documentation/classarm__compute_1_1_c_l_softmax_layer.xhtml

   1 <!-- HTML header for doxygen 1.8.9.1-->
   2 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
   3 <html xmlns="http://www.w3.org/1999/xhtml">
   4 <head>
   5 <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
   6 <meta http-equiv="X-UA-Compatible" content="IE=9"/>
   7 <meta name="generator" content="Doxygen 1.8.11"/>
   8 <meta name="robots" content="NOINDEX, NOFOLLOW" /> <!-- Prevent indexing by search engines -->
   9 <title>ARM Compute Library: CLSoftmaxLayer Class Reference</title>
  10 <link href="tabs.css" rel="stylesheet" type="text/css"/>
  11 <script type="text/javascript" src="jquery.js"></script>
  12 <script type="text/javascript" src="dynsections.js"></script>
  13 <link href="navtree.css" rel="stylesheet" type="text/css"/>
  14 <script type="text/javascript" src="resize.js"></script>
  15 <script type="text/javascript" src="navtreedata.js"></script>
  16 <script type="text/javascript" src="navtree.js"></script>
  17 <script type="text/javascript">
  18   $(document).ready(initResizable);
  19   $(window).load(resizeHeight);
  20 </script>
  21 <link href="search/search.css" rel="stylesheet" type="text/css"/>
  22 <script type="text/javascript" src="search/searchdata.js"></script>
  23 <script type="text/javascript" src="search/search.js"></script>
  24 <script type="text/javascript">
  25   $(document).ready(function() { init_search(); });
  26 </script>
  27 <script type="text/x-mathjax-config">
  28   MathJax.Hub.Config({
  29     extensions: ["tex2jax.js"],
  30     jax: ["input/TeX","output/HTML-CSS"],
  31 });
  32 </script><script type="text/javascript" src="http://cdn.mathjax.org/mathjax/latest/MathJax.js"></script>
  33 <link href="doxygen.css" rel="stylesheet" type="text/css" />
  34 </head>
  35 <body>
  36 <div id="top"><!-- do not remove this div, it is closed by doxygen! -->
  37 <div id="titlearea">
  38 <table cellspacing="0" cellpadding="0">
  39  <tbody>
  40  <tr style="height: 56px;">
  41   <td style="padding-left: 0.5em;">
  42    <div id="projectname">ARM Compute Library
  43    &#160;<span id="projectnumber">17.03.1</span>
  44    </div>
  45   </td>
  46  </tr>
  47  </tbody>
  48 </table>
  49 </div>
  50 <!-- end header part -->
  51 <!-- Generated by Doxygen 1.8.11 -->
  52 <script type="text/javascript">
  53 var searchBox = new SearchBox("searchBox", "search",false,'Search');
  54 </script>
  55   <div id="navrow1" class="tabs">
  56     <ul class="tablist">
  57       <li><a href="index.xhtml"><span>Main&#160;Page</span></a></li>
  58       <li><a href="namespaces.xhtml"><span>Namespaces</span></a></li>
  59       <li class="current"><a href="annotated.xhtml"><span>Data&#160;Structures</span></a></li>
  60       <li><a href="files.xhtml"><span>Files</span></a></li>
  61       <li>
  62         <div id="MSearchBox" class="MSearchBoxInactive">
  63         <span class="left">
  64           <img id="MSearchSelect" src="search/mag_sel.png"
  65                onmouseover="return searchBox.OnSearchSelectShow()"
  66                onmouseout="return searchBox.OnSearchSelectHide()"
  67                alt=""/>
  68           <input type="text" id="MSearchField" value="Search" accesskey="S"
  69                onfocus="searchBox.OnSearchFieldFocus(true)"
  70                onblur="searchBox.OnSearchFieldFocus(false)"
  71                onkeyup="searchBox.OnSearchFieldChange(event)"/>
  72           </span><span class="right">
  73             <a id="MSearchClose" href="javascript:searchBox.CloseResultsWindow()"><img id="MSearchCloseImg" border="0" src="search/close.png" alt=""/></a>
  74           </span>
  75         </div>
  76       </li>
  77     </ul>
  78   </div>
  79   <div id="navrow2" class="tabs2">
