<!-- HTML header for doxygen 1.8.14-->
<!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 1.8.11"/>
<meta name="viewport" content="width=device-width, initial-scale=1"/>
<title>Caffe2 - C++ API: modules/detectron/smooth_l1_loss_op.h Source File</title>
<link href="tabs.css" rel="stylesheet" type="text/css"/>
<link rel="icon" href="/static/favicon.png" type="image/x-icon">
<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/searchdata.js"></script>
<script type="text/javascript" src="search/search.js"></script>
<script type="text/javascript">
$(document).ready(function() { init_search(); });
</script>
<link href="stylesheet.css" rel="stylesheet" type="text/css" />
<link href="main.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 id="projectlogo" width="56"><a href="/"><img alt="Logo" src="Caffe2-with-name-55-tall.png"/></a></td>
<td id="projectalign" style="padding-left: 0.5em;">
<div id="projectname">Caffe2 - C++ API
</div>
<div id="projectbrief">A deep learning, cross platform ML framework</div>
</td>
</tr>
</tbody>
</table>
</div>
<!-- end header part -->
<!-- Generated by Doxygen 1.8.11 -->
<script type="text/javascript">
var searchBox = new SearchBox("searchBox", "search",false,'Search');
</script>
<div id="navrow1" class="tabs">
<ul class="tablist">
<li><a href="pages.html"><span>Related Pages</span></a></li>
<li><a href="modules.html"><span>Modules</span></a></li>
<li><a href="annotated.html"><span>Data Structures</span></a></li>
<li class="current"><a href="files.html"><span>Files</span></a></li>
<li><a href="/doxygen-c/html/classes.html"><span>C++ API</span></a></li>
<li><a href="/doxygen-python/html/annotated.html"><span>Python API</span></a></li>
<li><a href="https://github.com/caffe2/caffe2"><span>GitHub</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>
<li><a href="globals.html"><span>Globals</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)">
</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_e05d7e2b1ecd646af5bb94391405f3b5.html">modules</a></li><li class="navelem"><a class="el" href="dir_b6f52fee39eec75e1906270da82720f6.html">detectron</a></li> </ul>
</div>
</div><!-- top -->
<div class="header">
<div class="headertitle">
<div class="title">smooth_l1_loss_op.h</div> </div>
</div><!--header-->
<div class="contents">
<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> </div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#ifndef SMOOTH_L1_LOSS_OP_H_</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor">#define SMOOTH_L1_LOSS_OP_H_</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> </div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#include "caffe2/core/context.h"</span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#include "caffe2/core/logging.h"</span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#include "caffe2/core/operator.h"</span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#include "caffe2/utils/math.h"</span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> </div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="keyword">namespace </span><a class="code" href="namespacecaffe2.html">caffe2</a> {</div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> </div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T, <span class="keyword">class</span> Context></div><div class="line"><a name="l00028"></a><span class="lineno"><a class="line" href="classcaffe2_1_1_smooth_l1_loss_op.html"> 28</a></span> <span class="keyword">class </span><a class="code" href="classcaffe2_1_1_smooth_l1_loss_op.html">SmoothL1LossOp</a> final : <span class="keyword">public</span> <a class="code" href="classcaffe2_1_1_operator.html">Operator</a><Context> {</div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  <a class="code" href="classcaffe2_1_1_smooth_l1_loss_op.html">SmoothL1LossOp</a>(<span class="keyword">const</span> OperatorDef& operator_def, <a class="code" href="classcaffe2_1_1_workspace.html">Workspace</a>* ws)</div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  : <a class="code" href="classcaffe2_1_1_operator.html">Operator<Context></a>(operator_def, ws),</div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  beta_(OperatorBase::GetSingleArgument<float>(<span class="stringliteral">"beta"</span>, 1.)),</div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  scale_(OperatorBase::GetSingleArgument<float>(<span class="stringliteral">"scale"</span>, 1.)) {</div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  CAFFE_ENFORCE(beta_ > 0);</div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  CAFFE_ENFORCE(scale_ >= 0);</div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  }</div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  USE_OPERATOR_CONTEXT_FUNCTIONS;</div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> </div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="keywordtype">bool</span> RunOnDevice()<span class="keyword"> override </span>{</div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <span class="comment">// No CPU implementation for now</span></div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  CAFFE_NOT_IMPLEMENTED;</div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  }</div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span> </div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <span class="keyword">protected</span>:</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="keywordtype">float</span> beta_; <span class="comment">// Transition point from L1 to L2 loss</span></div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="keywordtype">float</span> scale_; <span class="comment">// Scale the loss by scale_</span></div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <a class="code" href="classcaffe2_1_1_tensor.html">Tensor<Context></a> buff_; <span class="comment">// Buffer for element-wise differences</span></div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span> };</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span> </div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T, <span class="keyword">class</span> Context></div><div class="line"><a name="l00051"></a><span class="lineno"><a class="line" href="classcaffe2_1_1_smooth_l1_loss_gradient_op.html"> 51</a></span> <span class="keyword">class </span><a class="code" href="classcaffe2_1_1_smooth_l1_loss_gradient_op.html">SmoothL1LossGradientOp</a> final : <span class="keyword">public</span> <a class="code" href="classcaffe2_1_1_operator.html">Operator</a><Context> {</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <a class="code" href="classcaffe2_1_1_smooth_l1_loss_gradient_op.html">SmoothL1LossGradientOp</a>(<span class="keyword">const</span> OperatorDef& def, <a class="code" href="classcaffe2_1_1_workspace.html">Workspace</a>* ws)</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  : <a class="code" href="classcaffe2_1_1_operator.html">Operator<Context></a>(def, ws),</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  beta_(OperatorBase::GetSingleArgument<float>(<span class="stringliteral">"beta"</span>, 1.)),</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  scale_(OperatorBase::GetSingleArgument<float>(<span class="stringliteral">"scale"</span>, 1.)) {</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  CAFFE_ENFORCE(beta_ > 0);</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  CAFFE_ENFORCE(scale_ >= 0);</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  }</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  USE_OPERATOR_CONTEXT_FUNCTIONS;</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span> </div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="keywordtype">bool</span> RunOnDevice()<span class="keyword"> override </span>{</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="comment">// No CPU implementation for now</span></div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  CAFFE_NOT_IMPLEMENTED;</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  }</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span> </div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keyword">protected</span>:</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="keywordtype">float</span> beta_; <span class="comment">// Transition point from L1 to L2 loss</span></div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keywordtype">float</span> scale_; <span class="comment">// Scale the loss by scale_</span></div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <a class="code" href="classcaffe2_1_1_tensor.html">Tensor<Context></a> buff_; <span class="comment">// Buffer for element-wise differences</span></div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span> };</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span> </div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span> } <span class="comment">// namespace caffe2</span></div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span> </div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span> <span class="preprocessor">#endif // SMOOTH_L1_LOSS_OP_H_</span></div><div class="ttc" id="classcaffe2_1_1_smooth_l1_loss_op_html"><div class="ttname"><a href="classcaffe2_1_1_smooth_l1_loss_op.html">caffe2::SmoothL1LossOp</a></div><div class="ttdef"><b>Definition:</b> <a href="smooth__l1__loss__op_8h_source.html#l00028">smooth_l1_loss_op.h:28</a></div></div>
<div class="ttc" id="classcaffe2_1_1_tensor_html"><div class="ttname"><a href="classcaffe2_1_1_tensor.html">caffe2::Tensor</a></div><div class="ttdoc">Tensor is the basic class in Caffe2 that stores a contiguous memory with its shape information...</div><div class="ttdef"><b>Definition:</b> <a href="tensor_8h_source.html#l00093">tensor.h:93</a></div></div>
