CUTLASS: default_epilogue_wmma_tensor_op.h Source File

| CUTLASS CUDA Templates for Linear Algebra Subroutines and Solvers

- Main Page
- Modules
- Namespaces
- Classes
- Files

- File List
- File Members

default_epilogue_wmma_tensor_op.h
Go to the documentation of this file.
1 /***************************************************************************************************
2 * Copyright (c) 2017-2019, NVIDIA CORPORATION. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without modification, are permitted
5 * provided that the following conditions are met:
6 * * Redistributions of source code must retain the above copyright notice, this list of
7 * conditions and the following disclaimer.
8 * * Redistributions in binary form must reproduce the above copyright notice, this list of
9 * conditions and the following disclaimer in the documentation and/or other materials
10 * provided with the distribution.
11 * * Neither the name of the NVIDIA CORPORATION nor the names of its contributors may be used
12 * to endorse or promote products derived from this software without specific prior written
13 * permission.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
17 * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL NVIDIA CORPORATION BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
19 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
20 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
21 * STRICT LIABILITY, OR TOR (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
22 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23 *
24 **************************************************************************************************/
33 #pragma once
34
35 #include "cutlass/cutlass.h"
36 #include "cutlass/numeric_types.h"
37 #include "cutlass/array.h"
38
39 #include "cutlass/gemm/gemm.h"
40
41 #include "cutlass/epilogue/thread/linear_combination.h"
42 #include "cutlass/epilogue/thread/conversion_op.h"
43 #include "cutlass/epilogue/thread/reduction_op.h"
44
45 #include "cutlass/transform/threadblock/regular_tile_iterator_pitch_linear.h"
46
47 #include "cutlass/epilogue/warp/fragment_iterator_wmma_tensor_op.h"
48 #include "cutlass/epilogue/warp/tile_iterator_wmma_tensor_op.h"
49 #include "cutlass/epilogue/threadblock/default_thread_map_wmma_tensor_op.h"
50 #include "cutlass/epilogue/threadblock/predicated_tile_iterator.h"
51 #include "cutlass/epilogue/threadblock/shared_load_iterator.h"
52
53 #include "cutlass/epilogue/threadblock/epilogue.h"
54
56
57 namespace cutlass {
58 namespace epilogue {
59 namespace threadblock {
60
62
64 template <
65 typename Shape_,
66 typename WarpMmaTensorOp_,
67 int PartitionsK,
68 typename OutputOp_,
69 int ElementsPerAccess
70 >
71 struct DefaultEpilogueWmmaTensorOp {
72
73 using Shape = Shape_;
74 using WarpMmaTensorOp = WarpMmaTensorOp_;
75 static int const kPartitionsK = PartitionsK;
76 using OutputOp = OutputOp_;
77 static int const kElementsPerAccess = ElementsPerAccess;
78
79 using ElementOutput = typename OutputOp::ElementOutput;
80 using LayoutC = typename WarpMmaTensorOp::LayoutC;
81 using ElementAccumulator = typename WarpMmaTensorOp::ElementC;
82
83 //
84 // Thread map
85 //
86
87 using OutputTileThreadMap = typename cutlass::epilogue::threadblock::DefaultThreadMapWmmaTensorOp<
88 Shape,
89 typename WarpMmaTensorOp::Shape,
90 typename WarpMmaTensorOp::Policy::Operator::Shape,
91 kPartitionsK,
92 ElementOutput,
93 kElementsPerAccess
94 >::Type;
95
96 using OutputTileIterator = cutlass::epilogue::threadblock::PredicatedTileIterator<