  80     <ul class="tablist">
  81       <li><a href="annotated.xhtml"><span>Data&#160;Structures</span></a></li>
  82       <li><a href="classes.xhtml"><span>Data&#160;Structure&#160;Index</span></a></li>
  83       <li><a href="inherits.xhtml"><span>Class&#160;Hierarchy</span></a></li>
  84       <li><a href="functions.xhtml"><span>Data&#160;Fields</span></a></li>
  85     </ul>
  86   </div>
  87 </div><!-- top -->
  88 <div id="side-nav" class="ui-resizable side-nav-resizable">
  89   <div id="nav-tree">
  90     <div id="nav-tree-contents">
  91       <div id="nav-sync" class="sync"></div>
  92     </div>
  93   </div>
  94   <div id="splitbar" style="-moz-user-select:none;"
  95        class="ui-resizable-handle">
  96   </div>
  97 </div>
  98 <script type="text/javascript">
  99 $(document).ready(function(){initNavTree('classarm__compute_1_1_c_l_softmax_layer.xhtml','');});
 100 </script>
 101 <div id="doc-content">
 102 <!-- window showing the filter options -->
 103 <div id="MSearchSelectWindow"
 104      onmouseover="return searchBox.OnSearchSelectShow()"
 105      onmouseout="return searchBox.OnSearchSelectHide()"
 106      onkeydown="return searchBox.OnSearchSelectKey(event)">
 107 </div>
 108
 109 <!-- iframe showing the search results (closed by default) -->
 110 <div id="MSearchResultsWindow">
 111 <iframe src="javascript:void(0)" frameborder="0"
 112         name="MSearchResults" id="MSearchResults">
 113 </iframe>
 114 </div>
 115
 116 <div class="header">
 117   <div class="summary">
 118 <a href="#pub-methods">Public Member Functions</a>  </div>
 119   <div class="headertitle">
 120 <div class="title">CLSoftmaxLayer Class Reference</div>  </div>
 121 </div><!--header-->
 122 <div class="contents">
 123
 124 <p>Basic function to compute a SoftmaxLayer.
 125  <a href="classarm__compute_1_1_c_l_softmax_layer.xhtml#details">More...</a></p>
 126
 127 <p><code>#include &lt;<a class="el" href="_c_l_softmax_layer_8h_source.xhtml">CLSoftmaxLayer.h</a>&gt;</code></p>
 128 <div class="dynheader">
 129 Collaboration diagram for CLSoftmaxLayer:</div>
 130 <div class="dyncontent">
 131 <div class="center"><iframe scrolling="no" frameborder="0" src="classarm__compute_1_1_c_l_softmax_layer__coll__graph.svg" width="131" height="112"><p><b>This browser is not able to show SVG: try Firefox, Chrome, Safari, or Opera instead.</b></p></iframe>
 132 </div>
 133 <center><span class="legend">[<a target="top" href="graph_legend.xhtml">legend</a>]</span></center></div>
 134 <table class="memberdecls">
 135 <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
 136 Public Member Functions</h2></td></tr>
 137 <tr class="memitem:a8c789029aab57e2c8ce68cebddb26701"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classarm__compute_1_1_c_l_softmax_layer.xhtml#a8c789029aab57e2c8ce68cebddb26701">CLSoftmaxLayer</a> ()</td></tr>
 138 <tr class="memdesc:a8c789029aab57e2c8ce68cebddb26701"><td class="mdescLeft">&#160;</td><td class="mdescRight">Constructor.  <a href="#a8c789029aab57e2c8ce68cebddb26701">More...</a><br /></td></tr>
 139 <tr class="separator:a8c789029aab57e2c8ce68cebddb26701"><td class="memSeparator" colspan="2">&#160;</td></tr>
 140 <tr class="memitem:a074e10cfb217e657b9e81adeca2abc68"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classarm__compute_1_1_c_l_softmax_layer.xhtml#a074e10cfb217e657b9e81adeca2abc68">configure</a> (const <a class="el" href="classarm__compute_1_1_i_c_l_tensor.xhtml">ICLTensor</a> *input, <a class="el" href="classarm__compute_1_1_i_c_l_tensor.xhtml">ICLTensor</a> *output)</td></tr>
 141 <tr class="memdesc:a074e10cfb217e657b9e81adeca2abc68"><td class="mdescLeft">&#160;</td><td class="mdescRight">Set the input and output tensors.  <a href="#a074e10cfb217e657b9e81adeca2abc68">More...</a><br /></td></tr>
