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<div id="projectbrief">CUDA Templates for Linear Algebra Subroutines and Solvers</div>
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<a href="tile_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) 2017-2018, 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="shape_8h.html">cutlass/shape.h</a>></span></div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> </div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="keyword">namespace </span><a class="code" href="namespacecutlass.html">cutlass</a> {</div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> </div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> </div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="comment">// The following functor reshapes a tile of data. The goal is to have at least kAccessSize in</span></div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="comment">// the inner-most dimension. If the user respects that constraint, there is nothing to be done. If</span></div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="comment">// that's not the case, this functor will correct that and "extract" the right number of elements</span></div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="comment">// from the next dimension.</span></div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> </div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="keyword">template</span> <<span class="keyword">typename</span> Tile_, <span class="keywordtype">int</span> kAccessSize_, <span class="keywordtype">bool</span> = (Tile_::kC < kAccessSize_)></div><div class="line"><a name="l00042"></a><span class="lineno"><a class="line" href="structcutlass_1_1ReshapeTile.html"> 42</a></span> struct ReshapeTile {</div><div class="line"><a name="l00043"></a><span class="lineno"><a class="line" href="structcutlass_1_1ReshapeTile.html#a8d57fe6422aa920d9815a66e5a85b5f5"> 43</a></span>  typedef Tile_ Tile;</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span> };</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span> </div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="keyword">template</span> <<span class="keyword">typename</span> Tile_, <span class="keywordtype">int</span> kAccessSize_></div><div class="line"><a name="l00047"></a><span class="lineno"><a class="line" href="structcutlass_1_1ReshapeTile_3_01Tile___00_01kAccessSize___00_01true_01_4.html"> 47</a></span> <span class="keyword">struct </span><a class="code" href="structcutlass_1_1ReshapeTile_3_01Tile___00_01kAccessSize___00_01true_01_4.html">ReshapeTile<Tile_, kAccessSize_, true></a> {</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="comment">// Make sure the W dimension of the tile is large enough.</span></div><div class="line"><a name="l00049"></a><span class="lineno"><a class="line" href="structcutlass_1_1ReshapeTile_3_01Tile___00_01kAccessSize___00_01true_01_4.html#a966a9432cf42dfdff8ad6b89ebd74f06"> 49</a></span>  <a class="code" href="nv__std_8h.html#adde4c9ea91b753491851361a4198c009">static_assert</a>(Tile_::kW >= kAccessSize_, <span class="stringliteral">"The W dimension is too small"</span>);</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="comment">// Make sure the dimension can be divided by the number of scalars.</span></div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <a class="code" href="nv__std_8h.html#adde4c9ea91b753491851361a4198c009">static_assert</a>(Tile_::kW % kAccessSize_ == 0, <span class="stringliteral">"Not supported"</span>);</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="comment">// Collapse the W dimension.</span></div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="keyword">typedef</span> <a class="code" href="structcutlass_1_1Shape.html">Shape</a><Tile_::kD, Tile_::kH, Tile_::kW / kAccessSize_, kAccessSize_> <a class="code" href="structcutlass_1_1ReshapeTile_3_01Tile___00_01kAccessSize___00_01true_01_4.html#a966a9432cf42dfdff8ad6b89ebd74f06">Tile</a>;</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span> };</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span> </div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span> </div><div class="line"><a name="l00058"></a><span class="lineno"> 58</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> convert.h:34</div></div>
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<div class="ttc" id="structcutlass_1_1ReshapeTile_3_01Tile___00_01kAccessSize___00_01true_01_4_html"><div class="ttname"><a href="structcutlass_1_1ReshapeTile_3_01Tile___00_01kAccessSize___00_01true_01_4.html">cutlass::ReshapeTile< Tile_, kAccessSize_, true ></a></div><div class="ttdef"><b>Definition:</b> tile.h:47</div></div>
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<div class="ttc" id="structcutlass_1_1Shape_html"><div class="ttname"><a href="structcutlass_1_1Shape.html">cutlass::Shape</a></div><div class="ttdoc">A Shape implementing Layout Concept describing the dimensions of a cube. </div><div class="ttdef"><b>Definition:</b> shape.h:63</div></div>
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<div class="ttc" id="structcutlass_1_1ReshapeTile_3_01Tile___00_01kAccessSize___00_01true_01_4_html_a966a9432cf42dfdff8ad6b89ebd74f06"><div class="ttname"><a href="structcutlass_1_1ReshapeTile_3_01Tile___00_01kAccessSize___00_01true_01_4.html#a966a9432cf42dfdff8ad6b89ebd74f06">cutlass::ReshapeTile< Tile_, kAccessSize_, true >::Tile</a></div><div class="ttdeci">Shape< Tile_::kD, Tile_::kH, Tile_::kW/kAccessSize_, kAccessSize_ > Tile</div><div class="ttdef"><b>Definition:</b> tile.h:49</div></div>
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<div class="ttc" id="nv__std_8h_html_adde4c9ea91b753491851361a4198c009"><div class="ttname"><a href="nv__std_8h.html#adde4c9ea91b753491851361a4198c009">static_assert</a></div><div class="ttdeci">#define static_assert(__e, __m)</div><div class="ttdef"><b>Definition:</b> nv_std.h:167</div></div>
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<div class="ttc" id="shape_8h_html"><div class="ttname"><a href="shape_8h.html">shape.h</a></div><div class="ttdoc">Defines Shape implementing the Layout concept for representing a 4D hypercube of objects. </div></div>
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