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CUTLASS 2.0 (#62) CUTLASS 2.0 Substantially refactored for - Better performance, particularly for native Turing Tensor Cores - Robust and durable templates spanning the design space - Encapsulated functionality embodying modern C++11 programming techniques - Optimized containers and data types for efficient, generic, portable device code Updates to: - Quick start guide - Documentation - Utilities - CUTLASS Profiler Native Turing Tensor Cores - Efficient GEMM kernels targeting Turing Tensor Cores - Mixed-precision floating point, 8-bit integer, 4-bit integer, and binarized operands Coverage of existing CUTLASS functionality: - GEMM kernels targeting CUDA and Tensor Cores in NVIDIA GPUs - Volta Tensor Cores through native mma.sync and through WMMA API - Optimizations such as parallel reductions, threadblock rasterization, and intra-threadblock reductions - Batched GEMM operations - Complex-valued GEMMs Note: this commit and all that follow require a host compiler supporting C++11 or greater.
2019-11-20 08:55:34 +08:00
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<li class="navelem"><a class="el" href="namespacecutlass.html">cutlass</a></li><li class="navelem"><a class="el" href="namespacecutlass_1_1layout.html">layout</a></li><li class="navelem"><a class="el" href="classcutlass_1_1layout_1_1RowMajor.html">RowMajor</a></li> </ul>
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<a href="#pub-types">Public Types</a> &#124;
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<div class="title">cutlass::layout::RowMajor Class Reference</div> </div>
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<p>Mapping function for row-major matrices.
</p>
<p><code>#include &lt;<a class="el" href="layout_2matrix_8h_source.html">matrix.h</a>&gt;</code></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-types"></a>
Public Types</h2></td></tr>
<tr class="memitem:aa49e242b14b4f482bc6bdd082acfb576"><td class="memItemLeft" align="right" valign="top">using&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classcutlass_1_1layout_1_1RowMajor.html#aa49e242b14b4f482bc6bdd082acfb576">Index</a> = int32_t</td></tr>
<tr class="memdesc:aa49e242b14b4f482bc6bdd082acfb576"><td class="mdescLeft">&#160;</td><td class="mdescRight">Index type used for coordinates. <a href="#aa49e242b14b4f482bc6bdd082acfb576">More...</a><br /></td></tr>
<tr class="separator:aa49e242b14b4f482bc6bdd082acfb576"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a4062a36ab044fdea058504ed52ee60b8"><td class="memItemLeft" align="right" valign="top">using&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classcutlass_1_1layout_1_1RowMajor.html#a4062a36ab044fdea058504ed52ee60b8">LongIndex</a> = int64_t</td></tr>
<tr class="memdesc:a4062a36ab044fdea058504ed52ee60b8"><td class="mdescLeft">&#160;</td><td class="mdescRight">Long index type used for offsets. <a href="#a4062a36ab044fdea058504ed52ee60b8">More...</a><br /></td></tr>
<tr class="separator:a4062a36ab044fdea058504ed52ee60b8"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aa62619b3e2f619056ac132bdb6b9042e"><td class="memItemLeft" align="right" valign="top">using&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classcutlass_1_1layout_1_1RowMajor.html#aa62619b3e2f619056ac132bdb6b9042e">TensorCoord</a> = <a class="el" href="structcutlass_1_1MatrixCoord.html">MatrixCoord</a></td></tr>
<tr class="memdesc:aa62619b3e2f619056ac132bdb6b9042e"><td class="mdescLeft">&#160;</td><td class="mdescRight">Logical coordinate. <a href="#aa62619b3e2f619056ac132bdb6b9042e">More...</a><br /></td></tr>
