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<a href="take__grad_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>&#160;<span class="comment">/*</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span>&#160;<span class="comment"> * Licensed to the Apache Software Foundation (ASF) under one</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span>&#160;<span class="comment"> * or more contributor license agreements. See the NOTICE file</span></div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160; </div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160;<span class="preprocessor">#ifndef MSHADOW_EXTENSION_TAKE_GRAD_H_</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160;<span class="preprocessor">#define MSHADOW_EXTENSION_TAKE_GRAD_H_</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>&#160; </div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>&#160;<span class="preprocessor">#include &quot;../extension.h&quot;</span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160; </div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>&#160;<span class="keyword">namespace </span><a class="code" href="namespacemshadow.html">mshadow</a> {</div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>&#160;<span class="keyword">namespace </span>expr {</div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>&#160; </div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> IndexExp, <span class="keyword">typename</span> SrcExp, <span class="keyword">typename</span> DType&gt;</div>
<div class="line"><a name="l00040"></a><span class="lineno"><a class="line" href="structmshadow_1_1expr_1_1TakeGradExp.html"> 40</a></span>&#160;<span class="keyword">struct </span><a class="code" href="structmshadow_1_1expr_1_1TakeGradExp.html">TakeGradExp</a> : <span class="keyword">public</span> <a class="code" href="structmshadow_1_1expr_1_1Exp.html">Exp</a>&lt;TakeGradExp&lt;IndexExp, SrcExp, DType&gt;,</div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>&#160; DType, type::kChainer&gt; {</div>
<div class="line"><a name="l00043"></a><span class="lineno"><a class="line" href="structmshadow_1_1expr_1_1TakeGradExp.html#a7107477e31e27194e99302908963cc14"> 43</a></span>&#160; <span class="keyword">const</span> IndexExp &amp;<a class="code" href="structmshadow_1_1expr_1_1TakeGradExp.html#a7107477e31e27194e99302908963cc14">index_</a>;</div>
<div class="line"><a name="l00045"></a><span class="lineno"><a class="line" href="structmshadow_1_1expr_1_1TakeGradExp.html#adaed91b0d7a02931bf6d7346deae21c1"> 45</a></span>&#160; <span class="keyword">const</span> SrcExp &amp;<a class="code" href="structmshadow_1_1expr_1_1TakeGradExp.html#adaed91b0d7a02931bf6d7346deae21c1">src_</a>;</div>
<div class="line"><a name="l00047"></a><span class="lineno"><a class="line" href="structmshadow_1_1expr_1_1TakeGradExp.html#a73ea635cf5c185db47fb2260171bc7a9"> 47</a></span>&#160; <span class="keyword">const</span> <a class="code" href="namespacemshadow.html#adcbc2e1131386fccb1474b0bdf045926">index_t</a> <a class="code" href="structmshadow_1_1expr_1_1TakeGradExp.html#a73ea635cf5c185db47fb2260171bc7a9">input_dim_</a>;</div>
<div class="line"><a name="l00049"></a><span class="lineno"><a class="line" href="structmshadow_1_1expr_1_1TakeGradExp.html#a30739e6bde0530de7a4d10c5d22890b3"> 49</a></span>&#160; <a class="code" href="structmshadow_1_1expr_1_1TakeGradExp.html#a30739e6bde0530de7a4d10c5d22890b3">TakeGradExp</a>(<span class="keyword">const</span> IndexExp &amp;index, <span class="keyword">const</span> SrcExp &amp;src, <span class="keyword">const</span> <a class="code" href="namespacemshadow.html#adcbc2e1131386fccb1474b0bdf045926">index_t</a> input_dim)</div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>&#160; : <a