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/**
* @file aka_blas_lapack.hh
*
* @author Nicolas Richart <nicolas.richart@epfl.ch>
*
* @date creation: Wed Mar 06 2013
* @date last modification: Mon Jan 18 2016
*
* @brief Interface of the Fortran BLAS/LAPACK libraries
*
* @section LICENSE
*
* Copyright (©) 2014, 2015 EPFL (Ecole Polytechnique Fédérale de Lausanne)
* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
*
* Akantu is free software: you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option) any
* later version.
*
* Akantu is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
* A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
* details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Akantu. If not, see <http://www.gnu.org/licenses/>.
*
*/
/* -------------------------------------------------------------------------- */
#ifndef __AKANTU_AKA_BLAS_LAPACK_HH__
#define __AKANTU_AKA_BLAS_LAPACK_HH__
/* -------------------------------------------------------------------------- */
#ifdef AKANTU_USE_BLAS
#include "aka_fortran_mangling.hh"
extern "C" {
/* ------------------------------------------------------------------------ */
/* Double precision */
/* ------------------------------------------------------------------------ */
//LEVEL 1
double AKA_FC_GLOBAL(ddot, DDOT)(int *, double *, int *, double *, int *);
//LEVEL 2
void AKA_FC_GLOBAL(dgemv, DGEMV)(char *, int *, int *, double *, double *, int *,
double *, int *, double *, double *, int *);
//LEVEL 3
void AKA_FC_GLOBAL(dgemm, DGEMM)(char *, char *, int *, int *, int *, double *,
double *, int *, double *, int *, double *,
double *, int *);
/* ------------------------------------------------------------------------ */
/* Simple precision */
/* ------------------------------------------------------------------------ */
//LEVEL 1
float AKA_FC_GLOBAL(sdot, SDOT)(int *, float *, int *, float *, int *);
//LEVEL 2
void AKA_FC_GLOBAL(sgemv, SGEMV)(char *, int *, int *, float *, float *, int *,
float *, int *, float *, float *, int *);
//LEVEL 3
void AKA_FC_GLOBAL(sgemm, SGEMM)(char *, char *, int *, int *, int *, float *,
float *, int *, float *, int *, float *,
float *, int *);
}
#endif
__BEGIN_AKANTU__
#if defined(__INTEL_COMPILER)
//#pragma warning ( disable : 383 )
#elif defined (__clang__) // test clang to be sure that when we test for gnu it is only gnu
#elif (defined(__GNUC__) || defined(__GNUG__))
# define GCC_VERSION (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__)
# if GCC_VERSION > 40600
# pragma GCC diagnostic push
# endif
# pragma GCC diagnostic ignored "-Wunused"
#endif
/// Wrapper around the S/DDOT BLAS function that returns the dot product of two vectors
template<typename T>
inline T aka_dot(int *n, T *x, int *incx, T *y, int *incy) {
AKANTU_DEBUG_ERROR(debug::demangle(typeid(T).name()) << "is not a type recognized, or you didn't activated BLAS in the compilation options!");
}
/// Wrapper around the S/DGEMV BLAS function that computes matrix-vector product \f$y := \alpha A^{(T)}x + \beta y \f$
template<typename T>
inline void aka_gemv(char *trans, int *m, int *n, T *
alpha, T *a, int *lda, T *x, int *incx,
T *beta, T *y, int *incy) {
AKANTU_DEBUG_ERROR(debug::demangle(typeid(T).name()) << "is not a type recognized, or you didn't activated BLAS in the compilation options!");
}
/// Wrapper around the S/DGEMM BLAS function that computes the product of two matrices \f$C := \alpha A^{(T)} B^{(T)} + \beta C \f$
template<typename T>
inline void aka_gemm(char *transa, char *transb,
int *m, int *n, int *k,
T *alpha, T *a, int *lda,
T *b, int *ldb,
T *beta, T *c, int *ldc) {
AKANTU_DEBUG_ERROR(debug::demangle(typeid(T).name()) << "is not a type recognized, or you didn't activated BLAS in the compilation options!");