<tr class="separator:aa62619b3e2f619056ac132bdb6b9042e"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a8861b3698bdbde3d7a5471c9e2abc6fc"><td class="memItemLeft" align="right" valign="top">using&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classcutlass_1_1layout_1_1RowMajor.html#a8861b3698bdbde3d7a5471c9e2abc6fc">Stride</a> = <a class="el" href="structcutlass_1_1Coord.html">Coord</a>&lt; <a class="el" href="classcutlass_1_1layout_1_1RowMajor.html#a4bf573d3c00092f8117ff960b82e2f12">kStrideRank</a>, <a class="el" href="classcutlass_1_1layout_1_1RowMajor.html#aa49e242b14b4f482bc6bdd082acfb576">Index</a> &gt;</td></tr>
<tr class="memdesc:a8861b3698bdbde3d7a5471c9e2abc6fc"><td class="mdescLeft">&#160;</td><td class="mdescRight">Stride vector. <a href="#a8861b3698bdbde3d7a5471c9e2abc6fc">More...</a><br /></td></tr>
<tr class="separator:a8861b3698bdbde3d7a5471c9e2abc6fc"><td class="memSeparator" colspan="2">&#160;</td></tr>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:afdf845a439366f97f2bece7a6f9f03c4"><td class="memItemLeft" align="right" valign="top"><a class="el" href="cutlass_8h.html#a28c2443a142676d3d71effdae1a986b1">CUTLASS_HOST_DEVICE</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classcutlass_1_1layout_1_1RowMajor.html#afdf845a439366f97f2bece7a6f9f03c4">RowMajor</a> (<a class="el" href="classcutlass_1_1layout_1_1RowMajor.html#aa49e242b14b4f482bc6bdd082acfb576">Index</a> ldm=0)</td></tr>
<tr class="memdesc:afdf845a439366f97f2bece7a6f9f03c4"><td class="mdescLeft">&#160;</td><td class="mdescRight">Constructor. <a href="#afdf845a439366f97f2bece7a6f9f03c4">More...</a><br /></td></tr>
<tr class="separator:afdf845a439366f97f2bece7a6f9f03c4"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a1fe768ae500e1960013c2cb95e58dce8"><td class="memItemLeft" align="right" valign="top"><a class="el" href="cutlass_8h.html#a28c2443a142676d3d71effdae1a986b1">CUTLASS_HOST_DEVICE</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classcutlass_1_1layout_1_1RowMajor.html#a1fe768ae500e1960013c2cb95e58dce8">RowMajor</a> (<a class="el" href="classcutlass_1_1layout_1_1RowMajor.html#a8861b3698bdbde3d7a5471c9e2abc6fc">Stride</a> <a class="el" href="classcutlass_1_1layout_1_1RowMajor.html#a0778f24212e546694887f308679426db">stride</a>)</td></tr>
<tr class="memdesc:a1fe768ae500e1960013c2cb95e58dce8"><td class="mdescLeft">&#160;</td><td class="mdescRight">Ctor. <a href="#a1fe768ae500e1960013c2cb95e58dce8">More...</a><br /></td></tr>
<tr class="separator:a1fe768ae500e1960013c2cb95e58dce8"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:abb932e4b3cb345451a8c6b682d4e7e2d"><td class="memItemLeft" align="right" valign="top"><a class="el" href="cutlass_8h.html#a28c2443a142676d3d71effdae1a986b1">CUTLASS_HOST_DEVICE</a> <a class="el" href="classcutlass_1_1layout_1_1RowMajor.html#a4062a36ab044fdea058504ed52ee60b8">LongIndex</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classcutlass_1_1layout_1_1RowMajor.html#abb932e4b3cb345451a8c6b682d4e7e2d">operator()</a> (<a class="el" href="structcutlass_1_1MatrixCoord.html">MatrixCoord</a> const &amp;coord) const </td></tr>
<tr class="separator:abb932e4b3cb345451a8c6b682d4e7e2d"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ac2508255cec15a07a2c082f9a58b7e6d"><td class="memItemLeft" align="right" valign="top"><a class="el" href="cutlass_8h.html#a28c2443a142676d3d71effdae1a986b1">CUTLASS_HOST_DEVICE</a> <a class="el" href="structcutlass_1_1MatrixCoord.html">MatrixCoord</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classcutlass_1_1layout_1_1RowMajor.html#ac2508255cec15a07a2c082f9a58b7e6d">inverse</a> (<a class="el" href="classcutlass_1_1layout_1_1RowMajor.html#a4062a36ab044fdea058504ed52ee60b8">LongIndex</a> offset) const </td></tr>
<tr class="memdesc:ac2508255cec15a07a2c082f9a58b7e6d"><td class="mdescLeft">&#160;</td><td class="mdescRight">Inverse of layout function, mapping linear offset to logical coordinate. <a href="#ac2508255cec15a07a2c082f9a58b7e6d">More...</a><br /></td></tr>
