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<a href="batched__reduction_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> <span class="comment">/***************************************************************************************************</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">* Copyright (c) 2017-2019, NVIDIA CORPORATION. All rights reserved.</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">*</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">* Redistribution and use in source and binary forms, with or without modification, are permitted</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">* provided that the following conditions are met:</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">* * Redistributions of source code must retain the above copyright notice, this list of</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">* conditions and the following disclaimer.</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment">* * Redistributions in binary form must reproduce the above copyright notice, this list of</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">* conditions and the following disclaimer in the documentation and/or other materials</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment">* provided with the distribution.</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment">* * Neither the name of the NVIDIA CORPORATION nor the names of its contributors may be used</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment">* to endorse or promote products derived from this software without specific prior written</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment">* permission.</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment">*</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment">* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment">* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment">* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL NVIDIA CORPORATION BE LIABLE</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment">* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment">* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;</span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment">* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,</span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment">* STRICT LIABILITY, OR TOR (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE</span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment">* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.</span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment">*</span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment">**************************************************************************************************/</span></div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#pragma once</span></div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> </div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor">#if !defined(__CUDACC_RTC__)</span></div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor">#include <cuda.h></span></div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> </div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="preprocessor">#include "<a class="code" href="coord_8h.html">cutlass/coord.h</a>"</span></div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="preprocessor">#include "cutlass/util/platform.h"</span></div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="preprocessor">#include "cutlass/fragment.h"</span></div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> </div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="keyword">namespace </span><a class="code" href="namespacecutlass.html">cutlass</a> {</div><div class="line"><a name="l00040"></a><span class="lineno"><a class="line" href="namespacecutlass_1_1reduction.html"> 40</a></span> <span class="keyword">namespace </span>reduction {</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> </div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span> </div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="keyword">template</span> <<span class="keyword">typename</span> batched_reduction_></div><div class="line"><a name="l00045"></a><span class="lineno"><a class="line" href="namespacecutlass_1_1reduction.html#a9665e8f438a7b290d6e2eb640d93045f"> 45</a></span> __global__ <a class="code" href="namespacecutlass_1_1reduction.html#a9665e8f438a7b290d6e2eb640d93045f">__launch_bounds__</a>(batched_reduction_::Traits::kThreads, 1) void batched_reduction_kernel(typename batched_reduction_::Params params) {</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="comment">// Construct the batched_reduction object</span></div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  batched_reduction_ batched_reduction(params);</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  batched_reduction.run();</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span> }</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span> </div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="keyword">template</span> <<span class="keyword">typename</span> BatchedReductionTraits_></div><div class="line"><a name="l00052"></a><span class="lineno"><a class="line" href="structcutlass_1_1reduction_1_1BatchedReduction.html"> 52</a></span> <span class="keyword">struct </span><a