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<li class="navelem"><a class="el" href="namespacemxnet.html">mxnet</a></li><li class="navelem"><a class="el" href="namespacemxnet_1_1cpp.html">cpp</a></li><li class="navelem"><a class="el" href="classmxnet_1_1cpp_1_1Executor.html">Executor</a></li> </ul>
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<a href="#pub-methods">Public Member Functions</a> &#124;
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<a href="classmxnet_1_1cpp_1_1Executor-members.html">List of all members</a> </div>
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<div class="title">mxnet::cpp::Executor Class Reference</div> </div>
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<p><a class="el" href="classmxnet_1_1cpp_1_1Executor.html" title="Executor interface.">Executor</a> interface.
<a href="classmxnet_1_1cpp_1_1Executor.html#details">More...</a></p>
<p><code>#include &lt;<a class="el" href="cpp-package_2include_2mxnet-cpp_2executor_8h_source.html">executor.h</a>&gt;</code></p>
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<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:a86cd99024edf91d7554f28c5e128dc7e"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classmxnet_1_1cpp_1_1Executor.html#a86cd99024edf91d7554f28c5e128dc7e">Executor</a> (const <a class="el" href="classmxnet_1_1cpp_1_1Symbol.html">Symbol</a> &amp;symbol, <a class="el" href="classmxnet_1_1cpp_1_1Context.html">Context</a> context, const std::vector&lt; <a class="el" href="classmxnet_1_1cpp_1_1NDArray.html">NDArray</a> &gt; &amp;<a class="el" href="classmxnet_1_1cpp_1_1Executor.html#a13d04b04cfafce126946be071549ace9">arg_arrays</a>, const std::vector&lt; <a class="el" href="classmxnet_1_1cpp_1_1NDArray.html">NDArray</a> &gt; &amp;<a class="el" href="classmxnet_1_1cpp_1_1Executor.html#a42694f583467b2b517ea8f8c0250655b">grad_arrays</a>, const std::vector&lt; <a class="el" href="namespacemxnet_1_1cpp.html#ae1e49a337d45c7071defefda2ec91845">OpReqType</a> &gt; &amp;grad_reqs, const std::vector&lt; <a class="el" href="classmxnet_1_1cpp_1_1NDArray.html">NDArray</a> &gt; &amp;<a class="el" href="classmxnet_1_1cpp_1_1Executor.html#a11cc4c29bb7d5f859e9bbb4bc0df51ab">aux_arrays</a>, const std::map&lt; std::string, <a class="el" href="classmxnet_1_1cpp_1_1Context.html">Context</a> &gt; &amp;group_to_ctx=std::map&lt; std::string, <a class="el" href="classmxnet_1_1cpp_1_1Context.html">Context</a> &gt;(), <a class="el" href="classmxnet_1_1cpp_1_1Executor.html">Executor</a> *shared_exec=nullptr)</td></tr>
<tr class="separator:a86cd99024edf91d7554f28c5e128dc7e"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a78c73fba32cdd68ac76389813158af1d"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classmxnet_1_1cpp_1_1Executor.html#a78c73fba32cdd68ac76389813158af1d">Executor</a> (const <a class="el" href="include_2mxnet_2c__api_8h.html#aac4a2be6e40b0869bcc390a573a7e489">CachedOpHandle</a> &amp;h)</td></tr>
<tr class="separator:a78c73fba32cdd68ac76389813158af1d"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a1fef41367238aaf8315fe5715a9f8f47"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classmxnet_1_1cpp_1_1Executor.html#a1fef41367238aaf8315fe5715a9f8f47">Forward</a> (bool is_train)</td></tr>
<tr class="memdesc:a1fef41367238aaf8315fe5715a9f8f47"><td class="mdescLeft">&#160;</td><td class="mdescRight">Perform a Forward operation of <a class="el" href="classmxnet_1_1cpp_1_1Operator.html" title="Operator interface.">Operator</a> After this operation, user can get the result by using function head. <a href="classmxnet_1_1cpp_1_1Executor.html#a1fef41367238aaf8315fe5715a9f8f47">More...</a><br /></td></tr>
<tr class="separator:a1fef41367238aaf8315fe5715a9f8f47"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:abd98fc4f87cd8adea049a31a840898e4"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classmxnet_1_1cpp_1_1Executor.html#abd98fc4f87cd8adea049a31a840898e4">Backward</a> (const std::vector&lt; <a class="el" href="classmxnet_1_1cpp_1_1NDArray.html">NDArray</a> &gt; &amp;head_grads=std::vector&lt; <a class="el" href="classmxnet_1_1cpp_1_1NDArray.html">NDArray</a> &gt;())</td></tr>
