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<div class="title">cuda_flow_builder.hpp</div> </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="preprocessor">#pragma once</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> </div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="preprocessor">#include "cuda_task.hpp"</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> </div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="keyword">namespace </span><a class="code" href="namespacetf.html">tf</a> {</div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> </div><div class="line"><a name="l00012"></a><span class="lineno"><a class="line" href="classtf_1_1cudaFlow.html"> 12</a></span> <span class="keyword">class </span><a class="code" href="classtf_1_1cudaFlow.html">cudaFlow</a> {</div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> </div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span>  </div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span>  <a class="code" href="classtf_1_1cudaFlow.html#a8e17934efb9e502acc8491b49d9bdf7b">cudaFlow</a>(cudaGraph& graph);</div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> </div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  <span class="keywordtype">bool</span> <a class="code" href="classtf_1_1cudaFlow.html#a1926f45a038d8faa9c1b1ee43fd29a93">empty</a>() <span class="keyword">const</span>;</div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  </div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  <a class="code" href="classtf_1_1cudaTask.html">cudaTask</a> <a class="code" href="classtf_1_1cudaFlow.html#a2d6b4cce389086ee6fe8e169c547d83a">placeholder</a>();</div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> </div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <a class="code" href="classtf_1_1cudaTask.html">cudaTask</a> <a class="code" href="classtf_1_1cudaFlow.html#a30b2e107cb2c90a37f467b28d1b42a74">noop</a>();</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  </div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> F, <span class="keyword">typename</span>... ArgsT></div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <a class="code" href="classtf_1_1cudaTask.html">cudaTask</a> <a class="code" href="classtf_1_1cudaFlow.html#adb731be71bdd436dfb5e36e6213a9a17">kernel</a>(dim3 g, dim3 b, <span class="keywordtype">size_t</span> s, F&& f, ArgsT&&... args);</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  </div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="keyword">template</span> <</div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="keyword">typename</span> T, </div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  std::enable_if_t<!std::is_same<T, void>::value, <span class="keywordtype">void</span>>* = <span class="keyword">nullptr</span></div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  ></div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <a class="code" href="classtf_1_1cudaTask.html">cudaTask</a> <a class="code" href="classtf_1_1cudaFlow.html#a0f36d1b7eb0bc77deb83966b394bd1d7">copy</a>(T* tgt, T* src, <span class="keywordtype">size_t</span> num);</div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span> </div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <span class="keyword">private</span>:</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span> </div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  cudaGraph& _graph;</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span> };</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span> </div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span> <span class="comment">// Constructor</span></div><div class="line"><a name="l00089"></a><span class="lineno"><a class="line" href="classtf_1_1cudaFlow.html#a8e17934efb9e502acc8491b49d9bdf7b"> 89</a></span> <span class="keyword">inline</span> <a class="code" href="classtf_1_1cudaFlow.html#a8e17934efb9e502acc8491b49d9bdf7b">cudaFlow::cudaFlow</a>(cudaGraph& g) : _graph {g} {</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span> }</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span> </div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span> <span class="comment">// Function: empty</span></div><div class="line"><a name="l00093"></a><span class="lineno"><a class="line" href="classtf_1_1cudaFlow.html#a1926f45a038d8faa9c1b1ee43fd29a93"> 93</a></span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code" href="classtf_1_1cudaFlow.html#a1926f45a038d8faa9c1b1ee43fd29a93">cudaFlow::empty</a>()<span class="keyword"> const </span>{</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="keywordflow">return</span> _graph._nodes.empty();</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span> }</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span> </div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span> <span class="comment">// Function: noop</span></div><div class="line"><a name="l00098"></a><span class="lineno"><a class="line" href="classtf_1_1cudaFlow.html#a30b2e107cb2c90a37f467b28d1b42a74"> 98</a></span> <span class="keyword">inline</span> <a class="code" href="classtf_1_1cudaTask.html">cudaTask</a> <a class="code" href="classtf_1_1cudaFlow.html#a30b2e107cb2c90a37f467b28d1b42a74">cudaFlow::noop</a>() {</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <span class="keyword">auto</span> node = _graph.emplace_back();</div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  node->_handle.emplace<cudaNode::Noop>();</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  TF_CHECK_CUDA(</div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  ::cudaGraphAddEmptyNode(&node->_node, _graph._handle, <span class="keyword">nullptr</span>, 0),</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <span class="stringliteral">"failed to create a no-operation (empty) node"</span></div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  );</div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="keywordflow">return</span> <a class="code" href="classtf_1_1cudaTask.html">cudaTask</a>(node);</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span> }</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span> </div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span> <span class="comment">// Function: kernel</span></div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span> <span class="keyword">template</span> <<span class="keyword">typename</span> F, <span class="keyword">typename</span>... ArgsT></div><div class="line"><a name="l00110"></a><span class="lineno"><a class="line" href="classtf_1_1cudaFlow.html#adb731be71bdd436dfb5e36e6213a9a17"> 110</a></span> <a class="code" href="classtf_1_1cudaTask.html">cudaTask</a> <a class="code" href="classtf_1_1cudaFlow.html#adb731be71bdd436dfb5e36e6213a9a17">cudaFlow::kernel</a>(</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  dim3 grid, dim3 block, <span class="keywordtype">size_t</span> shm, F&& func, ArgsT&&... args</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span> ) {</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  </div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <span class="keyword">using</span> traits = function_traits<F>;</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span> </div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  static_assert(traits::arity == <span class="keyword">sizeof</span>...(ArgsT), <span class="stringliteral">"arity mismatches"</span>);</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span> </div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <span class="keywordtype">void</span>* arguments[<span class="keyword">sizeof</span>...(ArgsT)] = { (<span class="keywordtype">void</span>*)(&args)... };</div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span> </div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="keyword">auto</span> node = _graph.emplace_back();</div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span> </div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="keyword">auto</span>& p = node->_handle.emplace<cudaNode::Kernel>().param;</div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span> </div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  p.func = (<span class="keywordtype">void</span>*)func;</div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  p.gridDim = grid;</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  p.blockDim = block;</div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  p.sharedMemBytes = shm;</div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  p.kernelParams = arguments;</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  p.extra = <span class="keyword">nullptr</span>;</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  </div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  TF_CHECK_CUDA(</div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  ::cudaGraphAddKernelNode(&node->_node, _graph._handle, <span class="keyword">nullptr</span>, 0, &p),</div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <span class="stringliteral">"failed to create a cudaKernel node"</span></div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  );</div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  </div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <span class="keywordflow">return</span> <a class="code" href="classtf_1_1cudaTask.html">cudaTask</a>(node);</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span> }</div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span> </div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span> <span class="comment">// Function: copy</span></div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span> <span class="keyword">template</span> <</div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <span class="keyword">typename</span> T,</div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  std::enable_if_t<!std::is_same<T, void>::value, <span class="keywordtype">void</span>>*</div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span> ></div><div class="line"><a name="l00144"></a><span class="lineno"><a class="line" href="classtf_1_1cudaFlow.html#a0f36d1b7eb0bc77deb83966b394bd1d7"> 144</a></span> <a class="code" href="classtf_1_1cudaTask.html">cudaTask</a> <a class="code" href="classtf_1_1cudaFlow.html#a0f36d1b7eb0bc77deb83966b394bd1d7">cudaFlow::copy</a>(T* tgt, T* src, <span class="keywordtype">size_t</span> num) {</div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span> </div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="keyword">using</span> U = std::decay_t<T>;</div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span> </div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <span class="keyword">auto</span> node = _graph.emplace_back();</div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="keyword">auto</span>& p = node->_handle.emplace<cudaNode::Copy>().param;</div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span> </div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  p.srcArray = <span class="keyword">nullptr</span>;</div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  p.srcPos = ::make_cudaPos(0, 0, 0);</div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  p.srcPtr = ::make_cudaPitchedPtr(src, num*<span class="keyword">sizeof</span>(U), num, 1);</div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  p.dstArray = <span class="keyword">nullptr</span>;</div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  p.dstPos = ::make_cudaPos(0, 0, 0);</div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  p.dstPtr = ::make_cudaPitchedPtr(tgt, num*<span class="keyword">sizeof</span>(U), num, 1);</div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  p.extent = ::make_cudaExtent(num*<span class="keyword">sizeof</span>(U), 1, 1);</div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  p.kind = cudaMemcpyDefault;</div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span> </div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  TF_CHECK_CUDA(</div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  cudaGraphAddMemcpyNode(&node->_node, _graph._handle, <span class="keyword">nullptr</span>, 0, &p),</div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="stringliteral">"failed to create a cudaCopy node"</span></div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  );</div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span> </div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  <span class="keywordflow">return</span> <a class="code" href="classtf_1_1cudaTask.html">cudaTask</a>(node);</div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span> }</div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span> </div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span> } <span class="comment">// end of namespace tf -----------------------------------------------------</span></div><div class="ttc" id="classtf_1_1cudaFlow_html_a8e17934efb9e502acc8491b49d9bdf7b"><div class="ttname"><a href="classtf_1_1cudaFlow.html#a8e17934efb9e502acc8491b49d9bdf7b">tf::cudaFlow::cudaFlow</a></div><div class="ttdeci">cudaFlow(cudaGraph &graph)</div><div class="ttdoc">constructs a cudaFlow builder object </div><div class="ttdef"><b>Definition:</b> cuda_flow_builder.hpp:89</div></div>
<div class="ttc" id="namespacetf_html"><div class="ttname"><a href="namespacetf.html">tf</a></div><div class="ttdef"><b>Definition:</b> error.hpp:9</div></div>
<div class="ttc" id="classtf_1_1cudaFlow_html_a1926f45a038d8faa9c1b1ee43fd29a93"><div class="ttname"><a href="classtf_1_1cudaFlow.html#a1926f45a038d8faa9c1b1ee43fd29a93">tf::cudaFlow::empty</a></div><div class="ttdeci">bool empty() const</div><div class="ttdoc">queries the emptiness of the graph </div><div class="ttdef"><b>Definition:</b> cuda_flow_builder.hpp:93</div></div>
<div class="ttc" id="classtf_1_1cudaFlow_html"><div class="ttname"><a href="classtf_1_1cudaFlow.html">tf::cudaFlow</a></div><div class="ttdoc">Building methods of a cuda task dependency graph. </div><div class="ttdef"><b>Definition:</b> cuda_flow_builder.hpp:12</div></div>
<div class="ttc" id="classtf_1_1cudaFlow_html_a30b2e107cb2c90a37f467b28d1b42a74"><div class="ttname"><a href="classtf_1_1cudaFlow.html#a30b2e107cb2c90a37f467b28d1b42a74">tf::cudaFlow::noop</a></div><div class="ttdeci">cudaTask noop()</div><div class="ttdoc">creates a no-operation task </div><div class="ttdef"><b>Definition:</b> cuda_flow_builder.hpp:98</div></div>
<div class="ttc" id="classtf_1_1cudaFlow_html_adb731be71bdd436dfb5e36e6213a9a17"><div class="ttname"><a href="classtf_1_1cudaFlow.html#adb731be71bdd436dfb5e36e6213a9a17">tf::cudaFlow::kernel</a></div><div class="ttdeci">cudaTask kernel(dim3 g, dim3 b, size_t s, F &&f, ArgsT &&... args)</div><div class="ttdoc">creates a kernel task </div><div class="ttdef"><b>Definition:</b> cuda_flow_builder.hpp:110</div></div>
<div class="ttc" id="classtf_1_1cudaFlow_html_a0f36d1b7eb0bc77deb83966b394bd1d7"><div class="ttname"><a href="classtf_1_1cudaFlow.html#a0f36d1b7eb0bc77deb83966b394bd1d7">tf::cudaFlow::copy</a></div><div class="ttdeci">cudaTask copy(T *tgt, T *src, size_t num)</div><div class="ttdoc">creates an 1D copy task </div><div class="ttdef"><b>Definition:</b> cuda_flow_builder.hpp:144</div></div>
<div class="ttc" id="classtf_1_1cudaFlow_html_a2d6b4cce389086ee6fe8e169c547d83a"><div class="ttname"><a href="classtf_1_1cudaFlow.html#a2d6b4cce389086ee6fe8e169c547d83a">tf::cudaFlow::placeholder</a></div><div class="ttdeci">cudaTask placeholder()</div><div class="ttdoc">creates a placeholder task </div></div>
<div class="ttc" id="classtf_1_1cudaTask_html"><div class="ttname"><a href="classtf_1_1cudaTask.html">tf::cudaTask</a></div><div class="ttdoc">handle to a node in a cudaGraph </div><div class="ttdef"><b>Definition:</b> cuda_task.hpp:20</div></div>
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