class="code" href="structcutlass_1_1reduction_1_1BatchedReduction.html">BatchedReduction</a> {</div><div class="line"><a name="l00054"></a><span class="lineno"><a class="line" href="structcutlass_1_1reduction_1_1BatchedReduction.html#ae0c48344c7457f17429e6ae7a76dba37"> 54</a></span>  <span class="keyword">typedef</span> <a class="code" href="structcutlass_1_1reduction_1_1BatchedReduction.html">BatchedReduction<BatchedReductionTraits_></a> <a class="code" href="structcutlass_1_1reduction_1_1BatchedReduction.html#ae0c48344c7457f17429e6ae7a76dba37">This_</a>;</div><div class="line"><a name="l00056"></a><span class="lineno"><a class="line" href="structcutlass_1_1reduction_1_1BatchedReduction.html#aa50195fcf53f6d69ccfa37f44a524a99"> 56</a></span>  <span class="keyword">typedef</span> BatchedReductionTraits_ <a class="code" href="structcutlass_1_1reduction_1_1BatchedReduction.html#aa50195fcf53f6d69ccfa37f44a524a99">Traits</a>;</div><div class="line"><a name="l00058"></a><span class="lineno"><a class="line" href="structcutlass_1_1reduction_1_1BatchedReduction.html#a213c6812458c008435ed3ea710fe2454"> 58</a></span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> Traits::Params <a class="code" href="structcutlass_1_1reduction_1_1BatchedReduction.html#a213c6812458c008435ed3ea710fe2454">Params</a>;</div><div class="line"><a name="l00060"></a><span class="lineno"><a class="line" href="structcutlass_1_1reduction_1_1BatchedReduction.html#a30605f35d51e4364fe80edb80eac5e80"> 60</a></span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> Traits::Functor <a class="code" href="structcutlass_1_1reduction_1_1BatchedReduction.html#a30605f35d51e4364fe80edb80eac5e80">Functor</a>;</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span> </div><div class="line"><a name="l00063"></a><span class="lineno"><a class="line" href="structcutlass_1_1reduction_1_1BatchedReduction.html#a9d76da3dcf4d8ec0cfeb2134f73ea22b"> 63</a></span>  CUTLASS_DEVICE <a class="code" href="structcutlass_1_1reduction_1_1BatchedReduction.html#a9d76da3dcf4d8ec0cfeb2134f73ea22b">BatchedReduction</a>(Params <span class="keyword">const</span> &params_)</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  : <a class="code" href="structcutlass_1_1reduction_1_1BatchedReduction.html#a9c9d8378c735597f39927c6ab32519ef">params</a>(params_), <a class="code" href="structcutlass_1_1reduction_1_1BatchedReduction.html#a0f6b38c1b3a5800e6f29d9a2c6c1928d">functor</a>(params_.functorParams) {}</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  </div><div class="line"><a name="l00068"></a><span class="lineno"><a class="line" href="structcutlass_1_1reduction_1_1BatchedReduction.html#a4bfcdfd8f2edeb4fc7081443584d599b"> 68</a></span>  CUTLASS_DEVICE <span class="keywordtype">void</span> <a class="code" href="structcutlass_1_1reduction_1_1BatchedReduction.html#a4bfcdfd8f2edeb4fc7081443584d599b">run</a>() {</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <span class="preprocessor">#if (__CUDA_ARCH__ >= 600)</span></div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="comment">// Swizzle the IDs of the block </span></div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="keyword">typename</span> Traits::BlockSwizzle block_swizzle;</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <a class="code" href="structcutlass_1_1Coord.html">Coord<3></a> threadblock_offset =</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  block_swizzle.get_threadblock_offset(make_Coord_from_shape<Traits::SubTile>());</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span> </div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keywordtype">int</span> subTileSize = gridDim.x * Traits::SubTile::kW;</div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="keywordtype">int</span> tileSize = <a class="code" href="structcutlass_1_1reduction_1_1BatchedReduction.html#a9c9d8378c735597f39927c6ab32519ef">params</a>.problem_size[1] * <a class="code" href="structcutlass_1_1reduction_1_1BatchedReduction.html#a9c9d8378c735597f39927c6ab32519ef">params</a>.problem_size[2];</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="keywordtype">int</span> subTileOffset = threadblock_offset[2] + threadIdx.x * Traits::ThreadShape::kW;</div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span> </div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="keywordtype">int</span> subTileBase = 0;</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>  <span class="keyword">typename</span> Traits::ScalarA inRegs[Traits::maxInReg];</div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <span class="keyword">typename</span> Traits::ScalarAccum AccumRegs[Traits::maxOutReg];</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span> <span class="preprocessor">#pragma unroll</span></div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> subTile = 0; subTile < tileSize; subTile += subTileSize) {</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="keywordtype">int</span> tileOffset = subTileBase + subTileOffset;</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="comment">// Init AccumRegs</span></div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span> <span class="preprocessor">#pragma unroll</span></div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < Traits::ThreadShape::kW; i++)</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  AccumRegs[i] = static_cast<typename