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LA_library/noncblas.cc

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/* vim: set ts=8 sw=8 sts=8 noexpandtab cindent: */
/*******************************************************************************
LA: linear algebra C++ interface library
Copyright (C) 2008 Jiri Pittner <jiri.pittner@jh-inst.cas.cz> or <jiri@pittnerovi.com>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*******************************************************************************/
#include "noncblas.h"
#include "laerror.h"
#include "mat.h"
#include "fortran.h"
#ifdef NONCBLAS
//Level 1 - straightforward wrappers
extern "C" double FORNAME(ddot) (const FINT *n, const double *x, const FINT *incx, const double *y, const FINT *incy);
double cblas_ddot(const int N, const double *X, const int incX, const double *Y, const int incY){
#ifdef FORINT
const FINT ntmp=N;
const FINT incxtmp=incX;
const FINT incytmp=incY;
return FORNAME(ddot)(&ntmp,X,&incxtmp,Y,&incytmp);
#else
return FORNAME(ddot)(&N,X,&incX,Y,&incY);
#endif
}
extern "C" void FORNAME(dscal) (const FINT *n, const double *a, double *x, const FINT *incx);
void cblas_dscal(const int N, const double alpha, double *X, const int incX){
#ifdef FORINT
const FINT ntmp=N;
const FINT incxtmp=incX;
FORNAME(dscal) (&ntmp,&alpha,X,&incxtmp);
#else
FORNAME(dscal) (&N,&alpha,X,&incX);
#endif
}
extern "C" void FORNAME(dcopy) (const FINT *n, const double *x, const FINT *incx, double *y, const FINT *incy);
void cblas_dcopy(const int N, const double *X, const int incX, double *Y, const int incY){
#ifdef FORINT
const FINT ntmp=N;
const FINT incxtmp=incX;
const FINT incytmp=incY;
FORNAME(dcopy) (&ntmp,X,&incxtmp,Y,&incytmp);
#else
FORNAME(dcopy) (&N,X,&incX,Y,&incY);
#endif
}
extern "C" void FORNAME(daxpy) (const FINT *n, const double *a, const double *x, const FINT *incx, double *y, const FINT *incy);
void cblas_daxpy(const int N, const double alpha, const double *X, const int incX, double *Y, const int incY){
#ifdef FORINT
const FINT ntmp=N;
const FINT incxtmp=incX;
const FINT incytmp=incY;
FORNAME(daxpy) (&ntmp,&alpha,X,&incxtmp,Y,&incytmp);
#else
FORNAME(daxpy) (&N,&alpha,X,&incX,Y,&incY);
#endif
}
extern "C" double FORNAME(dnrm2) (const FINT *n, const double *x, const FINT *incx);
double cblas_dnrm2(const int N, const double *X, const int incX){
#ifdef FORINT
const FINT ntmp=N;
const FINT incxtmp=incX;
return FORNAME(dnrm2) (&ntmp,X,&incxtmp);
#else
return FORNAME(dnrm2) (&N,X,&incX);
#endif
}
extern "C" double FORNAME(dasum) (const FINT *n, const double *x, const FINT *incx);
double cblas_dasum(const int N, const double *X, const int incX){
#ifdef FORINT
const FINT ntmp=N;
const FINT incxtmp=incX;
return FORNAME(dasum) (&ntmp,X,&incxtmp);
#else
return FORNAME(dasum) (&N,X,&incX);
#endif
}
extern "C" void FORNAME(zcopy) (const FINT *n, const void *x, const FINT *incx, void *y, const FINT *incy);