97 OutputTileThreadMap,
98 ElementOutput
99 >;
100
101 using AccumulatorFragmentIterator = cutlass::epilogue::warp::FragmentIteratorWmmaTensorOp<
102 typename WarpMmaTensorOp::Shape,
103 typename WarpMmaTensorOp::Policy::Operator::Shape,
104 typename WarpMmaTensorOp::Policy::Operator::ElementC,
105 typename WarpMmaTensorOp::Policy::Operator::FragmentC,
106 LayoutC
107 >;
108
109 using WarpTileIterator = cutlass::epilogue::warp::TileIteratorWmmaTensorOp<
110 typename WarpMmaTensorOp::Shape,
111 typename WarpMmaTensorOp::Policy::Operator::Shape,
112 typename WarpMmaTensorOp::Policy::Operator::FragmentC,
113 LayoutC
114 >;
115
116 using SharedLoadIterator = cutlass::epilogue::threadblock::SharedLoadIterator<
117 typename OutputTileThreadMap::CompactedThreadMap,
118 ElementAccumulator
119 >;
120
122 using Padding = typename WarpTileIterator::Padding;
123
124 //
125 // Define the epilogue
126 //
127 using Epilogue = cutlass::epilogue::threadblock::Epilogue<
128 Shape,
129 WarpMmaTensorOp,
130 kPartitionsK,
131 OutputTileIterator,
132 AccumulatorFragmentIterator,
133 WarpTileIterator,
134 SharedLoadIterator,
135 OutputOp,
136 Padding
137 >;
138 };
139
140
142
143 } // namespace threadblock
144 } // namespace epilogue
145 } // namespace cutlass
146
regular_tile_iterator_pitch_linear.h
Templates implementing loading of tiles from pitch-linear rank=2 tensors.
cutlass
Definition: aligned_buffer.h:35
cutlass::epilogue::threadblock::DefaultEpilogueWmmaTensorOp::Shape
Shape_ Shape
Definition: default_epilogue_wmma_tensor_op.h:73
cutlass::epilogue::threadblock::DefaultEpilogueWmmaTensorOp::OutputTileIterator
cutlass::epilogue::threadblock::PredicatedTileIterator< OutputTileThreadMap, ElementOutput > OutputTileIterator
Definition: default_epilogue_wmma_tensor_op.h:99
predicated_tile_iterator.h
Epilogue for threadblock scoped GEMMs using Tensor Ops.
gemm.h
Defines common types used for all GEMM-like operators.
conversion_op.h
Functor performing conversion operations used by epilogues.
cutlass::epilogue::threadblock::DefaultEpilogueWmmaTensorOp::LayoutC
typename WarpMmaTensorOp::LayoutC LayoutC
Definition: default_epilogue_wmma_tensor_op.h:80
cutlass::epilogue::threadblock::DefaultEpilogueWmmaTensorOp::AccumulatorFragmentIterator
cutlass::epilogue::warp::FragmentIteratorWmmaTensorOp< typename WarpMmaTensorOp::Shape, typename WarpMmaTensorOp::Policy::Operator::Shape, typename WarpMmaTensorOp::Policy::Operator::ElementC, typename WarpMmaTensorOp::Policy::Operator::FragmentC, LayoutC > AccumulatorFragmentIterator
Definition: default_epilogue_wmma_tensor_op.h:107
cutlass::epilogue::threadblock::DefaultEpilogueWmmaTensorOp::OutputOp
OutputOp_ OutputOp
Definition: default_epilogue_wmma_tensor_op.h:76
array.h
Statically sized array of elements that accommodates all CUTLASS-supported numeric types and is safe ...
cutlass::epilogue::threadblock::DefaultEpilogueWmmaTensorOp::ElementOutput
typename OutputOp::ElementOutput ElementOutput
Definition: default_epilogue_wmma_tensor_op.h:79
linear_combination.h
Functor performing linear combination operations used by epilogues.
cutlass::epilogue::threadblock::DefaultEpilogueWmmaTensorOp::kPartitionsK
static int const kPartitionsK
Definition: default_epilogue_wmma_tensor_op.h:75
tile_iterator_wmma_tensor_op.h
numeric_types.h
Top-level include for all CUTLASS numeric types.
cutlass::epilogue::threadblock::DefaultEpilogueWmmaTensorOp::Padding
typename WarpTileIterator::Padding Padding
Hard-coded padding elements added.
