283 lines
7.5 KiB
C++
283 lines
7.5 KiB
C++
// SPDX-License-Identifier: Apache-2.0
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//
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// Copyright 2008-2016 Conrad Sanderson (http://conradsanderson.id.au)
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// Copyright 2008-2016 National ICT Australia (NICTA)
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// ------------------------------------------------------------------------
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#if defined(ARMA_USE_ATLAS)
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// TODO: remove support for ATLAS in next major version
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//! \namespace atlas namespace for ATLAS functions
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namespace atlas
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{
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template<typename eT>
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inline static const eT& tmp_real(const eT& X) { return X; }
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template<typename T>
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inline static const T tmp_real(const std::complex<T>& X) { return X.real(); }
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template<typename eT>
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arma_inline
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eT
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cblas_asum(const int N, const eT* X)
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{
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arma_type_check((is_supported_blas_type<eT>::value == false));
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if(is_float<eT>::value)
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{
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typedef float T;
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return eT( arma_wrapper(cblas_sasum)(N, (const T*)X, 1) );
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}
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else
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if(is_double<eT>::value)
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{
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typedef double T;
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return eT( arma_wrapper(cblas_dasum)(N, (const T*)X, 1) );
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}
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return eT(0);
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}
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template<typename eT>
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arma_inline
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eT
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cblas_nrm2(const int N, const eT* X)
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{
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arma_type_check((is_supported_blas_type<eT>::value == false));
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if(is_float<eT>::value)
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{
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typedef float T;
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return eT( arma_wrapper(cblas_snrm2)(N, (const T*)X, 1) );
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}
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else
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if(is_double<eT>::value)
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{
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typedef double T;
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return eT( arma_wrapper(cblas_dnrm2)(N, (const T*)X, 1) );
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}
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return eT(0);
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}
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template<typename eT>
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arma_inline
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eT
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cblas_dot(const int N, const eT* X, const eT* Y)
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{
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arma_type_check((is_supported_blas_type<eT>::value == false));
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if(is_float<eT>::value)
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{
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typedef float T;
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return eT( arma_wrapper(cblas_sdot)(N, (const T*)X, 1, (const T*)Y, 1) );
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}
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else
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if(is_double<eT>::value)
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{
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typedef double T;
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return eT( arma_wrapper(cblas_ddot)(N, (const T*)X, 1, (const T*)Y, 1) );
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}
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return eT(0);
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}
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template<typename eT>
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arma_inline
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eT
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cblas_cx_dot(const int N, const eT* X, const eT* Y)
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{
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arma_type_check((is_supported_blas_type<eT>::value == false));
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if(is_cx_float<eT>::value)
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{
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typedef typename std::complex<float> T;
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T out;
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arma_wrapper(cblas_cdotu_sub)(N, (const T*)X, 1, (const T*)Y, 1, &out);
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return eT(out);
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}
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else
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if(is_cx_double<eT>::value)
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{
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typedef typename std::complex<double> T;
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T out;
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arma_wrapper(cblas_zdotu_sub)(N, (const T*)X, 1, (const T*)Y, 1, &out);
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return eT(out);
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}
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return eT(0);
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}
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template<typename eT>
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inline
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void
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cblas_gemv
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(
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const atlas_CBLAS_LAYOUT layout, const atlas_CBLAS_TRANS TransA,
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const int M, const int N,
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const eT alpha,
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const eT *A, const int lda,
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const eT *X, const int incX,
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const eT beta,
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eT *Y, const int incY
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)
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{
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arma_type_check((is_supported_blas_type<eT>::value == false));
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if(is_float<eT>::value)
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{
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typedef float T;
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arma_wrapper(cblas_sgemv)(layout, TransA, M, N, (const T)tmp_real(alpha), (const T*)A, lda, (const T*)X, incX, (const T)tmp_real(beta), (T*)Y, incY);
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}
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else
