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

Go to the source code of this file.

Functions/Subroutines

lapack_int LAPACKE_spbsv_work (int matrix_order, char uplo, lapack_int n, lapack_int kd, lapack_int nrhs, float *ab, lapack_int ldab, float *b, lapack_int ldb)

Function/Subroutine Documentation

lapack_int LAPACKE_spbsv_work ( int  matrix_order,
char  uplo,
lapack_int  n,
lapack_int  kd,
lapack_int  nrhs,
float *  ab,
lapack_int  ldab,
float *  b,
lapack_int  ldb 
)

Definition at line 36 of file lapacke_spbsv_work.c.

{
lapack_int info = 0;
if( matrix_order == LAPACK_COL_MAJOR ) {
/* Call LAPACK function and adjust info */
LAPACK_spbsv( &uplo, &n, &kd, &nrhs, ab, &ldab, b, &ldb, &info );
if( info < 0 ) {
info = info - 1;
}
} else if( matrix_order == LAPACK_ROW_MAJOR ) {
lapack_int ldab_t = MAX(1,kd+1);
lapack_int ldb_t = MAX(1,n);
float* ab_t = NULL;
float* b_t = NULL;
/* Check leading dimension(s) */
if( ldab < n ) {
info = -7;
LAPACKE_xerbla( "LAPACKE_spbsv_work", info );
return info;
}
if( ldb < nrhs ) {
info = -9;
LAPACKE_xerbla( "LAPACKE_spbsv_work", info );
return info;
}
/* Allocate memory for temporary array(s) */
ab_t = (float*)LAPACKE_malloc( sizeof(float) * ldab_t * MAX(1,n) );
if( ab_t == NULL ) {
goto exit_level_0;
}
b_t = (float*)LAPACKE_malloc( sizeof(float) * ldb_t * MAX(1,nrhs) );
if( b_t == NULL ) {
goto exit_level_1;
}
/* Transpose input matrices */
LAPACKE_spb_trans( matrix_order, uplo, n, kd, ab, ldab, ab_t, ldab_t );
LAPACKE_sge_trans( matrix_order, n, nrhs, b, ldb, b_t, ldb_t );
/* Call LAPACK function and adjust info */
LAPACK_spbsv( &uplo, &n, &kd, &nrhs, ab_t, &ldab_t, b_t, &ldb_t,
&info );
if( info < 0 ) {
info = info - 1;
}
/* Transpose output matrices */
LAPACKE_spb_trans( LAPACK_COL_MAJOR, uplo, n, kd, ab_t, ldab_t, ab,
ldab );
LAPACKE_sge_trans( LAPACK_COL_MAJOR, n, nrhs, b_t, ldb_t, b, ldb );
/* Release memory and exit */
LAPACKE_free( b_t );
exit_level_1:
LAPACKE_free( ab_t );
exit_level_0:
LAPACKE_xerbla( "LAPACKE_spbsv_work", info );
}
} else {
info = -1;
LAPACKE_xerbla( "LAPACKE_spbsv_work", info );
}
return info;
}

Here is the call graph for this function:

Here is the caller graph for this function: