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