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121 lines
4.8 KiB
C++
121 lines
4.8 KiB
C++
/***************************************************************************************************
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* Copyright (c) 2017 - 2022 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
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* SPDX-License-Identifier: BSD-3-Clause
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*
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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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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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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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* and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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**************************************************************************************************/
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/*! \file
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\brief Templates exposing architecture support for multiply-add operations
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*/
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#pragma once
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#include "cutlass_extensions/weight_only_quant_op.h"
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/////////////////////////////////////////////////////////////////////////////////////////////////
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namespace cutlass
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{
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namespace arch
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{
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// Tag which triggers MMA which will trigger
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struct OpMultiplyAddDequantizeInterleavedBToA;
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/*
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Below we have extra tags to signal what kind of dequantization we want to do
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(per col, scale only fine grained, finegrained with zero). This still lets us
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the existing template infrastructure (incl. that in CUTLASS). However, we
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split out the template below into OpMultiplyAddDequantizeInterleavedBToA along
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with the quantization op before instantiating the GEMM pieces.
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Note that this is somewhat of a hack, but it SIGNIFICANTLY reduces the amount of
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code we need to duplicate.
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*/
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struct OpMultiplyAddDequantizeInterleavedBToA_percol_scale;
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struct OpMultiplyAddDequantizeInterleavedBToA_fine_scale;
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struct OpMultiplyAddDequantizeInterleavedBToA_fine_scalebias;
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// The default just forwards the original operator
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template <typename MmaOp, WeightOnlyQuantOp QuantOp_>
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struct TagOperator
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{
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using TaggedOperator = MmaOp;
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};
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// Specializations below attach more information to the operator
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template <>
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struct TagOperator<OpMultiplyAddDequantizeInterleavedBToA, WeightOnlyQuantOp::PER_COLUMN_SCALE_ONLY>
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{
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using TaggedOperator = OpMultiplyAddDequantizeInterleavedBToA_percol_scale;
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};
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template <>
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struct TagOperator<OpMultiplyAddDequantizeInterleavedBToA, WeightOnlyQuantOp::FINEGRAINED_SCALE_ONLY>
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{
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using TaggedOperator = OpMultiplyAddDequantizeInterleavedBToA_fine_scale;
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};
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template <>
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struct TagOperator<OpMultiplyAddDequantizeInterleavedBToA, WeightOnlyQuantOp::FINEGRAINED_SCALE_AND_ZEROS>
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{
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using TaggedOperator = OpMultiplyAddDequantizeInterleavedBToA_fine_scalebias;
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};
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// Here we instantiate some structs to "detag" the tagged operator. It splits it back to the original
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// operator + the extra information. If no extra info was tagged, the dequant op per column scaling
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// as a default.
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template <typename TaggedMmaOp>
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struct DetagOperator
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{
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using Operator = TaggedMmaOp;
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static constexpr WeightOnlyQuantOp QuantOp = WeightOnlyQuantOp::PER_COLUMN_SCALE_ONLY;
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};
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template <>
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struct DetagOperator<OpMultiplyAddDequantizeInterleavedBToA_percol_scale>
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{
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using Operator = OpMultiplyAddDequantizeInterleavedBToA;
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static constexpr WeightOnlyQuantOp QuantOp = WeightOnlyQuantOp::PER_COLUMN_SCALE_ONLY;
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};
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template <>
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struct DetagOperator<OpMultiplyAddDequantizeInterleavedBToA_fine_scale>
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{
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using Operator = OpMultiplyAddDequantizeInterleavedBToA;
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static constexpr WeightOnlyQuantOp QuantOp = WeightOnlyQuantOp::FINEGRAINED_SCALE_ONLY;
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};
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template <>
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struct DetagOperator<OpMultiplyAddDequantizeInterleavedBToA_fine_scalebias>
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{
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using Operator = OpMultiplyAddDequantizeInterleavedBToA;
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static constexpr WeightOnlyQuantOp QuantOp = WeightOnlyQuantOp::FINEGRAINED_SCALE_AND_ZEROS;
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};
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} // namespace arch
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} // namespace cutlass
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