/lapacke/src/lapacke_dggevx_work.c
C | 162 lines | 121 code | 2 blank | 39 comment | 30 complexity | 16829cde4bd7113a8a00c17f2c1ca533 MD5 | raw file
Possible License(s): BSD-3-Clause
- /*****************************************************************************
- Copyright (c) 2014, 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 middle-level C interface to LAPACK function dggevx
- * Author: Intel Corporation
- *****************************************************************************/
- #include "lapacke_utils.h"
- lapack_int LAPACKE_dggevx_work( int matrix_layout, char balanc, char jobvl,
- char jobvr, char sense, lapack_int n, double* a,
- lapack_int lda, double* b, lapack_int ldb,
- double* alphar, double* alphai, double* beta,
- double* vl, lapack_int ldvl, double* vr,
- lapack_int ldvr, lapack_int* ilo,
- lapack_int* ihi, double* lscale, double* rscale,
- double* abnrm, double* bbnrm, double* rconde,
- double* rcondv, double* work, lapack_int lwork,
- lapack_int* iwork, lapack_logical* bwork )
- {
- lapack_int info = 0;
- if( matrix_layout == LAPACK_COL_MAJOR ) {
- /* Call LAPACK function and adjust info */
- LAPACK_dggevx( &balanc, &jobvl, &jobvr, &sense, &n, a, &lda, b, &ldb,
- alphar, alphai, beta, vl, &ldvl, vr, &ldvr, ilo, ihi,
- lscale, rscale, abnrm, bbnrm, rconde, rcondv, work,
- &lwork, iwork, bwork, &info );
- if( info < 0 ) {
- info = info - 1;
- }
- } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
- lapack_int lda_t = MAX(1,n);
- lapack_int ldb_t = MAX(1,n);
- lapack_int ldvl_t = MAX(1,n);
- lapack_int ldvr_t = MAX(1,n);
- double* a_t = NULL;
- double* b_t = NULL;
- double* vl_t = NULL;
- double* vr_t = NULL;
- /* Check leading dimension(s) */
- if( lda < n ) {
- info = -8;
- LAPACKE_xerbla( "LAPACKE_dggevx_work", info );
- return info;
- }
- if( ldb < n ) {
- info = -10;
- LAPACKE_xerbla( "LAPACKE_dggevx_work", info );
- return info;
- }
- if( ldvl < n ) {
- info = -15;
- LAPACKE_xerbla( "LAPACKE_dggevx_work", info );
- return info;
- }
- if( ldvr < n ) {
- info = -17;
- LAPACKE_xerbla( "LAPACKE_dggevx_work", info );
- return info;
- }
- /* Query optimal working array(s) size if requested */
- if( lwork == -1 ) {
- LAPACK_dggevx( &balanc, &jobvl, &jobvr, &sense, &n, a, &lda_t, b,
- &ldb_t, alphar, alphai, beta, vl, &ldvl_t, vr,
- &ldvr_t, ilo, ihi, lscale, rscale, abnrm, bbnrm,
- rconde, rcondv, work, &lwork, iwork, bwork, &info );
- return (info < 0) ? (info - 1) : info;
- }
- /* Allocate memory for temporary array(s) */
- a_t = (double*)LAPACKE_malloc( sizeof(double) * lda_t * MAX(1,n) );
- if( a_t == NULL ) {
- info = LAPACK_TRANSPOSE_MEMORY_ERROR;
- goto exit_level_0;
- }
- b_t = (double*)LAPACKE_malloc( sizeof(double) * ldb_t * MAX(1,n) );
- if( b_t == NULL ) {
- info = LAPACK_TRANSPOSE_MEMORY_ERROR;
- goto exit_level_1;
- }
- if( LAPACKE_lsame( jobvl, 'v' ) ) {
- vl_t = (double*)
- LAPACKE_malloc( sizeof(double) * ldvl_t * MAX(1,n) );
- if( vl_t == NULL ) {
- info = LAPACK_TRANSPOSE_MEMORY_ERROR;
- goto exit_level_2;
- }
- }
- if( LAPACKE_lsame( jobvr, 'v' ) ) {
- vr_t = (double*)
- LAPACKE_malloc( sizeof(double) * ldvr_t * MAX(1,n) );
- if( vr_t == NULL ) {
- info = LAPACK_TRANSPOSE_MEMORY_ERROR;
- goto exit_level_3;
- }
- }
- /* Transpose input matrices */
- LAPACKE_dge_trans( matrix_layout, n, n, a, lda, a_t, lda_t );
- LAPACKE_dge_trans( matrix_layout, n, n, b, ldb, b_t, ldb_t );
- /* Call LAPACK function and adjust info */
- LAPACK_dggevx( &balanc, &jobvl, &jobvr, &sense, &n, a_t, &lda_t, b_t,
- &ldb_t, alphar, alphai, beta, vl_t, &ldvl_t, vr_t,
- &ldvr_t, ilo, ihi, lscale, rscale, abnrm, bbnrm, rconde,
- rcondv, work, &lwork, iwork, bwork, &info );
- if( info < 0 ) {
- info = info - 1;
- }
- /* Transpose output matrices */
- LAPACKE_dge_trans( LAPACK_COL_MAJOR, n, n, a_t, lda_t, a, lda );
- LAPACKE_dge_trans( LAPACK_COL_MAJOR, n, n, b_t, ldb_t, b, ldb );
- if( LAPACKE_lsame( jobvl, 'v' ) ) {
- LAPACKE_dge_trans( LAPACK_COL_MAJOR, n, n, vl_t, ldvl_t, vl, ldvl );
- }
- if( LAPACKE_lsame( jobvr, 'v' ) ) {
- LAPACKE_dge_trans( LAPACK_COL_MAJOR, n, n, vr_t, ldvr_t, vr, ldvr );
- }
- /* Release memory and exit */
- if( LAPACKE_lsame( jobvr, 'v' ) ) {
- LAPACKE_free( vr_t );
- }
- exit_level_3:
- if( LAPACKE_lsame( jobvl, 'v' ) ) {
- LAPACKE_free( vl_t );
- }
- exit_level_2:
- LAPACKE_free( b_t );
- exit_level_1:
- LAPACKE_free( a_t );
- exit_level_0:
- if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
- LAPACKE_xerbla( "LAPACKE_dggevx_work", info );
- }
- } else {
- info = -1;
- LAPACKE_xerbla( "LAPACKE_dggevx_work", info );
- }
- return info;
- }