fragment_iterator_complex_tensor_op.h
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#pragma once
#include "cutlass/array.h"
#include "cutlass/layout/matrix.h"
#include "cutlass/epilogue/warp/tensor_op_policy.h"
namespace cutlass {
namespace epilogue {
namespace warp {
template <
typename WarpShape,
typename OperatorShape,
typename OperatorElementC,
typename OperatorFragmentC,
typename Layout
>
class FragmentIteratorComplexTensorOp;
template <
typename WarpShape_,
typename OperatorShape_,
typename OperatorElementC_,
typename OperatorFragmentC_
>
class FragmentIteratorComplexTensorOp<WarpShape_, OperatorShape_, OperatorElementC_, OperatorFragmentC_, layout::RowMajor> {
public:
using WarpShape = WarpShape_;
using OperatorShape = OperatorShape_;
using OperatorElementC = OperatorElementC_;
using OperatorFragmentC = OperatorFragmentC_;
using Layout = layout::RowMajor;
using Policy = TensorOpPolicy<WarpShape, OperatorShape, Layout>;
using Fragment = Array<
complex<OperatorElementC>,
Policy::OperatorCount::kColumn * Policy::kElementsPerAccess>;
static int const kRealIndex = 0;
static int const kImaginaryIndex =
OperatorFragmentC::kElements * Policy::OperatorCount::kRow * Policy::OperatorCount::kColumn;
using AccumulatorTile = Array<OperatorElementC, 2 * kImaginaryIndex>;
using OutputAccumulatorTile = Array<complex<OperatorElementC>, kImaginaryIndex>;
static int const kIterations = Policy::kIterations;
private:
using AccessType = Array<OperatorElementC, Policy::kElementsPerAccess>;
using FragmentAccessType = Array<complex<OperatorElementC>, Policy::kElementsPerAccess>;
private:
//
// Data members
//
AccessType const *accumulators_;
int index_;
public:
CUTLASS_HOST_DEVICE
FragmentIteratorComplexTensorOp(AccumulatorTile const &accum):
accumulators_(reinterpret_cast<AccessType const *>(&accum)),
index_(0) {
}
CUTLASS_HOST_DEVICE
FragmentIteratorComplexTensorOp &operator++() {
++index_;
return *this;
}
CUTLASS_HOST_DEVICE
FragmentIteratorComplexTensorOp &operator--() {
--index_;
return *this;
}
CUTLASS_HOST_DEVICE
void load(Fragment &frag, int index_offset = 0) const {
int index = index_ + index_offset;
FragmentAccessType *frag_ptr = reinterpret_cast<FragmentAccessType *>(&frag);
CUTLASS_PRAGMA_UNROLL
for (int n = 0; n < Policy::OperatorCount::kColumn; ++n) {
int accumulator_access_offset =
index + n * Policy::kAccumulatorColumnStride / Policy::kElementsPerAccess;
auto const & real_accum_array = accumulators_[accumulator_access_offset + kRealIndex];
auto const & imag_accum_array = accumulators_[accumulator_access_offset + kImaginaryIndex / Policy::kElementsPerAccess];
// Pack real and imaginary parts into a structure. This is likely to result in MOVs
CUTLASS_PRAGMA_UNROLL
for (int i = 0; i < Policy::kElementsPerAccess; ++i) {
frag_ptr[n][i].real() = real_accum_array[i];
frag_ptr[n][i].imag() = imag_accum_array[i];
}
}
}
};
} // namespace warp
} // namespace epilogue
} // namespace cutlass
cutlass
Definition: aligned_buffer.h:35
cutlass::epilogue::warp::FragmentIteratorComplexTensorOp< WarpShape_, OperatorShape_, OperatorElementC_, OperatorFragmentC_, layout::RowMajor >::Fragment
Array< complex< OperatorElementC >, Policy::OperatorCount::kColumn *Policy::kElementsPerAccess > Fragment
This is the fragment size produced by one access of the iterator.
