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<li class="navelem"><a class="el" href="dir_d44c64559bbebec7f509842c48db8b23.html">include</a></li><li class="navelem"><a class="el" href="dir_1143c7affb9ebd026cb6818dd282def7.html">mxnet</a></li> </ul>
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<a href="storage_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><div class="line"><a name="l00004"></a><span class="lineno"> 4</span>&#160;<span class="comment"> * distributed with this work for additional information</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span>&#160;<span class="comment"> * regarding copyright ownership. The ASF licenses this file</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span>&#160;<span class="comment"> * to you under the Apache License, Version 2.0 (the</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span>&#160;<span class="comment"> * &quot;License&quot;); you may not use this file except in compliance</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span>&#160;<span class="comment"> * with the License. You may obtain a copy of the License at</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span>&#160;<span class="comment"> * http://www.apache.org/licenses/LICENSE-2.0</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span>&#160;<span class="comment"> * Unless required by applicable law or agreed to in writing,</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span>&#160;<span class="comment"> * software distributed under the License is distributed on an</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span>&#160;<span class="comment"> * &quot;AS IS&quot; BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span>&#160;<span class="comment"> * KIND, either express or implied. See the License for the</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span>&#160;<span class="comment"> * specific language governing permissions and limitations</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160;<span class="comment"> * under the License.</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160;</div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160;<span class="preprocessor">#ifndef MXNET_STORAGE_H_</span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160;<span class="preprocessor">#define MXNET_STORAGE_H_</span></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160;</div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span>&#160;<span class="preprocessor">#include &lt;memory&gt;</span></div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="include_2mxnet_2base_8h.html">./base.h</a>&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="namespacemxnet.html">mxnet</a> {</div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span>&#160;</div><div class="line"><a name="l00035"></a><span class="lineno"><a class="line" href="classmxnet_1_1Storage.html"> 35</a></span>&#160;<span class="keyword">class </span><a class="code" href="classmxnet_1_1Storage.html">Storage</a> {</div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span>&#160; <span class="keyword">public</span>:</div><div class="line"><a name="l00040"></a><span class="lineno"><a class="line" href="structmxnet_1_1Storage_1_1Handle.html"> 40</a></span>&#160; <span class="keyword">struct </span><a class="code" href="structmxnet_1_1Storage_1_1Handle.html">Handle</a> {</div><div class="line"><a name="l00044"></a><span class="lineno"><a class="line" href="structmxnet_1_1Storage_1_1Handle.html#a428e25a6317e50c8b55307c96f8ec595"> 44</a></span>&#160; <span class="keywordtype">void</span>* <a class="code" href="structmxnet_1_1Storage_1_1Handle.html#a428e25a6317e50c8b55307c96f8ec595">dptr</a>{<span class="keyword">nullptr</span>};</div><div class="line"><a name="l00048"></a><span class="lineno"><a class="line" href="structmxnet_1_1Storage_1_1Handle.html#ab93b9db0c83e4ef3803fb587377a74a0"> 48</a></span>&#160; <span class="keywordtype">size_t</span> <a class="code" href="structmxnet_1_1Storage_1_1Handle.html#ab93b9db0c83e4ef3803fb587377a74a0">size</a>{0};</div><div class="line"><a name="l00052"></a><span class="lineno"><a class="line" href="structmxnet_1_1Storage_1_1Handle.html#ae0a4202582aa12a598f5c55ef51ad4c8"> 52</a></span>&#160; <a class="code" href="structmxnet_1_1Context.html">Context</a> <a class="code" href="structmxnet_1_1Storage_1_1Handle.html#ae0a4202582aa12a598f5c55ef51ad4c8">ctx</a>;</div><div class="line"><a name="l00056"></a><span