" href="structfaiss_1_1ProductQuantizer.html#a83600e328893ce5f41fe459f5a3acf41">M</a>; m++) {</div>
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span>&#160; <span class="comment">// which GPU(s) will be assigned to this sub-quantizer</span></div>
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>&#160;</div>
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>&#160; <span class="keywordtype">long</span> i0 = m * n / pq.<a class="code" href="structfaiss_1_1ProductQuantizer.html#a83600e328893ce5f41fe459f5a3acf41">M</a>;</div>
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>&#160; <span class="keywordtype">long</span> i1 = pq.<a class="code" href="structfaiss_1_1ProductQuantizer.html#a83600e328893ce5f41fe459f5a3acf41">M</a> &lt;= n ? (m + 1) * n / pq.<a class="code" href="structfaiss_1_1ProductQuantizer.html#a83600e328893ce5f41fe459f5a3acf41">M</a> : i0 + 1;</div>
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>&#160; std::vector&lt;ToGpuCloner&gt; sub_cloners_2;</div>
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>&#160; sub_cloners_2.insert(</div>
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>&#160; sub_cloners_2.begin(), sub_cloners.begin() + i0,</div>
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>&#160; sub_cloners.begin() + i1);</div>
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>&#160; <a class="code" href="structfaiss_1_1gpu_1_1ToGpuClonerMultiple.html">ToGpuClonerMultiple</a> cm(sub_cloners_2, *<span class="keyword">this</span>);</div>
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>&#160; <a class="code" href="structfaiss_1_1IndexFlatL2.html">IndexFlatL2</a> idxc (pq.<a class="code" href="structfaiss_1_1ProductQuantizer.html#a467b451ca203544e42c250e4be65b983">dsub</a>);</div>
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>&#160; idxc.<a class="code" href="structfaiss_1_1IndexFlat.html#a406f028c702edec72477eacc5733f59c">add</a> (pq.<a class="code" href="structfaiss_1_1ProductQuantizer.html#a0feee45e4151547b7a0444c14bad398f">ksub</a>, pq.<a class="code" href="structfaiss_1_1ProductQuantizer.html#aab1109a29ba0544358e274d727b23cae">centroids</a>.data() + m * pq.<a class="code" href="structfaiss_1_1ProductQuantizer.html#a567cd512438f9e3404d9339a232d7695">d</a> * pq.<a class="code" href="structfaiss_1_1ProductQuantizer.html#a0feee45e4151547b7a0444c14bad398f">ksub</a>);</div>
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>&#160; <a class="code" href="structfaiss_1_1Index.html">Index</a> *idx2 = cm.clone_Index(&amp;idxc);</div>
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>&#160; splitv-&gt;add_sub_index(idx2);</div>
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>&#160; }</div>
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>&#160; <span class="keywordflow">return</span> splitv;</div>
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>&#160; <span class="keywordflow">return</span> Cloner::clone_Index(index);</div>
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>&#160; }</div>
<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>&#160; }</div>
<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>&#160;</div>
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>&#160;</div>
<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>&#160;};</div>
<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>&#160;</div>
<div class="line"><a name="l00253"></a><span class="lineno"> 253</span>&#160;</div>
<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>&#160;</div>
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>&#160;<a class="code" href="structfaiss_1_1Index.html">faiss::Index</a> * index_cpu_to_gpu_multiple(</div>
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>&#160; std::vector&lt;GpuResources*&gt; &amp; resources,</div>
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>&#160; std::vector&lt;int&gt; &amp;devices,</div>