<div class="ttc" id="classcaffe2_1_1_smooth_l1_loss_gradient_op_html"><div class="ttname"><a href="classcaffe2_1_1_smooth_l1_loss_gradient_op.html">caffe2::SmoothL1LossGradientOp</a></div><div class="ttdef"><b>Definition:</b> <a href="smooth__l1__loss__op_8h_source.html#l00051">smooth_l1_loss_op.h:51</a></div></div>
<div class="ttc" id="classcaffe2_1_1_workspace_html"><div class="ttname"><a href="classcaffe2_1_1_workspace.html">caffe2::Workspace</a></div><div class="ttdoc">Workspace is a class that holds all the related objects created during runtime: (1) all blobs...</div><div class="ttdef"><b>Definition:</b> <a href="workspace_8h_source.html#l00047">workspace.h:47</a></div></div>
<div class="ttc" id="namespacecaffe2_html"><div class="ttname"><a href="namespacecaffe2.html">caffe2</a></div><div class="ttdoc">A global dictionary that holds information about what Caffe2 modules have been loaded in the current ...</div><div class="ttdef"><b>Definition:</b> <a href="convert__encoded__to__raw__leveldb_8cc_source.html#l00047">convert_encoded_to_raw_leveldb.cc:47</a></div></div>
<div class="ttc" id="classcaffe2_1_1_operator_html"><div class="ttname"><a href="classcaffe2_1_1_operator.html">caffe2::Operator</a></div><div class="ttdef"><b>Definition:</b> <a href="core_2operator_8h_source.html#l00325">operator.h:325</a></div></div>
</div><!-- fragment --></div><!-- contents -->
<!-- HTML footer for doxygen 1.8.14-->
<!-- start footer part -->
<hr class="footer"/><address class="footer"><small>
Generated on Thu Apr 19 2018 13:03:57 for Caffe2 - C++ API by  <a href="http://www.doxygen.org/index.html">
<img class="footer" src="doxygen.png" alt="doxygen"/>
</a> 1.8.11
</small></address>
<div class="footerContainer">
<div id="footer_wrap" class="wrapper footerWrapper">
<div class="footerBlocks">
<div id="fb_oss" class="footerSection fbOpenSourceFooter">
<svg class="facebookOSSLogoSvg" viewBox="0 0 1133.9 1133.9" x="0px" y="0px" height=50 width=50>
<g>
<path class="logoRing outerRing" d="M 498.3 3.7 c 153.6 88.9 307.3 177.7 461.1 266.2 c 7.6 4.4 10.3 9.1 10.3 17.8 c -0.3 179.1 -0.2 358.3 0 537.4 c 0 8.1 -2.4 12.8 -9.7 17.1 c -154.5 88.9 -308.8 178.1 -462.9 267.5 c -9 5.2 -15.5 5.3 -24.6 0.1 c -153.9 -89.2 -307.9 -178 -462.1 -266.8 C 3 838.8 0 833.9 0 825.1 c 0.3 -179.1 0.2 -358.3 0 -537.4 c 0 -8.6 2.6 -13.6 10.2 -18 C 164.4 180.9 318.4 92 472.4 3 C 477 -1.5 494.3 -0.7 498.3 3.7 Z M 48.8 555.3 c 0 79.9 0.2 159.9 -0.2 239.8 c -0.1 10 3 15.6 11.7 20.6 c 137.2 78.8 274.2 157.8 411 237.3 c 9.9 5.7 17 5.7 26.8 0.1 c 137.5 -79.8 275.2 -159.2 412.9 -238.5 c 7.4 -4.3 10.5 -8.9 10.5 -17.8 c -0.3 -160.2 -0.3 -320.5 0 -480.7 c 0 -8.8 -2.8 -13.6 -10.3 -18 C 772.1 218 633.1 137.8 494.2 57.4 c -6.5 -3.8 -11.5 -4.5 -18.5 -0.5 C 336.8 137.4 197.9 217.7 58.8 297.7 c -7.7 4.4 -10.2 9.2 -10.2 17.9 C 48.9 395.5 48.8 475.4 48.8 555.3 Z" />
<path class="logoRing middleRing" d="M 184.4 555.9 c 0 -33.3 -1 -66.7 0.3 -100 c 1.9 -48 24.1 -86 64.7 -110.9 c 54.8 -33.6 110.7 -65.5 167 -96.6 c 45.7 -25.2 92.9 -24.7 138.6 1 c 54.4 30.6 108.7 61.5 162.2 93.7 c 44 26.5 67.3 66.8 68 118.4 c 0.9 63.2 0.9 126.5 0 189.7 c -0.7 50.6 -23.4 90.7 -66.6 116.9 c -55 33.4 -110.8 65.4 -167.1 96.5 c -43.4 24 -89 24.2 -132.3 0.5 c -57.5 -31.3 -114.2 -64 -170 -98.3 c -41 -25.1 -62.9 -63.7 -64.5 -112.2 C 183.5 621.9 184.3 588.9 184.4 555.9 Z M 232.9 556.3 c 0 29.5 0.5 59.1 -0.1 88.6 c -0.8 39.2 16.9 67.1 50.2 86.2 c 51.2 29.4 102.2 59.2 153.4 88.4 c 31.4 17.9 63.6 18.3 95 0.6 c 53.7 -30.3 107.1 -61.2 160.3 -92.5 c 29.7 -17.5 45 -44.5 45.3 -78.8 c 0.6 -61.7 0.5 -123.5 0 -185.2 c -0.3 -34.4 -15.3 -61.5 -44.9 -79 C 637.7 352.6 583 320.8 527.9 290 c -27.5 -15.4 -57.2 -16.1 -84.7 -0.7 c -56.9 31.6 -113.4 64 -169.1 97.6 c -26.4 15.9 -40.7 41.3 -41.1 72.9 C 232.6 491.9 232.9 524.1 232.9 556.3 Z" />
<path class="logoRing innerRing" d="M 484.9 424.4 c 69.8 -2.8 133.2 57.8 132.6 132 C 617 630 558.5 688.7 484.9 689.1 c -75.1 0.4 -132.6 -63.6 -132.7 -132.7 C 352.1 485 413.4 421.5 484.9 424.4 Z M 401.3 556.7 c -3.4 37.2 30.5 83.6 83 84.1 c 46.6 0.4 84.8 -37.6 84.9 -84 c 0.1 -46.6 -37.2 -84.4 -84.2 -84.6 C 432.2 472.1 397.9 518.3 401.3 556.7 Z" />
</g>
</svg>
<h2>Facebook Open Source</h2>
</div>
<div class="footerSection">
<a class="footerLink" href="https://code.facebook.com/projects/" target="_blank">Open Source Projects</a>
<a class="footerLink" href="https://github.com/facebook/" target="_blank">GitHub</a>
<a class="footerLink" href="https://twitter.com/fbOpenSource" target="_blank">Twitter</a>
</div>
<div class="footerSection rightAlign">
<a class="footerLink" href="https://github.com/caffe2/caffe2" target="_blank">Contribute to this project on GitHub</a>
</div>
</div>
</div>
</div>
<script type="text/javascript" src="/js/jekyll-link-anchors.js"></script>
<script>
(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
})(window,document,'script','//www.google-analytics.com/analytics.js','ga');
ga('create', '{{ site.gacode }}', 'auto');
ga('send', 'pageview');
</script>
</body>
</html>