}
#if defined(AKANTU_USE_BLAS)
template<>
inline double aka_dot<double>(int *n, double *x, int *incx, double *y, int *incy) {
return AKA_FC_GLOBAL(ddot, DDOT)(n, x, incx, y, incy);
}
template<>
inline void aka_gemv<double>(char *trans, int *m, int *n, double *
alpha, double *a, int *lda, double *x, int *incx,
double *beta, double *y, int *incy) {
return AKA_FC_GLOBAL(dgemv, DGEMV)(trans, m, n, alpha, a, lda, x, incx,
beta, y, incy);
}
template<>
inline void aka_gemm<double>(char *transa, char *transb,
int *m, int *n, int *k,
double *alpha, double *a, int *lda,
double *b, int *ldb,
double *beta, double *c, int *ldc) {
AKA_FC_GLOBAL(dgemm, DGEMM)(transa, transb, m, n, k, alpha, a, lda,
b, ldb, beta, c, ldc);
}
/* -------------------------------------------------------------------------- */
/* -------------------------------------------------------------------------- */
template<>
inline float aka_dot<float>(int *n, float *x, int *incx, float *y, int *incy) {
return AKA_FC_GLOBAL(sdot, SDOT)(n, x, incx, y, incy);
}
template<>
inline void aka_gemv<float>(char *trans, int *m, int *n, float *
alpha, float *a, int *lda, float *x, int *incx,
float *beta, float *y, int *incy) {
AKA_FC_GLOBAL(sgemv, SGEMV)(trans, m, n, alpha, a, lda, x, incx,
beta, y, incy);
}
template<>
inline void aka_gemm<float>(char *transa, char *transb,
int *m, int *n, int *k,
float *alpha, float *a, int *lda,
float *b, int *ldb,
float *beta, float *c, int *ldc) {
AKA_FC_GLOBAL(sgemm, SGEMM)(transa, transb, m, n, k, alpha, a, lda,
b, ldb, beta, c, ldc);
}
#endif
__END_AKANTU__
#ifdef AKANTU_USE_LAPACK
#include "aka_fortran_mangling.hh"
extern "C" {
/* ------------------------------------------------------------------------ */
/* Double general matrix */
/* ------------------------------------------------------------------------ */
/// compute the eigenvalues/vectors
void AKA_FC_GLOBAL(dgeev, DGEEV)(char* jobvl, char* jobvr, int* n, double* a,
int* lda, double* wr, double* wi, double* vl, int* ldvl,
double* vr, int* ldvr, double* work, int* lwork, int* info);
/// LU decomposition of a general matrix
void AKA_FC_GLOBAL(dgetrf, DGETRF)(int* m, int *n,
double* a, int* lda,
int* ipiv, int* info);
/// generate inverse of a matrix given its LU decomposition
void AKA_FC_GLOBAL(dgetri, DGETRI)(int* n, double* a, int* lda,
int* ipiv, double* work, int* lwork, int* info);
/// solving A x = b using a LU factorization
void AKA_FC_GLOBAL(dgetrs, DGETRS)(char * trans, int * n, int * nrhs,
double * A, int * lda, int * ipiv,
double * b, int * ldb, int * info);
/* ------------------------------------------------------------------------ */
/* Simple general matrix */
/* ------------------------------------------------------------------------ */
/// compute the eigenvalues/vectors
void AKA_FC_GLOBAL(sgeev, SGEEV)(char* jobvl, char* jobvr, int* n, float* a,
int* lda, float* wr, float* wi, float* vl, int* ldvl,
float* vr, int* ldvr, float* work, int* lwork, int* info);
/// LU decomposition of a general matrix
void AKA_FC_GLOBAL(sgetrf, SGETRF)(int* m, int *n,
float* a, int* lda,
int* ipiv, int* info);
/// generate inverse of a matrix given its LU decomposition
void AKA_FC_GLOBAL(sgetri, SGETRI)(int* n, float* a, int* lda,
int* ipiv, float* work, int* lwork, int* info);
/// solving A x = b using a LU factorization
void AKA_FC_GLOBAL(sgetrs, SGETRS)(char * trans, int * n, int * nrhs,
float * A, int * lda, int * ipiv,
float * b, int * ldb, int * info);
}
#endif //AKANTU_USE_LAPACK
__BEGIN_AKANTU__
/// Wrapper around the S/DGEEV BLAS function that computes the eigenvalues and eigenvectors of a matrix
template<typename T>
inline void aka_geev(char* jobvl, char* jobvr, int* n, T* a,