class="code" href="structmshadow_1_1expr_1_1TakeGradExp.html#a7107477e31e27194e99302908963cc14">index_</a>(index), <a class="code" href="structmshadow_1_1expr_1_1TakeGradExp.html#adaed91b0d7a02931bf6d7346deae21c1">src_</a>(src), <a class="code" href="structmshadow_1_1expr_1_1TakeGradExp.html#a73ea635cf5c185db47fb2260171bc7a9">input_dim_</a>(input_dim) {}</div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>&#160;}; <span class="comment">// struct TakeGradExp</span></div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160; </div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160; </div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> IndexExp,</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160; <span class="keyword">typename</span> SrcExp,</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160; <span class="keyword">typename</span> DType,</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160; <span class="keywordtype">int</span> e1, <span class="keywordtype">int</span> e2&gt;</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160;<span class="keyword">inline</span> TakeGradExp&lt;IndexExp, SrcExp, DType&gt;</div>
<div class="line"><a name="l00059"></a><span class="lineno"><a class="line" href="namespacemshadow_1_1expr.html#ae2176ac0df38fd5655ef049c1ca6467e"> 59</a></span>&#160;<a class="code" href="namespacemshadow_1_1expr.html#ae2176ac0df38fd5655ef049c1ca6467e">take_grad</a>(<span class="keyword">const</span> <a class="code" href="structmshadow_1_1expr_1_1Exp.html">Exp&lt;IndexExp, DType, e1&gt;</a> &amp;index,</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160; <span class="keyword">const</span> <a class="code" href="structmshadow_1_1expr_1_1Exp.html">Exp&lt;SrcExp, DType, e2&gt;</a> &amp;src,</div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>&#160; <span class="keyword">const</span> <a class="code" href="namespacemshadow.html#adcbc2e1131386fccb1474b0bdf045926">index_t</a> input_dim) {</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160; <span class="keywordflow">return</span> <a class="code" href="structmshadow_1_1expr_1_1TakeGradExp.html">TakeGradExp&lt;IndexExp, SrcExp, DType&gt;</a>(index.<a class="code" href="structmshadow_1_1expr_1_1Exp.html#adb7e4afd0baed78d66cff87de0a6621f">self</a>(),</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160; src.<a class="code" href="structmshadow_1_1expr_1_1Exp.html#adb7e4afd0baed78d66cff87de0a6621f">self</a>(),</div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>&#160; input_dim);</div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>&#160;}</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>&#160; </div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>&#160;<span class="comment">//----------------------</span></div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>&#160;<span class="comment">// Execution plan</span></div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>&#160;<span class="comment">//----------------------</span></div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>&#160; </div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> IndexExp, <span class="keyword">typename</span> SrcExp, <span class="keyword">typename</span> DType&gt;</div>
<div class="line"><a name="l00072"></a><span class="lineno"><a class="line" href="structmshadow_1_1expr_1_1Plan_3_01TakeGradExp_3_01IndexExp_00_01SrcExp_00_01DType_01_4_00_01DType_01_4.html"> 72</a></span>&#160;<span class="keyword">struct </span><a class="code" href="classmshadow_1_1expr_1_1Plan.html">Plan</a>&lt;<a class="code" href="structmshadow_1_1expr_1_1TakeGradExp.html">TakeGradExp</a>&lt;IndexExp, SrcExp, DType&gt;, DType&gt; {</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>&#160; <span class="keyword">public</span>:</div>