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>&#160; <span class="keyword">const</span> <a class="code" href="structfaiss_1_1Index.html">faiss::Index</a> *index,</div>
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span>&#160; <span class="keyword">const</span> <a class="code" href="structfaiss_1_1gpu_1_1GpuMultipleClonerOptions.html">GpuMultipleClonerOptions</a> *options)</div>
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span>&#160;{</div>
<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>&#160; <a class="code" href="structfaiss_1_1gpu_1_1GpuMultipleClonerOptions.html">GpuMultipleClonerOptions</a> defaults;</div>
<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>&#160; <a class="code" href="structfaiss_1_1gpu_1_1ToGpuClonerMultiple.html">ToGpuClonerMultiple</a> cl(resources, devices, options ? *options : defaults);</div>
<div class="line"><a name="l00263"></a><span class="lineno"> 263</span>&#160; <span class="keywordflow">return</span> cl.clone_Index(index);</div>
<div class="line"><a name="l00264"></a><span class="lineno"> 264</span>&#160;}</div>
<div class="line"><a name="l00265"></a><span class="lineno"> 265</span>&#160;</div>
<div class="line"><a name="l00266"></a><span class="lineno"> 266</span>&#160;</div>
<div class="line"><a name="l00267"></a><span class="lineno"> 267</span>&#160;</div>
<div class="line"><a name="l00268"></a><span class="lineno"> 268</span>&#160;<span class="comment">/**********************************************************</span></div>
<div class="line"><a name="l00269"></a><span class="lineno"> 269</span>&#160;<span class="comment"> * Parameters to auto-tune on GpuIndex&#39;es</span></div>
<div class="line"><a name="l00270"></a><span class="lineno"> 270</span>&#160;<span class="comment"> **********************************************************/</span></div>
<div class="line"><a name="l00271"></a><span class="lineno"> 271</span>&#160;</div>
<div class="line"><a name="l00272"></a><span class="lineno"> 272</span>&#160;<span class="preprocessor">#define DC(classname) auto ix = dynamic_cast&lt;const classname *&gt;(index)</span></div>
<div class="line"><a name="l00273"></a><span class="lineno"> 273</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00274"></a><span class="lineno"> 274</span>&#160;</div>
<div class="line"><a name="l00275"></a><span class="lineno"><a class="line" href="structfaiss_1_1gpu_1_1GpuParameterSpace.html#ab2bf33a6f1579c3d42f656ded1df3398"> 275</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="structfaiss_1_1gpu_1_1GpuParameterSpace.html#ab2bf33a6f1579c3d42f656ded1df3398">GpuParameterSpace::initialize</a> (<span class="keyword">const</span> <a class="code" href="structfaiss_1_1Index.html">Index</a> * index)</div>
<div class="line"><a name="l00276"></a><span class="lineno"> 276</span>&#160;{</div>
<div class="line"><a name="l00277"></a><span class="lineno"> 277</span>&#160; <span class="keywordflow">if</span> (DC (<a class="code" href="structfaiss_1_1IndexPreTransform.html">IndexPreTransform</a>)) {</div>
<div class="line"><a name="l00278"></a><span class="lineno"> 278</span>&#160; index = ix-&gt;index;</div>
<div class="line"><a name="l00279"></a><span class="lineno"> 279</span>&#160; }</div>
<div class="line"><a name="l00280"></a><span class="lineno"> 280</span>&#160; <span class="keywordflow">if</span> (DC (<a class="code" href="classfaiss_1_1gpu_1_1IndexProxy.html">IndexProxy</a>)) {</div>
<div class="line"><a name="l00281"></a><span class="lineno"> 281</span>&#160; <span class="keywordflow">if</span> (ix-&gt;count() == 0) <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00282"></a><span class="lineno"> 282</span>&#160; index = ix-&gt;at(0);</div>
<div class="line"><a name="l00283"></a><span class="lineno"> 283</span>&#160; }</div>
<div class="line"><a name="l00284"></a><span class="lineno"> 284</span>&#160; <span class="keywordflow">if</span> (DC (<a class="code" href="structfaiss_1_1IndexShards.html">faiss::IndexShards</a>)) {</div>
