mirror of
https://github.com/facebookresearch/faiss.git
synced 2025-06-03 21:54:02 +08:00
0df3f646fc
various bugfixes from github issues kmean with some frozen centroids GPU better tiling for large flat datasets default AVX for vector ops
167 lines
15 KiB
HTML
167 lines
15 KiB
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
|
|
<html xmlns="http://www.w3.org/1999/xhtml">
|
|
<head>
|
|
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
|
|
<meta http-equiv="X-UA-Compatible" content="IE=9"/>
|
|
<meta name="generator" content="Doxygen 1.8.5"/>
|
|
<title>Faiss: /data/users/matthijs/github_faiss/faiss/gpu/impl/Distance.cuh Source File</title>
|
|
<link href="tabs.css" rel="stylesheet" type="text/css"/>
|
|
<script type="text/javascript" src="jquery.js"></script>
|
|
<script type="text/javascript" src="dynsections.js"></script>
|
|
<link href="search/search.css" rel="stylesheet" type="text/css"/>
|
|
<script type="text/javascript" src="search/search.js"></script>
|
|
<script type="text/javascript">
|
|
$(document).ready(function() { searchBox.OnSelectItem(0); });
|
|
</script>
|
|
<link href="doxygen.css" rel="stylesheet" type="text/css" />
|
|
</head>
|
|
<body>
|
|
<div id="top"><!-- do not remove this div, it is closed by doxygen! -->
|
|
<div id="titlearea">
|
|
<table cellspacing="0" cellpadding="0">
|
|
<tbody>
|
|
<tr style="height: 56px;">
|
|
<td style="padding-left: 0.5em;">
|
|
<div id="projectname">Faiss
|
|
</div>
|
|
</td>
|
|
</tr>
|
|
</tbody>
|
|
</table>
|
|
</div>
|
|
<!-- end header part -->
|
|
<!-- Generated by Doxygen 1.8.5 -->
|
|
<script type="text/javascript">
|
|
var searchBox = new SearchBox("searchBox", "search",false,'Search');
|
|
</script>
|
|
<div id="navrow1" class="tabs">
|
|
<ul class="tablist">
|
|
<li><a href="index.html"><span>Main Page</span></a></li>
|
|
<li><a href="namespaces.html"><span>Namespaces</span></a></li>
|
|
<li><a href="annotated.html"><span>Classes</span></a></li>
|
|
<li class="current"><a href="files.html"><span>Files</span></a></li>
|
|
<li>
|
|
<div id="MSearchBox" class="MSearchBoxInactive">
|
|
<span class="left">
|
|
<img id="MSearchSelect" src="search/mag_sel.png"
|
|
onmouseover="return searchBox.OnSearchSelectShow()"
|
|
onmouseout="return searchBox.OnSearchSelectHide()"
|
|
alt=""/>
|
|
<input type="text" id="MSearchField" value="Search" accesskey="S"
|
|
onfocus="searchBox.OnSearchFieldFocus(true)"
|
|
onblur="searchBox.OnSearchFieldFocus(false)"
|
|
onkeyup="searchBox.OnSearchFieldChange(event)"/>
|
|
</span><span class="right">
|
|
<a id="MSearchClose" href="javascript:searchBox.CloseResultsWindow()"><img id="MSearchCloseImg" border="0" src="search/close.png" alt=""/></a>
|
|
</span>
|
|
</div>
|
|
</li>
|
|
</ul>
|
|
</div>
|
|
<div id="navrow2" class="tabs2">
|
|
<ul class="tablist">
|
|
<li><a href="files.html"><span>File List</span></a></li>
|
|
</ul>
|
|
</div>
|
|
<!-- window showing the filter options -->
|
|
<div id="MSearchSelectWindow"
|
|
onmouseover="return searchBox.OnSearchSelectShow()"
|
|
onmouseout="return searchBox.OnSearchSelectHide()"
|
|
onkeydown="return searchBox.OnSearchSelectKey(event)">
|
|
<a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(0)"><span class="SelectionMark"> </span>All</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(1)"><span class="SelectionMark"> </span>Classes</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(2)"><span class="SelectionMark"> </span>Namespaces</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(3)"><span class="SelectionMark"> </span>Functions</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(4)"><span class="SelectionMark"> </span>Variables</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(5)"><span class="SelectionMark"> </span>Typedefs</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(6)"><span class="SelectionMark"> </span>Enumerations</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(7)"><span class="SelectionMark"> </span>Enumerator</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(8)"><span class="SelectionMark"> </span>Friends</a></div>
|
|
|
|
<!-- iframe showing the search results (closed by default) -->
|
|
<div id="MSearchResultsWindow">
|
|
<iframe src="javascript:void(0)" frameborder="0"
|
|
name="MSearchResults" id="MSearchResults">
|
|
</iframe>
|
|
</div>
|
|
|
|
<div id="nav-path" class="navpath">
|
|
<ul>
|
|
<li class="navelem"><a class="el" href="dir_6b3ae6988449b0834e9596fad5d75199.html">gpu</a></li><li class="navelem"><a class="el" href="dir_49d1182a3b8dfb62757c53ae905481ad.html">impl</a></li> </ul>
|
|
</div>
|
|
</div><!-- top -->
|
|
<div class="header">
|
|
<div class="headertitle">
|
|
<div class="title">Distance.cuh</div> </div>
|
|
</div><!--header-->
|
|
<div class="contents">
|
|
<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/**</span></div>
|
|
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * Copyright (c) 2015-present, Facebook, Inc.</span></div>
|
|
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> * All rights reserved.</span></div>
|
|
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> *</span></div>
|
|
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * This source code is licensed under the BSD+Patents license found in the</span></div>
|
|
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * LICENSE file in the root directory of this source tree.</span></div>
|
|
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> */</span></div>
|
|
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> </div>
|
|
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">// Copyright 2004-present Facebook. All Rights Reserved.</span></div>
|
|
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> </div>
|
|
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor">#pragma once</span></div>
|
|
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor"></span></div>
|
|
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#include "../utils/DeviceTensor.cuh"</span></div>
|
|
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#include "../utils/Float16.cuh"</span></div>
|
|
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> </div>
