cutlass/include/cutlass/gemm/kernel/default_gemm_streamk_with_broadcast.h
Ali Hassani 13f413493a
Stream-K with broadcast (#892)
* [WIP] GEMM StreamK w/ Fused Epilogue

* Adds Gemm Streamk with Fused Epilogue kernel level struct.
  * Mostly based on Gemm with Fused Epilogue,
  * Requires a new epilogue
  * Work in progress

* [WIP] StreamK support for GemmUniversalWithBroadcast

* Just based off of how StreamK is allowed in GemmUniversal
  * Untested and a work in progress

* Minor fixes

* [WIP] It compiles!

It is almost certainly incorrect, but we're past getting the templates
to match, so checkpointing.

* Correction to reference kernel

* Fix typo

* Added MSE measurement

* Switch back to reference kernel + host for loop

Still WIP. Now we're getting even a larger MSE, but it's both on
basic Split-K and Stream-K.

* Fix typos

* Fix broadcast vector + requested changes

* Comment typo

* Small int option and more

* Fix incorrect condition on source needed

* Requested changes

* I think I got it?

* Bias vector should be stride 0

* Two source added!

* Typos

* Merge examples

* Bring back vector row offset

Just to ensure consistency with universal gemm with fused epilogue

* Base arguments and params structs for StreamK

* StreamK epilogue with broadcast now inherits the original

* undo params_streamk_base.h

---------

Co-authored-by: Ali Hassani <ahassanijr@gmail.com>
Co-authored-by: Haicheng Wu <haichengw@nvidia.com>
2023-05-22 19:05:06 -04:00

147 lines
5.3 KiB
C++

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/*! \file
\brief
Defines a Stream-K GEMM that can broadcast a bias vector in the epilogue.
Similar structure to DefaultGemmWithBroadcast, but uses its own epilogue
(DefaultStreamkEpilogueWithBroadcastTensorOp) and its own GEMM kernel
(GemmStreamkWithFusedEpilogue).
*/
#pragma once
#include "cutlass/cutlass.h"
#include "cutlass/gemm/kernel/gemm_streamk_with_fused_epilogue.h"
#include "cutlass/gemm/kernel/default_gemm_universal.h"
#include "cutlass/epilogue/threadblock/default_epilogue_with_broadcast.h"
#include "cutlass/epilogue/threadblock/epilogue_with_broadcast.h"
/////////////////////////////////////////////////////////////////////////////////////////////////
namespace cutlass {
namespace gemm {
namespace kernel {
/////////////////////////////////////////////////////////////////////////////////////////////////
template <
/// Element type for A matrix operand
typename ElementA_,
/// Layout type for A matrix operand
typename LayoutA_,
/// Complex elementwise transformation on A operand
ComplexTransform TransformA,
/// Access granularity of A matrix in units of elements
int kAlignmentA,
/// Element type for B matrix operand
typename ElementB_,
/// Layout type for B matrix operand
typename LayoutB_,
/// Complex elementwise transformation on B operand
ComplexTransform TransformB,
/// Access granularity of B matrix in units of elements
int kAlignmentB,
/// Element type for C and D matrix operands
typename ElementC_,
/// Layout type for C and D matrix operands
typename LayoutC_,
/// Element type for internal accumulation
typename ElementAccumulator,
/// Operator class tag
typename OperatorClass,
/// Tag indicating architecture to tune for
typename ArchTag,
/// Threadblock-level tile size (concept: GemmShape)
typename ThreadblockShape,
/// Warp-level tile size (concept: GemmShape)
typename WarpShape,
/// Warp-level tile size (concept: GemmShape)
typename InstructionShape,
/// Epilogue output operator - must satisfy concept of 'EpilogueWithBroadcastOp'
typename EpilogueOutputOp,
/// Threadblock-level swizzling operator
typename ThreadblockSwizzle,
/// Number of stages used in the pipelined mainloop
int Stages,
/// Operation performed by GEMM
typename Operator,
///
typename Enable = void
>
struct DefaultGemmStreamkWithBroadcast {
using GemmBase = typename DefaultGemmUniversal<
ElementA_, LayoutA_, TransformA, kAlignmentA,
ElementB_, LayoutB_, TransformB, kAlignmentB,
ElementC_, LayoutC_, ElementAccumulator,
OperatorClass,
ArchTag,
ThreadblockShape,
WarpShape,
InstructionShape,
EpilogueOutputOp,
ThreadblockSwizzle,
Stages,
Operator
>::GemmKernel;
// Replace epilogue
using Epilogue = typename cutlass::epilogue::threadblock::DefaultStreamkEpilogueWithBroadcastTensorOp<
typename GemmBase::Epilogue::Shape,
typename GemmBase::Epilogue::WarpMmaOperator,
GemmBase::Epilogue::kPartitionsK,
ElementC_,
typename EpilogueOutputOp::ElementT,
typename EpilogueOutputOp::ElementVector,
EpilogueOutputOp,
GemmBase::Epilogue::kElementsPerAccess
>::Epilogue;
// Compose the GEMM kernel
using GemmKernel = GemmStreamkWithFusedEpilogue<
typename GemmBase::Mma,
Epilogue,
ThreadblockSwizzle
>;
};
/////////////////////////////////////////////////////////////////////////////////////////////////
} // namespace kernel
} // namespace gemm
} // namespace cutlass
/////////////////////////////////////////////////////////////////////////////////////////////////