Definition: default_epilogue_wmma_tensor_op.h:122
shared_load_iterator.h
Epilogue for threadblock scoped GEMMs using Tensor Ops.
cutlass::epilogue::warp::FragmentIteratorWmmaTensorOp
Definition: fragment_iterator_wmma_tensor_op.h:63
cutlass::epilogue::threadblock::DefaultThreadMapWmmaTensorOp
Defines the optimal thread map for Wmma TensorOp accumulator layouts.
Definition: default_thread_map_wmma_tensor_op.h:53
cutlass::epilogue::threadblock::DefaultEpilogueWmmaTensorOp::OutputTileThreadMap
typename cutlass::epilogue::threadblock::DefaultThreadMapWmmaTensorOp< Shape, typename WarpMmaTensorOp::Shape, typename WarpMmaTensorOp::Policy::Operator::Shape, kPartitionsK, ElementOutput, kElementsPerAccess >::Type OutputTileThreadMap
Definition: default_epilogue_wmma_tensor_op.h:94
cutlass::epilogue::threadblock::Epilogue
Epilogue operator without splitk.
Definition: epilogue.h:74
fragment_iterator_wmma_tensor_op.h
This defines a "fragment" iterator for visiting the fragments of an accumulator tile that participate...
epilogue.h
Epilogue for threadblock scoped GEMMs using Tensor Ops.
cutlass::epilogue::threadblock::PredicatedTileIterator
Definition: epilogue/threadblock/predicated_tile_iterator.h:65
default_thread_map_wmma_tensor_op.h
cutlass::epilogue::threadblock::DefaultEpilogueWmmaTensorOp
Defines sensible defaults for epilogues for WMMA TensorOps.
Definition: default_epilogue_wmma_tensor_op.h:71
cutlass::epilogue::threadblock::DefaultEpilogueWmmaTensorOp::ElementAccumulator
typename WarpMmaTensorOp::ElementC ElementAccumulator
Definition: default_epilogue_wmma_tensor_op.h:81
cutlass::epilogue::threadblock::DefaultEpilogueWmmaTensorOp::kElementsPerAccess
static int const kElementsPerAccess
Definition: default_epilogue_wmma_tensor_op.h:77
cutlass::epilogue::warp::TileIteratorWmmaTensorOp
Template for reading and writing tiles of accumulators to shared memory.
Definition: tile_iterator_wmma_tensor_op.h:56
cutlass::epilogue::threadblock::SharedLoadIterator
Definition: shared_load_iterator.h:61
cutlass::epilogue::threadblock::DefaultEpilogueWmmaTensorOp::SharedLoadIterator
cutlass::epilogue::threadblock::SharedLoadIterator< typename OutputTileThreadMap::CompactedThreadMap, ElementAccumulator > SharedLoadIterator
Definition: default_epilogue_wmma_tensor_op.h:119
reduction_op.h
Functor performing reduction operations used by epilogues.
cutlass.h
Basic include for CUTLASS.
cutlass::epilogue::threadblock::DefaultEpilogueWmmaTensorOp::WarpMmaTensorOp
WarpMmaTensorOp_ WarpMmaTensorOp
Definition: default_epilogue_wmma_tensor_op.h:74
cutlass::epilogue::threadblock::DefaultEpilogueWmmaTensorOp::WarpTileIterator
cutlass::epilogue::warp::TileIteratorWmmaTensorOp< typename WarpMmaTensorOp::Shape, typename WarpMmaTensorOp::Policy::Operator::Shape, typename WarpMmaTensorOp::Policy::Operator::FragmentC, LayoutC > WarpTileIterator
Definition: default_epilogue_wmma_tensor_op.h:114