|
|
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="keyword">namespace </span>faiss { <span class="keyword">namespace </span>gpu {</div>
|
|
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> </div>
|
|
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="keyword">class </span>GpuResources;</div>
|
|
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"></span></div>
|
|
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment">/// Calculates brute-force L2 distance between `vectors` and</span></div>
|
|
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment">/// `queries`, returning the k closest results seen</span></div>
|
|
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment"></span><span class="keywordtype">void</span> runL2Distance(GpuResources* resources,</div>
|
|
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>  Tensor<float, 2, true>& vectors,</div>
|
|
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  Tensor<float, 2, true>* vectorsTransposed,</div>
|
|
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  <span class="comment">// can be optionally pre-computed; nullptr if we</span></div>
|
|
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  <span class="comment">// have to compute it upon the call</span></div>
|
|
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  Tensor<float, 1, true>* vectorNorms,</div>
|
|
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  Tensor<float, 2, true>& queries,</div>
|
|
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  <span class="keywordtype">int</span> k,</div>
|
|
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  Tensor<float, 2, true>& outDistances,</div>
|
|
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  Tensor<int, 2, true>& outIndices,</div>
|
|
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  <span class="comment">// Do we care about `outDistances`? If not, we can</span></div>
|
|
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  <span class="comment">// take shortcuts.</span></div>
|
|
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  <span class="keywordtype">bool</span> ignoreOutDistances = <span class="keyword">false</span>);</div>
|
|
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="comment"></span></div>
|
|
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="comment">/// Calculates brute-force inner product distance between `vectors`</span></div>
|
|
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="comment">/// and `queries`, returning the k closest results seen</span></div>
|
|
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="comment"></span><span class="keywordtype">void</span> runIPDistance(GpuResources* resources,</div>
|
|
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  Tensor<float, 2, true>& vectors,</div>
|
|
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  Tensor<float, 2, true>* vectorsTransposed,</div>
|
|
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  Tensor<float, 2, true>& queries,</div>
|
|
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <span class="keywordtype">int</span> k,</div>
|
|
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  Tensor<float, 2, true>& outDistances,</div>
|
|
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  Tensor<int, 2, true>& outIndices);</div>
|
|
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> </div>
|
|
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="preprocessor">#ifdef FAISS_USE_FLOAT16</span></div>
|
|
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="preprocessor"></span><span class="keywordtype">void</span> runIPDistance(GpuResources* resources,</div>
|
|
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  Tensor<half, 2, true>& vectors,</div>
|
|
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  Tensor<half, 2, true>* vectorsTransposed,</div>
|
|
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  Tensor<half, 2, true>& queries,</div>
|
|
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keywordtype">int</span> k,</div>
|
|
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  Tensor<half, 2, true>& outDistances,</div>
|
|
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  Tensor<int, 2, true>& outIndices,</div>
|
|
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="keywordtype">bool</span> useHgemm);</div>
|
|
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> </div>
|
|
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="keywordtype">void</span> runL2Distance(GpuResources* resources,</div>
|
|
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  Tensor<half, 2, true>& vectors,</div>
|
|
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  Tensor<half, 2, true>* vectorsTransposed,</div>
|
|
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  Tensor<half, 1, true>* vectorNorms,</div>
|
|
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  Tensor<half, 2, true>& queries,</div>
|
|
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="keywordtype">int</span> k,</div>
|
|
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  Tensor<half, 2, true>& outDistances,</div>
|
|
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  Tensor<int, 2, true>& outIndices,</div>
|
|
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <span class="keywordtype">bool</span> useHgemm,</div>
|
|
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="keywordtype">bool</span> ignoreOutDistances = <span class="keyword">false</span>);</div>
|
|
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span> <span class="preprocessor">#endif</span></div>
|
|
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="preprocessor"></span></div>
|
|
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span> } } <span class="comment">// namespace</span></div>
|
|
</div><!-- fragment --></div><!-- contents -->
|
|
<!-- start footer part -->
|
|
<hr class="footer"/><address class="footer"><small>
|
|
Generated by  <a href="http://www.doxygen.org/index.html">
|
|
<img class="footer" src="doxygen.png" alt="doxygen"/>
|
|
</a> 1.8.5
|
|
</small></address>
|
|
</body>
|
|
</html>
|