Definition: fragment_iterator_complex_tensor_op.h:87
tensor_op_policy.h
Defines basic structures needed for implementing the warp-scoped phase of the epilogue. These quantities assume a &#39;column-major&#39; arrangement of TensorOp instructions, of which a row-oriented slice is visible per iteration.
cutlass::epilogue::warp::FragmentIteratorComplexTensorOp< WarpShape_, OperatorShape_, OperatorElementC_, OperatorFragmentC_, layout::RowMajor >::AccumulatorTile
Array< OperatorElementC, 2 *kImaginaryIndex > AccumulatorTile
This is the complete warp-level accumulator tile.
Definition: fragment_iterator_complex_tensor_op.h:96
cutlass::epilogue::warp::FragmentIteratorComplexTensorOp< WarpShape_, OperatorShape_, OperatorElementC_, OperatorFragmentC_, layout::RowMajor >::operator++
CUTLASS_HOST_DEVICE FragmentIteratorComplexTensorOp & operator++()
Increments.
Definition: fragment_iterator_complex_tensor_op.h:135
cutlass::epilogue::warp::FragmentIteratorComplexTensorOp< WarpShape_, OperatorShape_, OperatorElementC_, OperatorFragmentC_, layout::RowMajor >::FragmentIteratorComplexTensorOp
CUTLASS_HOST_DEVICE FragmentIteratorComplexTensorOp(AccumulatorTile const &accum)
Constructs an iterator.
Definition: fragment_iterator_complex_tensor_op.h:127
array.h
Statically sized array of elements that accommodates all CUTLASS-supported numeric types and is safe ...
cutlass::epilogue::warp::FragmentIteratorComplexTensorOp< WarpShape_, OperatorShape_, OperatorElementC_, OperatorFragmentC_, layout::RowMajor >::WarpShape
WarpShape_ WarpShape
Definition: fragment_iterator_complex_tensor_op.h:76
CUTLASS_PRAGMA_UNROLL
#define CUTLASS_PRAGMA_UNROLL
Definition: cutlass.h:110
cutlass::epilogue::warp::FragmentIteratorComplexTensorOp< WarpShape_, OperatorShape_, OperatorElementC_, OperatorFragmentC_, layout::RowMajor >::operator--
CUTLASS_HOST_DEVICE FragmentIteratorComplexTensorOp & operator--()
Decrements.
Definition: fragment_iterator_complex_tensor_op.h:142
cutlass::epilogue::warp::FragmentIteratorComplexTensorOp
Definition: fragment_iterator_complex_tensor_op.h:61
cutlass::epilogue::warp::TensorOpPolicy
Policy details related to the epilogue.
Definition: tensor_op_policy.h:50
cutlass::epilogue::warp::FragmentIteratorComplexTensorOp< WarpShape_, OperatorShape_, OperatorElementC_, OperatorFragmentC_, layout::RowMajor >::OutputAccumulatorTile
Array< complex< OperatorElementC >, kImaginaryIndex > OutputAccumulatorTile
This is the complete warp-level accumulator tile.
Definition: fragment_iterator_complex_tensor_op.h:99
CUTLASS_HOST_DEVICE
#define CUTLASS_HOST_DEVICE
Definition: cutlass.h:89
cutlass::epilogue::warp::FragmentIteratorComplexTensorOp< WarpShape_, OperatorShape_, OperatorElementC_, OperatorFragmentC_, layout::RowMajor >::load
CUTLASS_HOST_DEVICE void load(Fragment &frag, int index_offset=0) const
Loads a fragment from the referenced part of the accumulator tile.
Definition: fragment_iterator_complex_tensor_op.h:149
cutlass::layout::RowMajor
Mapping function for row-major matrices.
Definition: layout/matrix.h:50
cutlass::complex
Definition: complex.h:92
matrix.h
Defines layout functions used by TensorRef and derived classes.