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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_6baf2bb612a2f0daa69af3101ede80a1.html">cutlass</a></li><li class="navelem"><a class="el" href="dir_2296cf082f2778f9a3503c8ea1010763.html">layout</a></li> </ul>
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<div class="title">vector.h</div> </div>
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<a href="vector_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="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#pragma once</span></div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> </div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#include "<a class="code" href="cutlass_8h.html">cutlass/cutlass.h</a>"</span></div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor">#include "<a class="code" href="coord_8h.html">cutlass/coord.h</a>"</span></div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> </div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="keyword">namespace </span><a class="code" href="namespacecutlass.html">cutlass</a> {</div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="keyword">namespace </span>layout {</div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> </div><div class="line"><a name="l00037"></a><span class="lineno"><a class="line" href="classcutlass_1_1layout_1_1PackedVectorLayout.html"> 37</a></span> <span class="keyword">class </span><a class="code" href="classcutlass_1_1layout_1_1PackedVectorLayout.html">PackedVectorLayout</a> {</div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00040"></a><span class="lineno"><a class="line" href="classcutlass_1_1layout_1_1PackedVectorLayout.html#a527d1f3f293a962aa814ca69a5194b24"> 40</a></span>  <span class="keyword">static</span> <span class="keywordtype">int</span> <span class="keyword">const</span> <a class="code" href="classcutlass_1_1layout_1_1PackedVectorLayout.html#a527d1f3f293a962aa814ca69a5194b24">kRank</a> = 1;</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> </div><div class="line"><a name="l00043"></a><span class="lineno"><a class="line" href="classcutlass_1_1layout_1_1PackedVectorLayout.html#a98a28ffe4b3919f3c011ddf86fec6e69"> 43</a></span>  <span class="keyword">static</span> <span class="keywordtype">int</span> <span class="keyword">const</span> <a class="code" href="classcutlass_1_1layout_1_1PackedVectorLayout.html#a98a28ffe4b3919f3c011ddf86fec6e69">kStrideRank</a> = 1;</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span> </div><div class="line"><a name="l00046"></a><span class="lineno"><a class="line" href="classcutlass_1_1layout_1_1PackedVectorLayout.html#a359d91ca6d2cae5994db320edeea686e"> 46</a></span>  <span class="keyword">using</span> <a class="code" href="classcutlass_1_1layout_1_1PackedVectorLayout.html#a359d91ca6d2cae5994db320edeea686e">Index</a> = int32_t;</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span> </div><div class="line"><a name="l00049"></a><span class="lineno"><a class="line" href="classcutlass_1_1layout_1_1PackedVectorLayout.html#ac97c429c4de5e90a57fe14a90cb30f6b"> 49</a></span>  <span class="keyword">using</span> <a class="code" href="classcutlass_1_1layout_1_1PackedVectorLayout.html#ac97c429c4de5e90a57fe14a90cb30f6b">LongIndex</a> = int64_t;</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span> </div><div class="line"><a name="l00052"></a><span class="lineno"><a class="line" href="classcutlass_1_1layout_1_1PackedVectorLayout.html#a24fa65530043467f05aa2a13cdbc2f3e"> 52</a></span>  <span class="keyword">using</span> <a class="code" href="structcutlass_1_1Coord.html">TensorCoord</a> = <a class="code" href="structcutlass_1_1Coord.html">Coord<kRank, Index></a>;</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span> </div><div class="line"><a name="l00055"></a><span class="lineno"><a class="line" href="classcutlass_1_1layout_1_1PackedVectorLayout.html#a19e9cdfad214f29e7e04c5d8560fec7d"> 55</a></span>  <span class="keyword">using</span> <a