<div class="line"><a name="l00285"></a><span class="lineno"> 285</span>&#160; <span class="keywordflow">if</span> (ix-&gt;shard_indexes.size() == 0) <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00286"></a><span class="lineno"> 286</span>&#160; index = ix-&gt;shard_indexes[0];</div>
<div class="line"><a name="l00287"></a><span class="lineno"> 287</span>&#160; }</div>
<div class="line"><a name="l00288"></a><span class="lineno"> 288</span>&#160; <span class="keywordflow">if</span> (DC (<a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVF.html">GpuIndexIVF</a>)) {</div>
<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>&#160; <a class="code" href="structfaiss_1_1ParameterRange.html">ParameterRange</a> &amp; pr = <a class="code" href="structfaiss_1_1ParameterSpace.html#aeaa27a715fe3fceef5da18d894976833">add_range</a>(<span class="stringliteral">&quot;nprobe&quot;</span>);</div>
<div class="line"><a name="l00290"></a><span class="lineno"> 290</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; 12; i++) {</div>
<div class="line"><a name="l00291"></a><span class="lineno"> 291</span>&#160; <span class="keywordtype">size_t</span> nprobe = 1 &lt;&lt; i;</div>
<div class="line"><a name="l00292"></a><span class="lineno"> 292</span>&#160; <span class="keywordflow">if</span> (nprobe &gt;= ix-&gt;getNumLists() ||</div>
<div class="line"><a name="l00293"></a><span class="lineno"> 293</span>&#160; nprobe &gt; 1024) <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00294"></a><span class="lineno"> 294</span>&#160; pr.values.push_back (nprobe);</div>
<div class="line"><a name="l00295"></a><span class="lineno"> 295</span>&#160; }</div>
<div class="line"><a name="l00296"></a><span class="lineno"> 296</span>&#160; }</div>
<div class="line"><a name="l00297"></a><span class="lineno"> 297</span>&#160; <span class="comment">// not sure we should call the parent initializer</span></div>
<div class="line"><a name="l00298"></a><span class="lineno"> 298</span>&#160;}</div>
<div class="line"><a name="l00299"></a><span class="lineno"> 299</span>&#160;</div>
<div class="line"><a name="l00300"></a><span class="lineno"> 300</span>&#160;</div>
<div class="line"><a name="l00301"></a><span class="lineno"> 301</span>&#160;</div>
<div class="line"><a name="l00302"></a><span class="lineno"> 302</span>&#160;<span class="preprocessor">#undef DC</span></div>
<div class="line"><a name="l00303"></a><span class="lineno"> 303</span>&#160;<span class="preprocessor"></span><span class="comment">// non-const version</span></div>
<div class="line"><a name="l00304"></a><span class="lineno"> 304</span>&#160;<span class="preprocessor">#define DC(classname) auto *ix = dynamic_cast&lt;classname *&gt;(index)</span></div>
<div class="line"><a name="l00305"></a><span class="lineno"> 305</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00306"></a><span class="lineno"> 306</span>&#160;</div>
<div class="line"><a name="l00307"></a><span class="lineno"> 307</span>&#160;</div>
<div class="line"><a name="l00308"></a><span class="lineno"><a class="line" href="structfaiss_1_1gpu_1_1GpuParameterSpace.html#a1820826bb47a51ec9f000118be9c83b2"> 308</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="structfaiss_1_1gpu_1_1GpuParameterSpace.html#a1820826bb47a51ec9f000118be9c83b2">GpuParameterSpace::set_index_parameter</a> (</div>
<div class="line"><a name="l00309"></a><span class="lineno"> 309</span>&#160; <a class="code" href="structfaiss_1_1Index.html">Index</a> * index, <span class="keyword">const</span> std::string &amp; name, <span class="keywordtype">double</span> val)<span class="keyword"> const</span></div>
<div class="line"><a name="l00310"></a><span class="lineno"> 310</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00311"></a><span class="lineno"> 311</span>&#160; <span class="keywordflow">if</span> (DC (<a class="code" href="structfaiss_1_1IndexPreTransform.html">IndexPreTransform</a>)) {</div>
<div class="line"><a name="l00312"></a><span class="lineno"> 312</span>&#160; index = ix-&gt;index;</div>
