LAPACK  3.5.0
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lapacke_sggesx_work.c File Reference
#include "lapacke_utils.h"
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Functions/Subroutines

lapack_int LAPACKE_sggesx_work (int matrix_order, char jobvsl, char jobvsr, char sort, LAPACK_S_SELECT3 selctg, char sense, lapack_int n, float *a, lapack_int lda, float *b, lapack_int ldb, lapack_int *sdim, float *alphar, float *alphai, float *beta, float *vsl, lapack_int ldvsl, float *vsr, lapack_int ldvsr, float *rconde, float *rcondv, float *work, lapack_int lwork, lapack_int *iwork, lapack_int liwork, lapack_logical *bwork)

Function/Subroutine Documentation

lapack_int LAPACKE_sggesx_work ( int  matrix_order,
char  jobvsl,
char  jobvsr,
char  sort,
LAPACK_S_SELECT3  selctg,
char  sense,
lapack_int  n,
float *  a,
lapack_int  lda,
float *  b,
lapack_int  ldb,
lapack_int sdim,
float *  alphar,
float *  alphai,
float *  beta,
float *  vsl,
lapack_int  ldvsl,
float *  vsr,
lapack_int  ldvsr,
float *  rconde,
float *  rcondv,
float *  work,
lapack_int  lwork,
lapack_int iwork,
lapack_int  liwork,
lapack_logical bwork 
)

Definition at line 36 of file lapacke_sggesx_work.c.

{
lapack_int info = 0;
if( matrix_order == LAPACK_COL_MAJOR ) {
/* Call LAPACK function and adjust info */
LAPACK_sggesx( &jobvsl, &jobvsr, &sort, selctg, &sense, &n, a, &lda, b,
&ldb, sdim, alphar, alphai, beta, vsl, &ldvsl, vsr,
&ldvsr, rconde, rcondv, work, &lwork, iwork, &liwork,
bwork, &info );
if( info < 0 ) {
info = info - 1;
}
} else if( matrix_order == LAPACK_ROW_MAJOR ) {
lapack_int lda_t = MAX(1,n);
lapack_int ldb_t = MAX(1,n);
lapack_int ldvsl_t = MAX(1,n);
lapack_int ldvsr_t = MAX(1,n);
float* a_t = NULL;
float* b_t = NULL;
float* vsl_t = NULL;
float* vsr_t = NULL;
/* Check leading dimension(s) */
if( lda < n ) {
info = -9;
LAPACKE_xerbla( "LAPACKE_sggesx_work", info );
return info;
}
if( ldb < n ) {
info = -11;
LAPACKE_xerbla( "LAPACKE_sggesx_work", info );
return info;
}
if( ldvsl < n ) {
info = -17;
LAPACKE_xerbla( "LAPACKE_sggesx_work", info );
return info;
}
if( ldvsr < n ) {
info = -19;
LAPACKE_xerbla( "LAPACKE_sggesx_work", info );
return info;
}
/* Query optimal working array(s) size if requested */
if( liwork == -1 || lwork == -1 ) {
LAPACK_sggesx( &jobvsl, &jobvsr, &sort, selctg, &sense, &n, a,
&lda_t, b, &ldb_t, sdim, alphar, alphai, beta, vsl,
&ldvsl_t, vsr, &ldvsr_t, rconde, rcondv, work,
&lwork, iwork, &liwork, 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 ) {
goto exit_level_0;
}
b_t = (float*)LAPACKE_malloc( sizeof(float) * ldb_t * MAX(1,n) );
if( b_t == NULL ) {
goto exit_level_1;
}
if( LAPACKE_lsame( jobvsl, 'v' ) ) {
vsl_t = (float*)
LAPACKE_malloc( sizeof(float) * ldvsl_t * MAX(1,n) );
if( vsl_t == NULL ) {
goto exit_level_2;
}
}
if( LAPACKE_lsame( jobvsr, 'v' ) ) {
vsr_t = (float*)
LAPACKE_malloc( sizeof(float) * ldvsr_t * MAX(1,n) );
if( vsr_t == NULL ) {
goto exit_level_3;
}
}
/* Transpose input matrices */
LAPACKE_sge_trans( matrix_order, n, n, a, lda, a_t, lda_t );
LAPACKE_sge_trans( matrix_order, n, n, b, ldb, b_t, ldb_t );
/* Call LAPACK function and adjust info */
LAPACK_sggesx( &jobvsl, &jobvsr, &sort, selctg, &sense, &n, a_t, &lda_t,
b_t, &ldb_t, sdim, alphar, alphai, beta, vsl_t, &ldvsl_t,
vsr_t, &ldvsr_t, rconde, rcondv, work, &lwork, iwork,
&liwork, 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( jobvsl, 'v' ) ) {
LAPACKE_sge_trans( LAPACK_COL_MAJOR, n, n, vsl_t, ldvsl_t, vsl,
ldvsl );
}
if( LAPACKE_lsame( jobvsr, 'v' ) ) {
LAPACKE_sge_trans( LAPACK_COL_MAJOR, n, n, vsr_t, ldvsr_t, vsr,
ldvsr );
}
/* Release memory and exit */
if( LAPACKE_lsame( jobvsr, 'v' ) ) {
LAPACKE_free( vsr_t );
}
exit_level_3:
if( LAPACKE_lsame( jobvsl, 'v' ) ) {
LAPACKE_free( vsl_t );
}
exit_level_2:
LAPACKE_free( b_t );
exit_level_1:
LAPACKE_free( a_t );
exit_level_0:
LAPACKE_xerbla( "LAPACKE_sggesx_work", info );
}
} else {
info = -1;
LAPACKE_xerbla( "LAPACKE_sggesx_work", info );
}
return info;
}

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