LAPACK  3.5.0
LAPACK: Linear Algebra PACKage
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lapacke_dposvxx_work.c File Reference
#include "lapacke_utils.h"
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Functions/Subroutines

lapack_int LAPACKE_dposvxx_work (int matrix_order, char fact, char uplo, lapack_int n, lapack_int nrhs, double *a, lapack_int lda, double *af, lapack_int ldaf, char *equed, double *s, double *b, lapack_int ldb, double *x, lapack_int ldx, double *rcond, double *rpvgrw, double *berr, lapack_int n_err_bnds, double *err_bnds_norm, double *err_bnds_comp, lapack_int nparams, double *params, double *work, lapack_int *iwork)

Function/Subroutine Documentation

lapack_int LAPACKE_dposvxx_work ( int  matrix_order,
char  fact,
char  uplo,
lapack_int  n,
lapack_int  nrhs,
double *  a,
lapack_int  lda,
double *  af,
lapack_int  ldaf,
char *  equed,
double *  s,
double *  b,
lapack_int  ldb,
double *  x,
lapack_int  ldx,
double *  rcond,
double *  rpvgrw,
double *  berr,
lapack_int  n_err_bnds,
double *  err_bnds_norm,
double *  err_bnds_comp,
lapack_int  nparams,
double *  params,
double *  work,
lapack_int iwork 
)

Definition at line 36 of file lapacke_dposvxx_work.c.

{
lapack_int info = 0;
if( matrix_order == LAPACK_COL_MAJOR ) {
/* Call LAPACK function and adjust info */
LAPACK_dposvxx( &fact, &uplo, &n, &nrhs, a, &lda, af, &ldaf, equed, s,
b, &ldb, x, &ldx, rcond, rpvgrw, berr, &n_err_bnds,
err_bnds_norm, err_bnds_comp, &nparams, params, work,
iwork, &info );
if( info < 0 ) {
info = info - 1;
}
} else if( matrix_order == LAPACK_ROW_MAJOR ) {
lapack_int lda_t = MAX(1,n);
lapack_int ldaf_t = MAX(1,n);
lapack_int ldb_t = MAX(1,n);
lapack_int ldx_t = MAX(1,n);
double* a_t = NULL;
double* af_t = NULL;
double* b_t = NULL;
double* x_t = NULL;
double* err_bnds_norm_t = NULL;
double* err_bnds_comp_t = NULL;
/* Check leading dimension(s) */
if( lda < n ) {
info = -7;
LAPACKE_xerbla( "LAPACKE_dposvxx_work", info );
return info;
}
if( ldaf < n ) {
info = -9;
LAPACKE_xerbla( "LAPACKE_dposvxx_work", info );
return info;
}
if( ldb < nrhs ) {
info = -13;
LAPACKE_xerbla( "LAPACKE_dposvxx_work", info );
return info;
}
if( ldx < nrhs ) {
info = -15;
LAPACKE_xerbla( "LAPACKE_dposvxx_work", info );
return info;
}
/* Allocate memory for temporary array(s) */
a_t = (double*)LAPACKE_malloc( sizeof(double) * lda_t * MAX(1,n) );
if( a_t == NULL ) {
goto exit_level_0;
}
af_t = (double*)LAPACKE_malloc( sizeof(double) * ldaf_t * MAX(1,n) );
if( af_t == NULL ) {
goto exit_level_1;
}
b_t = (double*)LAPACKE_malloc( sizeof(double) * ldb_t * MAX(1,nrhs) );
if( b_t == NULL ) {
goto exit_level_2;
}
x_t = (double*)LAPACKE_malloc( sizeof(double) * ldx_t * MAX(1,nrhs) );
if( x_t == NULL ) {
goto exit_level_3;
}
err_bnds_norm_t = (double*)
LAPACKE_malloc( sizeof(double) * nrhs * MAX(1,n_err_bnds) );
if( err_bnds_norm_t == NULL ) {
goto exit_level_4;
}
err_bnds_comp_t = (double*)
LAPACKE_malloc( sizeof(double) * nrhs * MAX(1,n_err_bnds) );
if( err_bnds_comp_t == NULL ) {
goto exit_level_5;
}
/* Transpose input matrices */
LAPACKE_dpo_trans( matrix_order, uplo, n, a, lda, a_t, lda_t );
if( LAPACKE_lsame( fact, 'f' ) ) {
LAPACKE_dpo_trans( matrix_order, uplo, n, af, ldaf, af_t, ldaf_t );
}
LAPACKE_dge_trans( matrix_order, n, nrhs, b, ldb, b_t, ldb_t );
/* Call LAPACK function and adjust info */
LAPACK_dposvxx( &fact, &uplo, &n, &nrhs, a_t, &lda_t, af_t, &ldaf_t,
equed, s, b_t, &ldb_t, x_t, &ldx_t, rcond, rpvgrw, berr,
&n_err_bnds, err_bnds_norm_t, err_bnds_comp_t, &nparams,
params, work, iwork, &info );
if( info < 0 ) {
info = info - 1;
}
/* Transpose output matrices */
if( LAPACKE_lsame( fact, 'e' ) && LAPACKE_lsame( *equed, 'y' ) ) {
LAPACKE_dpo_trans( LAPACK_COL_MAJOR, uplo, n, a_t, lda_t, a, lda );
}
if( LAPACKE_lsame( fact, 'e' ) || LAPACKE_lsame( fact, 'n' ) ) {
LAPACKE_dpo_trans( LAPACK_COL_MAJOR, uplo, n, af_t, ldaf_t, af,
ldaf );
}
LAPACKE_dge_trans( LAPACK_COL_MAJOR, n, nrhs, b_t, ldb_t, b, ldb );
LAPACKE_dge_trans( LAPACK_COL_MAJOR, n, nrhs, x_t, ldx_t, x, ldx );
LAPACKE_dge_trans( LAPACK_COL_MAJOR, nrhs, n_err_bnds, err_bnds_norm_t,
nrhs, err_bnds_norm, nrhs );
LAPACKE_dge_trans( LAPACK_COL_MAJOR, nrhs, n_err_bnds, err_bnds_comp_t,
nrhs, err_bnds_comp, nrhs );
/* Release memory and exit */
LAPACKE_free( err_bnds_comp_t );
exit_level_5:
LAPACKE_free( err_bnds_norm_t );
exit_level_4:
LAPACKE_free( x_t );
exit_level_3:
LAPACKE_free( b_t );
exit_level_2:
LAPACKE_free( af_t );
exit_level_1:
LAPACKE_free( a_t );
exit_level_0:
LAPACKE_xerbla( "LAPACKE_dposvxx_work", info );
}
} else {
info = -1;
LAPACKE_xerbla( "LAPACKE_dposvxx_work", info );
}
return info;
}

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