void cblas_zcopy(const int N, const void *X, const int incX, void *Y, const int incY){
#ifdef FORINT
const FINT ntmp=N;
const FINT incxtmp=incX;
const FINT incytmp=incY;
FORNAME(zcopy) (&ntmp,X,&incxtmp,Y,&incytmp);
#else
FORNAME(zcopy) (&N,X,&incX,Y,&incY);
#endif
}
extern "C" void FORNAME(zaxpy) (const FINT *n, const void *a, const void *x, const FINT *incx, void *y, const FINT *incy);
void cblas_zaxpy(const int N, const void *alpha, const void *X, const int incX, void *Y, const int incY){
#ifdef FORINT
const FINT ntmp=N;
const FINT incxtmp=incX;
const FINT incytmp=incY;
FORNAME(zaxpy) (&ntmp,alpha,X,&incxtmp,Y,&incytmp);
#else
FORNAME(zaxpy) (&N,alpha,X,&incX,Y,&incY);
#endif
}
extern "C" void FORNAME(zscal) (const FINT *n, const void *a, void *x, const FINT *incx);
void cblas_zscal(const int N, const void *alpha, void *X, const int incX){
#ifdef FORINT
const FINT ntmp=N;
const FINT incxtmp=incX;
FORNAME(zscal)(&ntmp,alpha,X,&incxtmp);
#else
FORNAME(zscal)(&N,alpha,X,&incX);
#endif
}
extern "C" void FORNAME(zdscal) (const FINT *n, const double *a, void *x, const FINT *incx);
void cblas_zdscal(const int N, const double alpha, void *X, const int incX){
#ifdef FORINT
const FINT ntmp=N;
const FINT incxtmp=incX;
FORNAME(zdscal)(&ntmp,&alpha,X,&incxtmp);
#else
FORNAME(zdscal)(&N,&alpha,X,&incX);
#endif
}
extern "C" double FORNAME(dznrm2) (const FINT *n, const void *x, const FINT *incx);
double cblas_dznrm2(const int N, const void *X, const int incX){
#ifdef FORINT
const FINT ntmp=N;
const FINT incxtmp=incX;
return FORNAME(dznrm2) (&ntmp,X,&incxtmp);
#else
return FORNAME(dznrm2) (&N,X,&incX);
#endif
}
//the following ones are f2c-compatible, but is it truly portable???
extern "C" void FORNAME(zdotu) (void *retval, const FINT *n, const void *x, const FINT *incx, const void *y, const FINT *incy);
void cblas_zdotu_sub(const int N, const void *X, const int incX, const void *Y, const int incY, void *dotu){
#ifdef FORINT
const FINT ntmp=N;
const FINT incxtmp=incX;
const FINT incytmp=incY;
FORNAME(zdotu) (dotu,&ntmp,X,&incxtmp,Y,&incytmp);
#else
FORNAME(zdotu) (dotu,&N,X,&incX,Y,&incY);
#endif
}
extern "C" void FORNAME(zdotc) (void *retval, const FINT *n, const void *x, const FINT *incx, const void *y, const FINT *incy);
void cblas_zdotc_sub(const int N, const void *X, const int incX, const void *Y, const int incY, void *dotc){
#ifdef FORINT
const FINT ntmp=N;
const FINT incxtmp=incX;
const FINT incytmp=incY;
FORNAME(zdotc) (dotc,&ntmp,X,&incxtmp,Y,&incytmp);
#else
FORNAME(zdotc) (dotc,&N,X,&incX,Y,&incY);
#endif
}
//Level 2 and Level 3 on symmetric/hermitian packed matrices - straightforward
//enum CBLAS_UPLO {CblasUpper=121, CblasLower=122};
//enum CBLAS_ORDER {CblasRowMajor=101, CblasColMajor=102 };
//enum CBLAS_TRANSPOSE {CblasNoTrans=111, CblasTrans=112, CblasConjTrans=113, AtlasConj=114};