<div class="line"><a name="l00074"></a><span class="lineno"><a class="line" href="structmshadow_1_1expr_1_1Plan_3_01TakeGradExp_3_01IndexExp_00_01SrcExp_00_01DType_01_4_00_01DType_01_4.html#a92e512833bd483c3d066f43d6cf82b59"> 74</a></span>&#160; <span class="keyword">explicit</span> <a class="code" href="structmshadow_1_1expr_1_1Plan_3_01TakeGradExp_3_01IndexExp_00_01SrcExp_00_01DType_01_4_00_01DType_01_4.html#a92e512833bd483c3d066f43d6cf82b59">Plan</a>(<span class="keyword">const</span> <a class="code" href="structmshadow_1_1expr_1_1TakeGradExp.html">TakeGradExp&lt;IndexExp, SrcExp, DType&gt;</a> &amp;e)</div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>&#160; : index_(<a class="code" href="namespacemshadow_1_1expr.html#aefd008a0bf012dc8fb99d9bbcca7a078">MakePlan</a>(e.index_)),</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>&#160; src_(<a class="code" href="namespacemshadow_1_1expr.html#aefd008a0bf012dc8fb99d9bbcca7a078">MakePlan</a>(e.src_)),</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>&#160; batch_size_(<a class="code" href="structmshadow_1_1expr_1_1ShapeCheck.html">ShapeCheck</a>&lt;1, IndexExp&gt;::Check(e.index_)[0]) {</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>&#160; }</div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>&#160; </div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>&#160; <span class="comment">// now return shape: in * out</span></div>
<div class="line"><a name="l00081"></a><span class="lineno"><a class="line" href="structmshadow_1_1expr_1_1Plan_3_01TakeGradExp_3_01IndexExp_00_01SrcExp_00_01DType_01_4_00_01DType_01_4.html#a13cd0f3144a3e88e16d2cb6c29648f17"> 81</a></span>&#160; <a class="code" href="3rdparty_2mshadow_2mshadow_2base_8h.html#af205b8ab4d8733133d590df7d2639d69">MSHADOW_XINLINE</a> DType <a class="code" href="structmshadow_1_1expr_1_1Plan_3_01TakeGradExp_3_01IndexExp_00_01SrcExp_00_01DType_01_4_00_01DType_01_4.html#a13cd0f3144a3e88e16d2cb6c29648f17">Eval</a>(<a class="code" href="namespacemshadow.html#adcbc2e1131386fccb1474b0bdf045926">index_t</a> y, <a class="code" href="namespacemshadow.html#adcbc2e1131386fccb1474b0bdf045926">index_t</a> x)<span class="keyword"> const </span>{</div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>&#160; DType ret = 0.f;</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>&#160; <span class="keywordflow">for</span> (<a class="code" href="namespacemshadow.html#adcbc2e1131386fccb1474b0bdf045926">index_t</a> i = 0; i &lt; batch_size_; ++i) {</div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>&#160; <a class="code" href="namespacemshadow.html#adcbc2e1131386fccb1474b0bdf045926">index_t</a> idx = <span class="keyword">static_cast&lt;</span><a class="code" href="namespacemshadow.html#adcbc2e1131386fccb1474b0bdf045926">index_t</a><span class="keyword">&gt;</span>(index_.Eval(0, i));</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>&#160; <span class="keywordflow">if</span> (idx == y) {</div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>&#160; ret += <span class="keyword">static_cast&lt;</span>DType<span class="keyword">&gt;</span>(src_.Eval(i, x));</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>&#160; }</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>&#160; }</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>&#160; <span class="keywordflow">return</span> ret;</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>&#160; }</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>&#160; </div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>&#160; <span class="keyword">private</span>:</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>&#160; <a class="code" href="classmshadow_1_1expr_1_1Plan.html">expr::Plan&lt;IndexExp, DType&gt;</a> index_;</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>&#160; <a class="code" href="classmshadow_1_1expr_1_1Plan.html">expr::Plan&lt;SrcExp, DType&gt;</a> src_;</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>&#160; <span