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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_14a988756d30161f7e1f48b05d03905d.html">singa</a></li><li class="navelem"><a class="el" href="dir_0c57f5a0b2589d9cd025f1d3faf7a1ee.html">core</a></li> </ul>
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<div class="title">device.h</div> </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>&#160;</div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160;<span class="preprocessor">#ifndef SINGA_CORE_DEVICE_H_</span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span>&#160;<span class="preprocessor">#define SINGA_CORE_DEVICE_H_</span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span>&#160;</div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span>&#160;<span class="preprocessor">#include &lt;type_traits&gt;</span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160;<span class="preprocessor">#include &lt;vector&gt;</span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160;<span class="preprocessor">#include &lt;string&gt;</span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160;<span class="preprocessor">#include &lt;functional&gt;</span></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160;<span class="preprocessor">#include &lt;memory&gt;</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;singa/singa_config.h&quot;</span></div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160;<span class="preprocessor">#include &quot;singa/core/common.h&quot;</span></div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span>&#160;<span class="preprocessor">#include &quot;singa/core/memory.h&quot;</span></div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span>&#160;<span class="preprocessor">#include &quot;singa/core/scheduler.h&quot;</span></div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span>&#160;<span class="preprocessor">#include &quot;singa/proto/core.pb.h&quot;</span></div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span>&#160;</div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span>&#160;<span class="preprocessor">#ifdef USE_CUDA</span></div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span>&#160;<span class="preprocessor">#include &quot;singa/utils/cuda_utils.h&quot;</span></div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span>&#160;<span class="preprocessor">#endif // USE_CUDA</span></div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span>&#160;</div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span>&#160;<span class="preprocessor">#ifdef USE_OPENCL</span></div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span>&#160;<span class="preprocessor">#include &quot;singa/utils/opencl_utils.h&quot;</span></div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span>&#160;<span class="preprocessor">#endif // USE_OPENCL</span></div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span>&#160;</div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span>&#160;<span class="preprocessor">#ifdef USE_MKLDNN</span></div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span>&#160;<span class="preprocessor">#include &quot;singa/utils/mkldnn_utils.h&quot;</span></div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160;<span class="preprocessor">#endif // USE_MKLDNN</span></div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span>&#160;</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160;<span class="keyword">using</span> std::vector;</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160;<span class="keyword">using</span> std::string;</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>&#160;<span class="keyword">using</span> std::function;</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>&#160;<span class="keyword">using</span> std::shared_ptr;</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>&#160;</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>&#160;<span class="keyword">namespace </span><a class="code" href="namespacesinga.html">singa</a> {</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160;</div><div class="line"><a name="l00056"></a><span class="lineno"><a class="line" href="classsinga_1_1Device.html"> 56</a></span>&#160;<span class="keyword">class </span><a class="code" href="classsinga_1_1Device.html">Device</a> {</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160; <span class="keyword">public</span>:</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160; <span class="comment">// Device() = default;</span></div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160; <span class="keyword">virtual</span> ~<a class="code" href="classsinga_1_1Device.html">Device</a>() {}</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160; <a class="code" href="classsinga_1_1Device.html">Device</a>(<span class="keywordtype">int</span> <span class="keywordtype">id</span>, <span class="keywordtype">int</span> num_executors);</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160;</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>&#160; <span class="keyword">virtual</span> <span class="keywordtype">void</span> SetRandSeed(<span class="keywordtype">unsigned</span> seed) = 0;</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>&#160;</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>&#160; <a class="code" href="classsinga_1_1Block.html">Block</a>* <a