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<div class="title">IndexWrapper-inl.h</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) Facebook, Inc. and its affiliates.</span></div>
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<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> *</span></div>
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<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * This source code is licensed under the MIT license found in the</span></div>
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<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * LICENSE file in the root directory of this source tree.</span></div>
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<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> */</span></div>
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<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> </div>
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<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> </div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="preprocessor">#include "../../FaissAssert.h"</span></div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> </div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="keyword">namespace </span>faiss { <span class="keyword">namespace </span>gpu {</div>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> </div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="keyword">template</span> <<span class="keyword">typename</span> GpuIndex></div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> IndexWrapper<GpuIndex>::IndexWrapper(</div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span>  <span class="keywordtype">int</span> numGpus,</div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span>  std::function<std::unique_ptr<GpuIndex>(GpuResources*, <span class="keywordtype">int</span>)> init) {</div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>  FAISS_ASSERT(numGpus <= faiss::gpu::getNumDevices());</div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < numGpus; ++i) {</div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>  <span class="keyword">auto</span> res = std::unique_ptr<faiss::gpu::StandardGpuResources>(</div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>  <span class="keyword">new</span> StandardGpuResources);</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>  subIndex.emplace_back(init(res.get(), i));</div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>  resources.emplace_back(std::move(res));</div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  }</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>  <span class="keywordflow">if</span> (numGpus > 1) {</div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  <span class="comment">// create proxy</span></div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  replicaIndex =</div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  std::unique_ptr<faiss::IndexReplicas>(<span class="keyword">new</span> <a class="code" href="classfaiss_1_1IndexReplicasTemplate.html">faiss::IndexReplicas</a>);</div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> </div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  <span class="keywordflow">for</span> (<span class="keyword">auto</span>& index : subIndex) {</div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  replicaIndex->addIndex(index.get());</div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  }</div>
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<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  }</div>
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<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> }</div>
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<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> </div>
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<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="keyword">template</span> <<span class="keyword">typename</span> GpuIndex></div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <a class="code" href="structfaiss_1_1Index.html">faiss::Index</a>*</div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> IndexWrapper<GpuIndex>::getIndex() {</div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <span class="keywordflow">if</span> ((<span class="keywordtype">bool</span>) replicaIndex) {</div>
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<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  <span class="keywordflow">return</span> replicaIndex.get();</div>
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<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  } <span class="keywordflow">else</span> {</div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  FAISS_ASSERT(!subIndex.empty());</div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <span class="keywordflow">return</span> subIndex.front().get();</div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  }</div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> }</div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> </div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="keyword">template</span> <<span class="keyword">typename</span> GpuIndex></div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="keywordtype">void</span></div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> IndexWrapper<GpuIndex>::runOnIndices(std::function<<span class="keywordtype">void</span>(GpuIndex*)> f) {</div>
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<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> </div>
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<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="keywordflow">if</span> ((<span class="keywordtype">bool</span>) replicaIndex) {</div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  replicaIndex->runOnIndex(</div>
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<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  [f](<span class="keywordtype">int</span>, <a class="code" href="structfaiss_1_1Index.html">faiss::Index</a>* index) {</div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  f(dynamic_cast<GpuIndex*>(index));</div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  });</div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  } <span class="keywordflow">else</span> {</div>
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<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  FAISS_ASSERT(!subIndex.empty());</div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  f(subIndex.front().get());</div>
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<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  }</div>
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<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> }</div>
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<div class="line"><a name="l00062"></a><span class="lineno"> 62</span> </div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="keyword">template</span> <<span class="keyword">typename</span> GpuIndex></div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="keywordtype">void</span></div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span> IndexWrapper<GpuIndex>::setNumProbes(<span class="keywordtype">int</span> nprobe) {</div>
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<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  runOnIndices([nprobe](GpuIndex* index) {</div>
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<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  index->setNumProbes(nprobe);</div>
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<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  });</div>
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<div class="line"><a name="l00069"></a><span class="lineno"> 69</span> }</div>
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<div class="line"><a name="l00070"></a><span class="lineno"> 70</span> </div>
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<div class="line"><a name="l00071"></a><span class="lineno"> 71</span> } }</div>
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<div class="ttc" id="structfaiss_1_1Index_html"><div class="ttname"><a href="structfaiss_1_1Index.html">faiss::Index</a></div><div class="ttdef"><b>Definition:</b> <a href="Index_8h_source.html#l00061">Index.h:61</a></div></div>
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<div class="ttc" id="classfaiss_1_1IndexReplicasTemplate_html"><div class="ttname"><a href="classfaiss_1_1IndexReplicasTemplate.html">faiss::IndexReplicasTemplate</a></div><div class="ttdef"><b>Definition:</b> <a href="IndexReplicas_8h_source.html#l00021">IndexReplicas.h:21</a></div></div>
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