* Copyright (c) 2025 Huawei Technologies Co., Ltd.
* This program is free software, you can redistribute it and/or modify it under the terms and conditions of
* CANN Open Software License Agreement Version 2.0 (the "License").
* Please refer to the License for details. You may not use this file except in compliance with the License.
* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED,
* INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR A PARTICULAR PURPOSE.
* See LICENSE in the root of the software repository for the full text of the License.
*/
* \file cos.h
* \brief Defines a series of interface used to do elementwise math cos calculation.
* Formula: cos(x) = (-1)^k*sin(x0 + �/2), sin(x) = xP(x)
* The Cos function does not have an elementary function expression, first normalize (x0 + �/2) to [-�/2, �/2]
* and then calculating by function approximation.
* k=round(x/� + 1/2), x0=x-k�, x0 belongs to [-�, 0], (x0 + �/2) belongs to [-�/2, �/2]
* �=�_0+�_1+�_2+�_3+�_4 achieve final precision compensation.
* Final solution锛?
* k = round(x * invpi + 1/2)
* x -= k * pi_0
* x -= k * pi_1
* x = x + COS_PI_DOWN
* x -= k * pi_2
* x -= k * pi_3
* x -= k * pi_4
* x = x + COS_PI_RESDOWN_ADDS_NEG
* P(x) = (((x^2 * R0 + R1) * x^2 + R2) * x^2 + R3) * x^2 + 1.0
* COS_PI_DOWN = 1.57079637050628662109375
* COS_PI_RESDOWN_ADDS_NEG = -0.00000004371139000189375
* R0 = 2.604926501e-6
* R1 = -0.0001980894471
* R2 = 0.008333049340
* R3 = -0.1666665792
*/
#if !defined(__ASCENDC_INCLUDE_INTERNAL_HEADERS__)
#define __ASCENDC_INCLUDE_INTERNAL_HEADERS__
#define __UNDEF_ASCENDC_INCLUDE_INTERNAL_HEADERS_COS_H__
#endif
#ifndef LIB_MATH_COS_H
#define LIB_MATH_COS_H
#if defined(__NPU_ARCH__) && (__NPU_ARCH__ == 2201 || __NPU_ARCH__ == 2002 || __NPU_ARCH__ == 3510 || \
__NPU_ARCH__ == 5102 || __NPU_ARCH__ == 3003 || __NPU_ARCH__ == 3113)
#include "kernel_tensor.h"
#if defined(__NPU_ARCH__) && (__NPU_ARCH__ == 2002 || __NPU_ARCH__ == 2201)
#include "../../../impl/adv_api/detail/math/cos/cos_common_impl.h"
#elif defined(__NPU_ARCH__) && (__NPU_ARCH__ == 3510 || __NPU_ARCH__ == 5102 || \
__NPU_ARCH__ == 3003 || __NPU_ARCH__ == 3113)
#include "cos_utils.h"
#include "../../../impl/adv_api/detail/math/cos/cos_c310_impl.h"
#endif
namespace AscendC {
#pragma begin_pipe(V)
#if defined(__NPU_ARCH__) && (__NPU_ARCH__ == 3510 || __NPU_ARCH__ == 5102 || __NPU_ARCH__ == 3003 || \
__NPU_ARCH__ == 3113)
* \ingroup Cos
* \brief compute Cos elementwisely
* \tparam T: half/float
* \tparam isReuseSource: whether allows API to modify source data, usually for performance reason, only support
* float input data type
* \param [out] dstTensor: output LocalTensor
* \param [in] srcTensor: input LocalTensor
* \param [in] sharedTmpBuffer: extra temporary shared space used for intermediate values among calculation process,
* whose required space size should refer to corresponding tiling API, which is defined at cos_tiling.h.
* Generally, the more space you allocate, the better performance you will achieve, and the performance
* reaches peak when buffer size is maximum(calculated by tiling function). Moreover, it is not guaranteed
* that the shared space will be cleared after usage, the data could be anything.