<tr class="memdesc:abd98fc4f87cd8adea049a31a840898e4"><td class="mdescLeft">&#160;</td><td class="mdescRight">Perform a Backward operation of the <a class="el" href="classmxnet_1_1cpp_1_1Operator.html" title="Operator interface.">Operator</a>. This must be called after Forward. After this operation, NDArrays specified by grad_in_args_store will be updated accordingly. User is allowed to pass in an empty <a class="el" href="classmxnet_1_1Array.html" title="Array container of NodeRef in DSL graph. Array implements copy on write semantics,...">Array</a> if the head node is loss function and head gradeitn is not needed. <a href="classmxnet_1_1cpp_1_1Executor.html#abd98fc4f87cd8adea049a31a840898e4">More...</a><br /></td></tr>
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<tr class="memitem:aa4e594bc8b840f03c148aa84c472cb99"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classmxnet_1_1cpp_1_1Executor.html#aa4e594bc8b840f03c148aa84c472cb99">Reshape</a> ()</td></tr>
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<tr class="memitem:ad6a26ffaabff769ee829221ef47e29e6"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classmxnet_1_1cpp_1_1Executor.html#ad6a26ffaabff769ee829221ef47e29e6">~Executor</a> ()</td></tr>
<tr class="memdesc:ad6a26ffaabff769ee829221ef47e29e6"><td class="mdescLeft">&#160;</td><td class="mdescRight">destructor, free the handle <a href="classmxnet_1_1cpp_1_1Executor.html#ad6a26ffaabff769ee829221ef47e29e6">More...</a><br /></td></tr>
<tr class="separator:ad6a26ffaabff769ee829221ef47e29e6"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a942ef73436ecb2bcfde588e004037963"><td class="memItemLeft" align="right" valign="top">std::map&lt; std::string, <a class="el" href="classmxnet_1_1cpp_1_1NDArray.html">NDArray</a> &gt;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classmxnet_1_1cpp_1_1Executor.html#a942ef73436ecb2bcfde588e004037963">arg_dict</a> ()</td></tr>
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<tr class="memitem:a4ca4e8a5517ac2a35824adda6c80f872"><td class="memItemLeft" align="right" valign="top">std::map&lt; std::string, <a class="el" href="classmxnet_1_1cpp_1_1NDArray.html">NDArray</a> &gt;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classmxnet_1_1cpp_1_1Executor.html#a4ca4e8a5517ac2a35824adda6c80f872">grad_dict</a> ()</td></tr>
<tr class="separator:a4ca4e8a5517ac2a35824adda6c80f872"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a6c6ef2d2f79c26fd0bad949243f7a37a"><td class="memItemLeft" align="right" valign="top">std::map&lt; std::string, <a class="el" href="classmxnet_1_1cpp_1_1NDArray.html">NDArray</a> &gt;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classmxnet_1_1cpp_1_1Executor.html#a6c6ef2d2f79c26fd0bad949243f7a37a">aux_dict</a> ()</td></tr>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-attribs"></a>
Public Attributes</h2></td></tr>
<tr class="memitem:a13d04b04cfafce126946be071549ace9"><td class="memItemLeft" align="right" valign="top">std::vector&lt; <a class="el" href="classmxnet_1_1cpp_1_1NDArray.html">NDArray</a> &gt;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classmxnet_1_1cpp_1_1Executor.html#a13d04b04cfafce126946be071549ace9">arg_arrays</a></td></tr>
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<tr class="memitem:a42694f583467b2b517ea8f8c0250655b"><td class="memItemLeft" align="right" valign="top">std::vector&lt; <a class="el" href="classmxnet_1_1cpp_1_1NDArray.html">NDArray</a> &gt;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classmxnet_1_1cpp_1_1Executor.html#a42694f583467b2b517ea8f8c0250655b">grad_arrays</a></td></tr>
<tr class="separator:a42694f583467b2b517ea8f8c0250655b"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a11cc4c29bb7d5f859e9bbb4bc0df51ab"><td class="memItemLeft" align="right" valign="top">std::vector&lt; <a class="el" href="classmxnet_1_1cpp_1_1NDArray.html">NDArray</a> &gt;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classmxnet_1_1cpp_1_1Executor.html#a11cc4c29bb7d5f859e9bbb4bc0df51ab">aux_arrays</a></td></tr>