int* lda, T* wr, T* wi, T* vl, int* ldvl,
T* vr, int* ldvr, T* work, int* lwork, int* info) {
AKANTU_DEBUG_ERROR(debug::demangle(typeid(T).name()) << "is not a type recognized, or you didn't activated LAPACK in the compilation options!");
}
/// Wrapper around the S/DGETRF BLAS function that computes the LU decomposition of a matrix
template<typename T>
inline void aka_getrf(int* m, int *n,
T* a, int* lda,
int* ipiv, int* info) {
AKANTU_DEBUG_ERROR(debug::demangle(typeid(T).name()) << "is not a type recognized, or you didn't activated LAPACK in the compilation options!");
}
/// Wrapper around the S/DGETRI BLAS function that computes the inverse of a matrix given its LU decomposition
template<typename T>
inline void aka_getri(int* n, T* a, int* lda,
int* ipiv, T* work, int* lwork, int* info) {
AKANTU_DEBUG_ERROR(debug::demangle(typeid(T).name()) << "is not a type recognized, or you didn't activated LAPACK in the compilation options!");
}
/// Wrapper around the S/DGETRS BLAS function that solves \f$A^{(T)}x = b\f$ using LU decomposition
template<typename T>
inline void aka_getrs(char *trans, int * n, int * nrhs,
T * A, int * lda, int * ipiv,
T * b, int * ldb, int * info) {
AKANTU_DEBUG_ERROR(debug::demangle(typeid(T).name()) << "is not a type recognized, or you didn't activated LAPACK in the compilation options!");
}
#if defined(__INTEL_COMPILER)
//#pragma warning ( disable : 383 )
#elif defined (__clang__) // test clang to be sure that when we test for gnu it is only gnu
#elif defined(__GNUG__)
# if GCC_VERSION > 40600
# pragma GCC diagnostic pop
# else
# pragma GCC diagnostic warning "-Wunused"
# endif
#endif
#ifdef AKANTU_USE_LAPACK
template<>
inline void aka_geev<double>(char* jobvl, char* jobvr, int* n, double* a,
int* lda, double* wr, double* wi, double* vl, int* ldvl,
double* vr, int* ldvr, double* work, int* lwork, int* info) {
AKA_FC_GLOBAL(dgeev, DGEEV)(jobvl, jobvr, n, a,
lda, wr, wi, vl, ldvl,
vr, ldvr, work, lwork, info);
}
template<>
inline void aka_getrf<double>(int* m, int *n,
double* a, int* lda,
int* ipiv, int* info) {
AKA_FC_GLOBAL(dgetrf, DGETRF)(m, n, a, lda, ipiv, info);
}
template<>
inline void aka_getri<double>(int* n, double* a, int* lda,
int* ipiv, double* work, int* lwork, int* info) {
AKA_FC_GLOBAL(dgetri, DGETRI)(n, a, lda, ipiv, work, lwork, info);
}
template<>
inline void aka_getrs<double>(char *trans, int * n, int * nrhs,
double * A, int * lda, int * ipiv,
double * b, int * ldb, int * info) {
AKA_FC_GLOBAL(dgetrs, DGETRS)(trans, n, nrhs, A, lda, ipiv, b, ldb, info);
}
/* -------------------------------------------------------------------------- */
/* -------------------------------------------------------------------------- */
template<>
inline void aka_geev<float>(char* jobvl, char* jobvr, int* n, float* a,
int* lda, float* wr, float* wi, float* vl, int* ldvl,
float* vr, int* ldvr, float* work, int* lwork, int* info) {
AKA_FC_GLOBAL(sgeev, SGEEV)(jobvl, jobvr, n, a,
lda, wr, wi, vl, ldvl,
vr, ldvr, work, lwork, info);
}
template<>
inline void aka_getrf<float>(int* m, int *n,
float* a, int* lda,
int* ipiv, int* info) {
AKA_FC_GLOBAL(sgetrf, SGETRF)(m, n, a, lda, ipiv, info);
}
template<>
inline void aka_getri<float>(int* n, float* a, int* lda,
int* ipiv, float* work, int* lwork, int* info) {
AKA_FC_GLOBAL(sgetri, SGETRI)(n, a, lda, ipiv, work, lwork, info);
}
template<>
inline void aka_getrs<float>(char *trans, int * n, int * nrhs,
float * A, int * lda, int * ipiv,
float * b, int * ldb, int * info) {
AKA_FC_GLOBAL(sgetrs, SGETRS)(trans, n, nrhs, A, lda, ipiv, b, ldb, info);
}
#endif
__END_AKANTU__
#endif /* __AKANTU_AKA_BLAS_LAPACK_HH__ */
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