extern "C" void FORNAME(dspmv) (const char *uplo, const FINT *n, const double *alpha, const double *ap, const double *x, const FINT *incx, const double *beta, double *y, const FINT *incy);
void cblas_dspmv(const CBLAS_ORDER Order, const CBLAS_UPLO Uplo,
const int N, const double alpha, const double *Ap,
const double *X, const int incX,
const double beta, double *Y, const int incY)
{
if(Order!=CblasRowMajor) laerror("CblasRowMajor order asserted");
if(Uplo!=CblasLower) laerror("CblasLower uplo asserted");
char U = BLAS_FORTRANCASE('u');
#ifdef FORINT
const FINT ntmp=N;
const FINT incxtmp=incX;
const FINT incytmp=incY;
FORNAME(dspmv) (&U,&ntmp, &alpha, Ap, X, &incxtmp, &beta, Y, &incytmp);
#else
FORNAME(dspmv) (&U,&N, &alpha, Ap, X, &incX, &beta, Y, &incY);
#endif
}
extern "C" void FORNAME(zhpmv) (const char *uplo, const FINT *n, const void *alpha, const void *ap, const void *x, const FINT *incx, const void *beta, void *y, const FINT *incy);
void cblas_zhpmv(const CBLAS_ORDER Order, const CBLAS_UPLO Uplo,
const int N, const void *alpha, const void *Ap,
const void *X, const int incX,
const void *beta, void *Y, const int incY)
{
if(Order!=CblasRowMajor) laerror("CblasRowMajor order asserted");
if(Uplo!=CblasLower) laerror("CblasLower uplo asserted");
char U = BLAS_FORTRANCASE('u');
#ifdef FORINT
const FINT ntmp=N;
const FINT incxtmp=incX;
const FINT incytmp=incY;
FORNAME(zhpmv) (&U,&ntmp, alpha, Ap, X, &incxtmp, beta, Y, &incytmp);
#else
FORNAME(zhpmv) (&U,&N, alpha, Ap, X, &incX, beta, Y, &incY);
#endif
}
//Level 2 and Level 3 on general matrices - take into account the transposed storage of matrices in Fortran and C
extern "C" void FORNAME(dger) (const FINT *m, const FINT *n, const double *alpha, const double *x, const FINT *incx, const double *y, const FINT *incy, double *a, const FINT *lda);
void cblas_dger(const CBLAS_ORDER Order, const int M, const int N,
const double alpha, const double *X, const int incX,
const double *Y, const int incY, double *A, const int lda)
{
if(Order!=CblasRowMajor) laerror("CblasRowMajor order asserted");
//swap m-n, y-x
#ifdef FORINT
const FINT mtmp=M;
const FINT ntmp=N;
const FINT incxtmp=incX;
const FINT incytmp=incY;
const FINT ldatmp=lda;
FORNAME(dger) (&ntmp, &mtmp, &alpha, Y, &incytmp, X, &incxtmp, A, &ldatmp);
#else
FORNAME(dger) (&N, &M, &alpha, Y, &incY, X, &incX, A, &lda);
#endif
}
extern "C" void FORNAME(zgerc) (const FINT *m, const FINT *n, const void *alpha, const void *x, const FINT *incx, const void *y, const FINT *incy, void *a, const FINT *lda);
void cblas_zgerc(const CBLAS_ORDER Order, const int M, const int N,
const void *alpha, const void *X, const int incX,
const void *Y, const int incY, void *A, const int lda)
{
if(Order!=CblasRowMajor) laerror("CblasRowMajor order asserted");
//conjugate y
std::complex<double> *p;
p= (std::complex<double> *) Y; for(int i=0; i<N; ++i) {p->imag(-p->imag()); p+= incY;}
#ifdef FORINT
const FINT mtmp=M;