<div class="line"><a name="l00313"></a><span class="lineno"> 313</span>&#160; }</div>
<div class="line"><a name="l00314"></a><span class="lineno"> 314</span>&#160; <span class="keywordflow">if</span> (DC (<a class="code" href="classfaiss_1_1gpu_1_1IndexProxy.html">IndexProxy</a>)) {</div>
<div class="line"><a name="l00315"></a><span class="lineno"> 315</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; ix-&gt;count(); i++)</div>
<div class="line"><a name="l00316"></a><span class="lineno"> 316</span>&#160; <a class="code" href="structfaiss_1_1gpu_1_1GpuParameterSpace.html#a1820826bb47a51ec9f000118be9c83b2">set_index_parameter</a> (ix-&gt;at(i), name, val);</div>
<div class="line"><a name="l00317"></a><span class="lineno"> 317</span>&#160; <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00318"></a><span class="lineno"> 318</span>&#160; }</div>
<div class="line"><a name="l00319"></a><span class="lineno"> 319</span>&#160; <span class="keywordflow">if</span> (DC (<a class="code" href="structfaiss_1_1IndexShards.html">faiss::IndexShards</a>)) {</div>
<div class="line"><a name="l00320"></a><span class="lineno"> 320</span>&#160; <span class="keywordflow">for</span> (<span class="keyword">auto</span> sub_index : ix-&gt;shard_indexes)</div>
<div class="line"><a name="l00321"></a><span class="lineno"> 321</span>&#160; <a class="code" href="structfaiss_1_1gpu_1_1GpuParameterSpace.html#a1820826bb47a51ec9f000118be9c83b2">set_index_parameter</a> (sub_index, name, val);</div>
<div class="line"><a name="l00322"></a><span class="lineno"> 322</span>&#160; <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00323"></a><span class="lineno"> 323</span>&#160; }</div>
<div class="line"><a name="l00324"></a><span class="lineno"> 324</span>&#160; <span class="keywordflow">if</span> (name == <span class="stringliteral">&quot;nprobe&quot;</span>) {</div>
<div class="line"><a name="l00325"></a><span class="lineno"> 325</span>&#160; DC (<a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVF.html">GpuIndexIVF</a>);</div>
<div class="line"><a name="l00326"></a><span class="lineno"> 326</span>&#160; FAISS_ASSERT(ix);</div>
<div class="line"><a name="l00327"></a><span class="lineno"> 327</span>&#160; ix-&gt;setNumProbes (<span class="keywordtype">int</span> (val));</div>
<div class="line"><a name="l00328"></a><span class="lineno"> 328</span>&#160; <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00329"></a><span class="lineno"> 329</span>&#160; }</div>
<div class="line"><a name="l00330"></a><span class="lineno"> 330</span>&#160; FAISS_ASSERT (!<span class="stringliteral">&quot;unknown parameter&quot;</span>);</div>
<div class="line"><a name="l00331"></a><span class="lineno"> 331</span>&#160;}</div>
<div class="line"><a name="l00332"></a><span class="lineno"> 332</span>&#160;</div>
<div class="line"><a name="l00333"></a><span class="lineno"> 333</span>&#160;</div>
<div class="line"><a name="l00334"></a><span class="lineno"> 334</span>&#160;</div>
<div class="line"><a name="l00335"></a><span class="lineno"> 335</span>&#160;</div>
<div class="line"><a name="l00336"></a><span class="lineno"> 336</span>&#160;} } <span class="comment">// namespace</span></div>
<div class="ttc" id="structfaiss_1_1Cloner_html"><div class="ttname"><a href="structfaiss_1_1Cloner.html">faiss::Cloner</a></div><div class="ttdef"><b>Definition:</b> <a href="index__io_8h_source.html#l00052">index_io.h:52</a></div></div>
<div class="ttc" id="structfaiss_1_1IndexFlat_html"><div class="ttname"><a href="structfaiss_1_1IndexFlat.html">faiss::IndexFlat</a></div><div class="ttdef"><b>Definition:</b> <a href="IndexFlat_8h_source.html#l00024">IndexFlat.h:24</a></div></div>