class="code" href="classsinga_1_1Device.html#acdcaf51aa6aa3cd574531b309688dd99">NewBlock</a>(<span class="keywordtype">int</span> size);</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>&#160;</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>&#160; <span class="keywordtype">void</span> <a class="code" href="classsinga_1_1Device.html#ad2a3aaebf33c373739fcf77124332bfc">FreeBlock</a>(<a class="code" href="classsinga_1_1Block.html">Block</a>* block);</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>&#160;</div><div class="line"><a name="l00074"></a><span class="lineno"><a class="line" href="classsinga_1_1Device.html#acf3169a7059287389466a408f9d68dc1"> 74</a></span>&#160; <span class="keyword">virtual</span> <span class="keywordtype">size_t</span> <a class="code" href="classsinga_1_1Device.html#acf3169a7059287389466a408f9d68dc1">GetAllocatedMem</a>() {</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>&#160; <span class="keywordflow">return</span> 0u;</div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>&#160; }</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>&#160;</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>&#160; <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classsinga_1_1Device.html#a84f17d9301ae2ad082322cdc0ad265f7">CopyDataToFrom</a>(<a class="code" href="classsinga_1_1Block.html">Block</a>* dst, <a class="code" href="classsinga_1_1Block.html">Block</a>* src, <span class="keywordtype">size_t</span> nBytes,</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>&#160; CopyDirection direction, <span class="keywordtype">int</span> dst_offset, <span class="keywordtype">int</span> src_offset);</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>&#160;</div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span>&#160; <span class="keywordtype">void</span> CopyDataFromHostPtr(<a class="code" href="classsinga_1_1Block.html">Block</a>* dst, <span class="keyword">const</span> <span class="keywordtype">void</span>* src, <span class="keywordtype">size_t</span> nBytes,</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>&#160; <span class="keywordtype">size_t</span> dst_offset = 0);</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>&#160; <span class="keywordtype">void</span> <a class="code" href="classsinga_1_1Device.html#a13db259bad7b0b92ffeb7f661dcd9144">Exec</a>(<span class="keyword">function</span>&lt;<span class="keywordtype">void</span>(<a class="code" href="structsinga_1_1__Context.html">Context</a>*)&gt;&amp;&amp; fn, <span class="keyword">const</span> vector&lt;Block*&gt; read_blocks,</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>&#160; <span class="keyword">const</span> vector&lt;Block*&gt; write_blocks,</div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>&#160; <span class="keywordtype">bool</span> use_rand_generator = <span class="keyword">false</span>);</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>&#160;</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>&#160; <span class="comment">// Wait for one event.</span></div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>&#160; <span class="comment">// void WaitFor();</span></div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>&#160;</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>&#160; <span class="keywordtype">void</span> <a class="code" href="classsinga_1_1Device.html#a61744e09ab97eeeb8b822bd9adc930db">Sync</a>();</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>&#160;</div><div class="line"><a name="l00097"></a><span class="lineno"><a class="line" href="classsinga_1_1Device.html#a6db2e92a308783e243eed58bc106edb9"> 97</a></span>&#160; LangType <a class="code" href="classsinga_1_1Device.html#a6db2e92a308783e243eed58bc106edb9">lang</a>()<span class="keyword"> const </span>{</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>&#160; <span class="keywordflow">return</span> <a class="code" href="classsinga_1_1Device.html#a6401c02a3f4a96994f37ed3312cacb45">lang_</a>;</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span>&#160; }</div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>&#160;</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>&#160; <span class="keyword">virtual</span> std::shared_ptr&lt;Device&gt; host()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code" href="classsinga_1_1Device.html#a3d27f7538aabe42e9eea3f10cf702148">host_</a>;}</div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>&#160;</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>&#160; <a class="code" href="structsinga_1_1__Context.html">Context</a>* context(<span class="keywordtype">int</span> k) {</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>&#160; <span class="keywordflow">return</span> &amp;ctx_;</div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>&#160; }</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>&#160;</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>&#160; <span class="keywordtype">int</span> id()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> id_; }</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>&#160;</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span>&#160; <span class="keyword">private</span>:</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>&#160; <a class="code" href="classsinga_1_1Device.html">Device</a>() {};</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>&#160;</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>&#160; <span