* \note src/dst Tensor must be 32B aligned, and it doesn't allow src/dst/sharedTmpBuffer tensor address overlap.
* Input data valid range should be [-65504, 65504]
*/
template <typename T, bool isReuseSource = false, const CosConfig &config = defaultCosConfig>
__aicore__ inline void Cos(const LocalTensor<T>& dstTensor, const LocalTensor<T>& srcTensor,
const LocalTensor<uint8_t>& sharedTmpBuffer)
{
Cos<T, isReuseSource, config>(dstTensor, srcTensor, sharedTmpBuffer, srcTensor.GetSize());
}
* \ingroup Cos
* \brief compute Cos elementwisely
* \tparam T: half/float
* \tparam isReuseSource: whether allows API to modify source data, usually for performance reason
* \param [out] dstTensor: output LocalTensor
* \param [in] srcTensor: input LocalTensor
* \param [in] sharedTmpBuffer: extra temporary shared space used for intermediate values among calculation process,
* whose required space size should refer to corresponding tiling API, which is defined at cos_tiling.h.
* Generally, the more space you allocate, the better performance you will achieve, and the performance
* reaches peak when buffer size is maximum(calculated by tiling function). Moreover, it is not guaranteed
* that the shared space will be cleared after usage, the data could be anything.
* \param [in] calCount: the number of elements to be processed.
* \note src/dst Tensor must be 32B aligned, and it doesn't allow src/dst/sharedTmpBuffer tensor address overlap.
* Input data valid range should be [-65504, 65504]
*/
template<typename T, bool isReuseSource = false, const CosConfig &config = defaultCosConfig>
__aicore__ inline void Cos(const LocalTensor<T>& dstTensor, const LocalTensor<T>& srcTensor,
const LocalTensor<uint8_t>& sharedTmpBuffer, const uint32_t calCount)
{
CosImpl<T, isReuseSource, config>(dstTensor, srcTensor, sharedTmpBuffer, calCount);
}
* \ingroup Cos
* \brief compute Cos elementwisely
* \tparam T: half/float
* \tparam isReuseSource: whether allows API to modify source data, usually for performance reason
* \param [out] dstTensor: output LocalTensor
* \param [in] srcTensor: input LocalTensor
* \note src/dst Tensor must be 32B aligned, and it doesn't allow src/dst/sharedTmpBuffer tensor address overlap.
* Input data valid range should be [-65504, 65504]
*/
template <typename T, bool isReuseSource = false, const CosConfig &config = defaultCosConfig>
__aicore__ inline void Cos(const LocalTensor<T>& dstTensor, const LocalTensor<T>& srcTensor)
{
Cos<T, isReuseSource, config>(dstTensor, srcTensor, srcTensor.GetSize());
}
* \ingroup Cos
* \brief compute Cos elementwisely
* \tparam T: half/float
* \tparam isReuseSource: whether allows API to modify source data, usually for performance reason
* \param [out] dstTensor: output LocalTensor
* \param [in] srcTensor: input LocalTensor
* \param [in] calCount: the number of elements to be processed.
* \note src/dst Tensor must be 32B aligned, and it doesn't allow src/dst/sharedTmpBuffer tensor address overlap.
* Input data valid range should be [-65504, 65504]
*/
template<typename T, bool isReuseSource = false, const CosConfig &config = defaultCosConfig>
__aicore__ inline void Cos(const LocalTensor<T>& dstTensor, const LocalTensor<T>& srcTensor,
const uint32_t calCount)
{
CosImpl<T, isReuseSource, config>(dstTensor, srcTensor, calCount);
}
#else
* \ingroup Cos
* \brief compute Cos elementwisely
* \tparam T: half/float
* \tparam isReuseSource: whether allows API to modify source data, usually for performance reason, only support
* float input data type
* \param [out] dstTensor: output LocalTensor
* \param [in] srcTensor: input LocalTensor
* \param [in] sharedTmpBuffer: extra temporary shared space used for intermediate values among calculation process,
* whose required space size should refer to corresponding tiling API, which is defined at cos_tiling.h.