<tr class="separator:a11cc4c29bb7d5f859e9bbb4bc0df51ab"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a323bae1c2e05e9ab5437845a71d3c1b6"><td class="memItemLeft" align="right" valign="top">std::vector&lt; <a class="el" href="classmxnet_1_1cpp_1_1NDArray.html">NDArray</a> &gt;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classmxnet_1_1cpp_1_1Executor.html#a323bae1c2e05e9ab5437845a71d3c1b6">combined_arrays</a></td></tr>
<tr class="separator:a323bae1c2e05e9ab5437845a71d3c1b6"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a052f7e89167c76f68af0ebb74b90845a"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classmxnet_1_1cpp_1_1Executor.html#a052f7e89167c76f68af0ebb74b90845a">device_type</a></td></tr>
<tr class="separator:a052f7e89167c76f68af0ebb74b90845a"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:abf83aa2e83d149a1b2c861bd33cb4d4e"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classmxnet_1_1cpp_1_1Executor.html#abf83aa2e83d149a1b2c861bd33cb4d4e">device_id</a></td></tr>
<tr class="separator:abf83aa2e83d149a1b2c861bd33cb4d4e"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a1aa4f05bce177a4f50a327c96c9894ce"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classmxnet_1_1cpp_1_1Executor.html#a1aa4f05bce177a4f50a327c96c9894ce">require_grad</a></td></tr>
<tr class="separator:a1aa4f05bce177a4f50a327c96c9894ce"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ac8da23a16e33e0e75a44f803cd3b7933"><td class="memItemLeft" align="right" valign="top">std::vector&lt; <a class="el" href="classmxnet_1_1cpp_1_1NDArray.html">NDArray</a> &gt;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classmxnet_1_1cpp_1_1Executor.html#ac8da23a16e33e0e75a44f803cd3b7933">outputs</a></td></tr>
<tr class="memdesc:ac8da23a16e33e0e75a44f803cd3b7933"><td class="mdescLeft">&#160;</td><td class="mdescRight">arrays store the outputs of forward <a href="classmxnet_1_1cpp_1_1Executor.html#ac8da23a16e33e0e75a44f803cd3b7933">More...</a><br /></td></tr>
<tr class="separator:ac8da23a16e33e0e75a44f803cd3b7933"><td class="memSeparator" colspan="2">&#160;</td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p><a class="el" href="classmxnet_1_1cpp_1_1Executor.html" title="Executor interface.">Executor</a> interface. </p>
</div><h2 class="groupheader">Constructor &amp; Destructor Documentation</h2>
<a id="a86cd99024edf91d7554f28c5e128dc7e"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a86cd99024edf91d7554f28c5e128dc7e">&#9670;&nbsp;</a></span>Executor() <span class="overload">[1/2]</span></h2>
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<td class="memname">mxnet::cpp::Executor::Executor </td>
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<td class="paramtype">const <a class="el" href="classmxnet_1_1cpp_1_1Symbol.html">Symbol</a> &amp;&#160;</td>
<td class="paramname"><em>symbol</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype"><a class="el" href="classmxnet_1_1cpp_1_1Context.html">Context</a>&#160;</td>
<td class="paramname"><em>context</em>, </td>
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<td class="paramtype">const std::vector&lt; <a class="el" href="classmxnet_1_1cpp_1_1NDArray.html">NDArray</a> &gt; &amp;&#160;</td>
<td class="paramname"><em>arg_arrays</em>, </td>
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<td class="paramtype">const std::vector&lt; <a class="el" href="classmxnet_1_1cpp_1_1NDArray.html">NDArray</a> &gt; &amp;&#160;</td>
<td class="paramname"><em>grad_arrays</em>, </td>
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<td class="paramtype">const std::vector&lt; <a class="el" href="namespacemxnet_1_1cpp.html#ae1e49a337d45c7071defefda2ec91845">OpReqType</a> &gt; &amp;&#160;</td>
<td class="paramname"><em>grad_reqs</em>, </td>