 142 <tr class="separator:a074e10cfb217e657b9e81adeca2abc68"><td class="memSeparator" colspan="2">&#160;</td></tr>
 143 <tr class="memitem:ad1717410afd0be936c6213a63c8005fb"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classarm__compute_1_1_c_l_softmax_layer.xhtml#ad1717410afd0be936c6213a63c8005fb">run</a> () override</td></tr>
 144 <tr class="memdesc:ad1717410afd0be936c6213a63c8005fb"><td class="mdescLeft">&#160;</td><td class="mdescRight">Run the kernels contained in the function.  <a href="#ad1717410afd0be936c6213a63c8005fb">More...</a><br /></td></tr>
 145 <tr class="separator:ad1717410afd0be936c6213a63c8005fb"><td class="memSeparator" colspan="2">&#160;</td></tr>
 146 <tr class="inherit_header pub_methods_classarm__compute_1_1_i_function"><td colspan="2" onclick="javascript:toggleInherit('pub_methods_classarm__compute_1_1_i_function')"><img src="closed.png" alt="-"/>&#160;Public Member Functions inherited from <a class="el" href="classarm__compute_1_1_i_function.xhtml">IFunction</a></td></tr>
 147 <tr class="memitem:ab921ecc3f3f6ae2b4bd61f3e1998d8c4 inherit pub_methods_classarm__compute_1_1_i_function"><td class="memItemLeft" align="right" valign="top">virtual&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classarm__compute_1_1_i_function.xhtml#ab921ecc3f3f6ae2b4bd61f3e1998d8c4">~IFunction</a> ()=default</td></tr>
 148 <tr class="memdesc:ab921ecc3f3f6ae2b4bd61f3e1998d8c4 inherit pub_methods_classarm__compute_1_1_i_function"><td class="mdescLeft">&#160;</td><td class="mdescRight">Destructor.  <a href="#ab921ecc3f3f6ae2b4bd61f3e1998d8c4">More...</a><br /></td></tr>
 149 <tr class="separator:ab921ecc3f3f6ae2b4bd61f3e1998d8c4 inherit pub_methods_classarm__compute_1_1_i_function"><td class="memSeparator" colspan="2">&#160;</td></tr>
 150 </table>
 151 <a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
 152 <div class="textblock"><p>Basic function to compute a SoftmaxLayer. </p>
 153 <p>Softmax is calculated by : </p><p class="formulaDsp">
 154 \[ out = exp(x - max(x)) / sum(exp(x - max(x))) \]
 155 </p>
 156 <p>This function runs the following kernels:</p><ol type="1">
 157 <li><a class="el" href="classarm__compute_1_1_c_l_logits1_d_max_kernel.xhtml">CLLogits1DMaxKernel</a></li>
 158 <li><a class="el" href="classarm__compute_1_1_c_l_logits1_d_shift_exp_sum_kernel.xhtml">CLLogits1DShiftExpSumKernel</a></li>
 159 <li><a class="el" href="classarm__compute_1_1_c_l_logits1_d_norm_kernel.xhtml">CLLogits1DNormKernel</a> </li>
 160 </ol>
 161
 162 <p>Definition at line <a class="el" href="_c_l_softmax_layer_8h_source.xhtml#l00045">45</a> of file <a class="el" href="_c_l_softmax_layer_8h_source.xhtml">CLSoftmaxLayer.h</a>.</p>
 163 </div><h2 class="groupheader">Constructor &amp; Destructor Documentation</h2>
 164 <a class="anchor" id="a8c789029aab57e2c8ce68cebddb26701"></a>
 165 <div class="memitem">
 166 <div class="memproto">
 167       <table class="memname">
 168         <tr>
 169           <td class="memname"><a class="el" href="classarm__compute_1_1_c_l_softmax_layer.xhtml">CLSoftmaxLayer</a> </td>
 170           <td>(</td>
 171           <td class="paramname"></td><td>)</td>
 172           <td></td>
 173         </tr>
 174       </table>
 175 </div><div class="memdoc">
 176
 177 <p>Constructor. </p>
 178
 179 </div>
 180 </div>
 181 <h2 class="groupheader">Member Function Documentation</h2>
 182 <a class="anchor" id="a074e10cfb217e657b9e81adeca2abc68"></a>
 183 <div class="memitem">
 184 <div class="memproto">
 185       <table class="memname">
 186         <tr>
 187           <td class="memname">void configure </td>
 188           <td>(</td>
 189           <td class="paramtype">const <a class="el" href="classarm__compute_1_1_i_c_l_tensor.xhtml">ICLTensor</a> *&#160;</td>