class="keyword">protected</span>:</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>&#160; <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classsinga_1_1Device.html#acd15581a3f7e5c9cf5f5d7502f163c81">DoExec</a>(<span class="keyword">function</span>&lt;<span class="keywordtype">void</span>(<a class="code" href="structsinga_1_1__Context.html">Context</a>*)&gt;&amp;&amp; fn, <span class="keywordtype">int</span> executor) = 0;</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>&#160;</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>&#160; <span class="keyword">virtual</span> <span class="keywordtype">void</span> CopyToFrom(<span class="keywordtype">void</span>* dst, <span class="keyword">const</span> <span class="keywordtype">void</span>* src, <span class="keywordtype">size_t</span> nBytes,</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>&#160; CopyDirection direction, <a class="code" href="structsinga_1_1__Context.html">Context</a>* ctx) = 0;</div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>&#160;</div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>&#160; <span class="keyword">virtual</span> <span class="keywordtype">void</span>* <a class="code" href="classsinga_1_1Device.html#af0bcace0d0f33db28b7a49300a2aedf3">Malloc</a>(<span class="keywordtype">int</span> size) = 0;</div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span>&#160;</div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span>&#160; <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classsinga_1_1Device.html#a0795c72763fe4097355b870e6b95b8c3">Free</a>(<span class="keywordtype">void</span>* ptr) = 0;</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; <span class="keyword">protected</span>:</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span>&#160; <span class="keywordtype">int</span> id_ = 0;</div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span>&#160; <span class="keywordtype">int</span> num_executors_ = 0;</div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span>&#160; <span class="keywordtype">unsigned</span> seed_ = 0;</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>&#160; <span class="comment">// Scheduler* scheduler_ = nullptr;</span></div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>&#160; <span class="comment">// VirtualMemory* vm_ = nullptr;</span></div><div class="line"><a name="l00132"></a><span class="lineno"><a class="line" href="classsinga_1_1Device.html#a6401c02a3f4a96994f37ed3312cacb45"> 132</a></span>&#160;<span class="comment"></span> LangType <a class="code" href="classsinga_1_1Device.html#a6401c02a3f4a96994f37ed3312cacb45">lang_</a>;</div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span>&#160; <span class="comment">// SafeQueue&lt;Operation&gt; op_queue_;</span></div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span>&#160; <span class="comment">// SafeQueue&lt;Operation&gt; op_log_;</span></div><div class="line"><a name="l00136"></a><span class="lineno"><a class="line" href="classsinga_1_1Device.html#a3d27f7538aabe42e9eea3f10cf702148"> 136</a></span>&#160;<span class="comment"></span> std::shared_ptr&lt;Device&gt; <a class="code" href="classsinga_1_1Device.html#a3d27f7538aabe42e9eea3f10cf702148">host_</a>;</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>&#160; <span class="comment">// TODO(wangwei) define multiple contexts, one per executor</span></div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span>&#160; <a class="code" href="structsinga_1_1__Context.html">Context</a> ctx_;</div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span>&#160;};</div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span>&#160;</div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span>&#160;<span class="keyword">extern</span> std::shared_ptr&lt;Device&gt; <a class="code" href="namespacesinga.html#af5fd1cb4e1a4b5ae9bba1377b034eb8d">defaultDevice</a>;</div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span>&#160;</div><div class="line"><a name="l00146"></a><span class="lineno"><a class="line" href="classsinga_1_1CppCPU.html"> 146</a></span>&#160;<span class="keyword">class </span><a class="code" href="classsinga_1_1CppCPU.html">CppCPU</a> : <span class="keyword">public</span> <a class="code" href="classsinga_1_1Device.html">Device</a> {</div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>&#160; <span class="keyword">public</span>:</div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span>&#160; ~<a class="code" href="classsinga_1_1CppCPU.html">CppCPU</a>();</div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span>&#160; <a class="code" href="classsinga_1_1CppCPU.html">CppCPU</a>();</div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span>&#160;</div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span>&#160; std::shared_ptr&lt;Device&gt; host()<span class="keyword"> const override </span>{ <span class="keywordflow">return</span> <a class="code" href="namespacesinga.html#af5fd1cb4e1a4b5ae9bba1377b034eb8d">defaultDevice</a>;}</div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span>&#160; <span class="keywordtype">void</span> SetRandSeed(<span class="keywordtype">unsigned</span> seed) <span class="keyword">override</span>;</div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span>&#160;</div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span>&#160; <span class="keyword">protected</span>:</div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span>&#160; <span