53 lines
2.0 KiB
C++
53 lines
2.0 KiB
C++
/**
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* Copyright (c) 2026 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 soft_max.h
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* \brief
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*/
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#ifndef SOFT_MAX_H
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#define SOFT_MAX_H
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#include "compressor_comm.h"
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#include "compressor_vector_comm.h"
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namespace Compressor {
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/**
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* @brief ColumnSoftMax 对矩阵按列进行SoftMax
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* @param dstLocal 输出tensor [row, col]，支持和srcLocal是同一块空间
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* @param srcLocal 输入tensor [row, col]
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* @param shareTmpUb 临时buffer 内部需要的空间为 [floor(row / 2) * col * sizeof(float)]
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* @param row 行数
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* @param col 列数
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*/
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__aicore__ inline void ColumnSoftMax(const LocalTensor<float> &dstLocal, const LocalTensor<float> &srcLocal,
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const LocalTensor<float> &shareTmpUb, uint32_t row, uint32_t col)
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{
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uint32_t dtypeMask = FP32_REPEAT_ELEMENT_NUM;
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uint32_t dLoop = col / dtypeMask;
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uint32_t dRemain = col % dtypeMask;
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uint8_t repeatStride = col / FP32_BLOCK_ELEMENT_NUM;
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ColumnMax(shareTmpUb, srcLocal, shareTmpUb, row, col);
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PipeBarrier<PIPE_V>();
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MatSubVec(dstLocal, srcLocal, shareTmpUb, {row, col, dtypeMask, dLoop, dRemain, repeatStride});
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PipeBarrier<PIPE_V>();
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Exp(dstLocal, dstLocal, row * col);
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PipeBarrier<PIPE_V>();
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ColumnSum(shareTmpUb, dstLocal, shareTmpUb, row, col);
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PipeBarrier<PIPE_V>();
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MatDivVec(dstLocal, dstLocal, shareTmpUb, {row, col, dtypeMask, dLoop, dRemain, repeatStride});
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}
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} // namespace Compressor
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#endif
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