104 lines
4.3 KiB
C
104 lines
4.3 KiB
C
/*****************************************************************************
|
|
Copyright (c) 2011, Intel Corp.
|
|
All rights reserved.
|
|
|
|
Redistribution and use in source and binary forms, with or without
|
|
modification, are permitted provided that the following conditions are met:
|
|
|
|
* Redistributions of source code must retain the above copyright notice,
|
|
this list of conditions and the following disclaimer.
|
|
* Redistributions in binary form must reproduce the above copyright
|
|
notice, this list of conditions and the following disclaimer in the
|
|
documentation and/or other materials provided with the distribution.
|
|
* Neither the name of Intel Corporation nor the names of its contributors
|
|
may be used to endorse or promote products derived from this software
|
|
without specific prior written permission.
|
|
|
|
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
|
|
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
|
|
THE POSSIBILITY OF SUCH DAMAGE.
|
|
*****************************************************************************
|
|
* Contents: Native high-level C interface to LAPACK function dgesvx
|
|
* Author: Intel Corporation
|
|
* Generated November, 2011
|
|
*****************************************************************************/
|
|
|
|
#include "lapacke_utils.h"
|
|
|
|
lapack_int LAPACKE_dgesvx( int matrix_order, char fact, char trans,
|
|
lapack_int n, lapack_int nrhs, double* a,
|
|
lapack_int lda, double* af, lapack_int ldaf,
|
|
lapack_int* ipiv, char* equed, double* r, double* c,
|
|
double* b, lapack_int ldb, double* x, lapack_int ldx,
|
|
double* rcond, double* ferr, double* berr,
|
|
double* rpivot )
|
|
{
|
|
lapack_int info = 0;
|
|
lapack_int* iwork = NULL;
|
|
double* work = NULL;
|
|
if( matrix_order != LAPACK_COL_MAJOR && matrix_order != LAPACK_ROW_MAJOR ) {
|
|
LAPACKE_xerbla( "LAPACKE_dgesvx", -1 );
|
|
return -1;
|
|
}
|
|
#ifndef LAPACK_DISABLE_NAN_CHECK
|
|
/* Optionally check input matrices for NaNs */
|
|
if( LAPACKE_dge_nancheck( matrix_order, n, n, a, lda ) ) {
|
|
return -6;
|
|
}
|
|
if( LAPACKE_lsame( fact, 'f' ) ) {
|
|
if( LAPACKE_dge_nancheck( matrix_order, n, n, af, ldaf ) ) {
|
|
return -8;
|
|
}
|
|
}
|
|
if( LAPACKE_dge_nancheck( matrix_order, n, nrhs, b, ldb ) ) {
|
|
return -14;
|
|
}
|
|
if( LAPACKE_lsame( fact, 'f' ) && ( LAPACKE_lsame( *equed, 'b' ) ||
|
|
LAPACKE_lsame( *equed, 'c' ) ) ) {
|
|
if( LAPACKE_d_nancheck( n, c, 1 ) ) {
|
|
return -13;
|
|
}
|
|
}
|
|
if( LAPACKE_lsame( fact, 'f' ) && ( LAPACKE_lsame( *equed, 'b' ) ||
|
|
LAPACKE_lsame( *equed, 'r' ) ) ) {
|
|
if( LAPACKE_d_nancheck( n, r, 1 ) ) {
|
|
return -12;
|
|
}
|
|
}
|
|
#endif
|
|
/* Allocate memory for working array(s) */
|
|
iwork = (lapack_int*)LAPACKE_malloc( sizeof(lapack_int) * MAX(1,n) );
|
|
if( iwork == NULL ) {
|
|
info = LAPACK_WORK_MEMORY_ERROR;
|
|
goto exit_level_0;
|
|
}
|
|
work = (double*)LAPACKE_malloc( sizeof(double) * MAX(1,4*n) );
|
|
if( work == NULL ) {
|
|
info = LAPACK_WORK_MEMORY_ERROR;
|
|
goto exit_level_1;
|
|
}
|
|
/* Call middle-level interface */
|
|
info = LAPACKE_dgesvx_work( matrix_order, fact, trans, n, nrhs, a, lda, af,
|
|
ldaf, ipiv, equed, r, c, b, ldb, x, ldx, rcond,
|
|
ferr, berr, work, iwork );
|
|
/* Backup significant data from working array(s) */
|
|
*rpivot = work[0];
|
|
/* Release memory and exit */
|
|
LAPACKE_free( work );
|
|
exit_level_1:
|
|
LAPACKE_free( iwork );
|
|
exit_level_0:
|
|
if( info == LAPACK_WORK_MEMORY_ERROR ) {
|
|
LAPACKE_xerbla( "LAPACKE_dgesvx", info );
|
|
}
|
|
return info;
|
|
}
|