class="lineno"><a class="line" href="structmxnet_1_1Storage_1_1Handle.html#ac92111bc6d73d7402331615506684b74"> 56</a></span>&#160; <span class="keywordtype">int</span> <a class="code" href="structmxnet_1_1Storage_1_1Handle.html#ac92111bc6d73d7402331615506684b74">shared_pid</a>{-1};</div><div class="line"><a name="l00057"></a><span class="lineno"><a class="line" href="structmxnet_1_1Storage_1_1Handle.html#ad938f8d0ddba567350ee7b3aae14b4c1"> 57</a></span>&#160; <span class="keywordtype">int</span> <a class="code" href="structmxnet_1_1Storage_1_1Handle.html#ad938f8d0ddba567350ee7b3aae14b4c1">shared_id</a>{-1};</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160; };</div><div class="line"><a name="l00065"></a><span class="lineno"><a class="line" href="classmxnet_1_1Storage.html#a8ac978f345ba93f26b11ae4331406561"> 65</a></span>&#160; <a class="code" href="structmxnet_1_1Storage_1_1Handle.html">Handle</a> <a class="code" href="classmxnet_1_1Storage.html#a8ac978f345ba93f26b11ae4331406561">Alloc</a>(<span class="keywordtype">size_t</span> <a class="code" href="structmxnet_1_1Storage_1_1Handle.html#ab93b9db0c83e4ef3803fb587377a74a0">size</a>, <a class="code" href="structmxnet_1_1Context.html">Context</a> <a class="code" href="structmxnet_1_1Storage_1_1Handle.html#ae0a4202582aa12a598f5c55ef51ad4c8">ctx</a>) {</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>&#160; <a class="code" href="structmxnet_1_1Storage_1_1Handle.html">Handle</a> hd;</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>&#160; hd.<a class="code" href="structmxnet_1_1Storage_1_1Handle.html#ab93b9db0c83e4ef3803fb587377a74a0">size</a> = <a class="code" href="structmxnet_1_1Storage_1_1Handle.html#ab93b9db0c83e4ef3803fb587377a74a0">size</a>;</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>&#160; hd.<a class="code" href="structmxnet_1_1Storage_1_1Handle.html#ae0a4202582aa12a598f5c55ef51ad4c8">ctx</a> = <a class="code" href="structmxnet_1_1Storage_1_1Handle.html#ae0a4202582aa12a598f5c55ef51ad4c8">ctx</a>;</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>&#160; this-&gt;<a class="code" href="classmxnet_1_1Storage.html#a8ac978f345ba93f26b11ae4331406561">Alloc</a>(&amp;hd);</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>&#160; <span class="keywordflow">return</span> hd;</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>&#160; }</div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>&#160; <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classmxnet_1_1Storage.html#a8ac978f345ba93f26b11ae4331406561">Alloc</a>(<a class="code" href="structmxnet_1_1Storage_1_1Handle.html">Handle</a>* handle) = 0;</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>&#160; <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classmxnet_1_1Storage.html#a3e3f3e3e3e3d867e77d0c3efd0e958b7">SharedIncrementRefCount</a>(<a class="code" href="structmxnet_1_1Storage_1_1Handle.html">Handle</a> handle) = 0;</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>&#160; <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classmxnet_1_1Storage.html#a5bdbd7b3ab712cd9e087ab007bdc64dd">Free</a>(<a class="code" href="structmxnet_1_1Storage_1_1Handle.html">Handle</a> handle) = 0;</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>&#160; <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classmxnet_1_1Storage.html#a098f8ebacd25f5203b2dc4c1796aec64">DirectFree</a>(<a class="code" href="structmxnet_1_1Storage_1_1Handle.html">Handle</a> handle) = 0;</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>&#160; <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classmxnet_1_1Storage.html#a7d2ece2d122d0bcdddf19e49d191f301">ReleaseAll</a>(<a class="code" href="structmxnet_1_1Context.html">Context</a> <a class="code" href="structmxnet_1_1Storage_1_1Handle.html#ae0a4202582aa12a598f5c55ef51ad4c8">ctx</a>) = 0;</div><div class="line"><a name="l00108"></a><span class="lineno"><a class="line" href="classmxnet_1_1Storage.html#af1e1bfea9236ccfba64344226416b04a"> 108</a></span>&#160; <span class="keyword">virtual</span> <a class="code" href="classmxnet_1_1Storage.html#af1e1bfea9236ccfba64344226416b04a">~Storage</a>() {}</div><div class="line"><a name="l00112"></a><span class="lineno"><a class="line" href="classmxnet_1_1Storage.html#ac12e7740df4520d6267d250ca16404d4"> 112</a></span>&#160; std::mutex&amp; <a class="code" href="classmxnet_1_1Storage.html#ac12e7740df4520d6267d250ca16404d4">GetMutex</a>(<a