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if(is_double<eT>::value)
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{
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typedef double T;
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arma_wrapper(cblas_dgemv)(layout, TransA, M, N, (const T)tmp_real(alpha), (const T*)A, lda, (const T*)X, incX, (const T)tmp_real(beta), (T*)Y, incY);
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}
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else
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if(is_cx_float<eT>::value)
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{
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typedef std::complex<float> T;
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arma_wrapper(cblas_cgemv)(layout, TransA, M, N, (const T*)&alpha, (const T*)A, lda, (const T*)X, incX, (const T*)&beta, (T*)Y, incY);
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}
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else
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if(is_cx_double<eT>::value)
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{
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typedef std::complex<double> T;
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arma_wrapper(cblas_zgemv)(layout, TransA, M, N, (const T*)&alpha, (const T*)A, lda, (const T*)X, incX, (const T*)&beta, (T*)Y, incY);
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}
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}
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template<typename eT>
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inline
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void
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cblas_gemm
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(
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const atlas_CBLAS_LAYOUT layout, const atlas_CBLAS_TRANS TransA,
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const atlas_CBLAS_TRANS TransB, const int M, const int N,
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const int K, const eT alpha, const eT *A,
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const int lda, const eT *B, const int ldb,
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const eT beta, eT *C, const int ldc
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)
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{
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arma_type_check((is_supported_blas_type<eT>::value == false));
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if(is_float<eT>::value)
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{
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typedef float T;
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arma_wrapper(cblas_sgemm)(layout, TransA, TransB, M, N, K, (const T)tmp_real(alpha), (const T*)A, lda, (const T*)B, ldb, (const T)tmp_real(beta), (T*)C, ldc);
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}
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else
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if(is_double<eT>::value)
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{
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typedef double T;
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arma_wrapper(cblas_dgemm)(layout, TransA, TransB, M, N, K, (const T)tmp_real(alpha), (const T*)A, lda, (const T*)B, ldb, (const T)tmp_real(beta), (T*)C, ldc);
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}
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else
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if(is_cx_float<eT>::value)
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{
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typedef std::complex<float> T;
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arma_wrapper(cblas_cgemm)(layout, TransA, TransB, M, N, K, (const T*)&alpha, (const T*)A, lda, (const T*)B, ldb, (const T*)&beta, (T*)C, ldc);
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}
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else
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if(is_cx_double<eT>::value)
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{
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typedef std::complex<double> T;
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arma_wrapper(cblas_zgemm)(layout, TransA, TransB, M, N, K, (const T*)&alpha, (const T*)A, lda, (const T*)B, ldb, (const T*)&beta, (T*)C, ldc);
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}
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}
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template<typename eT>
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inline
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void
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cblas_syrk
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(
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const atlas_CBLAS_LAYOUT layout, const atlas_CBLAS_UPLO Uplo, const atlas_CBLAS_TRANS Trans,
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const int N, const int K, const eT alpha,
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const eT* A, const int lda, const eT beta, eT* C, const int ldc
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)
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{
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arma_type_check((is_supported_blas_type<eT>::value == false));
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if(is_float<eT>::value)
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{
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typedef float T;
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arma_wrapper(cblas_ssyrk)(layout, Uplo, Trans, N, K, (const T)alpha, (const T*)A, lda, (const T)beta, (T*)C, ldc);
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}
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else
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if(is_double<eT>::value)
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{
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typedef double T;
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arma_wrapper(cblas_dsyrk)(layout, Uplo, Trans, N, K, (const T)alpha, (const T*)A, lda, (const T)beta, (T*)C, ldc);
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}
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}
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template<typename T>
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inline
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void
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cblas_herk
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(
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const atlas_CBLAS_LAYOUT layout, const atlas_CBLAS_UPLO Uplo, const atlas_CBLAS_TRANS Trans,
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const int N, const int K, const T alpha,
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const std::complex<T>* A, const int lda, const T beta, std::complex<T>* C, const int ldc
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)
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{
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arma_type_check((is_supported_blas_type<T>::value == false));
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if(is_float<T>::value)
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{
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typedef float TT;
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typedef std::complex<float> cx_TT;
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arma_wrapper(cblas_cherk)(layout, Uplo, Trans, N, K, (const TT)alpha, (const cx_TT*)A, lda, (const TT)beta, (cx_TT*)C, ldc);
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}
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else
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if(is_double<T>::value)
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{
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typedef double TT;
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typedef std::complex<double> cx_TT;
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arma_wrapper(cblas_zherk)(layout, Uplo, Trans, N, K, (const TT)alpha, (const cx_TT*)A, lda, (const TT)beta, (cx_TT*)C, ldc);
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}
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}
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}
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#endif
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