Traits::ScalarAccum>(0.0f);</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="comment">// Fetch c0</span></div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <span class="keyword">typename</span> Traits::ScalarAccum c0[Traits::ThreadShape::kW];</div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span> <span class="preprocessor">#pragma unroll</span></div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i< Traits::ThreadShape::kW; i++)</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  c0[i] = static_cast<typename Traits::ScalarAccum>(<a class="code" href="structcutlass_1_1reduction_1_1BatchedReduction.html#a9c9d8378c735597f39927c6ab32519ef">params</a>.d_c[tileOffset + i]);</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>  <span class="comment">// Fetch partial sums from A</span></div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span> <span class="preprocessor">#pragma unroll</span></div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> s = 0; s < Traits::ReductionSize; s++) {</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <span class="keywordtype">int</span> inRegOffset = s * Traits::ThreadShape::kW;</div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <span class="keywordtype">int</span> dOffset = (s * tileSize) + tileOffset;</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span> <span class="preprocessor">#pragma unroll</span></div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i< Traits::ThreadShape::kW; i++) {</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  inRegs[inRegOffset + i] = <a class="code" href="structcutlass_1_1reduction_1_1BatchedReduction.html#a9c9d8378c735597f39927c6ab32519ef">params</a>.d_a[dOffset + i];</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>  }</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>  <span class="comment">// Accumulate</span></div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span> <span class="preprocessor">#pragma unroll</span></div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> s = 0; s < Traits::ReductionSize; s++) {</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <span class="keywordtype">int</span> inRegOffset = s * Traits::ThreadShape::kW;</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span> <span class="preprocessor">#pragma unroll</span></div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < Traits::ThreadShape::kW; i++) {</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <span class="comment">//AccumRegs[i] = cuFma(params.alpha, inRegs[inRegOffset + i], AccumRegs[i]);</span></div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <span class="comment">//AccumRegs[i] = params.alpha * inRegs[inRegOffset + i] + AccumRegs[i];</span></div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  AccumRegs[i] = <span class="keyword">static_cast<</span>typename Traits::ScalarAccum<span class="keyword">></span>(inRegs[inRegOffset + i]) + AccumRegs[i];</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</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="comment">// calling functor</span></div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  functor_caller<Traits::ThreadShapeMultiple2>(AccumRegs, c0, AccumRegs);</div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span> </div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="comment">// Store AccumRegs to D</span></div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span> <span class="preprocessor">#pragma unroll</span></div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < Traits::ThreadShape::kW; i++) {</div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <a class="code" href="structcutlass_1_1reduction_1_1BatchedReduction.html#a9c9d8378c735597f39927c6ab32519ef">params</a>.d_d[tileOffset + i] = <span class="keyword">static_cast<</span>typename Traits::ScalarD<span class="keyword">></span>(AccumRegs[i]);</div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  }</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span> </div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="comment">// Advance sub-tile pointer</span></div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  subTileBase += subTileSize;</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  } <span class="comment">// end for loop</span></div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span> <span class="preprocessor">#endif //#if (__CUDA_ARCH__ >= 600)</span></div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  }</div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span> </div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <span class="keyword">template</span><<span class="keywordtype">bool</span> ThreadShapeMultiple2></div><div class="line"><a name="l00134"></a><span class="lineno"><a class="line" href="structcutlass_1_1reduction_1_1BatchedReduction.html#a7c1d173cbe3abd93bd7bd4c4bf0e0d26"> 134</a></span>  CUTLASS_DEVICE <span class="keywordtype">void</span> <a class="code" href="structcutlass_1_1reduction_1_1BatchedReduction.html#a7c1d173cbe3abd93bd7bd4c4bf0e0d26">functor_caller</a>(<span class="keyword">typename</span> Traits::ScalarAccum <span class="keyword">const</span> *accum, <span class="keyword">typename</span> Traits::ScalarAccum <span class="keyword">const</span> *old, <span class="keyword">typename</span> Traits::ScalarAccum *output) {</div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="keywordflow">if</span> (ThreadShapeMultiple2 == <span class="keyword">true</span>) {</div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span> <span class="preprocessor">#pragma unroll</span></div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < Traits::ThreadShape::kW / 2; i++) {</div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  <a class="code" href="structcutlass_1_1reduction_1_1BatchedReduction.html#a0f6b38c1b3a5800e6f29d9a2c6c1928d">functor</a>.template evaluate<typename Traits::ScalarAccum, typename Traits::ScalarAccum, 2>(&accum[2 * i], &old[2 * i], &output[2 * i]);</div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  }</div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  }</div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <span class="keywordflow">else</span> {</div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span> <span class="preprocessor">#pragma unroll</span></div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < Traits::ThreadShape::kW; i++) {</div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <a class="code" href="structcutlass_1_1reduction_1_1BatchedReduction.html#a0f6b38c1b3a5800e6f29d9a2c6c1928d">functor</a>.template evaluate<typename Traits::ScalarAccum, typename Traits::ScalarAccum, 1>(&accum[i], &old[i], &output[i]);</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>  }</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> </div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="comment">//</span></div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="comment">// Static function members</span></div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <span class="comment">//</span></div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span> <span class="preprocessor">#if !defined(__CUDACC_RTC__)</span></div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  <span class="keyword">static</span> __host__ cudaError_t <a class="code" href="structcutlass_1_1reduction_1_1BatchedReduction.html#ab059393ac467ac365bd0b45c200befdf">launch</a>(Params <span class="keyword">const</span>& <a class="code" href="structcutlass_1_1reduction_1_1BatchedReduction.html#a9c9d8378c735597f39927c6ab32519ef">params</a>,</div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  cudaStream_t stream = cudaStreamDefault) {</div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <span class="comment">// Setup the grid. </span></div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="keyword">typename</span> Traits::BlockSwizzle block_swizzle;</div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  dim3 grid = block_swizzle.get_grid_layout(params.problem_size,</div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  make_Coord_from_shape<typename Traits::OutputTile>());</div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  </div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  dim3 block;</div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  block.x = Traits::kThreads;</div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  batched_reduction_kernel<This_><<<grid, block, 0, stream>>>(<a class="code" href="structcutlass_1_1reduction_1_1BatchedReduction.html#a9c9d8378c735597f39927c6ab32519ef">params</a>);</div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <span class="keywordflow">return</span> cudaGetLastError();</div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  }</div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span> <span class="preprocessor">#endif</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">//</span></div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  <span class="comment">// Data members</span></div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  <span class="comment">//</span></div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span> </div><div class="line"><a name="l00173"></a><span class="lineno"><a class="line" href="structcutlass_1_1reduction_1_1BatchedReduction.html#a9c9d8378c735597f39927c6ab32519ef"> 173</a></span>  Params <span class="keyword">const</span>& <a class="code" href="structcutlass_1_1reduction_1_1BatchedReduction.html#a9c9d8378c735597f39927c6ab32519ef">params</a>;</div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <span class="comment">// The functor.</span></div><div class="line"><a name="l00175"></a><span class="lineno"><a class="line" href="structcutlass_1_1reduction_1_1BatchedReduction.html#a0f6b38c1b3a5800e6f29d9a2c6c1928d"> 175</a></span>  Functor <a class="code" href="structcutlass_1_1reduction_1_1BatchedReduction.html#a0f6b38c1b3a5800e6f29d9a2c6c1928d">functor</a>;</div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span> };</div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span> </div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span> } <span class="comment">// namespace reduction</span></div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span> } <span class="comment">// namespace cutlass</span></div><div class="ttc" id="namespacecutlass_html"><div class="ttname"><a href="namespacecutlass.html">cutlass</a></div><div class="ttdef"><b>Definition:</b> aligned_buffer.h:35</div></div>
<div class="ttc" id="structcutlass_1_1reduction_1_1BatchedReduction_html_a9c9d8378c735597f39927c6ab32519ef"><div class="ttname"><a href="structcutlass_1_1reduction_1_1BatchedReduction.html#a9c9d8378c735597f39927c6ab32519ef">cutlass::reduction::BatchedReduction::params</a></div><div class="ttdeci">Params const & params</div><div class="ttdoc">The params. </div><div class="ttdef"><b>Definition:</b> batched_reduction.h:173</div></div>
