wmma_sm75.h
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#pragma once
#include <assert.h>
#include "cutlass/layout/matrix.h"
namespace cutlass {
namespace arch {
//
// WMMA template structure defines nvcuda::wmma::fragments and static assert for
// wmma native instruction sizes supported for cutlass::int4b_t (experimental::s4).
//
template <
typename Shape_,
typename LayoutA_,
typename LayoutB_,
typename LayoutC_>
struct Wmma<
Shape_,
cutlass::int4b_t,
LayoutA_,
cutlass::int4b_t,
LayoutB_,
int32_t,
LayoutC_,
cutlass::arch::OpMultiplyAdd
> {
#if defined(CUTLASS_ARCH_WMMA_SM75_ENABLED)
using Shape = Shape_;
using ElementA = cutlass::int4b_t;
using LayoutA = LayoutA_;
using ElementB = cutlass::int4b_t;
using LayoutB = LayoutB_;
using ElementC = int32_t;
using LayoutC = LayoutC_;
using Operator = cutlass::arch::OpMultiplyAdd;
// check supported wmma shape for the given multiplicand data types
static_assert(
platform::is_same<cutlass::gemm::GemmShape<8, 8, 32>, Shape>::value,
"Supported list of wmma operator shape for s8 multiplicands is: 8x8x32");
// Wmma Fragment
using FragmentA = nvcuda::wmma::fragment<
nvcuda::wmma::matrix_a,
Shape::kM,
Shape::kN,
Shape::kK,
typename CutlassToWmmaDataType<ElementA>::Type,
typename CutlassToWmmaLayout<LayoutA>::Layout>;
using FragmentB = nvcuda::wmma::fragment<
nvcuda::wmma::matrix_b,
Shape::kM,
Shape::kN,
Shape::kK,
typename CutlassToWmmaDataType<ElementB>::Type,
typename CutlassToWmmaLayout<LayoutB>::Layout>;
using FragmentC = nvcuda::wmma::fragment<
nvcuda::wmma::accumulator,
Shape::kM,
Shape::kN,
Shape::kK,
typename CutlassToWmmaDataType<ElementC>::Type>;
CUTLASS_DEVICE
void operator()(
FragmentC &D,
FragmentA const &A,
FragmentB const &B,
FragmentC const &C) const {
nvcuda::wmma::mma_sync(D, A, B, C);
}
#else
static_assert(false, "wmma.mma.sync interger type multiplicands is avialable only for SM75 and beyond");
#endif
};
//
// WMMA template structure defines nvcuda::wmma::fragments and static assert for
// wmma native instruction sizes supported for cutlass::uint1b_t (experimental::b1)
// (nvcuda::wmma targetting SASS instruction BMMA)
//
template <
typename Shape_,
typename LayoutA_,
typename LayoutB_,
typename LayoutC_>
struct Wmma<
Shape_,
cutlass::uint1b_t,
LayoutA_,
cutlass::uint1b_t,
LayoutB_,
int32_t,
LayoutC_,
cutlass::arch::OpXorPopc
> {
#if defined(CUTLASS_ARCH_WMMA_SM75_ENABLED)
using Shape = Shape_;
using ElementA = cutlass::uint1b_t;
using LayoutA = LayoutA_;
using ElementB = cutlass::uint1b_t;
using LayoutB = LayoutB_;
using ElementC = int32_t;
using LayoutC = LayoutC_;
using Operator = cutlass::arch::OpXorPopc;
// check supported wmma shape for the given multiplicand data types
static_assert(
platform::is_same<cutlass::gemm::GemmShape<8, 8, 128>, Shape>::value,
"Supported list of wmma operator shape for b1 multiplicands is: 8x8x128");
// Wmma Fragment
using FragmentA = nvcuda::wmma::fragment<
nvcuda::wmma::matrix_a,
Shape::kM,
Shape::kN,
Shape::kK,
typename CutlassToWmmaDataType<ElementA>::Type,
typename CutlassToWmmaLayout<LayoutA>::Layout>;
using FragmentB = nvcuda::wmma::fragment<
nvcuda::wmma::matrix_b,
Shape::kM,
Shape::kN,
Shape::kK,
typename CutlassToWmmaDataType<ElementB>::Type,
typename CutlassToWmmaLayout<LayoutB>::Layout>;
using FragmentC = nvcuda::wmma::fragment<
nvcuda::wmma::accumulator,
Shape::kM,
Shape::kN,
Shape::kK,
typename CutlassToWmmaDataType<ElementC>::Type>;
CUTLASS_DEVICE
void operator()(
FragmentC &D,
FragmentA const &A,
FragmentB const &B,
FragmentC const &C) const {
nvcuda::wmma::bmma_sync(D, A, B, C, nvcuda::wmma::experimental::bmmaBitOpXOR,
nvcuda::wmma::experimental::bmmaAccumulateOpPOPC);
}
#else
static_assert(false, "wmma.mma.sync interger type multiplicands is avialable only for SM75 and beyond");
#endif
};
} // namespace arch
} // namespace cutlass
cutlass
Definition: aligned_buffer.h:35
cutlass::platform::is_same
std::is_same (false specialization)
Definition: platform.h:394
cutlass::uint1b_t
integer_subbyte< 1, false > uint1b_t
1-bit Unsigned integer type
Definition: integer_subbyte.h:152
cutlass::integer_subbyte
4-bit signed integer type
Definition: integer_subbyte.h:42
cutlass::gemm::GemmShape
Shape of a matrix multiply-add operation.
Definition: include/cutlass/gemm/gemm.h:57
static_assert
#define static_assert(__e, __m)
Definition: platform.h:153
matrix.h
Defines layout functions used by TensorRef and derived classes.
cutlass::int4b_t
integer_subbyte< 4, true > int4b_t
4-bit Integer type
Definition: integer_subbyte.h:155