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tensor_op_policy.h
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31 #pragma once
32
33 #include "cutlass/matrix_shape.h"
34 #include "cutlass/layout/matrix.h"
35
37
38 namespace cutlass {
39 namespace epilogue {
40 namespace warp {
41
43
45 template <
46typename WarpShape,
47typename OperatorShape,
48typename Layout
49 >
50 struct TensorOpPolicy;
51
53
55 template <
56typename WarpShape,
57typename OperatorShape
58 >
59 struct TensorOpPolicy<WarpShape, OperatorShape, layout::RowMajor> {
60
62using OperatorCount = MatrixShape<
63 WarpShape::kM / OperatorShape::kM,
64 WarpShape::kN / OperatorShape::kN
65 >;
66
67//
68// Hard-coded constants regarding Tensor Operations
69//
70
71static int const kElementsPerAccess = 2;
72static int const kRowsPerIteration = 8;
73
74//
75// Derived quantities
76//
77
78// Number of 'externally visible' iterations per actual instruction
79static int const kIterationsPerInstruction = OperatorShape::kM / kRowsPerIteration;
80
81// Number of externally visible iterations
82static int const kIterations = OperatorCount::kRow * kIterationsPerInstruction;
83
84static int const kAccumulatorRowStride = kElementsPerAccess;
85static int const kAccumulatorColumnStride = kElementsPerAccess * OperatorCount::kRow * kIterationsPerInstruction;
86 };
87
89
91 template <
92typename WarpShape,
93typename OperatorShape,
94int InterleavedK
95 >
96 struct TensorOpPolicy<WarpShape, OperatorShape,
97 layout::ColumnMajorInterleaved<InterleavedK> > {
99using OperatorCount = MatrixShape<WarpShape::kM / OperatorShape::kM,
100 WarpShape::kN / OperatorShape::kN>;
101
102//
103// Hard-coded constants regarding Tensor Operations
104//
105
106static int const kElementsPerAccess = 2;
107static int const kRowsPerIteration = 8;
108
109//
110// Derived quantities
111//
112
113// Number of 'externally visible' iterations per actual instruction
114static int const kIterationsPerInstruction =
115 OperatorShape::kM / kRowsPerIteration;
116
117// Number of externally visible iterations
118static int const kIterations = WarpShape::kN / InterleavedK *
119 OperatorCount::kRow *
120 kIterationsPerInstruction;
121 };
122
124
125 } // namespace warp
126 } // namespace epilogue
127 } // namespace cutlass
128
Describes the size of a matrix tile.
Definition: matrix_shape.h:42
Definition: aligned_buffer.h:35
Defines a Shape template for matrix tiles.
cutlass::epilogue::warp::TensorOpPolicy
Policy details related to the epilogue.
Definition: tensor_op_policy.h:50
Defines layout functions used by TensorRef and derived classes.
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