lapack_int LAPACKE_dtprfs( int matrix_order, char uplo, char trans, char diag,
lapack_int n, lapack_int nrhs, const double* ap,
const double* b, lapack_int ldb, const double* x,
lapack_int ldx, double* ferr, double* berr )
{
lapack_int info = 0;
lapack_int* iwork = NULL;
double* work = NULL;
if( matrix_order != LAPACK_COL_MAJOR && matrix_order != LAPACK_ROW_MAJOR ) {
LAPACKE_xerbla( "LAPACKE_dtprfs", -1 );
return -1;
}
#ifndef LAPACK_DISABLE_NAN_CHECK
/* Optionally check input matrices for NaNs */
if( LAPACKE_dtp_nancheck( matrix_order, uplo, diag, n, ap ) ) {
return -7;
}
if( LAPACKE_dge_nancheck( matrix_order, n, nrhs, b, ldb ) ) {
return -8;
}
if( LAPACKE_dge_nancheck( matrix_order, n, nrhs, x, ldx ) ) {
return -10;
}
#endif
/* Allocate memory for working array(s) */
iwork = (lapack_int*)LAPACKE_malloc( sizeof(lapack_int) * MAX(1,n) );
if( iwork == NULL ) {
info = LAPACK_WORK_MEMORY_ERROR;
goto exit_level_0;
}
work = (double*)LAPACKE_malloc( sizeof(double) * MAX(1,3*n) );
if( work == NULL ) {
info = LAPACK_WORK_MEMORY_ERROR;
goto exit_level_1;
}
/* Call middle-level interface */
info = LAPACKE_dtprfs_work( matrix_order, uplo, trans, diag, n, nrhs, ap, b,
ldb, x, ldx, ferr, berr, work, iwork );
/* Release memory and exit */
LAPACKE_free( work );
exit_level_1:
LAPACKE_free( iwork );
exit_level_0:
if( info == LAPACK_WORK_MEMORY_ERROR ) {
LAPACKE_xerbla( "LAPACKE_dtprfs", info );
}
return info;
}
int main(void)
{
/* Local scalars */
char uplo, uplo_i;
char trans, trans_i;
char diag, diag_i;
lapack_int n, n_i;
lapack_int nrhs, nrhs_i;
lapack_int ldb, ldb_i;
lapack_int ldb_r;
lapack_int ldx, ldx_i;
lapack_int ldx_r;
lapack_int info, info_i;
lapack_int i;
int failed;
/* Local arrays */
double *ap = NULL, *ap_i = NULL;
double *b = NULL, *b_i = NULL;
double *x = NULL, *x_i = NULL;
double *ferr = NULL, *ferr_i = NULL;
double *berr = NULL, *berr_i = NULL;
double *work = NULL, *work_i = NULL;
lapack_int *iwork = NULL, *iwork_i = NULL;
double *ferr_save = NULL;
double *berr_save = NULL;
double *ap_r = NULL;
double *b_r = NULL;
double *x_r = NULL;
/* Iniitialize the scalar parameters */
init_scalars_dtprfs( &uplo, &trans, &diag, &n, &nrhs, &ldb, &ldx );
ldb_r = nrhs+2;
ldx_r = nrhs+2;
uplo_i = uplo;
trans_i = trans;
diag_i = diag;
n_i = n;
nrhs_i = nrhs;
ldb_i = ldb;
ldx_i = ldx;
/* Allocate memory for the LAPACK routine arrays */
ap = (double *)LAPACKE_malloc( ((n*(n+1)/2)) * sizeof(double) );
b = (double *)LAPACKE_malloc( ldb*nrhs * sizeof(double) );
x = (double *)LAPACKE_malloc( ldx*nrhs * sizeof(double) );
ferr = (double *)LAPACKE_malloc( nrhs * sizeof(double) );
berr = (double *)LAPACKE_malloc( nrhs * sizeof(double) );
work = (double *)LAPACKE_malloc( 3*n * sizeof(double) );
iwork = (lapack_int *)LAPACKE_malloc( n * sizeof(lapack_int) );
/* Allocate memory for the C interface function arrays */
ap_i = (double *)LAPACKE_malloc( ((n*(n+1)/2)) * sizeof(double) );
b_i = (double *)LAPACKE_malloc( ldb*nrhs * sizeof(double) );
x_i = (double *)LAPACKE_malloc( ldx*nrhs * sizeof(double) );
ferr_i = (double *)LAPACKE_malloc( nrhs * sizeof(double) );
berr_i = (double *)LAPACKE_malloc( nrhs * sizeof(double) );
work_i = (double *)LAPACKE_malloc( 3*n * sizeof(double) );
iwork_i = (lapack_int *)LAPACKE_malloc( n * sizeof(lapack_int) );
/* Allocate memory for the backup arrays */
ferr_save = (double *)LAPACKE_malloc( nrhs * sizeof(double) );
berr_save = (double *)LAPACKE_malloc( nrhs * sizeof(double) );
/* Allocate memory for the row-major arrays */
ap_r = (double *)LAPACKE_malloc( n*(n+1)/2 * sizeof(double) );
b_r = (double *)LAPACKE_malloc( n*(nrhs+2) * sizeof(double) );
x_r = (double *)LAPACKE_malloc( n*(nrhs+2) * sizeof(double) );