class="keyword">const</span> <a class="code" href="namespacemshadow.html#adcbc2e1131386fccb1474b0bdf045926">index_t</a> batch_size_;</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>&#160;}; <span class="comment">// struct Plan</span></div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>&#160; </div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>&#160; </div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> IndexExp, <span class="keyword">typename</span> SrcExp, <span class="keyword">typename</span> DType&gt;</div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>&#160;<span class="keyword">inline</span> Plan&lt;TakeGradExp&lt;IndexExp, SrcExp, DType&gt;, DType&gt;</div>
<div class="line"><a name="l00101"></a><span class="lineno"><a class="line" href="namespacemshadow_1_1expr.html#a7e34e599f5df93e96f20c4cb24f2251c"> 101</a></span>&#160;<a class="code" href="namespacemshadow_1_1expr.html#aefd008a0bf012dc8fb99d9bbcca7a078">MakePlan</a>(<span class="keyword">const</span> <a class="code" href="structmshadow_1_1expr_1_1TakeGradExp.html">TakeGradExp&lt;IndexExp, SrcExp, DType&gt;</a> &amp;exp) {</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>&#160; <span class="keywordflow">return</span> <a class="code" href="classmshadow_1_1expr_1_1Plan.html">Plan&lt;TakeGradExp&lt;IndexExp, SrcExp, DType&gt;</a>, DType&gt;(exp);</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>&#160;}</div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>&#160; </div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>&#160;<span class="keyword">template</span>&lt;<span class="keywordtype">int</span> dim, <span class="keyword">typename</span> IndexExp, <span class="keyword">typename</span> SrcExp, <span class="keyword">typename</span> DType&gt;</div>
<div class="line"><a name="l00106"></a><span class="lineno"><a class="line" href="structmshadow_1_1expr_1_1ShapeCheck_3_01dim_00_01TakeGradExp_3_01IndexExp_00_01SrcExp_00_01DType_01_4_01_4.html"> 106</a></span>&#160;<span class="keyword">struct </span><a class="code" href="structmshadow_1_1expr_1_1ShapeCheck.html">ShapeCheck</a>&lt;dim, <a class="code" href="structmshadow_1_1expr_1_1TakeGradExp.html">TakeGradExp</a>&lt;IndexExp, SrcExp, DType&gt; &gt; {</div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>&#160; <span class="keyword">inline</span> <span class="keyword">static</span> <a class="code" href="structmshadow_1_1Shape.html">Shape&lt;dim&gt;</a></div>
<div class="line"><a name="l00108"></a><span class="lineno"><a class="line" href="structmshadow_1_1expr_1_1ShapeCheck_3_01dim_00_01TakeGradExp_3_01IndexExp_00_01SrcExp_00_01DType_01_4_01_4.html#a01832f8db3f82b89b62c994dbf12314d"> 108</a></span>&#160; <a class="code" href="structmshadow_1_1expr_1_1ShapeCheck_3_01dim_00_01TakeGradExp_3_01IndexExp_00_01SrcExp_00_01DType_01_4_01_4.html#a01832f8db3f82b89b62c994dbf12314d">Check</a>(<span class="keyword">const</span> <a class="code" href="structmshadow_1_1expr_1_1TakeGradExp.html">TakeGradExp&lt;IndexExp, SrcExp, DType&gt;</a> &amp;t) {</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>&#160; CHECK(dim == 2)</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>&#160; &lt;&lt; <span class="stringliteral">&quot;TakeGradExp only support 2D output&quot;</span>;</div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>&#160; <span class="comment">// Shape&lt;1&gt; dshape = ShapeCheck&lt;1, IndexExp&gt;::Check(t.index_);</span></div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>&#160; <a class="code" href="structmshadow_1_1Shape.html">Shape&lt;2&gt;</a> gshape = <a class="code" href="structmshadow_1_1expr_1_1ShapeCheck.html#af44e6a3b97cf3b245bc1b7ad4cacb306">ShapeCheck&lt;2, SrcExp&gt;::Check</a>(t.