<div class="ttc" id="structfaiss_1_1gpu_1_1GpuMultipleClonerOptions_html_a7c5bd7a840f6641d5d68699f4416d79d"><div class="ttname"><a href="structfaiss_1_1gpu_1_1GpuMultipleClonerOptions.html#a7c5bd7a840f6641d5d68699f4416d79d">faiss::gpu::GpuMultipleClonerOptions::shard</a></div><div class="ttdeci">bool shard</div><div class="ttdoc">shard rather than copying to each GPU </div><div class="ttdef"><b>Definition:</b> <a href="GpuAutoTune_8h_source.html#l00055">GpuAutoTune.h:55</a></div></div>
<div class="ttc" id="structfaiss_1_1gpu_1_1GpuParameterSpace_html_ab2bf33a6f1579c3d42f656ded1df3398"><div class="ttname"><a href="structfaiss_1_1gpu_1_1GpuParameterSpace.html#ab2bf33a6f1579c3d42f656ded1df3398">faiss::gpu::GpuParameterSpace::initialize</a></div><div class="ttdeci">void initialize(const faiss::Index *index) override</div><div class="ttdoc">initialize with reasonable parameters for the index </div><div class="ttdef"><b>Definition:</b> <a href="GpuAutoTune_8cpp_source.html#l00275">GpuAutoTune.cpp:275</a></div></div>
<div class="ttc" id="structfaiss_1_1gpu_1_1GpuClonerOptions_html"><div class="ttname"><a href="structfaiss_1_1gpu_1_1GpuClonerOptions.html">faiss::gpu::GpuClonerOptions</a></div><div class="ttdoc">set some options on how to copy to GPU </div><div class="ttdef"><b>Definition:</b> <a href="GpuAutoTune_8h_source.html#l00031">GpuAutoTune.h:31</a></div></div>
<div class="ttc" id="structfaiss_1_1IndexFlatL2_html"><div class="ttname"><a href="structfaiss_1_1IndexFlatL2.html">faiss::IndexFlatL2</a></div><div class="ttdef"><b>Definition:</b> <a href="IndexFlat_8h_source.html#l00081">IndexFlat.h:81</a></div></div>
<div class="ttc" id="classfaiss_1_1gpu_1_1GpuIndexIVFFlat_html_a96fd66c31c7e46b1549ed61d1b3476f3"><div class="ttname"><a href="classfaiss_1_1gpu_1_1GpuIndexIVFFlat.html#a96fd66c31c7e46b1549ed61d1b3476f3">faiss::gpu::GpuIndexIVFFlat::copyFrom</a></div><div class="ttdeci">void copyFrom(const faiss::IndexIVFFlat *index)</div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexIVFFlat_8cu_source.html#l00103">GpuIndexIVFFlat.cu:103</a></div></div>
<div class="ttc" id="structfaiss_1_1ProductQuantizer_html_a467b451ca203544e42c250e4be65b983"><div class="ttname"><a href="structfaiss_1_1ProductQuantizer.html#a467b451ca203544e42c250e4be65b983">faiss::ProductQuantizer::dsub</a></div><div class="ttdeci">size_t dsub</div><div class="ttdoc">dimensionality of each subvector </div><div class="ttdef"><b>Definition:</b> <a href="ProductQuantizer_8h_source.html#l00033">ProductQuantizer.h:33</a></div></div>
<div class="ttc" id="structfaiss_1_1gpu_1_1GpuClonerOptions_html_abc9c607f2dfc9f23942a523fb49c63fe"><div class="ttname"><a href="structfaiss_1_1gpu_1_1GpuClonerOptions.html#abc9c607f2dfc9f23942a523fb49c63fe">faiss::gpu::GpuClonerOptions::usePrecomputed</a></div><div class="ttdeci">bool usePrecomputed</div><div class="ttdoc">use precomputed tables? </div><div class="ttdef"><b>Definition:</b> <a href="GpuAutoTune_8h_source.html#l00040">GpuAutoTune.h:40</a></div></div>
<div class="ttc" id="structfaiss_1_1IndexPreTransform_html"><div class="ttname"><a href="structfaiss_1_1IndexPreTransform.html">faiss::IndexPreTransform</a></div><div class="ttdef"><b>Definition:</b> <a href="VectorTransform_8h_source.html#l00238">VectorTransform.h:238</a></div></div>
<div class="ttc" id="classfaiss_1_1gpu_1_1GpuResources_html"><div class="ttname"><a href="classfaiss_1_1gpu_1_1GpuResources.html">faiss::gpu::GpuResources</a></div><div class="ttdef"><b>Definition:</b> <a href="GpuResources_8h_source.html#l00024">GpuResources.h:24</a></div></div>
<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="IndexIVF_8h_source.html#l00113">IndexIVF.h:113</a></div></div>
<div class="ttc" id="structfaiss_1_1gpu_1_1GpuMultipleClonerOptions_html"><div class="ttname"><a href="structfaiss_1_1gpu_1_1GpuMultipleClonerOptions.html">faiss::gpu::GpuMultipleClonerOptions</a></div><div class="ttdef"><b>Definition:</b> <a href="GpuAutoTune_8h_source.html#l00054">GpuAutoTune.h:54</a></div></div>