class="code" href="structcutlass_1_1Coord.html">Stride</a> = <a class="code" href="structcutlass_1_1Coord.html">Coord<kStrideRank, Index></a>;</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span> </div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="keyword">private</span>:</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span> </div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <span class="comment">//</span></div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="comment">// No actual stride vector stored</span></div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="comment">//</span></div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span> </div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span> </div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="comment">//</span></div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="comment">// Methods</span></div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="comment">//</span></div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span> </div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <a class="code" href="cutlass_8h.html#a28c2443a142676d3d71effdae1a986b1">CUTLASS_HOST_DEVICE</a></div><div class="line"><a name="l00070"></a><span class="lineno"><a class="line" href="classcutlass_1_1layout_1_1PackedVectorLayout.html#a8a6ead8c5b4b2a9e22d1e6ae779ff038"> 70</a></span>  <a class="code" href="classcutlass_1_1layout_1_1PackedVectorLayout.html#a8a6ead8c5b4b2a9e22d1e6ae779ff038">PackedVectorLayout</a>() { }</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span> </div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <a class="code" href="cutlass_8h.html#a28c2443a142676d3d71effdae1a986b1">CUTLASS_HOST_DEVICE</a></div><div class="line"><a name="l00074"></a><span class="lineno"><a class="line" href="classcutlass_1_1layout_1_1PackedVectorLayout.html#aaa31d06cab1db8ff0c303515396b5b09"> 74</a></span>  <span class="keyword">static</span> <a class="code" href="classcutlass_1_1layout_1_1PackedVectorLayout.html">PackedVectorLayout</a> <a class="code" href="classcutlass_1_1layout_1_1PackedVectorLayout.html#aaa31d06cab1db8ff0c303515396b5b09">packed</a>(<a class="code" href="structcutlass_1_1Coord.html">TensorCoord</a> <span class="keyword">const</span> &size) {</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keywordflow">return</span> <a class="code" href="classcutlass_1_1layout_1_1PackedVectorLayout.html#a8a6ead8c5b4b2a9e22d1e6ae779ff038">PackedVectorLayout</a>();</div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  }</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span> </div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <a class="code" href="cutlass_8h.html#a28c2443a142676d3d71effdae1a986b1">CUTLASS_HOST_DEVICE</a></div><div class="line"><a name="l00080"></a><span class="lineno"><a class="line" href="classcutlass_1_1layout_1_1PackedVectorLayout.html#a39cc27d637aa946f1515df04972b1885"> 80</a></span>  <a class="code" href="classcutlass_1_1layout_1_1PackedVectorLayout.html#ac97c429c4de5e90a57fe14a90cb30f6b">LongIndex</a> <a class="code" href="classcutlass_1_1layout_1_1PackedVectorLayout.html#a39cc27d637aa946f1515df04972b1885">operator()</a>(<a class="code" href="structcutlass_1_1Coord.html">TensorCoord</a> <span class="keyword">const</span> &coord)<span class="keyword"> const </span>{</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="keywordflow">return</span> coord[0];</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> </div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <a class="code" href="cutlass_8h.html#a28c2443a142676d3d71effdae1a986b1">CUTLASS_HOST_DEVICE</a></div><div class="line"><a name="l00086"></a><span class="lineno"><a class="line" href="classcutlass_1_1layout_1_1PackedVectorLayout.html#ab6a6e1023e9c04d60714adbb4d713f17"> 86</a></span>  <a class="code" href="structcutlass_1_1Coord.html">Stride</a> <a class="code" href="classcutlass_1_1layout_1_1PackedVectorLayout.html#ab6a6e1023e9c04d60714adbb4d713f17">stride</a>()<span