<tr class="separator:ac2508255cec15a07a2c082f9a58b7e6d"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a0778f24212e546694887f308679426db"><td class="memItemLeft" align="right" valign="top"><a class="el" href="cutlass_8h.html#a28c2443a142676d3d71effdae1a986b1">CUTLASS_HOST_DEVICE</a> <a class="el" href="classcutlass_1_1layout_1_1RowMajor.html#a8861b3698bdbde3d7a5471c9e2abc6fc">Stride</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classcutlass_1_1layout_1_1RowMajor.html#a0778f24212e546694887f308679426db">stride</a> () const </td></tr>
<tr class="memdesc:a0778f24212e546694887f308679426db"><td class="mdescLeft">&#160;</td><td class="mdescRight">Returns the stride of the layout. <a href="#a0778f24212e546694887f308679426db">More...</a><br /></td></tr>
<tr class="separator:a0778f24212e546694887f308679426db"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a6cc1feff4d21b7f5f0cbda665f56a844"><td class="memItemLeft" align="right" valign="top"><a class="el" href="cutlass_8h.html#a28c2443a142676d3d71effdae1a986b1">CUTLASS_HOST_DEVICE</a> <a class="el" href="classcutlass_1_1layout_1_1RowMajor.html#a8861b3698bdbde3d7a5471c9e2abc6fc">Stride</a> &amp;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classcutlass_1_1layout_1_1RowMajor.html#a6cc1feff4d21b7f5f0cbda665f56a844">stride</a> ()</td></tr>
<tr class="memdesc:a6cc1feff4d21b7f5f0cbda665f56a844"><td class="mdescLeft">&#160;</td><td class="mdescRight">Returns the stride of the layout. <a href="#a6cc1feff4d21b7f5f0cbda665f56a844">More...</a><br /></td></tr>
<tr class="separator:a6cc1feff4d21b7f5f0cbda665f56a844"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a9d99c511509c83687bfd0b959c64016d"><td class="memItemLeft" align="right" valign="top"><a class="el" href="cutlass_8h.html#a28c2443a142676d3d71effdae1a986b1">CUTLASS_HOST_DEVICE</a> <a class="el" href="classcutlass_1_1layout_1_1RowMajor.html#aa49e242b14b4f482bc6bdd082acfb576">Index</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classcutlass_1_1layout_1_1RowMajor.html#a9d99c511509c83687bfd0b959c64016d">stride</a> (int idx) const </td></tr>
<tr class="memdesc:a9d99c511509c83687bfd0b959c64016d"><td class="mdescLeft">&#160;</td><td class="mdescRight">Returns the stride of the layout. <a href="#a9d99c511509c83687bfd0b959c64016d">More...</a><br /></td></tr>
<tr class="separator:a9d99c511509c83687bfd0b959c64016d"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a6113f2f748c70e41b2bef047a6a61fd7"><td class="memItemLeft" align="right" valign="top"><a class="el" href="cutlass_8h.html#a28c2443a142676d3d71effdae1a986b1">CUTLASS_HOST_DEVICE</a> <a class="el" href="classcutlass_1_1layout_1_1RowMajor.html#aa49e242b14b4f482bc6bdd082acfb576">Index</a> &amp;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classcutlass_1_1layout_1_1RowMajor.html#a6113f2f748c70e41b2bef047a6a61fd7">stride</a> (int idx)</td></tr>
<tr class="memdesc:a6113f2f748c70e41b2bef047a6a61fd7"><td class="mdescLeft">&#160;</td><td class="mdescRight">Returns the stride of the layout. <a href="#a6113f2f748c70e41b2bef047a6a61fd7">More...</a><br /></td></tr>
<tr class="separator:a6113f2f748c70e41b2bef047a6a61fd7"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a89225f007689acef0e17f6990e32c56e"><td class="memItemLeft" align="right" valign="top"><a class="el" href="cutlass_8h.html#a28c2443a142676d3d71effdae1a986b1">CUTLASS_HOST_DEVICE</a> <a class="el" href="classcutlass_1_1layout_1_1RowMajor.html#a4062a36ab044fdea058504ed52ee60b8">LongIndex</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classcutlass_1_1layout_1_1RowMajor.html#a89225f007689acef0e17f6990e32c56e">capacity</a> (<a class="el" href="structcutlass_1_1MatrixCoord.html">MatrixCoord</a> const &amp;extent) const </td></tr>
<tr class="memdesc:a89225f007689acef0e17f6990e32c56e"><td class="mdescLeft">&#160;</td><td class="mdescRight">Compute the number of contiguous elements needed to store a tensor with the given size. <a href="#a89225f007689acef0e17f6990e32c56e">More...</a><br /></td></tr>
<tr class="separator:a89225f007689acef0e17f6990e32c56e"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-static-methods"></a>