class="code" href="structmxnet_1_1Context.html#a611c227b5e04a2777c3e4507bb76f60e">Context::DeviceType</a> dev) {</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span>&#160; <span class="keywordflow">if</span> (dev == <a class="code" href="structmxnet_1_1Context.html#a611c227b5e04a2777c3e4507bb76f60ea1aced5778bb0d64d4ce6bd4c0a86d140">Context::kCPU</a>) {</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>&#160; <span class="keywordflow">return</span> cpu_mutex_;</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>&#160; } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>&#160; <span class="keywordflow">return</span> gpu_mutex_;</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; }</div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span>&#160; <span class="keyword">static</span> <a class="code" href="classmxnet_1_1Storage.html">Storage</a>* <a class="code" href="classmxnet_1_1Storage.html#a96abc072908d72d3271360a7e3e4bbc2">Get</a>();</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span>&#160; <span class="keyword">static</span> std::shared_ptr&lt;Storage&gt; <a class="code" href="classmxnet_1_1Storage.html#a4c5e9c239447ee223ab912716d53d7c7">_GetSharedRef</a>();</div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span>&#160;</div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span>&#160; <span class="keyword">private</span>:</div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span>&#160; std::mutex cpu_mutex_;</div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span>&#160; std::mutex gpu_mutex_;</div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>&#160;}; <span class="comment">// class Storage</span></div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>&#160;} <span class="comment">// namespace mxnet</span></div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span>&#160;<span class="preprocessor">#endif // MXNET_STORAGE_H_</span></div><div class="ttc" id="classmxnet_1_1Storage_html_a098f8ebacd25f5203b2dc4c1796aec64"><div class="ttname"><a href="classmxnet_1_1Storage.html#a098f8ebacd25f5203b2dc4c1796aec64">mxnet::Storage::DirectFree</a></div><div class="ttdeci">virtual void DirectFree(Handle handle)=0</div><div class="ttdoc">Free storage directly, without putting it into memory pool. This can synchronization of all previous ...</div></div>
<div class="ttc" id="classmxnet_1_1Storage_html_a4c5e9c239447ee223ab912716d53d7c7"><div class="ttname"><a href="classmxnet_1_1Storage.html#a4c5e9c239447ee223ab912716d53d7c7">mxnet::Storage::_GetSharedRef</a></div><div class="ttdeci">static std::shared_ptr&lt; Storage &gt; _GetSharedRef()</div><div class="ttdoc">Get shared pointer reference to storage singleton. Most user should not call this function...</div></div>
<div class="ttc" id="namespacemxnet_html"><div class="ttname"><a href="namespacemxnet.html">mxnet</a></div><div class="ttdoc">namespace of mxnet </div><div class="ttdef"><b>Definition:</b> api_registry.h:33</div></div>
<div class="ttc" id="classmxnet_1_1Storage_html"><div class="ttname"><a href="classmxnet_1_1Storage.html">mxnet::Storage</a></div><div class="ttdoc">Storage manager across multiple devices. </div><div class="ttdef"><b>Definition:</b> storage.h:35</div></div>
<div class="ttc" id="classmxnet_1_1Storage_html_af1e1bfea9236ccfba64344226416b04a"><div class="ttname"><a href="classmxnet_1_1Storage.html#af1e1bfea9236ccfba64344226416b04a">mxnet::Storage::~Storage</a></div><div class="ttdeci">virtual ~Storage()</div><div class="ttdoc">Destructor. </div><div class="ttdef"><b>Definition:</b> storage.h:108</div></div>
<div class="ttc" id="classmxnet_1_1Storage_html_a5bdbd7b3ab712cd9e087ab007bdc64dd"><div class="ttname"><a href="classmxnet_1_1Storage.html#a5bdbd7b3ab712cd9e087ab007bdc64dd">mxnet::Storage::Free</a></div><div class="ttdeci">virtual void Free(Handle handle)=0</div><div class="ttdoc">Free storage. </div></div>
<div class="ttc" id="structmxnet_1_1Storage_1_1Handle_html_a428e25a6317e50c8b55307c96f8ec595"><div class="ttname"><a href="structmxnet_1_1Storage_1_1Handle.html#a428e25a6317e50c8b55307c96f8ec595">mxnet::Storage::Handle::dptr</a></div><div class="ttdeci">void * dptr</div><div class="ttdoc">Pointer to the data. </div><div class="ttdef"><b>Definition:</b> storage.h:44</div></div>
<div class="ttc" id="structmxnet_1_1Storage_1_1Handle_html_ae0a4202582aa12a598f5c55ef51ad4c8"><div class="ttname"><a href="structmxnet_1_1Storage_1_1Handle.html#ae0a4202582aa12a598f5c55ef51ad4c8">mxnet::Storage::Handle::ctx</a></div><div class="ttdeci">Context ctx</div><div class="ttdoc">Context information about device and ID. </div><div class="ttdef"><b>Definition:</b> storage.h:52</div></div>