const FINT ntmp=N;
const FINT incxtmp=incX;
const FINT incytmp=incY;
const FINT ldatmp=lda;
FORNAME(zgerc) (&ntmp, &mtmp, alpha, Y, &incytmp, X, &incxtmp, A, &ldatmp);
#else
FORNAME(zgerc)(&N, &M, alpha, Y, &incY, X, &incX, A, &lda);
#endif
//conjugate y back
p= (std::complex<double> *) Y; for(int i=0; i<N; ++i) {p->imag(--p->imag()); p+= incY;}
}
extern "C" void FORNAME(zgeru) (const FINT *m, const FINT *n, const void *alpha, const void *x, const FINT *incx, const void *y, const FINT *incy, void *a, const FINT *lda);
void cblas_zgeru(const CBLAS_ORDER Order, const int M, const int N,
const void *alpha, const void *X, const int incX,
const void *Y, const int incY, void *A, const int lda)
{
if(Order!=CblasRowMajor) laerror("CblasRowMajor order asserted");
#ifdef FORINT
const FINT mtmp=M;
const FINT ntmp=N;
const FINT incxtmp=incX;
const FINT incytmp=incY;
const FINT ldatmp=lda;
FORNAME(zgeru) (&ntmp, &mtmp, alpha, Y, &incytmp, X, &incxtmp, A, &ldatmp);
#else
FORNAME(zgeru)(&N, &M, alpha, Y, &incY, X, &incX, A, &lda);
#endif
}
extern "C" void FORNAME(dgemm) (const char *transa, const char *transb, const FINT *m, const FINT *n, const FINT *k, const double *alpha, const double *a, const FINT *lda, const double *b, const FINT *ldb, const double *beta, double *c, const FINT *ldc);
void cblas_dgemm(const CBLAS_ORDER Order, const CBLAS_TRANSPOSE TransA,
const CBLAS_TRANSPOSE TransB, const int M, const int N,
const int K, const double alpha, const double *A,
const int lda, const double *B, const int ldb,
const double beta, double *C, const int ldc)
{
if(Order!=CblasRowMajor) laerror("CblasRowMajor order asserted");
//swap a-b, m-n
char transb = BLAS_FORTRANCASE(TransB==CblasNoTrans?'N':'T');
char transa = BLAS_FORTRANCASE(TransA==CblasNoTrans?'N':'T');
#ifdef FORINT
const FINT mtmp=M;
const FINT ntmp=N;
const FINT ktmp=K;
const FINT ldatmp=lda;
const FINT ldbtmp=ldb;
const FINT ldctmp=ldc;
FORNAME(dgemm) (&transb,&transa,
&ntmp, &mtmp, &ktmp, &alpha, B, &ldbtmp, A, &ldatmp, &beta, C, &ldctmp);
#else
FORNAME(dgemm) (&transb,&transa,
&N, &M, &K, &alpha, B, &ldb, A, &lda, &beta, C, &ldc);
#endif
}
extern "C" void FORNAME(zgemm) (const char *transa, const char *transb, const FINT *m, const FINT *n, const FINT *k, const void *alpha, const void *a, const FINT *lda, const void *b, const FINT *ldb, const void *beta, void *c, const FINT *ldc);
void cblas_zgemm(const CBLAS_ORDER Order, const CBLAS_TRANSPOSE TransA,
const CBLAS_TRANSPOSE TransB, const int M, const int N,
const int K, const void *alpha, const void *A,
const int lda, const void *B, const int ldb,
const void *beta, void *C, const int ldc)
{
if(Order!=CblasRowMajor) laerror("CblasRowMajor order asserted");
//swap a-b, m-n
char transb = BLAS_FORTRANCASE(TransB==CblasConjTrans?'C':(TransB==CblasNoTrans?'N':'T'));
char transa = BLAS_FORTRANCASE(TransA==CblasConjTrans?'C':(TransA==CblasNoTrans?'N':'T'));
#ifdef FORINT