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<td class="paramtype">const std::vector&lt; <a class="el" href="classmxnet_1_1cpp_1_1NDArray.html">NDArray</a> &gt; &amp;&#160;</td>
<td class="paramname"><em>aux_arrays</em>, </td>
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<td class="paramtype">const std::map&lt; std::string, <a class="el" href="classmxnet_1_1cpp_1_1Context.html">Context</a> &gt; &amp;&#160;</td>
<td class="paramname"><em>group_to_ctx</em> = <code>std::map&lt;&#160;std::string,&#160;<a class="el" href="classmxnet_1_1cpp_1_1Context.html">Context</a>&#160;&gt;()</code>, </td>
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<td class="paramtype"><a class="el" href="classmxnet_1_1cpp_1_1Executor.html">Executor</a> *&#160;</td>
<td class="paramname"><em>shared_exec</em> = <code>nullptr</code>&#160;</td>
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<td>)</td>
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<h2 class="memtitle"><span class="permalink"><a href="#a78c73fba32cdd68ac76389813158af1d">&#9670;&nbsp;</a></span>Executor() <span class="overload">[2/2]</span></h2>
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<td class="memname">mxnet::cpp::Executor::Executor </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="include_2mxnet_2c__api_8h.html#aac4a2be6e40b0869bcc390a573a7e489">CachedOpHandle</a> &amp;&#160;</td>
<td class="paramname"><em>h</em></td><td>)</td>
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<h2 class="memtitle"><span class="permalink"><a href="#ad6a26ffaabff769ee829221ef47e29e6">&#9670;&nbsp;</a></span>~Executor()</h2>
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<td class="memname">mxnet::cpp::Executor::~Executor </td>
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<p>destructor, free the handle </p>
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<h2 class="groupheader">Member Function Documentation</h2>
<a id="a942ef73436ecb2bcfde588e004037963"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a942ef73436ecb2bcfde588e004037963">&#9670;&nbsp;</a></span>arg_dict()</h2>
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<td class="memname">std::map&lt;std::string, <a class="el" href="classmxnet_1_1cpp_1_1NDArray.html">NDArray</a>&gt; mxnet::cpp::Executor::arg_dict </td>
<td>(</td>
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<h2 class="memtitle"><span class="permalink"><a href="#a6c6ef2d2f79c26fd0bad949243f7a37a">&#9670;&nbsp;</a></span>aux_dict()</h2>
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<td class="memname">std::map&lt;std::string, <a class="el" href="classmxnet_1_1cpp_1_1NDArray.html">NDArray</a>&gt; mxnet::cpp::Executor::aux_dict </td>
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<h2 class="memtitle"><span class="permalink"><a href="#abd98fc4f87cd8adea049a31a840898e4">&#9670;&nbsp;</a></span>Backward()</h2>
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<td class="memname">void mxnet::cpp::Executor::Backward </td>
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<p>Perform a Backward operation of the <a class="el" href="classmxnet_1_1cpp_1_1Operator.html" title="Operator interface.">Operator</a>. This must be called after Forward. After this operation, NDArrays specified by grad_in_args_store will be updated accordingly. User is allowed to pass in an empty <a class="el" href="classmxnet_1_1Array.html" title="Array container of NodeRef in DSL graph. Array implements copy on write semantics,...">Array</a> if the head node is loss function and head gradeitn is not needed. </p>
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<tr><td class="paramname">head_grads</td><td>the gradient of head nodes to be backproped. </td></tr>
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<h2 class="memtitle"><span class="permalink"><a href="#a1fef41367238aaf8315fe5715a9f8f47">&#9670;&nbsp;</a></span>Forward()</h2>
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<td class="memname">void mxnet::cpp::Executor::Forward </td>