Static Public Member Functions</h2></td></tr>
<tr class="memitem:a770edcc93145fc3dfa4dfdf37a7c515e"><td class="memItemLeft" align="right" valign="top">static <a class="el" href="cutlass_8h.html#a28c2443a142676d3d71effdae1a986b1">CUTLASS_HOST_DEVICE</a> <a class="el" href="classcutlass_1_1layout_1_1RowMajor.html">RowMajor</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classcutlass_1_1layout_1_1RowMajor.html#a770edcc93145fc3dfa4dfdf37a7c515e">packed</a> (<a class="el" href="structcutlass_1_1MatrixCoord.html">MatrixCoord</a> const &amp;extent)</td></tr>
<tr class="memdesc:a770edcc93145fc3dfa4dfdf37a7c515e"><td class="mdescLeft">&#160;</td><td class="mdescRight">Helper returns a layout to a tightly packed tensor. <a href="#a770edcc93145fc3dfa4dfdf37a7c515e">More...</a><br /></td></tr>
<tr class="separator:a770edcc93145fc3dfa4dfdf37a7c515e"><td class="memSeparator" colspan="2">&#160;</td></tr>
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Static Public Attributes</h2></td></tr>
<tr class="memitem:a1f8883b913b10d3c3512118c4817c71c"><td class="memItemLeft" align="right" valign="top">static int const&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classcutlass_1_1layout_1_1RowMajor.html#a1f8883b913b10d3c3512118c4817c71c">kRank</a> = 2</td></tr>
<tr class="memdesc:a1f8883b913b10d3c3512118c4817c71c"><td class="mdescLeft">&#160;</td><td class="mdescRight">Logical rank of tensor. <a href="#a1f8883b913b10d3c3512118c4817c71c">More...</a><br /></td></tr>
<tr class="separator:a1f8883b913b10d3c3512118c4817c71c"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a4bf573d3c00092f8117ff960b82e2f12"><td class="memItemLeft" align="right" valign="top">static int const&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classcutlass_1_1layout_1_1RowMajor.html#a4bf573d3c00092f8117ff960b82e2f12">kStrideRank</a> = 1</td></tr>
<tr class="memdesc:a4bf573d3c00092f8117ff960b82e2f12"><td class="mdescLeft">&#160;</td><td class="mdescRight">Rank of stride vector. <a href="#a4bf573d3c00092f8117ff960b82e2f12">More...</a><br /></td></tr>
<tr class="separator:a4bf573d3c00092f8117ff960b82e2f12"><td class="memSeparator" colspan="2">&#160;</td></tr>
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<h2 class="groupheader">Member Typedef Documentation</h2>
<a class="anchor" id="aa49e242b14b4f482bc6bdd082acfb576"></a>
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<td class="memname">using <a class="el" href="classcutlass_1_1layout_1_1RowMajor.html#aa49e242b14b4f482bc6bdd082acfb576">cutlass::layout::RowMajor::Index</a> = int32_t</td>
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<td class="memname">using <a class="el" href="classcutlass_1_1layout_1_1RowMajor.html#a4062a36ab044fdea058504ed52ee60b8">cutlass::layout::RowMajor::LongIndex</a> = int64_t</td>
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<td class="memname">using <a class="el" href="classcutlass_1_1layout_1_1RowMajor.html#a8861b3698bdbde3d7a5471c9e2abc6fc">cutlass::layout::RowMajor::Stride</a> = <a class="el" href="structcutlass_1_1Coord.html">Coord</a>&lt;<a class="el" href="classcutlass_1_1layout_1_1RowMajor.html#a4bf573d3c00092f8117ff960b82e2f12">kStrideRank</a>, <a class="el" href="classcutlass_1_1layout_1_1RowMajor.html#aa49e242b14b4f482bc6bdd082acfb576">Index</a>&gt;</td>
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<td class="memname">using <a class="el" href="classcutlass_1_1layout_1_1RowMajor.html#aa62619b3e2f619056ac132bdb6b9042e">cutlass::layout::RowMajor::TensorCoord</a> = <a class="el" href="structcutlass_1_1MatrixCoord.html">MatrixCoord</a></td>
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<h2 class="groupheader">Constructor &amp; Destructor Documentation</h2>
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<td class="memname"><a class="el" href="cutlass_8h.html#a28c2443a142676d3d71effdae1a986b1">CUTLASS_HOST_DEVICE</a> cutlass::layout::RowMajor::RowMajor </td>