const FINT mtmp=M;
const FINT ntmp=N;
const FINT ktmp=K;
const FINT ldatmp=lda;
const FINT ldbtmp=ldb;
const FINT ldctmp=ldc;
FORNAME(zgemm) (&transb,&transa,
&ntmp, &mtmp, &ktmp, alpha, B, &ldbtmp, A, &ldatmp, beta, C, &ldctmp);
#else
FORNAME(zgemm) ( &transb,&transa,
&N, &M, &K, alpha, B, &ldb, A, &lda, beta, C, &ldc);
#endif
}
extern "C" void FORNAME(dgemv) (const char *TRANS, const FINT *M, const FINT *N, const double *ALPHA, const double *A, const FINT *LDA, const double *X, const FINT *INCX, const double *BETA, double *Y, const FINT *INCY);
void cblas_dgemv(const CBLAS_ORDER Order,
const CBLAS_TRANSPOSE TransA, const int M, const int N,
const double alpha, const double *A, const int lda,
const double *X, const int incX, const double beta,
double *Y, const int incY)
{
char transa = BLAS_FORTRANCASE(TransA==CblasNoTrans?'N':'T');
char transax = BLAS_FORTRANCASE(TransA==CblasNoTrans?'T':'N');
#ifdef FORINT
const FINT mtmp=M;
const FINT ntmp=N;
const FINT ldatmp=lda;
const FINT incxtmp=incX;
const FINT incytmp=incY;
if(Order!=CblasRowMajor) FORNAME(dgemv) (&transa, &ntmp, &mtmp, &alpha, A, &ldatmp, X, &incxtmp, &beta, Y, &incytmp );
//swap n-m and toggle transposition
else FORNAME(dgemv) (&transax, &ntmp, &mtmp, &alpha, A, &ldatmp, X, &incxtmp, &beta, Y, &incytmp );
#else
if(Order!=CblasRowMajor) FORNAME(dgemv) (&transa, &N, &M, &alpha, A, &lda, X, &incX, &beta, Y, &incY );
//swap n-m and toggle transposition
else FORNAME(dgemv) (&transax, &N, &M, &alpha, A, &lda, X, &incX, &beta, Y, &incY );
#endif
}
extern "C" void FORNAME(zgemv) (const char *TRANS, const FINT *M, const FINT *N, const void *ALPHA, const void *A, const FINT *LDA, const void *X, const FINT *INCX, const void *BETA, void *Y, const FINT *INCY);
void cblas_zgemv(const CBLAS_ORDER Order,
const CBLAS_TRANSPOSE TransA, const int M, const int N,
const void *alpha, const void *A, const int lda,
const void *X, const int incX, const void *beta,
void *Y, const int incY)
{
if(Order!=CblasRowMajor) laerror("CblasRowMajor order asserted");
if(TransA == CblasConjTrans) laerror("zgemv with CblasConjTrans not supportted");
//swap n-m and toggle transposition
char transa = BLAS_FORTRANCASE(TransA==CblasNoTrans?'T':'N');
#ifdef FORINT
const FINT mtmp=M;
const FINT ntmp=N;
const FINT ldatmp=lda;
const FINT incxtmp=incX;
const FINT incytmp=incY;
FORNAME(zgemv) (&transa, &ntmp, &mtmp, alpha, A, &ldatmp, X, &incxtmp, beta, Y, &incytmp );
#else
FORNAME(zgemv) (&transa, &N, &M, alpha, A, &lda, X, &incX, beta, Y, &incY );
#endif
}
extern "C" FINT FORNAME(idamax) (const FINT *N, const double *DX, const FINT *INCX);
CBLAS_INDEX cblas_idamax(const int N, const double *X, const int incX) {
#ifdef FORINT
const FINT ntmp=N;
const FINT incxtmp=incX;
return (CBLAS_INDEX)FORNAME(idamax)(&ntmp,X,&incxtmp);
#else
return (CBLAS_INDEX)FORNAME(idamax)(&N,X,&incX);
#endif
}
extern "C" FINT FORNAME(izamax) (const FINT *N, const void *DX, const FINT *INCX);