class="keywordtype">void</span> <a class="code" href="classsinga_1_1Device.html#acd15581a3f7e5c9cf5f5d7502f163c81">DoExec</a>(<span class="keyword">function</span>&lt;<span class="keywordtype">void</span>(<a class="code" href="structsinga_1_1__Context.html">Context</a>*)&gt;&amp;&amp; fn, <span class="keywordtype">int</span> executor) <span class="keyword">override</span>;</div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span>&#160;</div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span>&#160; <span class="keywordtype">void</span> CopyToFrom(<span class="keywordtype">void</span>* dst, <span class="keyword">const</span> <span class="keywordtype">void</span>* src, <span class="keywordtype">size_t</span> nBytes,</div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>&#160; CopyDirection direction, <a class="code" href="structsinga_1_1__Context.html">Context</a>* ctx) <span class="keyword">override</span>;</div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span>&#160;</div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span>&#160; <span class="keywordtype">void</span>* <a class="code" href="classsinga_1_1Device.html#af0bcace0d0f33db28b7a49300a2aedf3">Malloc</a>(<span class="keywordtype">int</span> size) <span class="keyword">override</span>;</div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span>&#160;</div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span>&#160; <span class="keywordtype">void</span> <a class="code" href="classsinga_1_1Device.html#a0795c72763fe4097355b870e6b95b8c3">Free</a>(<span class="keywordtype">void</span>* ptr) <span class="keyword">override</span>;</div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span>&#160;};</div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span>&#160;</div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span>&#160;</div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span>&#160;<span class="comment">// Implement Device using OpenCL libs.</span></div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span>&#160;<span class="comment">// class OpenclDevice : public Device { };</span></div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span>&#160;</div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span>&#160;<span class="preprocessor">#ifdef USE_CUDA</span></div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span>&#160;<span class="comment">// Represent a Nvidia GPU which runs cuda code.</span></div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span>&#160;<span class="keyword">class </span>CudaGPU : <span class="keyword">public</span> <a class="code" href="classsinga_1_1Device.html">Device</a> {</div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span>&#160; <span class="keyword">public</span>:</div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span>&#160; ~CudaGPU();</div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span>&#160; CudaGPU(<span class="keywordtype">int</span> <span class="keywordtype">id</span> = 0);</div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span>&#160; CudaGPU(<span class="keywordtype">int</span> <span class="keywordtype">id</span>, std::shared_ptr&lt;DeviceMemPool&gt; pool);</div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span>&#160;</div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span>&#160; <span class="keywordtype">void</span> SetRandSeed(<span class="keywordtype">unsigned</span> seed) <span class="keyword">override</span>;</div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span>&#160; <span class="keywordtype">size_t</span> <a class="code" href="classsinga_1_1Device.html#acf3169a7059287389466a408f9d68dc1">GetAllocatedMem</a>() <span class="keyword">override</span>;</div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span>&#160;</div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span>&#160; <span class="keyword">protected</span>:</div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span>&#160; <span class="keywordtype">void</span> <a class="code" href="classsinga_1_1Device.html#acd15581a3f7e5c9cf5f5d7502f163c81">DoExec</a>(<span class="keyword">function</span>&lt;<span class="keywordtype">void</span>(<a class="code" href="structsinga_1_1__Context.html">Context</a>*)&gt;&amp;&amp; fn, <span class="keywordtype">int</span> executor) <span class="keyword">override</span>;</div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span>&#160;</div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span>&#160; <span class="keywordtype">void</span> CopyToFrom(<span class="keywordtype">void</span>* dst, <span class="keyword">const</span> <span class="keywordtype">void</span>* src, <span class="keywordtype">size_t</span> nBytes,</div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span>&#160; CopyDirection direction, <a class="code" href="structsinga_1_1__Context.html">Context</a>* ctx) <span class="keyword">override</span>;</div><div class="line"><a name="l00189"></a><span class="lineno"> 189</span>&#160;</div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span>&#160; <span class="keywordtype">void</span>* <a class="code" href="classsinga_1_1Device.html#af0bcace0d0f33db28b7a49300a2aedf3">Malloc</a>(<span class="keywordtype">int</span> size) <span class="keyword">override</span>;</div><div class="line"><a name="l00192"></a><span class="lineno"> 192</span>&#160;</div><div class="line"><a name="l00194"></a><span class="lineno"> 