class="keyword"> const </span>{</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="keywordflow">return</span> <a class="code" href="namespacecutlass.html#a7419519fa453a121dfa5f26bf87318d9">make_Coord</a>(1);</div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  }</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span> </div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <a class="code" href="cutlass_8h.html#a28c2443a142676d3d71effdae1a986b1">CUTLASS_HOST_DEVICE</a></div><div class="line"><a name="l00092"></a><span class="lineno"><a class="line" href="classcutlass_1_1layout_1_1PackedVectorLayout.html#a20b384f56d697894a75c8f4693155320"> 92</a></span>  <a class="code" href="classcutlass_1_1layout_1_1PackedVectorLayout.html#ac97c429c4de5e90a57fe14a90cb30f6b">LongIndex</a> <a class="code" href="classcutlass_1_1layout_1_1PackedVectorLayout.html#a20b384f56d697894a75c8f4693155320">capacity</a>(<a class="code" href="structcutlass_1_1Coord.html">TensorCoord</a> <span class="keyword">const</span> &size)<span class="keyword"> const </span>{</div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <span class="keywordflow">return</span> size[0];</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  }</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">// namespace layout</span></div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span> } <span class="comment">// namespace cutlass</span></div><div class="ttc" id="classcutlass_1_1layout_1_1PackedVectorLayout_html_ac97c429c4de5e90a57fe14a90cb30f6b"><div class="ttname"><a href="classcutlass_1_1layout_1_1PackedVectorLayout.html#ac97c429c4de5e90a57fe14a90cb30f6b">cutlass::layout::PackedVectorLayout::LongIndex</a></div><div class="ttdeci">int64_t LongIndex</div><div class="ttdoc">Long index type used for offsets. </div><div class="ttdef"><b>Definition:</b> vector.h:49</div></div>
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<div class="ttc" id="classcutlass_1_1layout_1_1PackedVectorLayout_html_a98a28ffe4b3919f3c011ddf86fec6e69"><div class="ttname"><a href="classcutlass_1_1layout_1_1PackedVectorLayout.html#a98a28ffe4b3919f3c011ddf86fec6e69">cutlass::layout::PackedVectorLayout::kStrideRank</a></div><div class="ttdeci">static int const kStrideRank</div><div class="ttdoc">Rank of stride vector. </div><div class="ttdef"><b>Definition:</b> vector.h:43</div></div>
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<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>
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<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>
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<div class="ttc" id="namespacecutlass_html_a7419519fa453a121dfa5f26bf87318d9"><div class="ttname"><a href="namespacecutlass.html#a7419519fa453a121dfa5f26bf87318d9">cutlass::make_Coord</a></div><div class="ttdeci">CUTLASS_HOST_DEVICE Coord< 1 > make_Coord(int _0)</div><div class="ttdoc">Helper to make a 2-element coordinate. </div><div class="ttdef"><b>Definition:</b> coord.h:387</div></div>
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<div class="ttc" id="classcutlass_1_1layout_1_1PackedVectorLayout_html_a8a6ead8c5b4b2a9e22d1e6ae779ff038"><div class="ttname"><a href="classcutlass_1_1layout_1_1PackedVectorLayout.html#a8a6ead8c5b4b2a9e22d1e6ae779ff038">cutlass::layout::PackedVectorLayout::PackedVectorLayout</a></div><div class="ttdeci">CUTLASS_HOST_DEVICE PackedVectorLayout()</div><div class="ttdef"><b>Definition:</b> vector.h:70</div></div>
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<div class="ttc" id="classcutlass_1_1layout_1_1PackedVectorLayout_html_ab6a6e1023e9c04d60714adbb4d713f17"><div class="ttname"><a href="classcutlass_1_1layout_1_1PackedVectorLayout.html#ab6a6e1023e9c04d60714adbb4d713f17">cutlass::layout::PackedVectorLayout::stride</a></div><div class="ttdeci">CUTLASS_HOST_DEVICE Stride stride() const </div><div class="ttdoc">Returns the stride of the layout. </div><div class="ttdef"><b>Definition:</b> vector.h:86</div></div>