<div class="ttc" id="namespacecutlass_1_1reduction_html_a9665e8f438a7b290d6e2eb640d93045f"><div class="ttname"><a href="namespacecutlass_1_1reduction.html#a9665e8f438a7b290d6e2eb640d93045f">cutlass::reduction::__launch_bounds__</a></div><div class="ttdeci">__global__ __launch_bounds__(batched_reduction_::Traits::kThreads, 1) void batched_reduction_kernel(typename batched_reduction_</div><div class="ttdef"><b>Definition:</b> batched_reduction.h:45</div></div>
<div class="ttc" id="coord_8h_html"><div class="ttname"><a href="coord_8h.html">coord.h</a></div><div class="ttdoc">A Coord is a coordinate of arbitrary rank into a tensor or matrix. </div></div>
<div class="ttc" id="structcutlass_1_1reduction_1_1BatchedReduction_html_a4bfcdfd8f2edeb4fc7081443584d599b"><div class="ttname"><a href="structcutlass_1_1reduction_1_1BatchedReduction.html#a4bfcdfd8f2edeb4fc7081443584d599b">cutlass::reduction::BatchedReduction::run</a></div><div class="ttdeci">CUTLASS_DEVICE void run()</div><div class="ttdef"><b>Definition:</b> batched_reduction.h:68</div></div>
<div class="ttc" id="structcutlass_1_1reduction_1_1BatchedReduction_html_ae0c48344c7457f17429e6ae7a76dba37"><div class="ttname"><a href="structcutlass_1_1reduction_1_1BatchedReduction.html#ae0c48344c7457f17429e6ae7a76dba37">cutlass::reduction::BatchedReduction::This_</a></div><div class="ttdeci">BatchedReduction< BatchedReductionTraits_ > This_</div><div class="ttdoc">This class. </div><div class="ttdef"><b>Definition:</b> batched_reduction.h:54</div></div>
<div class="ttc" id="structcutlass_1_1reduction_1_1BatchedReduction_html_a0f6b38c1b3a5800e6f29d9a2c6c1928d"><div class="ttname"><a href="structcutlass_1_1reduction_1_1BatchedReduction.html#a0f6b38c1b3a5800e6f29d9a2c6c1928d">cutlass::reduction::BatchedReduction::functor</a></div><div class="ttdeci">Functor functor</div><div class="ttdef"><b>Definition:</b> batched_reduction.h:175</div></div>
<div class="ttc" id="structcutlass_1_1reduction_1_1BatchedReduction_html"><div class="ttname"><a href="structcutlass_1_1reduction_1_1BatchedReduction.html">cutlass::reduction::BatchedReduction</a></div><div class="ttdef"><b>Definition:</b> batched_reduction.h:52</div></div>
<div class="ttc" id="structcutlass_1_1Coord_html"><div class="ttname"><a href="structcutlass_1_1Coord.html">cutlass::Coord< 3 ></a></div></div>
<div class="ttc" id="structcutlass_1_1reduction_1_1BatchedReduction_html_a9d76da3dcf4d8ec0cfeb2134f73ea22b"><div class="ttname"><a href="structcutlass_1_1reduction_1_1BatchedReduction.html#a9d76da3dcf4d8ec0cfeb2134f73ea22b">cutlass::reduction::BatchedReduction::BatchedReduction</a></div><div class="ttdeci">CUTLASS_DEVICE BatchedReduction(Params const &params_)</div><div class="ttdoc">ctor </div><div class="ttdef"><b>Definition:</b> batched_reduction.h:63</div></div>
<div class="ttc" id="structcutlass_1_1reduction_1_1BatchedReduction_html_a213c6812458c008435ed3ea710fe2454"><div class="ttname"><a href="structcutlass_1_1reduction_1_1BatchedReduction.html#a213c6812458c008435ed3ea710fe2454">cutlass::reduction::BatchedReduction::Params</a></div><div class="ttdeci">Traits::Params Params</div><div class="ttdoc">Params. </div><div class="ttdef"><b>Definition:</b> batched_reduction.h:58</div></div>
<div class="ttc" id="structcutlass_1_1reduction_1_1BatchedReduction_html_a7c1d173cbe3abd93bd7bd4c4bf0e0d26"><div class="ttname"><a href="structcutlass_1_1reduction_1_1BatchedReduction.html#a7c1d173cbe3abd93bd7bd4c4bf0e0d26">cutlass::reduction::BatchedReduction::functor_caller</a></div><div class="ttdeci">CUTLASS_DEVICE void functor_caller(typename Traits::ScalarAccum const *accum, typename Traits::ScalarAccum const *old, typename Traits::ScalarAccum *output)</div><div class="ttdef"><b>Definition:</b> batched_reduction.h:134</div></div>
<div class="ttc" id="structcutlass_1_1reduction_1_1BatchedReduction_html_a30605f35d51e4364fe80edb80eac5e80"><div class="ttname"><a href="structcutlass_1_1reduction_1_1BatchedReduction.html#a30605f35d51e4364fe80edb80eac5e80">cutlass::reduction::BatchedReduction::Functor</a></div><div class="ttdeci">Traits::Functor Functor</div><div class="ttdoc">functor </div><div class="ttdef"><b>Definition:</b> batched_reduction.h:60</div></div>
<div class="ttc" id="structcutlass_1_1reduction_1_1BatchedReduction_html_aa50195fcf53f6d69ccfa37f44a524a99"><div class="ttname"><a href="structcutlass_1_1reduction_1_1BatchedReduction.html#aa50195fcf53f6d69ccfa37f44a524a99">cutlass::reduction::BatchedReduction::Traits</a></div><div class="ttdeci">BatchedReductionTraits_ Traits</div><div class="ttdoc">The traits. </div><div class="ttdef"><b>Definition:</b> batched_reduction.h:56</div></div>
<div class="ttc" id="structcutlass_1_1reduction_1_1BatchedReduction_html_ab059393ac467ac365bd0b45c200befdf"><div class="ttname"><a href="structcutlass_1_1reduction_1_1BatchedReduction.html#ab059393ac467ac365bd0b45c200befdf">cutlass::reduction::BatchedReduction::launch</a></div><div class="ttdeci">static __host__ cudaError_t launch(Params const &params, cudaStream_t stream=cudaStreamDefault)</div><div class="ttdoc">Launch the kernel. </div><div class="ttdef"><b>Definition:</b> batched_reduction.h:154</div></div>
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