CBLAS_INDEX cblas_izamax(const int N, const void *X, const int incX) {
#ifdef FORINT
const FINT ntmp=N;
const FINT incxtmp=incX;
return (CBLAS_INDEX)FORNAME(izamax)(&ntmp, X, &incxtmp);
#else
return (CBLAS_INDEX)FORNAME(izamax)(&N, X, &incX);
#endif
}
/*
extern "C" FINT FORNAME(idamin) (const FINT *N, const double *DX, const FINT *INCX);
CBLAS_INDEX cblas_idamin(const int N, const double *X, const int incX) {
#ifdef FORINT
const FINT ntmp=N;
const FINT incxtmp=incX;
return (CBLAS_INDEX)FORNAME(idamin)(&ntmp,X,&incxtmp);
#else
return (CBLAS_INDEX)FORNAME(idamin)(&N,X,&incX);
#endif
}
extern "C" FINT FORNAME(izamin) (const FINT *N, const void *DX, const FINT *INCX);
CBLAS_INDEX cblas_izamin(const int N, const void *X, const int incX) {
#ifdef FORINT
const FINT ntmp=N;
const FINT incxtmp=incX;
return (CBLAS_INDEX)FORNAME(izamin)(&ntmp, X, &incxtmp);
#else
return (CBLAS_INDEX)FORNAME(izamin)(&N, X, &incX);
#endif
}
*/
#endif
#ifdef NONCLAPACK
//clapack_dgesv
//allocate auxiliary storage and transpose input and output quantities to fortran/C order
extern "C" void FORNAME(dgesv) (const FINT *N, const FINT *NRHS, double *A, const FINT *LDA, FINT *IPIV, double *B, const FINT *LDB, FINT *INFO);
int clapack_dgesv(const CBLAS_ORDER Order, const int N, const int NRHS,
double *A, const int lda, int *ipiv,
double *B, const int ldb)
{
FINT INFO=0;
if(Order!=CblasRowMajor) laerror("CblasRowMajor order asserted");
//B should be in the same physical order, just transpose A in place and the LU result on output
for(int i=1; i<N; ++i) for(int j=0; j<i; ++j) {double t=A[j*lda+i]; A[j*lda+i]=A[i*lda+j]; A[i*lda+j]=t;}
#ifdef FORINT
const FINT ntmp=N;
const FINT nrhstmp=NRHS;
const FINT ldatmp=lda;
const FINT ldbtmp=ldb;
FINT ipivtmp=*ipiv;
FORNAME(dgesv) (&ntmp,&nrhstmp,A,&ldatmp,&ipivtmp,B,&ldbtmp,&INFO);
#else
FORNAME(dgesv) (&N,&NRHS,A,&lda,ipiv,B,&ldb,&INFO);
#endif
for(int i=1; i<N; ++i) for(int j=0; j<i; ++j) {double t=A[j*lda+i]; A[j*lda+i]=A[i*lda+j]; A[i*lda+j]=t;}
return (int)INFO;
}
#endif
#ifdef NONCBLAS
extern "C" void FORNAME(dswap)(const FINT *N, double *X, const FINT *incX, double *Y, const FINT *incY);
void cblas_dswap(const int N, double *X, const int incX, double *Y, const int incY){
#ifdef FORINT
const FINT N_tmp = N;
const FINT incX_tmp = incX;
const FINT incY_tmp = incY;
FORNAME(dswap)(&N_tmp, X, &incX_tmp, Y, &incY_tmp);
#else
FORNAME(dswap)(&N, X, &incX, Y, &incY);
#endif
}
extern "C" void FORNAME(zswap)(const FINT *N, void *X, const FINT *incX, void *Y, const FINT *incY);
void cblas_zswap(const int N, void *X, const int incX, void *Y, const int incY){
#ifdef FORINT
const FINT N_tmp = N;
const FINT incX_tmp = incX;
const FINT incY_tmp = incY;
FORNAME(zswap)(&N_tmp, X, &incX_tmp, Y, &incY_tmp);
#else
FORNAME(zswap)(&N, X, &incX, Y, &incY);
#endif
}
#endif
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