161 lines
6.9 KiB
C
161 lines
6.9 KiB
C
/*****************************************************************************
|
|
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 sggevx
|
|
* Author: Intel Corporation
|
|
*****************************************************************************/
|
|
|
|
#include "lapacke_utils.h"
|
|
|
|
lapack_int LAPACKE_sggevx_work( int matrix_layout, char balanc, char jobvl,
|
|
char jobvr, char sense, lapack_int n, float* a,
|
|
lapack_int lda, float* b, lapack_int ldb,
|
|
float* alphar, float* alphai, float* beta,
|
|
float* vl, lapack_int ldvl, float* vr,
|
|
lapack_int ldvr, lapack_int* ilo,
|
|
lapack_int* ihi, float* lscale, float* rscale,
|
|
float* abnrm, float* bbnrm, float* rconde,
|
|
float* rcondv, float* 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_sggevx( &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);
|
|
float* a_t = NULL;
|
|
float* b_t = NULL;
|
|
float* vl_t = NULL;
|
|
float* vr_t = NULL;
|
|
/* Check leading dimension(s) */
|
|
if( lda < n ) {
|
|
info = -8;
|
|
LAPACKE_xerbla( "LAPACKE_sggevx_work", info );
|
|
return info;
|
|
}
|
|
if( ldb < n ) {
|
|
info = -10;
|
|
LAPACKE_xerbla( "LAPACKE_sggevx_work", info );
|
|
return info;
|
|
}
|
|
if( ldvl < n ) {
|
|
info = -15;
|
|
LAPACKE_xerbla( "LAPACKE_sggevx_work", info );
|
|
return info;
|
|
}
|
|
if( ldvr < n ) {
|
|
info = -17;
|
|
LAPACKE_xerbla( "LAPACKE_sggevx_work", info );
|
|
return info;
|
|
}
|
|
/* Query optimal working array(s) size if requested */
|
|
if( lwork == -1 ) {
|
|
LAPACK_sggevx( &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 = (float*)LAPACKE_malloc( sizeof(float) * lda_t * MAX(1,n) );
|
|
if( a_t == NULL ) {
|
|
info = LAPACK_TRANSPOSE_MEMORY_ERROR;
|
|
goto exit_level_0;
|
|
}
|
|
b_t = (float*)LAPACKE_malloc( sizeof(float) * 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 = (float*)LAPACKE_malloc( sizeof(float) * 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 = (float*)LAPACKE_malloc( sizeof(float) * ldvr_t * MAX(1,n) );
|
|
if( vr_t == NULL ) {
|
|
info = LAPACK_TRANSPOSE_MEMORY_ERROR;
|
|
goto exit_level_3;
|
|
}
|
|
}
|
|
/* Transpose input matrices */
|
|
LAPACKE_sge_trans( matrix_layout, n, n, a, lda, a_t, lda_t );
|
|
LAPACKE_sge_trans( matrix_layout, n, n, b, ldb, b_t, ldb_t );
|
|
/* Call LAPACK function and adjust info */
|
|
LAPACK_sggevx( &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_sge_trans( LAPACK_COL_MAJOR, n, n, a_t, lda_t, a, lda );
|
|
LAPACKE_sge_trans( LAPACK_COL_MAJOR, n, n, b_t, ldb_t, b, ldb );
|
|
if( LAPACKE_lsame( jobvl, 'v' ) ) {
|
|
LAPACKE_sge_trans( LAPACK_COL_MAJOR, n, n, vl_t, ldvl_t, vl, ldvl );
|
|
}
|
|
if( LAPACKE_lsame( jobvr, 'v' ) ) {
|
|
LAPACKE_sge_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_sggevx_work", info );
|
|
}
|
|
} else {
|
|
info = -1;
|
|
LAPACKE_xerbla( "LAPACKE_sggevx_work", info );
|
|
}
|
|
return info;
|
|
}
|