<div class="ttc" id="structfaiss_1_1ParameterSpace_html_aeaa27a715fe3fceef5da18d894976833"><div class="ttname"><a href="structfaiss_1_1ParameterSpace.html#aeaa27a715fe3fceef5da18d894976833">faiss::ParameterSpace::add_range</a></div><div class="ttdeci">ParameterRange &amp; add_range(const char *name)</div><div class="ttdoc">add a new parameter </div><div class="ttdef"><b>Definition:</b> <a href="AutoTune_8cpp_source.html#l00321">AutoTune.cpp:321</a></div></div>
<div class="ttc" id="structfaiss_1_1IndexSplitVectors_html"><div class="ttname"><a href="structfaiss_1_1IndexSplitVectors.html">faiss::IndexSplitVectors</a></div><div class="ttdef"><b>Definition:</b> <a href="MetaIndexes_8h_source.html#l00109">MetaIndexes.h:109</a></div></div>
<div class="ttc" id="classfaiss_1_1gpu_1_1GpuIndexIVF_html"><div class="ttname"><a href="classfaiss_1_1gpu_1_1GpuIndexIVF.html">faiss::gpu::GpuIndexIVF</a></div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexIVF_8h_source.html#l00025">GpuIndexIVF.h:25</a></div></div>
<div class="ttc" id="classfaiss_1_1gpu_1_1IndexProxy_html"><div class="ttname"><a href="classfaiss_1_1gpu_1_1IndexProxy.html">faiss::gpu::IndexProxy</a></div><div class="ttdef"><b>Definition:</b> <a href="IndexProxy_8h_source.html#l00025">IndexProxy.h:25</a></div></div>
<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>
<div class="ttc" id="structfaiss_1_1gpu_1_1GpuParameterSpace_html_a1820826bb47a51ec9f000118be9c83b2"><div class="ttname"><a href="structfaiss_1_1gpu_1_1GpuParameterSpace.html#a1820826bb47a51ec9f000118be9c83b2">faiss::gpu::GpuParameterSpace::set_index_parameter</a></div><div class="ttdeci">void set_index_parameter(faiss::Index *index, const std::string &amp;name, double val) const override</div><div class="ttdoc">set a combination of parameters on an index </div><div class="ttdef"><b>Definition:</b> <a href="GpuAutoTune_8cpp_source.html#l00308">GpuAutoTune.cpp:308</a></div></div>
<div class="ttc" id="structfaiss_1_1IndexIVFPQ_html"><div class="ttname"><a href="structfaiss_1_1IndexIVFPQ.html">faiss::IndexIVFPQ</a></div><div class="ttdef"><b>Definition:</b> <a href="IndexIVFPQ_8h_source.html#l00030">IndexIVFPQ.h:30</a></div></div>
<div class="ttc" id="classfaiss_1_1gpu_1_1GpuIndexIVFPQ_html_a4e7d62e21f7e23fa4e94c69131389eea"><div class="ttname"><a href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#a4e7d62e21f7e23fa4e94c69131389eea">faiss::gpu::GpuIndexIVFPQ::reserveMemory</a></div><div class="ttdeci">void reserveMemory(size_t numVecs)</div><div class="ttdoc">Reserve GPU memory in our inverted lists for this number of vectors. </div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexIVFPQ_8cu_source.html#l00197">GpuIndexIVFPQ.cu:197</a></div></div>
<div class="ttc" id="classfaiss_1_1gpu_1_1GpuIndexIVFFlat_html_a329d7734f1285788d10c1fbf1f88d72f"><div class="ttname"><a href="classfaiss_1_1gpu_1_1GpuIndexIVFFlat.html#a329d7734f1285788d10c1fbf1f88d72f">faiss::gpu::GpuIndexIVFFlat::reserveMemory</a></div><div class="ttdeci">void reserveMemory(size_t numVecs)</div><div class="ttdoc">Reserve GPU memory in our inverted lists for this number of vectors. </div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexIVFFlat_8cu_source.html#l00095">GpuIndexIVFFlat.cu:95</a></div></div>
<div class="ttc" id="structfaiss_1_1gpu_1_1GpuClonerOptions_html_ac7cc57d6091d6a79ea6020bf8d1fbe27"><div class="ttname"><a href="structfaiss_1_1gpu_1_1GpuClonerOptions.html#ac7cc57d6091d6a79ea6020bf8d1fbe27">faiss::gpu::GpuClonerOptions::useFloat16</a></div><div class="ttdeci">bool useFloat16</div><div class="ttdef"><b>Definition:</b> <a href="GpuAutoTune_8h_source.html#l00038">GpuAutoTune.h:38</a></div></div>
<div class="ttc" id="structfaiss_1_1gpu_1_1GpuClonerOptions_html_ad960ac51b7cc607fcb1a1b07efc32a9e"><div class="ttname"><a href="structfaiss_1_1gpu_1_1GpuClonerOptions.html#ad960ac51b7cc607fcb1a1b07efc32a9e">faiss::gpu::GpuClonerOptions::indicesOptions</a></div><div class="ttdeci">IndicesOptions indicesOptions</div><div class="ttdoc">how should indices be stored on GpuIndexIVFPQ? </div><div class="ttdef"><b>Definition:</b> <a href="GpuAutoTune_8h_source.html#l00033">GpuAutoTune.h:33</a></div></div>
