CUTLASS: default_epilogue_simt.h Source File

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default_epilogue_simt.h
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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_simt.h"
48 #include "cutlass/epilogue/warp/tile_iterator_simt.h"
49 #include "cutlass/epilogue/threadblock/default_thread_map_simt.h"
50
51 #include "cutlass/epilogue/threadblock/predicated_tile_iterator.h"
52 #include "cutlass/epilogue/threadblock/shared_load_iterator.h"
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 WarpMmaSimt_,
67 typename OutputOp_,
68 int ElementsPerAccess
69 >
70 struct DefaultEpilogueSimt {
71
72 using Shape = Shape_;
73 using WarpMmaSimt = WarpMmaSimt_;
74 using OutputOp = OutputOp_;
75 static int const kElementsPerAccess = ElementsPerAccess;
76 static const int kPartitionsK = Shape::kK / WarpMmaSimt::Shape::kK;
77
78 using ElementOutput = typename OutputOp::ElementOutput;
79 using LayoutC = typename WarpMmaSimt::LayoutC;
80 using ElementAccumulator = typename WarpMmaSimt::ElementC;
81
82 //
83 // Thread map
84 //
85
86 using OutputTileThreadMap = typename cutlass::epilogue::threadblock::DefaultThreadMapSimt<
87 Shape,
88 typename WarpMmaSimt::Shape,
89 typename WarpMmaSimt::Policy,
90 kPartitionsK,
91 ElementOutput,
92 kElementsPerAccess
93 >::Type;
94
95 using OutputTileIterator = cutlass::epilogue::threadblock::PredicatedTileIterator<
96 OutputTileThreadMap,
97 ElementOutput
98 >;
99
100 using AccumulatorFragmentIterator = cutlass::epilogue::warp::FragmentIteratorSimt<
101 typename WarpMmaSimt::Shape,
102 typename WarpMmaSimt::ThreadMma,
103 layout::RowMajor,
104 typename WarpMmaSimt::Policy
105 >;
106
107 using WarpTileIterator = cutlass::epilogue::warp::TileIteratorSimt<
108 typename WarpMmaSimt::Shape,
109 typename WarpMmaSimt::ThreadMma,
110 ElementAccumulator,
111 layout::RowMajor,
112 typename WarpMmaSimt::Policy
113 >;
114
115 using SharedLoadIterator = cutlass::epilogue::threadblock::SharedLoadIterator<
116 typename OutputTileThreadMap::CompactedThreadMap,
117 ElementAccumulator
118 >;
119
121 using Padding = typename WarpTileIterator::Padding;
122
123 //
124 // Define the epilogue
125 //
126 using Epilogue = cutlass::epilogue::threadblock::Epilogue<
127 Shape,
128 WarpMmaSimt,
129 kPartitionsK,
130 OutputTileIterator,
131 AccumulatorFragmentIterator,
132 WarpTileIterator,
133 SharedLoadIterator,
134 OutputOp,
135 Padding
136 >;
137 };
138
140
141 } // namespace threadblock
142 } // namespace epilogue
143 } // namespace cutlass
144
regular_tile_iterator_pitch_linear.h
Templates implementing loading of tiles from pitch-linear rank=2 tensors.
cutlass
Definition: aligned_buffer.h:35
tile_iterator_simt.h
cutlass::epilogue::threadblock::DefaultEpilogueSimt
Defines sensible defaults for epilogues for SimtOps.
Definition: default_epilogue_simt.h:70
cutlass::epilogue::threadblock::DefaultEpilogueSimt::kElementsPerAccess
static int const kElementsPerAccess
Definition: default_epilogue_simt.h:75
predicated_tile_iterator.h
Epilogue for threadblock scoped GEMMs using Tensor Ops.
cutlass::epilogue::threadblock::DefaultEpilogueSimt::kPartitionsK
static const int kPartitionsK
Definition: default_epilogue_simt.h:76
gemm.h
Defines common types used for all GEMM-like operators.
conversion_op.h
Functor performing conversion operations used by epilogues.
cutlass::epilogue::threadblock::DefaultEpilogueSimt::SharedLoadIterator
cutlass::epilogue::threadblock::SharedLoadIterator< typename OutputTileThreadMap::CompactedThreadMap, ElementAccumulator > SharedLoadIterator
Definition: default_epilogue_simt.h:118
cutlass::epilogue::threadblock::DefaultEpilogueSimt::WarpMmaSimt
WarpMmaSimt_ WarpMmaSimt
Definition: default_epilogue_simt.h:73
cutlass::epilogue::threadblock::DefaultThreadMapSimt
Defines the optimal thread map for SIMT accumulator layouts.