194</span>&#160; <span class="keywordtype">void</span> <a class="code" href="classsinga_1_1Device.html#a0795c72763fe4097355b870e6b95b8c3">Free</a>(<span class="keywordtype">void</span>* ptr) <span class="keyword">override</span>;</div><div class="line"><a name="l00195"></a><span class="lineno"> 195</span>&#160;</div><div class="line"><a name="l00196"></a><span class="lineno"> 196</span>&#160; <span class="keyword">private</span>:</div><div class="line"><a name="l00197"></a><span class="lineno"> 197</span>&#160; <span class="keywordtype">void</span> Setup();</div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span>&#160;</div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span>&#160; <span class="keyword">private</span>:</div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span>&#160; shared_ptr&lt;DeviceMemPool&gt; pool_;</div><div class="line"><a name="l00201"></a><span class="lineno"> 201</span>&#160;};</div><div class="line"><a name="l00202"></a><span class="lineno"> 202</span>&#160;</div><div class="line"><a name="l00204"></a><span class="lineno"> 204</span>&#160;</div><div class="line"><a name="l00205"></a><span class="lineno"> 205</span>&#160;<span class="preprocessor">#endif // USE_CUDA</span></div><div class="line"><a name="l00206"></a><span class="lineno"> 206</span>&#160;</div><div class="line"><a name="l00207"></a><span class="lineno"> 207</span>&#160;<span class="preprocessor">#ifdef USE_OPENCL</span></div><div class="line"><a name="l00208"></a><span class="lineno"> 208</span>&#160;</div><div class="line"><a name="l00209"></a><span class="lineno"> 209</span>&#160;<span class="comment">// Implement Device using OpenCL libs.</span></div><div class="line"><a name="l00210"></a><span class="lineno"> 210</span>&#160;<span class="keyword">class </span>OpenclDevice : <span class="keyword">public</span> <a class="code" href="classsinga_1_1Device.html">singa::Device</a> {</div><div class="line"><a name="l00211"></a><span class="lineno"> 211</span>&#160;<span class="keyword">public</span>:</div><div class="line"><a name="l00212"></a><span class="lineno"> 212</span>&#160;</div><div class="line"><a name="l00213"></a><span class="lineno"> 213</span>&#160; <span class="comment">// TODO: Constructor arguments to consider:</span></div><div class="line"><a name="l00214"></a><span class="lineno"> 214</span>&#160; <span class="comment">// Path to kernel sources?</span></div><div class="line"><a name="l00215"></a><span class="lineno"> 215</span>&#160; <span class="comment">// Select only certain device types?</span></div><div class="line"><a name="l00216"></a><span class="lineno"> 216</span>&#160; OpenclDevice(<span class="keywordtype">int</span> <span class="keywordtype">id</span> = 0, <span class="keywordtype">int</span> num_executors = 1);</div><div class="line"><a name="l00217"></a><span class="lineno"> 217</span>&#160; ~OpenclDevice();</div><div class="line"><a name="l00218"></a><span class="lineno"> 218</span>&#160;</div><div class="line"><a name="l00219"></a><span class="lineno"> 219</span>&#160;<span class="comment">// Overridden, inherited methods</span></div><div class="line"><a name="l00220"></a><span class="lineno"> 220</span>&#160; <span class="keywordtype">void</span> SetRandSeed(<span class="keywordtype">unsigned</span> seed) <span class="keyword">override</span>;</div><div class="line"><a name="l00221"></a><span class="lineno"> 221</span>&#160;</div><div class="line"><a name="l00222"></a><span class="lineno"> 222</span>&#160; <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classsinga_1_1Device.html#a84f17d9301ae2ad082322cdc0ad265f7">CopyDataToFrom</a>(<a class="code" href="classsinga_1_1Block.html">Block</a>* dst, <a class="code" href="classsinga_1_1Block.html">Block</a>* src, <span class="keywordtype">size_t</span> nBytes,</div><div class="line"><a name="l00223"></a><span class="lineno"> 223</span>&#160; CopyDirection direction, <span class="keywordtype">int</span> dst_offset = 0,</div><div class="line"><a name="l00224"></a><span class="lineno"> 224</span>&#160; <span class="keywordtype">int</span> src_offset = 0) <span class="keyword">override</span>;</div><div class="line"><a name="l00225"></a><span class="lineno"> 225</span>&#160;</div><div class="line"><a name="l00226"></a><span class="lineno"> 226</span>&#160;<span class="keyword">protected</span>:</div><div class="line"><a name="l00230"></a><span class="lineno"> 230</span>&#160; viennacl::ocl::device this_device;</div><div class="line"><a name="l00231"></a><span class="lineno"> 231</span>&#160;</div><div class="line"><a name="l00234"></a><span class="lineno"> 234</span>&#160; viennacl::ocl::context vcl_ctx;</div><div class="line"><a name="l00235"></a><span class="lineno"> 235</span>&#160;</div><div class="line"><a name="l00238"></a><span class="lineno"> 238</span>&#160; <span class="keywordtype">void</span> BuildPrograms();</div><div class="line"><a name="l00239"></a><span class="lineno"> 239</span>&#160;</div><div class="line"><a name="l00240"></a><span class="lineno"> 240</span>&#160;<span class="comment">// Overridden, inherited methods.