<a class="code" href="structmshadow_1_1expr_1_1TakeGradExp.html#adaed91b0d7a02931bf6d7346deae21c1">src_</a>);</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>&#160; <a class="code" href="structmshadow_1_1Shape.html">Shape&lt;dim&gt;</a> ret;</div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>&#160; ret[0] = t.<a class="code" href="structmshadow_1_1expr_1_1TakeGradExp.html#a73ea635cf5c185db47fb2260171bc7a9">input_dim_</a>;</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>&#160; ret[1] = gshape[1];</div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>&#160; <span class="keywordflow">return</span> ret;</div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>&#160; }</div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>&#160;}; <span class="comment">// struct ShapeCheck</span></div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>&#160; </div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> IndexExp, <span class="keyword">typename</span> SrcExp, <span class="keyword">typename</span> DType&gt;</div>
<div class="line"><a name="l00121"></a><span class="lineno"><a class="line" href="structmshadow_1_1expr_1_1ExpInfo_3_01TakeGradExp_3_01IndexExp_00_01SrcExp_00_01DType_01_4_01_4.html"> 121</a></span>&#160;<span class="keyword">struct </span><a class="code" href="structmshadow_1_1expr_1_1ExpInfo.html">ExpInfo</a>&lt;<a class="code" href="structmshadow_1_1expr_1_1TakeGradExp.html">TakeGradExp</a>&lt;IndexExp, SrcExp, DType&gt; &gt; {</div>
<div class="line"><a name="l00122"></a><span class="lineno"><a class="line" href="structmshadow_1_1expr_1_1ExpInfo_3_01TakeGradExp_3_01IndexExp_00_01SrcExp_00_01DType_01_4_01_4.html#a0c7677b7e5f8d3b7c9e948772b82803d"> 122</a></span>&#160; <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">int</span> <a class="code" href="structmshadow_1_1expr_1_1ExpInfo.html#a0b0afc287b577f89dc3eb119c2fef778">kDim</a> = 2;</div>
<div class="line"><a name="l00123"></a><span class="lineno"><a class="line" href="structmshadow_1_1expr_1_1ExpInfo_3_01TakeGradExp_3_01IndexExp_00_01SrcExp_00_01DType_01_4_01_4.html#a5d85e8234ca4674137fe3e3840a2cbf8"> 123</a></span>&#160; <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">int</span> <a class="code" href="structmshadow_1_1expr_1_1ExpInfo.html#a610f3258c19b544f4056ea78c3259eb7">kDevMask</a> = <a class="code" href="structmshadow_1_1expr_1_1ExpInfo.html">ExpInfo&lt;IndexExp&gt;::kDevMask</a>;</div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>&#160;};</div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>&#160; </div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>&#160;} <span class="comment">// namespace expr</span></div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>&#160;} <span class="comment">// namespace mshadow</span></div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>&#160; </div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>&#160;<span class="preprocessor">#endif // MSHADOW_EXTENSION_TAKE_GRAD_H_</span></div>
</div><!-- fragment --></div><!-- contents -->
<div class="ttc" id="astructmshadow_1_1expr_1_1ExpInfo_html_a610f3258c19b544f4056ea78c3259eb7"><div class="ttname"><a href="structmshadow_1_1expr_1_1ExpInfo.html#a610f3258c19b544f4056ea78c3259eb7">mshadow::expr::ExpInfo::kDevMask</a></div><div class="ttdeci">static const int kDevMask</div><div class="ttdef"><b>Definition:</b> expr_engine-inl.h:264</div></div>
<div class="ttc" id="astructmshadow_1_1expr_1_1Exp_html_adb7e4afd0baed78d66cff87de0a6621f"><div class="ttname"><a href="structmshadow_1_1expr_1_1Exp.html#adb7e4afd0baed78d66cff87de0a6621f">mshadow::expr::Exp::self</a></div><div class="ttdeci">const SubType &amp; self(void) const</div><div class="ttdef"><b>Definition:</b> expression.h:82</div></div>
<div class="ttc" id="a3rdparty_2mshadow_2mshadow_2base_8h_html_af205b8ab4d8733133d590df7d2639d69"><div class="ttname"><a href="3rdparty_2mshadow_2mshadow_2base_8h.html#af205b8ab4d8733133d590df7d2639d69">MSHADOW_XINLINE</a></div><div class="ttdeci">#define MSHADOW_XINLINE</div><div class="ttdef"><b>Definition:</b> base.h:228</div></div>
<div class="ttc" id="astructmshadow_1_1expr_1_1TakeGradExp_html"><div class="ttname"><a href="structmshadow_1_1expr_1_1TakeGradExp.html">mshadow::expr::TakeGradExp</a></div><div class="ttdoc">Calculate embedding gradient.</div><div class="ttdef"><b>Definition:</b> take_grad.h:40</div></div>
<div class="ttc" id="astructmshadow_1_1expr_1_1ShapeCheck_html"><div class="ttname"><a href="structmshadow_1_1expr_1_1ShapeCheck.html">mshadow::expr::ShapeCheck</a></div><div class="ttdoc">runtime shape checking template get the shape of an expression, report error if shape mismatch</div><div class="ttdef"><b>Definition:</b> expr_engine-inl.h:364</div></div>
<div class="ttc" id="astructmshadow_1_1expr_1_1Plan_3_01TakeGradExp_3_01IndexExp_00_01SrcExp_00_01DType_01_4_00_01DType_01_4_html_a13cd0f3144a3e88e16d2cb6c29648f17"><div class="ttname"><a href="structmshadow_1_1expr_1_1Plan_3_01TakeGradExp_3_01IndexExp_00_01SrcExp_00_01DType_01_4_00_01DType_01_4.html#a13cd0f3144a3e88e16d2cb6c29648f17">mshadow::expr::Plan&lt; TakeGradExp&lt; IndexExp, SrcExp, DType &gt;, DType &gt;::Eval</a></div><div class="ttdeci">MSHADOW_XINLINE DType Eval(index_t y, index_t x) const</div><div class="ttdef"><b>Definition:</b> take_grad.h:81</div></div>
<div class="ttc" id="astructmshadow_1_1expr_1_1ShapeCheck_html_af44e6a3b97cf3b245bc1b7ad4cacb306"><div class="ttname"><a href="structmshadow_1_1expr_1_1ShapeCheck.html#af44e6a3b97cf3b245bc1b7ad4cacb306">mshadow::expr::ShapeCheck::Check</a></div><div class="ttdeci">static Shape&lt; dim &gt; Check(const E &amp;t)</div></div>
<div class="ttc" id="astructmshadow_1_1expr_1_1TakeGradExp_html_a73ea635cf5c185db47fb2260171bc7a9"><div class="ttname"><a href="structmshadow_1_1expr_1_1TakeGradExp.html#a73ea635cf5c185db47fb2260171bc7a9">mshadow::expr::TakeGradExp::input_dim_</a></div><div class="ttdeci">const index_t input_dim_</div><div class="ttdoc">batch size</div><div class="ttdef"><b>Definition:</b> take_grad.h:47</div></div>
<div class="ttc" id="astructmshadow_1_1expr_1_1ExpInfo_html"><div class="ttname"><a href="structmshadow_1_1expr_1_1ExpInfo.html">mshadow::expr::ExpInfo</a></div><div class="ttdoc">static type inference template, used to get the dimension of each expression, if ExpInfo&lt;E&gt;::kDim == ...</div><div class="ttdef"><b>Definition:</b> expr_engine-inl.h:262</div></div>
<div class="ttc" id="anamespacemshadow_1_1expr_html_aefd008a0bf012dc8fb99d9bbcca7a078"><div class="ttname"><a href="namespacemshadow_1_1expr.html#aefd008a0bf012dc8fb99d9bbcca7a078">mshadow::expr::MakePlan</a></div><div class="ttdeci">Plan&lt; BinaryMapExp&lt; OP, TA, TB, DType, etype &gt;, DType &gt; MakePlan(const BinaryMapExp&lt; OP, TA, TB, DType, etype &gt; &amp;e)</div><div class="ttdef"><b>Definition:</b> expr_engine-inl.h:239</div></div>
<div class="ttc" id="astructmshadow_1_1expr_1_1ExpInfo_html_a0b0afc287b577f89dc3eb119c2fef778"><div class="ttname"><a href="structmshadow_1_1expr_1_1ExpInfo.html#a0b0afc287b577f89dc3eb119c2fef778">mshadow::expr::ExpInfo::kDim</a></div><div class="ttdeci">static const int kDim</div><div class="ttdef"><b>Definition:</b> expr_engine-inl.h:263</div></div>
<div class="ttc" id="astructmshadow_1_1expr_1_1ShapeCheck_3_01dim_00_01TakeGradExp_3_01IndexExp_00_01SrcExp_00_01DType_01_4_01_4_html_a01832f8db3f82b89b62c994dbf12314d"><div class="ttname"><a href="structmshadow_1_1expr_1_1ShapeCheck_3_01dim_00_01TakeGradExp_3_01IndexExp_00_01SrcExp_00_01DType_01_4_01_4.html#a01832f8db3f82b89b62c994dbf12314d">mshadow::expr::ShapeCheck&lt; dim, TakeGradExp&lt; IndexExp, SrcExp, DType &gt; &gt;::Check</a></div><div class="ttdeci">static Shape&lt; dim &gt; Check(const TakeGradExp&lt; IndexExp, SrcExp, DType &gt; &amp;t)</div><div class="ttdef"><b>Definition:</b> take_grad.h:108</div></div>