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<td class="paramname"><em>ldm</em> = <code>0</code></td><td>)</td>
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<td class="memname"><a class="el" href="cutlass_8h.html#a28c2443a142676d3d71effdae1a986b1">CUTLASS_HOST_DEVICE</a> cutlass::layout::RowMajor::RowMajor </td>
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<td class="paramname"><em>stride</em></td><td>)</td>
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<h2 class="groupheader">Member Function Documentation</h2>
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<td class="memname"><a class="el" href="cutlass_8h.html#a28c2443a142676d3d71effdae1a986b1">CUTLASS_HOST_DEVICE</a> <a class="el" href="classcutlass_1_1layout_1_1RowMajor.html#a4062a36ab044fdea058504ed52ee60b8">LongIndex</a> cutlass::layout::RowMajor::capacity </td>
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<td class="paramname"><em>extent</em></td><td>)</td>
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<td class="memname"><a class="el" href="cutlass_8h.html#a28c2443a142676d3d71effdae1a986b1">CUTLASS_HOST_DEVICE</a> <a class="el" href="structcutlass_1_1MatrixCoord.html">MatrixCoord</a> cutlass::layout::RowMajor::inverse </td>
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<td class="paramname"><em>offset</em></td><td>)</td>
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<td class="memname"><a class="el" href="cutlass_8h.html#a28c2443a142676d3d71effdae1a986b1">CUTLASS_HOST_DEVICE</a> <a class="el" href="classcutlass_1_1layout_1_1RowMajor.html#a4062a36ab044fdea058504ed52ee60b8">LongIndex</a> cutlass::layout::RowMajor::operator() </td>
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<td class="paramname"><em>coord</em></td><td>)</td>
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<p>Returns the offset of a coordinate in linear memory. Assumes coordinate has convention (row, column) </p>
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<td class="memname">static <a class="el" href="cutlass_8h.html#a28c2443a142676d3d71effdae1a986b1">CUTLASS_HOST_DEVICE</a> <a class="el" href="classcutlass_1_1layout_1_1RowMajor.html">RowMajor</a> cutlass::layout::RowMajor::packed </td>
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<td class="paramname"><em>extent</em></td><td>)</td>
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<td class="memname"><a class="el" href="cutlass_8h.html#a28c2443a142676d3d71effdae1a986b1">CUTLASS_HOST_DEVICE</a> <a class="el" href="classcutlass_1_1layout_1_1RowMajor.html#a8861b3698bdbde3d7a5471c9e2abc6fc">Stride</a> cutlass::layout::RowMajor::stride </td>
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<td class="memname"><a class="el" href="cutlass_8h.html#a28c2443a142676d3d71effdae1a986b1">CUTLASS_HOST_DEVICE</a> <a class="el" href="classcutlass_1_1layout_1_1RowMajor.html#a8861b3698bdbde3d7a5471c9e2abc6fc">Stride</a>&amp; cutlass::layout::RowMajor::stride </td>
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<td class="memname"><a class="el" href="cutlass_8h.html#a28c2443a142676d3d71effdae1a986b1">CUTLASS_HOST_DEVICE</a> <a class="el" href="classcutlass_1_1layout_1_1RowMajor.html#aa49e242b14b4f482bc6bdd082acfb576">Index</a> cutlass::layout::RowMajor::stride </td>
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<h2 class="groupheader">Member Data Documentation</h2>
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<td class="memname">int const cutlass::layout::RowMajor::kRank = 2</td>
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<td class="memname">int const cutlass::layout::RowMajor::kStrideRank = 1</td>
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<hr/>The documentation for this class was generated from the following file:<ul>
<li><a class="el" href="layout_2matrix_8h_source.html">layout/matrix.h</a></li>
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