<div class="ttc" id="structfaiss_1_1ProductQuantizer_html_a0feee45e4151547b7a0444c14bad398f"><div class="ttname"><a href="structfaiss_1_1ProductQuantizer.html#a0feee45e4151547b7a0444c14bad398f">faiss::ProductQuantizer::ksub</a></div><div class="ttdeci">size_t ksub</div><div class="ttdoc">number of centroids for each subquantizer </div><div class="ttdef"><b>Definition:</b> <a href="ProductQuantizer_8h_source.html#l00036">ProductQuantizer.h:36</a></div></div>
<div class="ttc" id="structfaiss_1_1gpu_1_1GpuClonerOptions_html_a85f3093908b6e9a503c24bb226b17b1b"><div class="ttname"><a href="structfaiss_1_1gpu_1_1GpuClonerOptions.html#a85f3093908b6e9a503c24bb226b17b1b">faiss::gpu::GpuClonerOptions::useFloat16CoarseQuantizer</a></div><div class="ttdeci">bool useFloat16CoarseQuantizer</div><div class="ttdoc">is the coarse quantizer in float16? </div><div class="ttdef"><b>Definition:</b> <a href="GpuAutoTune_8h_source.html#l00035">GpuAutoTune.h:35</a></div></div>
<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>
<div class="ttc" id="structfaiss_1_1IndexFlat_html_a406f028c702edec72477eacc5733f59c"><div class="ttname"><a href="structfaiss_1_1IndexFlat.html#a406f028c702edec72477eacc5733f59c">faiss::IndexFlat::add</a></div><div class="ttdeci">virtual void add(idx_t n, const float *x) override</div><div class="ttdef"><b>Definition:</b> <a href="IndexFlat_8cpp_source.html#l00041">IndexFlat.cpp:41</a></div></div>
<div class="ttc" id="classfaiss_1_1gpu_1_1IndexProxy_html_af9bb81e75f8d5471094e4d4776a56f63"><div class="ttname"><a href="classfaiss_1_1gpu_1_1IndexProxy.html#af9bb81e75f8d5471094e4d4776a56f63">faiss::gpu::IndexProxy::addIndex</a></div><div class="ttdeci">void addIndex(faiss::Index *index)</div><div class="ttdef"><b>Definition:</b> <a href="IndexProxy_8cpp_source.html#l00033">IndexProxy.cpp:33</a></div></div>
<div class="ttc" id="structfaiss_1_1gpu_1_1ToGpuClonerMultiple_html"><div class="ttname"><a href="structfaiss_1_1gpu_1_1ToGpuClonerMultiple.html">faiss::gpu::ToGpuClonerMultiple</a></div><div class="ttdef"><b>Definition:</b> <a href="GpuAutoTune_8cpp_source.html#l00131">GpuAutoTune.cpp:131</a></div></div>
<div class="ttc" id="classfaiss_1_1gpu_1_1GpuIndexIVFPQ_html"><div class="ttname"><a href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html">faiss::gpu::GpuIndexIVFPQ</a></div><div class="ttdoc">IVFPQ index for the GPU. </div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexIVFPQ_8h_source.html#l00025">GpuIndexIVFPQ.h:25</a></div></div>
<div class="ttc" id="structfaiss_1_1IndexIVFPQ_html_a007303be116c8da65b6d058e3fc77d16"><div class="ttname"><a href="structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16">faiss::IndexIVFPQ::pq</a></div><div class="ttdeci">ProductQuantizer pq</div><div class="ttdoc">produces the codes </div><div class="ttdef"><b>Definition:</b> <a href="IndexIVFPQ_8h_source.html#l00034">IndexIVFPQ.h:34</a></div></div>
<div class="ttc" id="structfaiss_1_1ProductQuantizer_html_a83600e328893ce5f41fe459f5a3acf41"><div class="ttname"><a href="structfaiss_1_1ProductQuantizer.html#a83600e328893ce5f41fe459f5a3acf41">faiss::ProductQuantizer::M</a></div><div class="ttdeci">size_t M</div><div class="ttdoc">number of subquantizers </div><div class="ttdef"><b>Definition:</b> <a href="ProductQuantizer_8h_source.html#l00029">ProductQuantizer.h:29</a></div></div>
<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>
<div class="ttc" id="classfaiss_1_1gpu_1_1GpuIndexFlat_html"><div class="ttname"><a href="classfaiss_1_1gpu_1_1GpuIndexFlat.html">faiss::gpu::GpuIndexFlat</a></div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexFlat_8h_source.html#l00031">GpuIndexFlat.h:31</a></div></div>
<div class="ttc" id="classfaiss_1_1gpu_1_1GpuIndexIVFPQ_html_afda2894c0ce520e0d3d06eeca5ed5f0c"><div class="ttname"><a href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#afda2894c0ce520e0d3d06eeca5ed5f0c">faiss::gpu::GpuIndexIVFPQ::setPrecomputedCodes</a></div><div class="ttdeci">void setPrecomputedCodes(bool enable)</div><div class="ttdoc">Enable or disable pre-computed codes. </div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexIVFPQ_8cu_source.html#l00206">GpuIndexIVFPQ.cu:206</a></div></div>