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<div class="ttc" id="classcutlass_1_1layout_1_1PackedVectorLayout_html_a527d1f3f293a962aa814ca69a5194b24"><div class="ttname"><a href="classcutlass_1_1layout_1_1PackedVectorLayout.html#a527d1f3f293a962aa814ca69a5194b24">cutlass::layout::PackedVectorLayout::kRank</a></div><div class="ttdeci">static int const kRank</div><div class="ttdoc">Logical rank of tensor. </div><div class="ttdef"><b>Definition:</b> vector.h:40</div></div>
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<div class="ttc" id="classcutlass_1_1layout_1_1PackedVectorLayout_html_a359d91ca6d2cae5994db320edeea686e"><div class="ttname"><a href="classcutlass_1_1layout_1_1PackedVectorLayout.html#a359d91ca6d2cae5994db320edeea686e">cutlass::layout::PackedVectorLayout::Index</a></div><div class="ttdeci">int32_t Index</div><div class="ttdoc">Index type used for coordinates. </div><div class="ttdef"><b>Definition:</b> vector.h:46</div></div>
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<div class="ttc" id="classcutlass_1_1layout_1_1PackedVectorLayout_html_aaa31d06cab1db8ff0c303515396b5b09"><div class="ttname"><a href="classcutlass_1_1layout_1_1PackedVectorLayout.html#aaa31d06cab1db8ff0c303515396b5b09">cutlass::layout::PackedVectorLayout::packed</a></div><div class="ttdeci">static CUTLASS_HOST_DEVICE PackedVectorLayout packed(TensorCoord const &size)</div><div class="ttdoc">Helper returns a layout to a tightly packed tensor. </div><div class="ttdef"><b>Definition:</b> vector.h:74</div></div>
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<div class="ttc" id="cutlass_8h_html_a28c2443a142676d3d71effdae1a986b1"><div class="ttname"><a href="cutlass_8h.html#a28c2443a142676d3d71effdae1a986b1">CUTLASS_HOST_DEVICE</a></div><div class="ttdeci">#define CUTLASS_HOST_DEVICE</div><div class="ttdef"><b>Definition:</b> cutlass.h:89</div></div>
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<div class="ttc" id="classcutlass_1_1layout_1_1PackedVectorLayout_html_a39cc27d637aa946f1515df04972b1885"><div class="ttname"><a href="classcutlass_1_1layout_1_1PackedVectorLayout.html#a39cc27d637aa946f1515df04972b1885">cutlass::layout::PackedVectorLayout::operator()</a></div><div class="ttdeci">CUTLASS_HOST_DEVICE LongIndex operator()(TensorCoord const &coord) const </div><div class="ttdoc">Returns the offset of a coordinate in linear memory. </div><div class="ttdef"><b>Definition:</b> vector.h:80</div></div>
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<div class="ttc" id="structcutlass_1_1Coord_html"><div class="ttname"><a href="structcutlass_1_1Coord.html">cutlass::Coord</a></div><div class="ttdoc">Statically-sized array specifying Coords within a tensor. </div><div class="ttdef"><b>Definition:</b> coord.h:43</div></div>
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<div class="ttc" id="classcutlass_1_1layout_1_1PackedVectorLayout_html"><div class="ttname"><a href="classcutlass_1_1layout_1_1PackedVectorLayout.html">cutlass::layout::PackedVectorLayout</a></div><div class="ttdoc">Tensor layout for densely packed vectors. </div><div class="ttdef"><b>Definition:</b> vector.h:37</div></div>
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<div class="ttc" id="cutlass_8h_html"><div class="ttname"><a href="cutlass_8h.html">cutlass.h</a></div><div class="ttdoc">Basic include for CUTLASS. </div></div>
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<div class="ttc" id="classcutlass_1_1layout_1_1PackedVectorLayout_html_a20b384f56d697894a75c8f4693155320"><div class="ttname"><a href="classcutlass_1_1layout_1_1PackedVectorLayout.html#a20b384f56d697894a75c8f4693155320">cutlass::layout::PackedVectorLayout::capacity</a></div><div class="ttdeci">CUTLASS_HOST_DEVICE LongIndex capacity(TensorCoord const &size) const </div><div class="ttdoc">Compute the number of contiguous elements needed to store a tensor with the given size...</div><div class="ttdef"><b>Definition:</b> vector.h:92</div></div>
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