LAPACK  3.5.0
LAPACK: Linear Algebra PACKage
 All Classes Files Functions Variables Typedefs Macros
lapacke_dpbrfs_work.c File Reference
#include "lapacke_utils.h"
Include dependency graph for lapacke_dpbrfs_work.c:

Go to the source code of this file.

Functions/Subroutines

lapack_int LAPACKE_dpbrfs_work (int matrix_order, char uplo, lapack_int n, lapack_int kd, lapack_int nrhs, const double *ab, lapack_int ldab, const double *afb, lapack_int ldafb, const double *b, lapack_int ldb, double *x, lapack_int ldx, double *ferr, double *berr, double *work, lapack_int *iwork)

Function/Subroutine Documentation

lapack_int LAPACKE_dpbrfs_work ( int  matrix_order,
char  uplo,
lapack_int  n,
lapack_int  kd,
lapack_int  nrhs,
const double *  ab,
lapack_int  ldab,
const double *  afb,
lapack_int  ldafb,
const double *  b,
lapack_int  ldb,
double *  x,
lapack_int  ldx,
double *  ferr,
double *  berr,
double *  work,
lapack_int iwork 
)

Definition at line 36 of file lapacke_dpbrfs_work.c.

{
lapack_int info = 0;
if( matrix_order == LAPACK_COL_MAJOR ) {
/* Call LAPACK function and adjust info */
LAPACK_dpbrfs( &uplo, &n, &kd, &nrhs, ab, &ldab, afb, &ldafb, b, &ldb,
x, &ldx, ferr, berr, work, iwork, &info );
if( info < 0 ) {
info = info - 1;
}
} else if( matrix_order == LAPACK_ROW_MAJOR ) {
lapack_int ldab_t = MAX(1,kd+1);
lapack_int ldafb_t = MAX(1,kd+1);
lapack_int ldb_t = MAX(1,n);
lapack_int ldx_t = MAX(1,n);
double* ab_t = NULL;
double* afb_t = NULL;
double* b_t = NULL;
double* x_t = NULL;
/* Check leading dimension(s) */
if( ldab < n ) {
info = -7;
LAPACKE_xerbla( "LAPACKE_dpbrfs_work", info );
return info;
}
if( ldafb < n ) {
info = -9;
LAPACKE_xerbla( "LAPACKE_dpbrfs_work", info );
return info;
}
if( ldb < nrhs ) {
info = -11;
LAPACKE_xerbla( "LAPACKE_dpbrfs_work", info );
return info;
}
if( ldx < nrhs ) {
info = -13;
LAPACKE_xerbla( "LAPACKE_dpbrfs_work", info );
return info;
}
/* Allocate memory for temporary array(s) */
ab_t = (double*)LAPACKE_malloc( sizeof(double) * ldab_t * MAX(1,n) );
if( ab_t == NULL ) {
goto exit_level_0;
}
afb_t = (double*)LAPACKE_malloc( sizeof(double) * ldafb_t * MAX(1,n) );
if( afb_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;
}
/* Transpose input matrices */
LAPACKE_dpb_trans( matrix_order, uplo, n, kd, ab, ldab, ab_t, ldab_t );
LAPACKE_dpb_trans( matrix_order, uplo, n, kd, afb, ldafb, afb_t,
ldafb_t );
LAPACKE_dge_trans( matrix_order, n, nrhs, b, ldb, b_t, ldb_t );
LAPACKE_dge_trans( matrix_order, n, nrhs, x, ldx, x_t, ldx_t );
/* Call LAPACK function and adjust info */
LAPACK_dpbrfs( &uplo, &n, &kd, &nrhs, ab_t, &ldab_t, afb_t, &ldafb_t,
b_t, &ldb_t, x_t, &ldx_t, ferr, berr, work, iwork,
&info );
if( info < 0 ) {
info = info - 1;
}
/* Transpose output matrices */
LAPACKE_dge_trans( LAPACK_COL_MAJOR, n, nrhs, x_t, ldx_t, x, ldx );
/* Release memory and exit */
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_dpbrfs_work", info );
}
} else {
info = -1;
LAPACKE_xerbla( "LAPACKE_dpbrfs_work", info );
}
return info;
}

Here is the call graph for this function:

Here is the caller graph for this function: