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<li class="navelem"><a class="el" href="dir_6b3ae6988449b0834e9596fad5d75199.html">gpu</a></li> </ul>
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<div class="title">StandardGpuResources.cpp</div> </div>
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</div><!--header-->
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<div class="contents">
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment"></span></div>
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<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">/**</span></div>
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<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> * Copyright (c) 2015-present, Facebook, Inc.</span></div>
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<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * All rights reserved.</span></div>
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<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> *</span></div>
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<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * This source code is licensed under the CC-by-NC license found in the</span></div>
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<div class="line"><a name="l00007"></a><span class="lineno"> 7</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="l00008"></a><span class="lineno"> 8</span> <span class="comment"> */</span></div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> </div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment">// Copyright 2004-present Facebook. All Rights Reserved.</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 "StandardGpuResources.h"</span></div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#include "../FaissAssert.h"</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="keyword">namespace </span>faiss { <span class="keyword">namespace </span>gpu {</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="keyword">namespace </span>{</div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> </div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> constexpr <span class="keywordtype">int</span> kNumStreams = 2;</div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"></span></div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment">/// Use 18% of GPU memory for temporary space by default</span></div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment"></span>constexpr <span class="keywordtype">float</span> kDefaultTempMemFraction = 0.18f;</div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment"></span></div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment">/// Default pinned memory allocation size</span></div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="comment"></span>constexpr <span class="keywordtype">size_t</span> kDefaultPinnedMemoryAllocation = (size_t) 256 * 1024 * 1024;</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> }</div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> </div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> StandardGpuResources::StandardGpuResources() :</div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  pinnedMemAlloc_(nullptr),</div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  pinnedMemAllocSize_(0),</div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  tempMemFraction_(kDefaultTempMemFraction),</div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  tempMemSize_(0),</div>
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<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  useFraction_(true),</div>
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<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  pinnedMemSize_(kDefaultPinnedMemoryAllocation) {</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> </div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> StandardGpuResources::~StandardGpuResources() {</div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="keywordflow">for</span> (<span class="keyword">auto</span>& entry : defaultStreams_) {</div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  DeviceScope scope(entry.first);</div>
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<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> </div>
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<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  CUDA_VERIFY(cudaStreamDestroy(entry.second));</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>  <span class="keywordflow">for</span> (<span class="keyword">auto</span>& entry : alternateStreams_) {</div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  DeviceScope scope(entry.first);</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="keywordflow">for</span> (<span class="keyword">auto</span> stream : entry.second) {</div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  CUDA_VERIFY(cudaStreamDestroy(stream));</div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  }</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> </div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="keywordflow">for</span> (<span class="keyword">auto</span>& entry : asyncCopyStreams_) {</div>
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<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  DeviceScope scope(entry.first);</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>  CUDA_VERIFY(cudaStreamDestroy(entry.second));</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> </div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <span class="keywordflow">for</span> (<span class="keyword">auto</span>& entry : blasHandles_) {</div>
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<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  DeviceScope scope(entry.first);</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>  <span class="keyword">auto</span> blasStatus = cublasDestroy(entry.second);</div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  FAISS_ASSERT(blasStatus == CUBLAS_STATUS_SUCCESS);</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> </div>
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<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="keywordflow">if</span> (pinnedMemAlloc_) {</div>
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<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  CUDA_VERIFY(cudaFreeHost(pinnedMemAlloc_));</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> <span class="keywordtype">void</span></div>
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<div class="line"><a name="l00072"></a><span class="lineno"><a class="line" href="classfaiss_1_1gpu_1_1StandardGpuResources.html#a6431477a7328ac147797b3b4e3fcf651"> 72</a></span> <a class="code" href="classfaiss_1_1gpu_1_1StandardGpuResources.html#a6431477a7328ac147797b3b4e3fcf651">StandardGpuResources::noTempMemory</a>() {</div>
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<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <a class="code" href="classfaiss_1_1gpu_1_1StandardGpuResources.html#a367102e65b16bfdc7a32770a4f5854a6">setTempMemory</a>(0);</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> <span class="keywordtype">void</span></div>
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<div class="line"><a name="l00077"></a><span class="lineno"><a class="line" href="classfaiss_1_1gpu_1_1StandardGpuResources.html#a367102e65b16bfdc7a32770a4f5854a6"> 77</a></span> <a class="code" href="classfaiss_1_1gpu_1_1StandardGpuResources.html#a367102e65b16bfdc7a32770a4f5854a6">StandardGpuResources::setTempMemory</a>(<span class="keywordtype">size_t</span> size) {</div>
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<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  useFraction_ = <span class="keyword">false</span>;</div>
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<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  tempMemSize_ = size;</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="keywordtype">void</span></div>
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<div class="line"><a name="l00083"></a><span class="lineno"><a class="line" href="classfaiss_1_1gpu_1_1StandardGpuResources.html#a99ee4e66cb497873de804b9bd9042705"> 83</a></span> <a class="code" href="classfaiss_1_1gpu_1_1StandardGpuResources.html#a99ee4e66cb497873de804b9bd9042705">StandardGpuResources::setTempMemoryFraction</a>(<span class="keywordtype">float</span> fraction) {</div>
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<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  FAISS_ASSERT(fraction >= 0.0f && fraction <= 0.5f);</div>
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<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  useFraction_ = <span class="keyword">true</span>;</div>
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<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  tempMemFraction_ = fraction;</div>
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<div class="line"><a name="l00087"></a><span class="lineno"> 87</span> }</div>
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<div class="line"><a name="l00088"></a><span class="lineno"> 88</span> </div>
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<div class="line"><a name="l00089"></a><span class="lineno"> 89</span> <span class="keywordtype">void</span></div>
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<div class="line"><a name="l00090"></a><span class="lineno"><a class="line" href="classfaiss_1_1gpu_1_1StandardGpuResources.html#af9acb23ac323f85fa5dab4ed968ccd51"> 90</a></span> <a class="code" href="classfaiss_1_1gpu_1_1StandardGpuResources.html#af9acb23ac323f85fa5dab4ed968ccd51">StandardGpuResources::setPinnedMemory</a>(<span class="keywordtype">size_t</span> size) {</div>
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<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <span class="comment">// Should not call this after devices have been initialized</span></div>
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<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  FAISS_ASSERT(defaultStreams_.size() == 0);</div>
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<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  FAISS_ASSERT(!pinnedMemAlloc_);</div>
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<div class="line"><a name="l00094"></a><span class="lineno"> 94</span> </div>
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<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  pinnedMemSize_ = size;</div>
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<div class="line"><a name="l00096"></a><span class="lineno"> 96</span> }</div>
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<div class="line"><a name="l00097"></a><span class="lineno"> 97</span> </div>
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<div class="line"><a name="l00098"></a><span class="lineno"> 98</span> <span class="keywordtype">void</span></div>
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<div class="line"><a name="l00099"></a><span class="lineno"><a class="line" href="classfaiss_1_1gpu_1_1StandardGpuResources.html#adb2729678638ed89f7b8b38470f96056"> 99</a></span> <a class="code" href="classfaiss_1_1gpu_1_1StandardGpuResources.html#adb2729678638ed89f7b8b38470f96056">StandardGpuResources::initializeForDevice</a>(<span class="keywordtype">int</span> device) {</div>
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<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <span class="comment">// Use default streams as a marker for whether or not a certain</span></div>
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<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <span class="comment">// device has been initialized</span></div>
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<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="keywordflow">if</span> (defaultStreams_.count(device) != 0) {</div>
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<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <span class="keywordflow">return</span>;</div>
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<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  }</div>
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<div class="line"><a name="l00105"></a><span class="lineno"> 105</span> </div>
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<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="comment">// If this is the first device that we're initializing, create our</span></div>
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<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="comment">// pinned memory allocation</span></div>
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<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="keywordflow">if</span> (defaultStreams_.empty() && pinnedMemSize_ > 0) {</div>
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<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  CUDA_VERIFY(cudaHostAlloc(&pinnedMemAlloc_,</div>
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<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  pinnedMemSize_,</div>
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<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  cudaHostAllocDefault));</div>
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<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  pinnedMemAllocSize_ = pinnedMemSize_;</div>
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<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  }</div>
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<div class="line"><a name="l00114"></a><span class="lineno"> 114</span> </div>
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<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  FAISS_ASSERT(device < getNumDevices());</div>
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<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <a class="code" href="classfaiss_1_1gpu_1_1DeviceScope.html">DeviceScope</a> scope(device);</div>
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<div class="line"><a name="l00117"></a><span class="lineno"> 117</span> </div>
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<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <span class="comment">// Make sure that device properties for all devices are cached</span></div>
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<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="keyword">auto</span>& prop = getDeviceProperties(device);</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>  <span class="comment">// Also check to make sure we meet our minimum compute capability (3.5)</span></div>
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<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  FAISS_ASSERT(prop.major > 3 || (prop.major == 3 && prop.minor >= 5));</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>  <span class="comment">// Create streams</span></div>
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<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  cudaStream_t defaultStream = 0;</div>
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<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  CUDA_VERIFY(cudaStreamCreateWithFlags(&defaultStream,</div>
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<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  cudaStreamNonBlocking));</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>  defaultStreams_[device] = defaultStream;</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>  cudaStream_t asyncCopyStream = 0;</div>
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<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  CUDA_VERIFY(cudaStreamCreateWithFlags(&asyncCopyStream,</div>
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<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  cudaStreamNonBlocking));</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>  asyncCopyStreams_[device] = asyncCopyStream;</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>  std::vector<cudaStream_t> deviceStreams;</div>
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<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> j = 0; j < kNumStreams; ++j) {</div>
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<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  cudaStream_t stream = 0;</div>
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<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  CUDA_VERIFY(cudaStreamCreateWithFlags(&stream,</div>
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<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  cudaStreamNonBlocking));</div>
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<div class="line"><a name="l00142"></a><span class="lineno"> 142</span> </div>
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<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  deviceStreams.push_back(stream);</div>
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<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  }</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>  alternateStreams_[device] = std::move(deviceStreams);</div>
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<div class="line"><a name="l00147"></a><span class="lineno"> 147</span> </div>
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<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <span class="comment">// Create cuBLAS handle</span></div>
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<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  cublasHandle_t blasHandle = 0;</div>
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|
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="keyword">auto</span> blasStatus = cublasCreate(&blasHandle);</div>
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<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  FAISS_ASSERT(blasStatus == CUBLAS_STATUS_SUCCESS);</div>
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<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  blasHandles_[device] = blasHandle;</div>
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<div class="line"><a name="l00153"></a><span class="lineno"> 153</span> </div>
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<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="keywordtype">size_t</span> toAlloc = 0;</div>
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|
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <span class="keywordflow">if</span> (useFraction_) {</div>
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|
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <span class="keywordtype">size_t</span> devFree = 0;</div>
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<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="keywordtype">size_t</span> devTotal = 0;</div>
|
|
<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>  CUDA_VERIFY(cudaMemGetInfo(&devFree, &devTotal));</div>
|
|
<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>  toAlloc = (size_t) (tempMemFraction_ * devTotal);</div>
|
|
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  } <span class="keywordflow">else</span> {</div>
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<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  toAlloc = tempMemSize_;</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> </div>
|
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<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  FAISS_ASSERT(memory_.count(device) == 0);</div>
|
|
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  memory_.emplace(device,</div>
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|
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  std::unique_ptr<StackDeviceMemory>(</div>
|
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<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  <span class="keyword">new</span> <a class="code" href="classfaiss_1_1gpu_1_1StackDeviceMemory.html">StackDeviceMemory</a>(device, toAlloc)));</div>
|
|
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span> }</div>
|
|
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span> </div>
|
|
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span> cublasHandle_t</div>
|
|
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span> StandardGpuResources::getBlasHandle(<span class="keywordtype">int</span> device) {</div>
|
|