 190           <td class="paramname"><em>input</em>, </td>
 191         </tr>
 192         <tr>
 193           <td class="paramkey"></td>
 194           <td></td>
 195           <td class="paramtype"><a class="el" href="classarm__compute_1_1_i_c_l_tensor.xhtml">ICLTensor</a> *&#160;</td>
 196           <td class="paramname"><em>output</em>&#160;</td>
 197         </tr>
 198         <tr>
 199           <td></td>
 200           <td>)</td>
 201           <td></td><td></td>
 202         </tr>
 203       </table>
 204 </div><div class="memdoc">
 205
 206 <p>Set the input and output tensors. </p>
 207 <dl class="params"><dt>Parameters</dt><dd>
 208   <table class="params">
 209     <tr><td class="paramdir">[in]</td><td class="paramname">input</td><td>Source tensor. Data types supported: F16, F32. Number of channels must be 1. </td></tr>
 210     <tr><td class="paramdir">[out]</td><td class="paramname">output</td><td>Destination tensor. Matching input type and channel number. </td></tr>
 211   </table>
 212   </dd>
 213 </dl>
 214
 215 </div>
 216 </div>
 217 <a class="anchor" id="ad1717410afd0be936c6213a63c8005fb"></a>
 218 <div class="memitem">
 219 <div class="memproto">
 220 <table class="mlabels">
 221   <tr>
 222   <td class="mlabels-left">
 223       <table class="memname">
 224         <tr>
 225           <td class="memname">void run </td>
 226           <td>(</td>
 227           <td class="paramname"></td><td>)</td>
 228           <td></td>
 229         </tr>
 230       </table>
 231   </td>
 232   <td class="mlabels-right">
 233 <span class="mlabels"><span class="mlabel">override</span><span class="mlabel">virtual</span></span>  </td>
 234   </tr>
 235 </table>
 236 </div><div class="memdoc">
 237
 238 <p>Run the kernels contained in the function. </p>
 239 <p>For NEON kernels:</p><ul>
 240 <li>Multi-threading is used for the kernels which are parallelisable.</li>
 241 <li>By default std::thread::hardware_concurrency() threads are used.</li>
 242 </ul>
 243 <dl class="section note"><dt>Note</dt><dd><a class="el" href="classarm__compute_1_1_c_p_p_scheduler.xhtml#ae9dc1846ff1612778bbac85d46344aef">CPPScheduler::force_number_of_threads()</a> can be used to manually set the number of threads</dd></dl>
 244 <p>For OpenCL kernels:</p><ul>
 245 <li>All the kernels are enqueued on the queue associated with <a class="el" href="classarm__compute_1_1_c_l_scheduler.xhtml" title="Provides global access to a CL context and command queue. ">CLScheduler</a>.</li>
 246 <li>The queue is then flushed.</li>
 247 </ul>
 248 <dl class="section note"><dt>Note</dt><dd>The function will not block until the kernels are executed. It is the user's responsibility to wait. </dd></dl>
 249
 250 <p>Implements <a class="el" href="classarm__compute_1_1_i_function.xhtml#a18954417d3124a8095783ea13dc6d00b">IFunction</a>.</p>
 251
 252 </div>
 253 </div>
 254 <hr/>The documentation for this class was generated from the following file:<ul>
 255 <li>arm_compute/runtime/CL/functions/<a class="el" href="_c_l_softmax_layer_8h_source.xhtml">CLSoftmaxLayer.h</a></li>
 256 </ul>
 257 </div><!-- contents -->
 258 </div><!-- doc-content -->
 259 <!-- start footer part -->
 260 <div id="nav-path" class="navpath"><!-- id is needed for treeview function! -->
 261   <ul>
 262     <li class="navelem"><a class="el" href="namespacearm__compute.xhtml">arm_compute</a></li><li class="navelem"><a class="el" href="classarm__compute_1_1_c_l_softmax_layer.xhtml">CLSoftmaxLayer</a></li>
 263     <li class="footer">Generated on Fri Mar 24 2017 17:23:50 for ARM Compute Library by
 264     <a href="http://www.doxygen.org/index.html">
 265     <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.8.11 </li>
 266   </ul>
 267 </div>
 268 </body>
 269 </html>