</span></div><div class="line"><a name="l00241"></a><span class="lineno"> 241</span>&#160;</div><div class="line"><a name="l00242"></a><span class="lineno"> 242</span>&#160; <span class="keywordtype">void</span> <a class="code" href="classsinga_1_1Device.html#acd15581a3f7e5c9cf5f5d7502f163c81">DoExec</a>(<span class="keyword">function</span>&lt;<span class="keywordtype">void</span>(<a class="code" href="structsinga_1_1__Context.html">Context</a>*)&gt;&amp;&amp; fn, <span class="keywordtype">int</span> executor) <span class="keyword">override</span>;</div><div class="line"><a name="l00243"></a><span class="lineno"> 243</span>&#160;</div><div class="line"><a name="l00244"></a><span class="lineno"> 244</span>&#160; <span class="keywordtype">void</span> CopyToFrom(<span class="keywordtype">void</span>* dst, <span class="keyword">const</span> <span class="keywordtype">void</span>* src, <span class="keywordtype">size_t</span> nBytes,</div><div class="line"><a name="l00245"></a><span class="lineno"> 245</span>&#160; CopyDirection direction, <a class="code" href="structsinga_1_1__Context.html">Context</a>* ctx = <span class="keyword">nullptr</span>) <span class="keyword">override</span>;</div><div class="line"><a name="l00246"></a><span class="lineno"> 246</span>&#160;</div><div class="line"><a name="l00250"></a><span class="lineno"> 250</span>&#160; <span class="keywordtype">void</span>* <a class="code" href="classsinga_1_1Device.html#af0bcace0d0f33db28b7a49300a2aedf3">Malloc</a>(<span class="keywordtype">int</span> size) <span class="keyword">override</span>;</div><div class="line"><a name="l00251"></a><span class="lineno"> 251</span>&#160;</div><div class="line"><a name="l00254"></a><span class="lineno"> 254</span>&#160; <span class="keywordtype">void</span> <a class="code" href="classsinga_1_1Device.html#a0795c72763fe4097355b870e6b95b8c3">Free</a>(<span class="keywordtype">void</span>* ptr) <span class="keyword">override</span>;</div><div class="line"><a name="l00255"></a><span class="lineno"> 255</span>&#160;</div><div class="line"><a name="l00256"></a><span class="lineno"> 256</span>&#160;<span class="keyword">private</span>:</div><div class="line"><a name="l00257"></a><span class="lineno"> 257</span>&#160;</div><div class="line"><a name="l00258"></a><span class="lineno"> 258</span>&#160; <span class="keyword">static</span> <span class="keyword">const</span> std::string cl_src_path;</div><div class="line"><a name="l00259"></a><span class="lineno"> 259</span>&#160;};</div><div class="line"><a name="l00260"></a><span class="lineno"> 260</span>&#160;<span class="preprocessor">#endif // USE_OPENCL</span></div><div class="line"><a name="l00261"></a><span class="lineno"> 261</span>&#160;</div><div class="line"><a name="l00267"></a><span class="lineno"><a class="line" href="classsinga_1_1Platform.html"> 267</a></span>&#160;<span class="keyword">class </span><a class="code" href="classsinga_1_1Platform.html">Platform</a> {</div><div class="line"><a name="l00268"></a><span class="lineno"> 268</span>&#160;<span class="keyword">public</span>:</div><div class="line"><a name="l00269"></a><span class="lineno"> 269</span>&#160;</div><div class="line"><a name="l00271"></a><span class="lineno"><a class="line" href="classsinga_1_1Platform.html#a316ed276df691fd5d9482243254082ed"> 271</a></span>&#160; <span class="keyword">static</span> std::shared_ptr&lt;Device&gt; <a class="code" href="classsinga_1_1Platform.html#a316ed276df691fd5d9482243254082ed">GetDefaultDevice</a>() {</div><div class="line"><a name="l00272"></a><span class="lineno"> 272</span>&#160; <span class="keywordflow">return</span> <a class="code" href="namespacesinga.html#af5fd1cb4e1a4b5ae9bba1377b034eb8d">defaultDevice</a>;</div><div class="line"><a name="l00273"></a><span class="lineno"> 273</span>&#160; }</div><div class="line"><a name="l00274"></a><span class="lineno"> 274</span>&#160;</div><div class="line"><a name="l00275"></a><span class="lineno"> 275</span>&#160;<span class="preprocessor">#ifdef USE_CUDA</span></div><div class="line"><a name="l00276"></a><span class="lineno"> 276</span>&#160; <span class="keyword">static</span> <span class="keywordtype">int</span> GetNumGPUs();</div><div class="line"><a name="l00278"></a><span class="lineno"> 278</span>&#160;</div><div class="line"><a name="l00281"></a><span class="lineno"> 281</span>&#160; <span class="keyword">static</span> <span class="keyword">const</span> std::vector&lt;int&gt; GetGPUIDs();</div><div class="line"><a name="l00282"></a><span class="lineno"> 282</span>&#160;</div><div class="line"><a name="l00283"></a><span class="lineno"> 283</span>&#160; <span class="keyword">static</span> <span class="keyword">const</span> std::pair&lt;size_t, size_t&gt; GetGPUMemSize(<span class="keyword">const</span> <span class="keywordtype">int</span> device);</div><div class="line"><a name="l00284"></a><span class="lineno"> 284</span>&#160;</div><div class="line"><a name="l00286"></a><span class="lineno"> 286</span>&#160; <span class="keyword">static</span> <span class="keyword">const</span> std::vector&lt;std::pair&lt;size_t, size_t&gt;&gt; GetGPUMemSize();</div><div class="line"><a name="l00287"></a><span class="lineno"> 287</span>&#160;</div><div class="line"><a name="l00289"></a><span class="lineno"> 289</span>&#160; <span class="keyword">static</span> <span class="keyword">const</span> std::string DeviceQuery(<span class="keywordtype">int</span> <span class="keywordtype">id</span>, <span class="keywordtype">bool</span> verbose = <span class="keyword">false</span>);</div><div class="line"><a name="l00290"></a><span class="lineno"> 290</span>&#160;</div><div class="line"><a name="l00292"></a><span class="lineno"> 292</span>&#160; <span class="keyword">static</span> <span