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <a class="code" href="classfaiss_1_1gpu_1_1StandardGpuResources.html#adb2729678638ed89f7b8b38470f96056">initializeForDevice</a>(device);</div>
|
|
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  <span class="keywordflow">return</span> blasHandles_[device];</div>
|
|
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span> }</div>
|
|
<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> cudaStream_t</div>
|
|
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span> StandardGpuResources::getDefaultStream(<span class="keywordtype">int</span> device) {</div>
|
|
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  <a class="code" href="classfaiss_1_1gpu_1_1StandardGpuResources.html#adb2729678638ed89f7b8b38470f96056">initializeForDevice</a>(device);</div>
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<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  <span class="keywordflow">return</span> defaultStreams_[device];</div>
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|
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span> }</div>
|
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<div class="line"><a name="l00183"></a><span class="lineno"> 183</span> </div>
|
|
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span> std::vector<cudaStream_t></div>
|
|
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span> StandardGpuResources::getAlternateStreams(<span class="keywordtype">int</span> device) {</div>
|
|
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <a class="code" href="classfaiss_1_1gpu_1_1StandardGpuResources.html#adb2729678638ed89f7b8b38470f96056">initializeForDevice</a>(device);</div>
|
|
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  <span class="keywordflow">return</span> alternateStreams_[device];</div>
|
|
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span> }</div>
|
|
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span> </div>
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<div class="line"><a name="l00190"></a><span class="lineno"> 190</span> DeviceMemory& StandardGpuResources::getMemoryManager(<span class="keywordtype">int</span> device) {</div>
|
|
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  <a class="code" href="classfaiss_1_1gpu_1_1StandardGpuResources.html#adb2729678638ed89f7b8b38470f96056">initializeForDevice</a>(device);</div>
|
|
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  <span class="keywordflow">return</span> *memory_[device];</div>
|
|
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span> }</div>
|
|
<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> std::pair<void*, size_t></div>
|
|
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span> StandardGpuResources::getPinnedMemory() {</div>
|
|
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  <span class="keywordflow">return</span> std::make_pair(pinnedMemAlloc_, pinnedMemAllocSize_);</div>
|
|
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span> }</div>
|
|
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span> </div>
|
|
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span> cudaStream_t</div>
|
|
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span> StandardGpuResources::getAsyncCopyStream(<span class="keywordtype">int</span> device) {</div>
|
|
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  <a class="code" href="classfaiss_1_1gpu_1_1StandardGpuResources.html#adb2729678638ed89f7b8b38470f96056">initializeForDevice</a>(device);</div>
|
|
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  <span class="keywordflow">return</span> asyncCopyStreams_[device];</div>
|
|
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span> }</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="comment">// namespace</span></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1StandardGpuResources_html_a99ee4e66cb497873de804b9bd9042705"><div class="ttname"><a href="classfaiss_1_1gpu_1_1StandardGpuResources.html#a99ee4e66cb497873de804b9bd9042705">faiss::gpu::StandardGpuResources::setTempMemoryFraction</a></div><div class="ttdeci">void setTempMemoryFraction(float fraction)</div><div class="ttdef"><b>Definition:</b> <a href="StandardGpuResources_8cpp_source.html#l00083">StandardGpuResources.cpp:83</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1StandardGpuResources_html_a6431477a7328ac147797b3b4e3fcf651"><div class="ttname"><a href="classfaiss_1_1gpu_1_1StandardGpuResources.html#a6431477a7328ac147797b3b4e3fcf651">faiss::gpu::StandardGpuResources::noTempMemory</a></div><div class="ttdeci">void noTempMemory()</div><div class="ttdef"><b>Definition:</b> <a href="StandardGpuResources_8cpp_source.html#l00072">StandardGpuResources.cpp:72</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1StandardGpuResources_html_adb2729678638ed89f7b8b38470f96056"><div class="ttname"><a href="classfaiss_1_1gpu_1_1StandardGpuResources.html#adb2729678638ed89f7b8b38470f96056">faiss::gpu::StandardGpuResources::initializeForDevice</a></div><div class="ttdeci">void initializeForDevice(int device) override</div><div class="ttdoc">Internal system calls. </div><div class="ttdef"><b>Definition:</b> <a href="StandardGpuResources_8cpp_source.html#l00099">StandardGpuResources.cpp:99</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1StandardGpuResources_html_a367102e65b16bfdc7a32770a4f5854a6"><div class="ttname"><a href="classfaiss_1_1gpu_1_1StandardGpuResources.html#a367102e65b16bfdc7a32770a4f5854a6">faiss::gpu::StandardGpuResources::setTempMemory</a></div><div class="ttdeci">void setTempMemory(size_t size)</div><div class="ttdef"><b>Definition:</b> <a href="StandardGpuResources_8cpp_source.html#l00077">StandardGpuResources.cpp:77</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1StandardGpuResources_html_af9acb23ac323f85fa5dab4ed968ccd51"><div class="ttname"><a href="classfaiss_1_1gpu_1_1StandardGpuResources.html#af9acb23ac323f85fa5dab4ed968ccd51">faiss::gpu::StandardGpuResources::setPinnedMemory</a></div><div class="ttdeci">void setPinnedMemory(size_t size)</div><div class="ttdef"><b>Definition:</b> <a href="StandardGpuResources_8cpp_source.html#l00090">StandardGpuResources.cpp:90</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1DeviceScope_html"><div class="ttname"><a href="classfaiss_1_1gpu_1_1DeviceScope.html">faiss::gpu::DeviceScope</a></div><div class="ttdef"><b>Definition:</b> <a href="DeviceUtils_8h_source.html#l00055">DeviceUtils.h:55</a></div></div>
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<div class="ttc" id="classfaiss_1_1gpu_1_1StackDeviceMemory_html"><div class="ttname"><a href="classfaiss_1_1gpu_1_1StackDeviceMemory.html">faiss::gpu::StackDeviceMemory</a></div><div class="ttdef"><b>Definition:</b> <a href="StackDeviceMemory_8h_source.html#l00023">StackDeviceMemory.h:23</a></div></div>
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