<div class="ttc" id="classmxnet_1_1Storage_html_ac12e7740df4520d6267d250ca16404d4"><div class="ttname"><a href="classmxnet_1_1Storage.html#ac12e7740df4520d6267d250ca16404d4">mxnet::Storage::GetMutex</a></div><div class="ttdeci">std::mutex &amp; GetMutex(Context::DeviceType dev)</div><div class="ttdoc">Returns mutex used by storage manager. </div><div class="ttdef"><b>Definition:</b> storage.h:112</div></div>
<div class="ttc" id="structmxnet_1_1Storage_1_1Handle_html_ad938f8d0ddba567350ee7b3aae14b4c1"><div class="ttname"><a href="structmxnet_1_1Storage_1_1Handle.html#ad938f8d0ddba567350ee7b3aae14b4c1">mxnet::Storage::Handle::shared_id</a></div><div class="ttdeci">int shared_id</div><div class="ttdef"><b>Definition:</b> storage.h:57</div></div>
<div class="ttc" id="structmxnet_1_1Context_html_a611c227b5e04a2777c3e4507bb76f60ea1aced5778bb0d64d4ce6bd4c0a86d140"><div class="ttname"><a href="structmxnet_1_1Context.html#a611c227b5e04a2777c3e4507bb76f60ea1aced5778bb0d64d4ce6bd4c0a86d140">mxnet::Context::kCPU</a></div><div class="ttdef"><b>Definition:</b> base.h:104</div></div>
<div class="ttc" id="classmxnet_1_1Storage_html_a96abc072908d72d3271360a7e3e4bbc2"><div class="ttname"><a href="classmxnet_1_1Storage.html#a96abc072908d72d3271360a7e3e4bbc2">mxnet::Storage::Get</a></div><div class="ttdeci">static Storage * Get()</div></div>
<div class="ttc" id="structmxnet_1_1Context_html_a611c227b5e04a2777c3e4507bb76f60e"><div class="ttname"><a href="structmxnet_1_1Context.html#a611c227b5e04a2777c3e4507bb76f60e">mxnet::Context::DeviceType</a></div><div class="ttdeci">DeviceType</div><div class="ttdoc">Type of device. </div><div class="ttdef"><b>Definition:</b> base.h:103</div></div>
<div class="ttc" id="structmxnet_1_1Storage_1_1Handle_html"><div class="ttname"><a href="structmxnet_1_1Storage_1_1Handle.html">mxnet::Storage::Handle</a></div><div class="ttdoc">Storage handle. </div><div class="ttdef"><b>Definition:</b> storage.h:40</div></div>
<div class="ttc" id="classmxnet_1_1Storage_html_a8ac978f345ba93f26b11ae4331406561"><div class="ttname"><a href="classmxnet_1_1Storage.html#a8ac978f345ba93f26b11ae4331406561">mxnet::Storage::Alloc</a></div><div class="ttdeci">Handle Alloc(size_t size, Context ctx)</div><div class="ttdoc">Allocate a new contiguous memory for a given size. </div><div class="ttdef"><b>Definition:</b> storage.h:65</div></div>
<div class="ttc" id="classmxnet_1_1Storage_html_a3e3f3e3e3e3d867e77d0c3efd0e958b7"><div class="ttname"><a href="classmxnet_1_1Storage.html#a3e3f3e3e3e3d867e77d0c3efd0e958b7">mxnet::Storage::SharedIncrementRefCount</a></div><div class="ttdeci">virtual void SharedIncrementRefCount(Handle handle)=0</div><div class="ttdoc">Increase ref counter on shared memory. </div></div>
<div class="ttc" id="include_2mxnet_2base_8h_html"><div class="ttname"><a href="include_2mxnet_2base_8h.html">base.h</a></div></div>
<div class="ttc" id="structmxnet_1_1Storage_1_1Handle_html_ab93b9db0c83e4ef3803fb587377a74a0"><div class="ttname"><a href="structmxnet_1_1Storage_1_1Handle.html#ab93b9db0c83e4ef3803fb587377a74a0">mxnet::Storage::Handle::size</a></div><div class="ttdeci">size_t size</div><div class="ttdoc">Size of the storage. </div><div class="ttdef"><b>Definition:</b> storage.h:48</div></div>
<div class="ttc" id="structmxnet_1_1Context_html"><div class="ttname"><a href="structmxnet_1_1Context.html">mxnet::Context</a></div><div class="ttdoc">Context information about the execution environment. </div><div class="ttdef"><b>Definition:</b> base.h:101</div></div>
<div class="ttc" id="structmxnet_1_1Storage_1_1Handle_html_ac92111bc6d73d7402331615506684b74"><div class="ttname"><a href="structmxnet_1_1Storage_1_1Handle.html#ac92111bc6d73d7402331615506684b74">mxnet::Storage::Handle::shared_pid</a></div><div class="ttdeci">int shared_pid</div><div class="ttdoc">Id for IPC shared memory. </div><div class="ttdef"><b>Definition:</b> storage.h:56</div></div>
<div class="ttc" id="classmxnet_1_1Storage_html_a7d2ece2d122d0bcdddf19e49d191f301"><div class="ttname"><a href="classmxnet_1_1Storage.html#a7d2ece2d122d0bcdddf19e49d191f301">mxnet::Storage::ReleaseAll</a></div><div class="ttdeci">virtual void ReleaseAll(Context ctx)=0</div><div class="ttdoc">Release all memory from device if using a pooled storage manager. </div></div>
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