* Generally, the more space you allocate, the better performance you will achieve, and the performance
* reaches peak when buffer size is maximum(calculated by tiling function). Moreover, it is not guaranteed
* that the shared space will be cleared after usage, the data could be anything.
* \note src/dst Tensor must be 32B aligned, and it doesn't allow src/dst/sharedTmpBuffer tensor address overlap.
* Input data valid range should be [-65504, 65504]
*/
template <typename T, bool isReuseSource = false>
__aicore__ inline void Cos(const LocalTensor<T>& dstTensor, const LocalTensor<T>& srcTensor,
const LocalTensor<uint8_t>& sharedTmpBuffer)
{
Cos<T, isReuseSource>(dstTensor, srcTensor, sharedTmpBuffer, srcTensor.GetSize());
}
* \ingroup Cos
* \brief compute Cos elementwisely
* \tparam T: half/float
* \tparam isReuseSource: whether allows API to modify source data, usually for performance reason
* \param [out] dstTensor: output LocalTensor
* \param [in] srcTensor: input LocalTensor
* \param [in] sharedTmpBuffer: extra temporary shared space used for intermediate values among calculation process,
* whose required space size should refer to corresponding tiling API, which is defined at cos_tiling.h.
* Generally, the more space you allocate, the better performance you will achieve, and the performance
* reaches peak when buffer size is maximum(calculated by tiling function). Moreover, it is not guaranteed
* that the shared space will be cleared after usage, the data could be anything.
* \param [in] calCount: the number of elements to be processed.
* \note src/dst Tensor must be 32B aligned, and it doesn't allow src/dst/sharedTmpBuffer tensor address overlap.
* Input data valid range should be [-65504, 65504]
*/
template <typename T, bool isReuseSource = false>
__aicore__ inline void Cos(const LocalTensor<T>& dstTensor, const LocalTensor<T>& srcTensor,
const LocalTensor<uint8_t>& sharedTmpBuffer, const uint32_t calCount)
{
CosImpl<T, isReuseSource>(dstTensor, srcTensor, sharedTmpBuffer, calCount);
}
* \ingroup Cos
* \brief compute Cos elementwisely
* \tparam T: half/float
* \tparam isReuseSource: whether allows API to modify source data, usually for performance reason
* \param [out] dstTensor: output LocalTensor
* \param [in] srcTensor: input LocalTensor
* \note src/dst Tensor must be 32B aligned, and it doesn't allow src/dst/sharedTmpBuffer tensor address overlap.
* Input data valid range should be [-65504, 65504]
*/
template <typename T, bool isReuseSource = false>
__aicore__ inline void Cos(const LocalTensor<T>& dstTensor, const LocalTensor<T>& srcTensor)
{
Cos<T, isReuseSource>(dstTensor, srcTensor, srcTensor.GetSize());
}
* \ingroup Cos
* \brief compute Cos elementwisely
* \tparam T: half/float
* \tparam isReuseSource: whether allows API to modify source data, usually for performance reason
* \param [out] dstTensor: output LocalTensor
* \param [in] srcTensor: input LocalTensor
* \param [in] calCount: the number of elements to be processed.
* \note src/dst Tensor must be 32B aligned, and it doesn't allow src/dst/sharedTmpBuffer tensor address overlap.
* Input data valid range should be [-65504, 65504]
*/
template <typename T, bool isReuseSource = false>
__aicore__ inline void Cos(const LocalTensor<T>& dstTensor, const LocalTensor<T>& srcTensor,
const uint32_t calCount)
{
CosImpl<T, isReuseSource>(dstTensor, srcTensor, calCount);
}
#endif
#pragma end_pipe
}
#endif
#endif
#if defined(__UNDEF_ASCENDC_INCLUDE_INTERNAL_HEADERS_COS_H__)
#undef __ASCENDC_INCLUDE_INTERNAL_HEADERS__
#undef __UNDEF_ASCENDC_INCLUDE_INTERNAL_HEADERS_COS_H__
#endif