class="keyword">const</span> std::vector&lt;std::shared_ptr&lt;Device&gt;&gt;</div><div class="line"><a name="l00293"></a><span class="lineno"> 293</span>&#160; CreateCudaGPUs(<span class="keyword">const</span> <span class="keywordtype">size_t</span> num_devices, <span class="keywordtype">size_t</span> init_size = 0);</div><div class="line"><a name="l00294"></a><span class="lineno"> 294</span>&#160;</div><div class="line"><a name="l00296"></a><span class="lineno"> 296</span>&#160; <span class="keyword">static</span> <span class="keyword">const</span> std::vector&lt;std::shared_ptr&lt;Device&gt;&gt;</div><div class="line"><a name="l00297"></a><span class="lineno"> 297</span>&#160; CreateCudaGPUsOn(<span class="keyword">const</span> std::vector&lt;int&gt; &amp;devices, <span class="keywordtype">size_t</span> init_size = 0);</div><div class="line"><a name="l00298"></a><span class="lineno"> 298</span>&#160; </div><div class="line"><a name="l00313"></a><span class="lineno"> 313</span>&#160; <span class="keyword">static</span> <span class="keywordtype">bool</span> CheckDevice(<span class="keyword">const</span> <span class="keywordtype">int</span> device_id);</div><div class="line"><a name="l00314"></a><span class="lineno"> 314</span>&#160;<span class="preprocessor">#endif // USE_CUDA</span></div><div class="line"><a name="l00315"></a><span class="lineno"> 315</span>&#160;</div><div class="line"><a name="l00316"></a><span class="lineno"> 316</span>&#160;<span class="preprocessor">#ifdef USE_OPENCL</span></div><div class="line"><a name="l00317"></a><span class="lineno"> 317</span>&#160;</div><div class="line"><a name="l00318"></a><span class="lineno"> 318</span>&#160; <span class="keyword">const</span> <span class="keywordtype">int</span> GetNumOpenclPlatforms();</div><div class="line"><a name="l00319"></a><span class="lineno"> 319</span>&#160; </div><div class="line"><a name="l00320"></a><span class="lineno"> 320</span>&#160; <span class="keyword">const</span> <span class="keywordtype">int</span> GetNumOpenclDevices();</div><div class="line"><a name="l00321"></a><span class="lineno"> 321</span>&#160; </div><div class="line"><a name="l00322"></a><span class="lineno"> 322</span>&#160; <span class="keyword">static</span> <span class="keyword">const</span> std::shared_ptr&lt;Device&gt; GetDefaultOpenclDevice();</div><div class="line"><a name="l00323"></a><span class="lineno"> 323</span>&#160;</div><div class="line"><a name="l00328"></a><span class="lineno"> 328</span>&#160;<span class="comment">// static const std::vector&lt;std::shared_ptr&lt;Device&gt;&gt;</span></div><div class="line"><a name="l00329"></a><span class="lineno"> 329</span>&#160;<span class="comment">// CreateOpenclDevices(const size_t num_devices);</span></div><div class="line"><a name="l00330"></a><span class="lineno"> 330</span>&#160;</div><div class="line"><a name="l00336"></a><span class="lineno"> 336</span>&#160;<span class="comment">// const std::vector&lt;std::shared_ptr&lt;Device&gt;&gt;</span></div><div class="line"><a name="l00337"></a><span class="lineno"> 337</span>&#160;<span class="comment">// CreateOpenclDevices(const vector&lt;int&gt; &amp;id);</span></div><div class="line"><a name="l00338"></a><span class="lineno"> 338</span>&#160;<span class="preprocessor">#endif // USE_OPENCL</span></div><div class="line"><a name="l00339"></a><span class="lineno"> 339</span>&#160;</div><div class="line"><a name="l00340"></a><span class="lineno"> 340</span>&#160;};</div><div class="line"><a name="l00341"></a><span class="lineno"> 341</span>&#160;</div><div class="line"><a name="l00342"></a><span class="lineno"> 342</span>&#160;</div><div class="line"><a name="l00343"></a><span class="lineno"> 343</span>&#160;} <span class="comment">// namespace singa</span></div><div class="line"><a name="l00344"></a><span class="lineno"> 344</span>&#160;</div><div class="line"><a name="l00345"></a><span class="lineno"> 345</span>&#160;<span class="preprocessor">#endif // SINGA_CORE_DEVICE_H_</span></div><div class="ttc" id="classsinga_1_1Device_html_ad2a3aaebf33c373739fcf77124332bfc"><div class="ttname"><a href="classsinga_1_1Device.html#ad2a3aaebf33c373739fcf77124332bfc">singa::Device::FreeBlock</a></div><div class="ttdeci">void FreeBlock(Block *block)</div><div class="ttdoc">Called by Tensor. </div></div>
<div class="ttc" id="classsinga_1_1Device_html_acf3169a7059287389466a408f9d68dc1"><div class="ttname"><a href="classsinga_1_1Device.html#acf3169a7059287389466a408f9d68dc1">singa::Device::GetAllocatedMem</a></div><div class="ttdeci">virtual size_t GetAllocatedMem()</div><div class="ttdoc">Return the size (bytes) of memory in use TODO(wangwei) override this function for all devices...</div><div class="ttdef"><b>Definition:</b> device.h:74</div></div>
<div class="ttc" id="classsinga_1_1Device_html_af0bcace0d0f33db28b7a49300a2aedf3"><div class="ttname"><a href="classsinga_1_1Device.html#af0bcace0d0f33db28b7a49300a2aedf3">singa::Device::Malloc</a></div><div class="ttdeci">virtual void * Malloc(int size)=0</div><div class="ttdoc">Allocate device memory. </div></div>
<div class="ttc" id="classsinga_1_1Device_html_a61744e09ab97eeeb8b822bd9adc930db"><div class="ttname"><a href="classsinga_1_1Device.html#a61744e09ab97eeeb8b822bd9adc930db">singa::Device::Sync</a></div><div class="ttdeci">void Sync()</div><div class="ttdoc">wait for all operations submitted to this device. </div></div>
