diff options
| author | aamir <[email protected]> | 2018-07-21 19:30:40 -0700 |
|---|---|---|
| committer | aamir <[email protected]> | 2018-07-21 19:30:40 -0700 |
| commit | fcf40649feb6046fb9b1ed984fb9b19422cd5463 (patch) | |
| tree | 92b28621af353598ad3a49df70ebb596d1205609 /cutlass-example/cutlass/gemm/hgemm_global_tile.h | |
| parent | b3ad8abea43b7d1e8887f57d6e30c5a40cf752a6 (diff) | |
adding the cutlass examples
Diffstat (limited to 'cutlass-example/cutlass/gemm/hgemm_global_tile.h')
| -rw-r--r-- | cutlass-example/cutlass/gemm/hgemm_global_tile.h | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/cutlass-example/cutlass/gemm/hgemm_global_tile.h b/cutlass-example/cutlass/gemm/hgemm_global_tile.h new file mode 100644 index 0000000..f14dbb3 --- /dev/null +++ b/cutlass-example/cutlass/gemm/hgemm_global_tile.h @@ -0,0 +1,90 @@ +/*************************************************************************************************** + * Copyright (c) 2017-2018, NVIDIA CORPORATION. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, are permitted + * provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright notice, this list of + * conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright notice, this list of + * conditions and the following disclaimer in the documentation and/or other materials + * provided with the distribution. + * * Neither the name of the NVIDIA CORPORATION nor the names of its contributors may be used + * to endorse or promote products derived from this software without specific prior written + * permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL NVIDIA CORPORATION BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; + * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TOR (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + **************************************************************************************************/ +/*! \file + \brief Tile traits used to construct global tile iterator for HGEMM. This is intended to + partition the thread block-level tile into 2D subtiles loaded by the threads and facilitate + memory accesses larger than 16 bits. +*/ +#pragma once + +#include <cutlass/coord.h> +#include <cutlass/gemm/gemm_global_tile.h> +#include <cutlass/matrix_traits.h> +#include <cutlass/reshape_tile.h> + +namespace cutlass { +namespace gemm { + +//////////////////////////////////////////////////////////////////////////////////////////////////// + +template <GemmOperand::Kind kOperand_, + MatrixLayout::Kind kLayout_, + typename Scalar_, + typename Tile_, + typename Threads_, + int kAccessSize_> +struct HgemmCrosswiseGlobalTileTraits : public GemmGlobalTileTraits< + // Which GEMM operand? + kOperand_, + // The layout. + kLayout_, + // The scalar. + Scalar_, + // The tile. + Tile_, + // The threads. + Threads_, + // The number of scalars per LDG/STG. + kAccessSize_> { + /// The base class. + typedef GemmGlobalTileTraits<kOperand_, kLayout_, Scalar_, Tile_, Threads_, kAccessSize_> Base; + /// The threads. + typedef typename Base::Threads Threads; + /// The threads strides. + typedef Shape<1, 2, Base::Tile::kC> ThreadsDelta; + /// The strides in each dimension between different loads/stores. + typedef Shape<Base::Threads::kH * 2, 1, Base::Threads::kW, Base::kAccessSize> Delta; + /// The number of iterations needed to load/store the tile. + typedef Shape<Base::Tile::kH / Base::Threads::kH / 2, + 2, + Base::Tile::kW / Base::Threads::kW, + Base::Tile::kC / Base::kAccessSize> + Iterations; + /// Computes the thread offset in (H, W) based on thread ID + struct ThreadOffset { + CUTLASS_HOST_DEVICE + Coord<4> operator()() const { + int thread_offset_h = threadIdx.x / Threads::kW * ThreadsDelta::kH; + int thread_offset_w = threadIdx.x % Threads::kW * ThreadsDelta::kW; + + return make_Coord(0, thread_offset_h, thread_offset_w, 0); + } + }; +}; + +//////////////////////////////////////////////////////////////////////////////////////////////////// + +} // namespace gemm +} // namespace cutlass |
