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

lapack_int LAPACKE_zgbsvxx_work (int matrix_order, char fact, char trans, lapack_int n, lapack_int kl, lapack_int ku, lapack_int nrhs, lapack_complex_double *ab, lapack_int ldab, lapack_complex_double *afb, lapack_int ldafb, lapack_int *ipiv, char *equed, double *r, double *c, lapack_complex_double *b, lapack_int ldb, lapack_complex_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, lapack_complex_double *work, double *rwork)

Function/Subroutine Documentation

lapack_int LAPACKE_zgbsvxx_work ( int  matrix_order,
char  fact,
char  trans,
lapack_int  n,
lapack_int  kl,
lapack_int  ku,
lapack_int  nrhs,
lapack_complex_double ab,
lapack_int  ldab,
lapack_complex_double afb,
lapack_int  ldafb,
lapack_int ipiv,
char *  equed,
double *  r,
double *  c,
lapack_complex_double b,
lapack_int  ldb,
lapack_complex_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,
lapack_complex_double work,
double *  rwork 
)

Definition at line 36 of file lapacke_zgbsvxx_work.c.

{
lapack_int info = 0;
if( matrix_order == LAPACK_COL_MAJOR ) {
/* Call LAPACK function and adjust info */
LAPACK_zgbsvxx( &fact, &trans, &n, &kl, &ku, &nrhs, ab, &ldab, afb,
&ldafb, ipiv, equed, r, c, b, &ldb, x, &ldx, rcond,
rpvgrw, berr, &n_err_bnds, err_bnds_norm, err_bnds_comp,
&nparams, params, work, rwork, &info );
if( info < 0 ) {
info = info - 1;
}
} else if( matrix_order == LAPACK_ROW_MAJOR ) {
lapack_int ldab_t = MAX(1,kl+ku+1);
lapack_int ldafb_t = MAX(1,2*kl+ku+1);
lapack_int ldb_t = MAX(1,n);
lapack_int ldx_t = MAX(1,n);
lapack_complex_double* ab_t = NULL;
lapack_complex_double* afb_t = NULL;
lapack_complex_double* b_t = NULL;
lapack_complex_double* x_t = NULL;
double* err_bnds_norm_t = NULL;
double* err_bnds_comp_t = NULL;
/* Check leading dimension(s) */
if( ldab < n ) {
info = -9;
LAPACKE_xerbla( "LAPACKE_zgbsvxx_work", info );
return info;
}
if( ldafb < n ) {
info = -11;
LAPACKE_xerbla( "LAPACKE_zgbsvxx_work", info );
return info;
}
if( ldb < nrhs ) {
info = -17;
LAPACKE_xerbla( "LAPACKE_zgbsvxx_work", info );
return info;
}
if( ldx < nrhs ) {
info = -19;
LAPACKE_xerbla( "LAPACKE_zgbsvxx_work", info );
return info;
}
/* Allocate memory for temporary array(s) */
LAPACKE_malloc( sizeof(lapack_complex_double) * ldab_t * MAX(1,n) );
if( ab_t == NULL ) {
goto exit_level_0;
}
ldafb_t * MAX(1,n) );
if( afb_t == NULL ) {
goto exit_level_1;
}
ldb_t * MAX(1,nrhs) );
if( b_t == NULL ) {
goto exit_level_2;
}
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_zgb_trans( matrix_order, n, n, kl, ku, ab, ldab, ab_t, ldab_t );
if( LAPACKE_lsame( fact, 'f' ) ) {
LAPACKE_zgb_trans( matrix_order, n, n, kl, kl+ku, afb, ldafb, afb_t,
ldafb_t );
}
LAPACKE_zge_trans( matrix_order, n, nrhs, b, ldb, b_t, ldb_t );
/* Call LAPACK function and adjust info */
LAPACK_zgbsvxx( &fact, &trans, &n, &kl, &ku, &nrhs, ab_t, &ldab_t,
afb_t, &ldafb_t, ipiv, equed, r, c, 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, rwork, &info );
if( info < 0 ) {
info = info - 1;
}
/* Transpose output matrices */
if( LAPACKE_lsame( fact, 'e' ) && ( LAPACKE_lsame( *equed, 'b' ) ||
LAPACKE_lsame( *equed, 'c' ) || LAPACKE_lsame( *equed, 'r' ) ) ) {
LAPACKE_zgb_trans( LAPACK_COL_MAJOR, n, n, kl, ku, ab_t, ldab_t, ab,
ldab );
}
if( LAPACKE_lsame( fact, 'e' ) || LAPACKE_lsame( fact, 'n' ) ) {
LAPACKE_zgb_trans( LAPACK_COL_MAJOR, n, n, kl, kl+ku, afb_t,
ldafb_t, afb, ldafb );
}
if( LAPACKE_lsame( fact, 'f' ) && ( LAPACKE_lsame( *equed, 'b' ) ||
LAPACKE_lsame( *equed, 'c' ) || LAPACKE_lsame( *equed, 'r' ) ) ) {
LAPACKE_zge_trans( LAPACK_COL_MAJOR, n, nrhs, b_t, ldb_t, b, ldb );
}
LAPACKE_zge_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( afb_t );
exit_level_1:
LAPACKE_free( ab_t );
exit_level_0:
LAPACKE_xerbla( "LAPACKE_zgbsvxx_work", info );
}
} else {
info = -1;
LAPACKE_xerbla( "LAPACKE_zgbsvxx_work", info );
}
return info;
}

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