64 lines
3.0 KiB
C++
64 lines
3.0 KiB
C++
/**
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* Copyright (c) 2025 Huawei Technologies Co., Ltd.
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* This program is free software, you can redistribute it and/or modify it under the terms and conditions of
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* CANN Open Software License Agreement Version 2.0 (the "License").
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* Please refer to the License for details. You may not use this file except in compliance with the License.
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED,
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* INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR A PARTICULAR PURPOSE.
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* See LICENSE in the root of the software repository for the full text of the License.
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*/
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/*!
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* \file tiling_key.h
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* \brief
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*/
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#pragma once
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#include <cstdint>
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namespace Ops {
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namespace Transformer {
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namespace OpTiling {
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constexpr uint64_t RecursiveSum()
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{
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return 0;
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}
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constexpr uint64_t kBase = 10; // 10进制进位基数
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template <typename T, typename... Args> constexpr uint64_t RecursiveSum(T templateId, Args... templateIds)
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{
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return static_cast<uint64_t>(templateId) + kBase * RecursiveSum(templateIds...);
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}
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// TilingKey 的生成规则：
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// FlashAttentionScore/FlashAttentionScoreGrad 十进制位组装tiling key，包含以下关键参数，从低位到高位依次是：Ub0, Ub1,
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// Block, DataType, Format, Sparse, 特化模板 Ub0、Ub1:
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// 表示Ub核内切分的轴，使用枚举AxisEnum表示，因为我们允许最多切分两根轴，所以存在UB0和UB1，如果没有UB核内切分，
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// 那么填AXIS_NONE。UB0和UB1各占一个十进制位;
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// Block: 表示UB用来分核的轴，使用枚举AxisEnum表示，占一个十进制位;
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// DataType: 表示当前tiling key支持的输入输出的数据类型，使用枚举SupportedDtype来表示，占一个十进制位
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// Format: 表示当前tiling key支持的Format, 使用枚举InputLayout表示，占一个十进制位
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// Sparse: 表示当前tiling key是否支持Sparse，使用枚举SparseCapability表示，占一个十进制位
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// 其余特化场景，定义自己的位域和值
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// usage: get tilingKey from inputted types
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// uint64_t tilingKey = GET_FLASHATTENTION_TILINGKEY(AxisEnum::AXIS_S1, AxisEnum::AXIS_S2, AxisEnum::AXIS_N2,
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// SupportedDtype::FLOAT32, InputLayout::BSH, SparseCapability::SUPPORT_ALL)
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constexpr uint64_t TILINGKEYOFFSET = uint64_t(10000000000000000000UL); // 10^19
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template <typename... Args> constexpr uint64_t GET_TILINGKEY(Args... templateIds)
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{
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return TILINGKEYOFFSET + RecursiveSum(templateIds...);
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}
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// usage: get tilingKey from inputted types
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// uint64_t tilingKey = TILINGKEY(S2, S1, N2, FLOAT32, BSND, ALL)
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#define TILINGKEY(ub2, ub1, block, dtype, layout, sparse) \
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(GET_TILINGKEY(AxisEnum::ub2, AxisEnum::ub1, AxisEnum::block, DtypeEnum::dtype, LayoutEnum::layout, \
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SparseEnum::sparse))
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} // namespace Optiling
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} // namespace Transformer
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} // namespace Ops
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