Definition: default_thread_map_simt.h:52
array.h
Statically sized array of elements that accommodates all CUTLASS-supported numeric types and is safe ...
cutlass::epilogue::threadblock::DefaultEpilogueSimt::OutputOp
OutputOp_ OutputOp
Definition: default_epilogue_simt.h:74
linear_combination.h
Functor performing linear combination operations used by epilogues.
cutlass::epilogue::threadblock::DefaultEpilogueSimt::AccumulatorFragmentIterator
cutlass::epilogue::warp::FragmentIteratorSimt< typename WarpMmaSimt::Shape, typename WarpMmaSimt::ThreadMma, layout::RowMajor, typename WarpMmaSimt::Policy > AccumulatorFragmentIterator
Definition: default_epilogue_simt.h:105
cutlass::epilogue::threadblock::DefaultEpilogueSimt::LayoutC
typename WarpMmaSimt::LayoutC LayoutC
Definition: default_epilogue_simt.h:79
cutlass::epilogue::warp::FragmentIteratorSimt
Fragment iterator for SIMT accumulator arrangements.
Definition: fragment_iterator_simt.h:60
cutlass::epilogue::threadblock::DefaultEpilogueSimt::ElementAccumulator
typename WarpMmaSimt::ElementC ElementAccumulator
Definition: default_epilogue_simt.h:80
default_thread_map_simt.h
numeric_types.h
Top-level include for all CUTLASS numeric types.
fragment_iterator_simt.h
This defines a "fragment" iterator for visiting the fragments of an accumulator tile that participate...
shared_load_iterator.h
Epilogue for threadblock scoped GEMMs using Tensor Ops.
cutlass::epilogue::threadblock::DefaultEpilogueSimt::Padding
typename WarpTileIterator::Padding Padding
Hard-coded padding elements added.
Definition: default_epilogue_simt.h:121
cutlass::epilogue::threadblock::DefaultEpilogueSimt::Shape
Shape_ Shape
Definition: default_epilogue_simt.h:72
cutlass::layout::RowMajor
Mapping function for row-major matrices.
Definition: layout/matrix.h:50
cutlass::epilogue::threadblock::Epilogue
Epilogue operator without splitk.
Definition: epilogue.h:74
epilogue.h
Epilogue for threadblock scoped GEMMs using Tensor Ops.
cutlass::epilogue::threadblock::PredicatedTileIterator
Definition: epilogue/threadblock/predicated_tile_iterator.h:65
cutlass::epilogue::threadblock::DefaultEpilogueSimt::ElementOutput
typename OutputOp::ElementOutput ElementOutput
Definition: default_epilogue_simt.h:78
cutlass::epilogue::threadblock::DefaultEpilogueSimt::WarpTileIterator
cutlass::epilogue::warp::TileIteratorSimt< typename WarpMmaSimt::Shape, typename WarpMmaSimt::ThreadMma, ElementAccumulator, layout::RowMajor, typename WarpMmaSimt::Policy > WarpTileIterator
Definition: default_epilogue_simt.h:113
cutlass::epilogue::threadblock::SharedLoadIterator
Definition: shared_load_iterator.h:61
cutlass::epilogue::threadblock::DefaultEpilogueSimt::OutputTileIterator
cutlass::epilogue::threadblock::PredicatedTileIterator< OutputTileThreadMap, ElementOutput > OutputTileIterator
Definition: default_epilogue_simt.h:98
reduction_op.h
Functor performing reduction operations used by epilogues.
cutlass.h
Basic include for CUTLASS.
cutlass::epilogue::warp::TileIteratorSimt
Template for reading and writing tiles of accumulators to shared memory.
Definition: tile_iterator_simt.h:55
cutlass::epilogue::threadblock::DefaultEpilogueSimt::OutputTileThreadMap
typename cutlass::epilogue::threadblock::DefaultThreadMapSimt< Shape, typename WarpMmaSimt::Shape, typename WarpMmaSimt::Policy, kPartitionsK, ElementOutput, kElementsPerAccess >::Type OutputTileThreadMap
Definition: default_epilogue_simt.h:93