<div class="ttc" id="classsinga_1_1Platform_html"><div class="ttname"><a href="classsinga_1_1Platform.html">singa::Platform</a></div><div class="ttdoc">This class queries all available calculating devices on a given machine grouped according to manufact...</div><div class="ttdef"><b>Definition:</b> device.h:267</div></div>
<div class="ttc" id="classsinga_1_1CppCPU_html"><div class="ttname"><a href="classsinga_1_1CppCPU.html">singa::CppCPU</a></div><div class="ttdoc">Represent a CPU device which may have multiple threads/executors. </div><div class="ttdef"><b>Definition:</b> device.h:146</div></div>
<div class="ttc" id="classsinga_1_1Device_html_a6401c02a3f4a96994f37ed3312cacb45"><div class="ttname"><a href="classsinga_1_1Device.html#a6401c02a3f4a96994f37ed3312cacb45">singa::Device::lang_</a></div><div class="ttdeci">LangType lang_</div><div class="ttdoc">Programming language type, could be kCpp, kCuda, kOpencl. </div><div class="ttdef"><b>Definition:</b> device.h:132</div></div>
<div class="ttc" id="classsinga_1_1Device_html_acd15581a3f7e5c9cf5f5d7502f163c81"><div class="ttname"><a href="classsinga_1_1Device.html#acd15581a3f7e5c9cf5f5d7502f163c81">singa::Device::DoExec</a></div><div class="ttdeci">virtual void DoExec(function&lt; void(Context *)&gt; &amp;&amp;fn, int executor)=0</div><div class="ttdoc">Execute one operation on one executor. </div></div>
<div class="ttc" id="classsinga_1_1Device_html_a84f17d9301ae2ad082322cdc0ad265f7"><div class="ttname"><a href="classsinga_1_1Device.html#a84f17d9301ae2ad082322cdc0ad265f7">singa::Device::CopyDataToFrom</a></div><div class="ttdeci">virtual void CopyDataToFrom(Block *dst, Block *src, size_t nBytes, CopyDirection direction, int dst_offset, int src_offset)</div><div class="ttdoc">Copy data within or across devices. </div></div>
<div class="ttc" id="structsinga_1_1__Context_html"><div class="ttname"><a href="structsinga_1_1__Context.html">singa::_Context</a></div><div class="ttdef"><b>Definition:</b> common.h:102</div></div>
<div class="ttc" id="classsinga_1_1Device_html_a13db259bad7b0b92ffeb7f661dcd9144"><div class="ttname"><a href="classsinga_1_1Device.html#a13db259bad7b0b92ffeb7f661dcd9144">singa::Device::Exec</a></div><div class="ttdeci">void Exec(function&lt; void(Context *)&gt; &amp;&amp;fn, const vector&lt; Block *&gt; read_blocks, const vector&lt; Block *&gt; write_blocks, bool use_rand_generator=false)</div><div class="ttdoc">Submit the operation to the device, which may execute it right now or delay it depending on the sched...</div></div>
<div class="ttc" id="classsinga_1_1Device_html"><div class="ttname"><a href="classsinga_1_1Device.html">singa::Device</a></div><div class="ttdoc">Allocate memory and execute Tensor operations. </div><div class="ttdef"><b>Definition:</b> device.h:56</div></div>
<div class="ttc" id="namespacesinga_html_af5fd1cb4e1a4b5ae9bba1377b034eb8d"><div class="ttname"><a href="namespacesinga.html#af5fd1cb4e1a4b5ae9bba1377b034eb8d">singa::defaultDevice</a></div><div class="ttdeci">std::shared_ptr&lt; Device &gt; defaultDevice</div><div class="ttdoc">a singleton CppDevice as the host for all devices. </div></div>
<div class="ttc" id="classsinga_1_1Device_html_acdcaf51aa6aa3cd574531b309688dd99"><div class="ttname"><a href="classsinga_1_1Device.html#acdcaf51aa6aa3cd574531b309688dd99">singa::Device::NewBlock</a></div><div class="ttdeci">Block * NewBlock(int size)</div><div class="ttdoc">Called by Tensor. </div></div>
<div class="ttc" id="classsinga_1_1Platform_html_a316ed276df691fd5d9482243254082ed"><div class="ttname"><a href="classsinga_1_1Platform.html#a316ed276df691fd5d9482243254082ed">singa::Platform::GetDefaultDevice</a></div><div class="ttdeci">static std::shared_ptr&lt; Device &gt; GetDefaultDevice()</div><div class="ttdoc">Return the default host device. </div><div class="ttdef"><b>Definition:</b> device.h:271</div></div>
<div class="ttc" id="classsinga_1_1Device_html_a3d27f7538aabe42e9eea3f10cf702148"><div class="ttname"><a href="classsinga_1_1Device.html#a3d27f7538aabe42e9eea3f10cf702148">singa::Device::host_</a></div><div class="ttdeci">std::shared_ptr&lt; Device &gt; host_</div><div class="ttdoc">The host device. </div><div class="ttdef"><b>Definition:</b> device.h:136</div></div>
<div class="ttc" id="classsinga_1_1Block_html"><div class="ttname"><a href="classsinga_1_1Block.html">singa::Block</a></div><div class="ttdoc">Block represent a chunk of memory (on device or host). </div><div class="ttdef"><b>Definition:</b> common.h:60</div></div>
<div class="ttc" id="classsinga_1_1Device_html_a6db2e92a308783e243eed58bc106edb9"><div class="ttname"><a href="classsinga_1_1Device.html#a6db2e92a308783e243eed58bc106edb9">singa::Device::lang</a></div><div class="ttdeci">LangType lang() const</div><div class="ttdoc">Return the programming language for this device. </div><div class="ttdef"><b>Definition:</b> device.h:97</div></div>
<div class="ttc" id="namespacesinga_html"><div class="ttname"><a href="namespacesinga.html">singa</a></div><div class="ttdoc">Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements...</div><div class="ttdef"><b>Definition:</b> common.h:48</div></div>
<div class="ttc" id="classsinga_1_1Device_html_a0795c72763fe4097355b870e6b95b8c3"><div class="ttname"><a href="classsinga_1_1Device.html#a0795c72763fe4097355b870e6b95b8c3">singa::Device::Free</a></div><div class="ttdeci">virtual void Free(void *ptr)=0</div><div class="ttdoc">Free device memory. </div></div>
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