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>
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Ali Hassani
co-authored by
Ali Hassani
Haicheng Wu
Ali Hassani
Haicheng Wu
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13f413493a
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/***************************************************************************************************
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* Copyright (c) 2017 - 2023 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
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* SPDX-License-Identifier: BSD-3-Clause
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* 3. Neither the name of the copyright holder nor the names of its
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*
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**************************************************************************************************/
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/*! \file
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\brief
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Defines a Stream-K GEMM that can broadcast a bias vector in the epilogue.
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Similar structure to DefaultGemmWithBroadcast, but uses its own epilogue
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(DefaultStreamkEpilogueWithBroadcastTensorOp) and its own GEMM kernel
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(GemmStreamkWithFusedEpilogue).
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*/
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#pragma once
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#include "cutlass/cutlass.h"
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#include "cutlass/gemm/kernel/gemm_streamk_with_fused_epilogue.h"
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#include "cutlass/gemm/kernel/default_gemm_universal.h"
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#include "cutlass/epilogue/threadblock/default_epilogue_with_broadcast.h"
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#include "cutlass/epilogue/threadblock/epilogue_with_broadcast.h"
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/////////////////////////////////////////////////////////////////////////////////////////////////
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namespace cutlass {
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namespace gemm {
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namespace kernel {
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/////////////////////////////////////////////////////////////////////////////////////////////////
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template <
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/// Element type for A matrix operand
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typename ElementA_,
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/// Layout type for A matrix operand
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typename LayoutA_,
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/// Complex elementwise transformation on A operand
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ComplexTransform TransformA,
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/// Access granularity of A matrix in units of elements
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int kAlignmentA,
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/// Element type for B matrix operand
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typename ElementB_,
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/// Layout type for B matrix operand
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typename LayoutB_,
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/// Complex elementwise transformation on B operand
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ComplexTransform TransformB,
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/// Access granularity of B matrix in units of elements
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int kAlignmentB,
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/// Element type for C and D matrix operands
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typename ElementC_,
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/// Layout type for C and D matrix operands
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typename LayoutC_,
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/// Element type for internal accumulation
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typename ElementAccumulator,
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/// Operator class tag
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typename OperatorClass,
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/// Tag indicating architecture to tune for
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typename ArchTag,
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/// Threadblock-level tile size (concept: GemmShape)
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typename ThreadblockShape,
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/// Warp-level tile size (concept: GemmShape)
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typename WarpShape,
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/// Warp-level tile size (concept: GemmShape)
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typename InstructionShape,
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/// Epilogue output operator - must satisfy concept of 'EpilogueWithBroadcastOp'
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typename EpilogueOutputOp,
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/// Threadblock-level swizzling operator
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typename ThreadblockSwizzle,
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/// Number of stages used in the pipelined mainloop
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int Stages,
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/// Operation performed by GEMM
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typename Operator,
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///
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typename Enable = void
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>
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struct DefaultGemmStreamkWithBroadcast {
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using GemmBase = typename DefaultGemmUniversal<
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ElementA_, LayoutA_, TransformA, kAlignmentA,
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ElementB_, LayoutB_, TransformB, kAlignmentB,
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ElementC_, LayoutC_, ElementAccumulator,
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OperatorClass,
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ArchTag,
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ThreadblockShape,
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WarpShape,
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InstructionShape,
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EpilogueOutputOp,
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ThreadblockSwizzle,
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Stages,
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Operator
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>::GemmKernel;
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// Replace epilogue
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using Epilogue = typename cutlass::epilogue::threadblock::DefaultStreamkEpilogueWithBroadcastTensorOp<
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typename GemmBase::Epilogue::Shape,
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typename GemmBase::Epilogue::WarpMmaOperator,
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GemmBase::Epilogue::kPartitionsK,
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ElementC_,
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typename EpilogueOutputOp::ElementT,
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typename EpilogueOutputOp::ElementVector,
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EpilogueOutputOp,
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GemmBase::Epilogue::kElementsPerAccess
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>::Epilogue;
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// Compose the GEMM kernel
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using GemmKernel = GemmStreamkWithFusedEpilogue<
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typename GemmBase::Mma,
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Epilogue,
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ThreadblockSwizzle
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>;
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};
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/////////////////////////////////////////////////////////////////////////////////////////////////
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} // namespace kernel
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} // namespace gemm
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} // namespace cutlass
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/////////////////////////////////////////////////////////////////////////////////////////////////
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