<div class="ttc" id="anamespacemshadow_html_adcbc2e1131386fccb1474b0bdf045926"><div class="ttname"><a href="namespacemshadow.html#adcbc2e1131386fccb1474b0bdf045926">mshadow::index_t</a></div><div class="ttdeci">int32_t index_t</div><div class="ttdoc">type that will be used for index</div><div class="ttdef"><b>Definition:</b> base.h:328</div></div>
<div class="ttc" id="anamespacemshadow_1_1expr_html_ae2176ac0df38fd5655ef049c1ca6467e"><div class="ttname"><a href="namespacemshadow_1_1expr.html#ae2176ac0df38fd5655ef049c1ca6467e">mshadow::expr::take_grad</a></div><div class="ttdeci">TakeGradExp&lt; IndexExp, SrcExp, DType &gt; take_grad(const Exp&lt; IndexExp, DType, e1 &gt; &amp;index, const Exp&lt; SrcExp, DType, e2 &gt; &amp;src, const index_t input_dim)</div><div class="ttdef"><b>Definition:</b> take_grad.h:59</div></div>
<div class="ttc" id="aclassmshadow_1_1expr_1_1Plan_html"><div class="ttname"><a href="classmshadow_1_1expr_1_1Plan.html">mshadow::expr::Plan</a></div><div class="ttdef"><b>Definition:</b> expr_engine-inl.h:58</div></div>
<div class="ttc" id="astructmshadow_1_1expr_1_1Exp_html"><div class="ttname"><a href="structmshadow_1_1expr_1_1Exp.html">mshadow::expr::Exp</a></div><div class="ttdoc">defines how expression exp can be evaluated and stored into dst</div><div class="ttdef"><b>Definition:</b> expression.h:79</div></div>
<div class="ttc" id="astructmshadow_1_1expr_1_1Plan_3_01TakeGradExp_3_01IndexExp_00_01SrcExp_00_01DType_01_4_00_01DType_01_4_html_a92e512833bd483c3d066f43d6cf82b59"><div class="ttname"><a href="structmshadow_1_1expr_1_1Plan_3_01TakeGradExp_3_01IndexExp_00_01SrcExp_00_01DType_01_4_00_01DType_01_4.html#a92e512833bd483c3d066f43d6cf82b59">mshadow::expr::Plan&lt; TakeGradExp&lt; IndexExp, SrcExp, DType &gt;, DType &gt;::Plan</a></div><div class="ttdeci">Plan(const TakeGradExp&lt; IndexExp, SrcExp, DType &gt; &amp;e)</div><div class="ttdef"><b>Definition:</b> take_grad.h:74</div></div>
<div class="ttc" id="anamespacemshadow_html"><div class="ttname"><a href="namespacemshadow.html">mshadow</a></div><div class="ttdoc">overloaded + operator between half_t and bf16_t</div><div class="ttdef"><b>Definition:</b> base.h:319</div></div>
<div class="ttc" id="astructmshadow_1_1expr_1_1TakeGradExp_html_a7107477e31e27194e99302908963cc14"><div class="ttname"><a href="structmshadow_1_1expr_1_1TakeGradExp.html#a7107477e31e27194e99302908963cc14">mshadow::expr::TakeGradExp::index_</a></div><div class="ttdeci">const IndexExp &amp; index_</div><div class="ttdoc">index oprand</div><div class="ttdef"><b>Definition:</b> take_grad.h:43</div></div>
<div class="ttc" id="astructmshadow_1_1Shape_html"><div class="ttname"><a href="structmshadow_1_1Shape.html">mshadow::Shape&lt; dim &gt;</a></div></div>
<div class="ttc" id="astructmshadow_1_1expr_1_1TakeGradExp_html_a30739e6bde0530de7a4d10c5d22890b3"><div class="ttname"><a href="structmshadow_1_1expr_1_1TakeGradExp.html#a30739e6bde0530de7a4d10c5d22890b3">mshadow::expr::TakeGradExp::TakeGradExp</a></div><div class="ttdeci">TakeGradExp(const IndexExp &amp;index, const SrcExp &amp;src, const index_t input_dim)</div><div class="ttdoc">constructor</div><div class="ttdef"><b>Definition:</b> take_grad.h:49</div></div>
<div class="ttc" id="astructmshadow_1_1expr_1_1TakeGradExp_html_adaed91b0d7a02931bf6d7346deae21c1"><div class="ttname"><a href="structmshadow_1_1expr_1_1TakeGradExp.html#adaed91b0d7a02931bf6d7346deae21c1">mshadow::expr::TakeGradExp::src_</a></div><div class="ttdeci">const SrcExp &amp; src_</div><div class="ttdoc">out gradient oprand</div><div class="ttdef"><b>Definition:</b> take_grad.h:45</div></div>
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