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<p>Perform a Forward operation of <a class="el" href="classmxnet_1_1cpp_1_1Operator.html" title="Operator interface.">Operator</a> After this operation, user can get the result by using function head. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a4ca4e8a5517ac2a35824adda6c80f872">&#9670;&nbsp;</a></span>grad_dict()</h2>
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<td class="memname">std::map&lt;std::string, <a class="el" href="classmxnet_1_1cpp_1_1NDArray.html">NDArray</a>&gt; mxnet::cpp::Executor::grad_dict </td>
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<h2 class="memtitle"><span class="permalink"><a href="#aa4e594bc8b840f03c148aa84c472cb99">&#9670;&nbsp;</a></span>Reshape()</h2>
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<td class="memname">void mxnet::cpp::Executor::Reshape </td>
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<h2 class="groupheader">Member Data Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#a13d04b04cfafce126946be071549ace9">&#9670;&nbsp;</a></span>arg_arrays</h2>
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<td class="memname">std::vector&lt;<a class="el" href="classmxnet_1_1cpp_1_1NDArray.html">NDArray</a>&gt; mxnet::cpp::Executor::arg_arrays</td>
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<h2 class="memtitle"><span class="permalink"><a href="#a11cc4c29bb7d5f859e9bbb4bc0df51ab">&#9670;&nbsp;</a></span>aux_arrays</h2>
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<td class="memname">std::vector&lt;<a class="el" href="classmxnet_1_1cpp_1_1NDArray.html">NDArray</a>&gt; mxnet::cpp::Executor::aux_arrays</td>
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<h2 class="memtitle"><span class="permalink"><a href="#a323bae1c2e05e9ab5437845a71d3c1b6">&#9670;&nbsp;</a></span>combined_arrays</h2>
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<td class="memname">std::vector&lt;<a class="el" href="classmxnet_1_1cpp_1_1NDArray.html">NDArray</a>&gt; mxnet::cpp::Executor::combined_arrays</td>
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<h2 class="memtitle"><span class="permalink"><a href="#abf83aa2e83d149a1b2c861bd33cb4d4e">&#9670;&nbsp;</a></span>device_id</h2>
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<td class="memname">int mxnet::cpp::Executor::device_id</td>
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<h2 class="memtitle"><span class="permalink"><a href="#a052f7e89167c76f68af0ebb74b90845a">&#9670;&nbsp;</a></span>device_type</h2>
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<td class="memname">int mxnet::cpp::Executor::device_type</td>
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<h2 class="memtitle"><span class="permalink"><a href="#a42694f583467b2b517ea8f8c0250655b">&#9670;&nbsp;</a></span>grad_arrays</h2>
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<td class="memname">std::vector&lt;<a class="el" href="classmxnet_1_1cpp_1_1NDArray.html">NDArray</a>&gt; mxnet::cpp::Executor::grad_arrays</td>
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<h2 class="memtitle"><span class="permalink"><a href="#ac8da23a16e33e0e75a44f803cd3b7933">&#9670;&nbsp;</a></span>outputs</h2>
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<td class="memname">std::vector&lt;<a class="el" href="classmxnet_1_1cpp_1_1NDArray.html">NDArray</a>&gt; mxnet::cpp::Executor::outputs</td>
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<p>arrays store the outputs of forward </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a1aa4f05bce177a4f50a327c96c9894ce">&#9670;&nbsp;</a></span>require_grad</h2>
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<td class="memname">bool mxnet::cpp::Executor::require_grad</td>
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<hr/>The documentation for this class was generated from the following file:<ul>
<li>/work/mxnet/cpp-package/include/mxnet-cpp/<a class="el" href="cpp-package_2include_2mxnet-cpp_2executor_8h_source.html">executor.h</a></li>
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