<div class="ttc" id="structfaiss_1_1IndexShards_html"><div class="ttname"><a href="structfaiss_1_1IndexShards.html">faiss::IndexShards</a></div><div class="ttdef"><b>Definition:</b> <a href="MetaIndexes_8h_source.html#l00058">MetaIndexes.h:58</a></div></div>
<div class="ttc" id="structfaiss_1_1gpu_1_1ToGpuCloner_html"><div class="ttname"><a href="structfaiss_1_1gpu_1_1ToGpuCloner.html">faiss::gpu::ToGpuCloner</a></div><div class="ttdef"><b>Definition:</b> <a href="GpuAutoTune_8cpp_source.html#l00072">GpuAutoTune.cpp:72</a></div></div>
<div class="ttc" id="structfaiss_1_1ProductQuantizer_html"><div class="ttname"><a href="structfaiss_1_1ProductQuantizer.html">faiss::ProductQuantizer</a></div><div class="ttdef"><b>Definition:</b> <a href="ProductQuantizer_8h_source.html#l00026">ProductQuantizer.h:26</a></div></div>
<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>
<div class="ttc" id="structfaiss_1_1ParameterRange_html"><div class="ttname"><a href="structfaiss_1_1ParameterRange.html">faiss::ParameterRange</a></div><div class="ttdoc">possible values of a parameter, sorted from least to most expensive/accurate </div><div class="ttdef"><b>Definition:</b> <a href="AutoTune_8h_source.html#l00126">AutoTune.h:126</a></div></div>
<div class="ttc" id="structfaiss_1_1ProductQuantizer_html_a567cd512438f9e3404d9339a232d7695"><div class="ttname"><a href="structfaiss_1_1ProductQuantizer.html#a567cd512438f9e3404d9339a232d7695">faiss::ProductQuantizer::d</a></div><div class="ttdeci">size_t d</div><div class="ttdoc">size of the input vectors </div><div class="ttdef"><b>Definition:</b> <a href="ProductQuantizer_8h_source.html#l00028">ProductQuantizer.h:28</a></div></div>
<div class="ttc" id="structfaiss_1_1gpu_1_1ToCPUCloner_html"><div class="ttname"><a href="structfaiss_1_1gpu_1_1ToCPUCloner.html">faiss::gpu::ToCPUCloner</a></div><div class="ttdef"><b>Definition:</b> <a href="GpuAutoTune_8cpp_source.html#l00033">GpuAutoTune.cpp:33</a></div></div>
<div class="ttc" id="classfaiss_1_1gpu_1_1GpuIndexIVFFlat_html"><div class="ttname"><a href="classfaiss_1_1gpu_1_1GpuIndexIVFFlat.html">faiss::gpu::GpuIndexIVFFlat</a></div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexIVFFlat_8h_source.html#l00025">GpuIndexIVFFlat.h:25</a></div></div>
<div class="ttc" id="structfaiss_1_1gpu_1_1GpuClonerOptions_html_ab60dd87e51af59373a48d73852573f04"><div class="ttname"><a href="structfaiss_1_1gpu_1_1GpuClonerOptions.html#ab60dd87e51af59373a48d73852573f04">faiss::gpu::GpuClonerOptions::reserveVecs</a></div><div class="ttdeci">long reserveVecs</div><div class="ttdoc">reserve vectors in the invfiles? </div><div class="ttdef"><b>Definition:</b> <a href="GpuAutoTune_8h_source.html#l00042">GpuAutoTune.h:42</a></div></div>
<div class="ttc" id="structfaiss_1_1IndexIVFPQ_html_a1c66ff073c18a1edbe8444c24d870583"><div class="ttname"><a href="structfaiss_1_1IndexIVFPQ.html#a1c66ff073c18a1edbe8444c24d870583">faiss::IndexIVFPQ::use_precomputed_table</a></div><div class="ttdeci">int use_precomputed_table</div><div class="ttdoc">if by_residual, build precompute tables </div><div class="ttdef"><b>Definition:</b> <a href="IndexIVFPQ_8h_source.html#l00032">IndexIVFPQ.h:32</a></div></div>
<div class="ttc" id="structfaiss_1_1ProductQuantizer_html_aab1109a29ba0544358e274d727b23cae"><div class="ttname"><a href="structfaiss_1_1ProductQuantizer.html#aab1109a29ba0544358e274d727b23cae">faiss::ProductQuantizer::centroids</a></div><div class="ttdeci">std::vector&lt; float &gt; centroids</div><div class="ttdoc">Centroid table, size M * ksub * dsub. </div><div class="ttdef"><b>Definition:</b> <a href="ProductQuantizer_8h_source.html#l00053">ProductQuantizer.h:53</a></div></div>
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