/* Initialize input arrays */
init_ap( (n*(n+1)/2), ap );
init_b( ldb*nrhs, b );
init_x( ldx*nrhs, x );
init_ferr( nrhs, ferr );
init_berr( nrhs, berr );
init_work( 3*n, work );
init_iwork( n, iwork );
/* Backup the ouptut arrays */
for( i = 0; i < nrhs; i++ ) {
ferr_save[i] = ferr[i];
}
for( i = 0; i < nrhs; i++ ) {
berr_save[i] = berr[i];
}
/* Call the LAPACK routine */
dtprfs_( &uplo, &trans, &diag, &n, &nrhs, ap, b, &ldb, x, &ldx, ferr, berr,
work, iwork, &info );
/* Initialize input data, call the column-major middle-level
* interface to LAPACK routine and check the results */
for( i = 0; i < (n*(n+1)/2); i++ ) {
ap_i[i] = ap[i];
}
for( i = 0; i < ldb*nrhs; i++ ) {
b_i[i] = b[i];
}
for( i = 0; i < ldx*nrhs; i++ ) {
x_i[i] = x[i];
}
for( i = 0; i < nrhs; i++ ) {
ferr_i[i] = ferr_save[i];
}
for( i = 0; i < nrhs; i++ ) {
berr_i[i] = berr_save[i];
}
for( i = 0; i < 3*n; i++ ) {
work_i[i] = work[i];
}
for( i = 0; i < n; i++ ) {
iwork_i[i] = iwork[i];
}
info_i = LAPACKE_dtprfs_work( LAPACK_COL_MAJOR, uplo_i, trans_i, diag_i,
n_i, nrhs_i, ap_i, b_i, ldb_i, x_i, ldx_i,
ferr_i, berr_i, work_i, iwork_i );
failed = compare_dtprfs( ferr, ferr_i, berr, berr_i, info, info_i, nrhs );
if( failed == 0 ) {
printf( "PASSED: column-major middle-level interface to dtprfs\n" );
} else {
printf( "FAILED: column-major middle-level interface to dtprfs\n" );
}
/* Initialize input data, call the column-major high-level
* interface to LAPACK routine and check the results */
for( i = 0; i < (n*(n+1)/2); i++ ) {
ap_i[i] = ap[i];
}
for( i = 0; i < ldb*nrhs; i++ ) {
b_i[i] = b[i];
}
for( i = 0; i < ldx*nrhs; i++ ) {
x_i[i] = x[i];
}
for( i = 0; i < nrhs; i++ ) {
ferr_i[i] = ferr_save[i];
}
for( i = 0; i < nrhs; i++ ) {
berr_i[i] = berr_save[i];
}
for( i = 0; i < 3*n; i++ ) {
work_i[i] = work[i];
}
for( i = 0; i < n; i++ ) {
iwork_i[i] = iwork[i];
}
info_i = LAPACKE_dtprfs( LAPACK_COL_MAJOR, uplo_i, trans_i, diag_i, n_i,
nrhs_i, ap_i, b_i, ldb_i, x_i, ldx_i, ferr_i,
berr_i );
failed = compare_dtprfs( ferr, ferr_i, berr, berr_i, info, info_i, nrhs );
if( failed == 0 ) {
printf( "PASSED: column-major high-level interface to dtprfs\n" );
} else {
printf( "FAILED: column-major high-level interface to dtprfs\n" );
}
/* Initialize input data, call the row-major middle-level
* interface to LAPACK routine and check the results */
for( i = 0; i < (n*(n+1)/2); i++ ) {
ap_i[i] = ap[i];
}
for( i = 0; i < ldb*nrhs; i++ ) {
b_i[i] = b[i];
}
for( i = 0; i < ldx*nrhs; i++ ) {
x_i[i] = x[i];
}
for( i = 0; i < nrhs; i++ ) {
ferr_i[i] = ferr_save[i];
}
for( i = 0; i < nrhs; i++ ) {
berr_i[i] = berr_save[i];
}
for( i = 0; i < 3*n; i++ ) {
work_i[i] = work[i];
}
for( i = 0; i < n; i++ ) {
iwork_i[i] = iwork[i];
}
LAPACKE_dpp_trans( LAPACK_COL_MAJOR, uplo, n, ap_i, ap_r );
LAPACKE_dge_trans( LAPACK_COL_MAJOR, n, nrhs, b_i, ldb, b_r, nrhs+2 );
LAPACKE_dge_trans( LAPACK_COL_MAJOR, n, nrhs, x_i, ldx, x_r, nrhs+2 );
info_i = LAPACKE_dtprfs_work( LAPACK_ROW_MAJOR, uplo_i, trans_i, diag_i,
n_i, nrhs_i, ap_r, b_r, ldb_r, x_r, ldx_r,
ferr_i, berr_i, work_i, iwork_i );
failed = compare_dtprfs( ferr, ferr_i, berr, berr_i, info, info_i, nrhs );
if( failed == 0 ) {
printf( "PASSED: row-major middle-level interface to dtprfs\n" );
} else {
printf( "FAILED: row-major middle-level interface to dtprfs\n" );
}
/* Initialize input data, call the row-major high-level
* interface to LAPACK routine and check the results */
for( i = 0; i < (n*(n+1)/2); i++ ) {
ap_i[i] = ap[i];
}
for( i = 0; i < ldb*nrhs; i++ ) {
b_i[i] = b[i];
}
for( i = 0; i < ldx*nrhs; i++ ) {
x_i[i] = x[i];
}
for( i = 0; i < nrhs; i++ ) {
ferr_i[i] = ferr_save[i];
}
for( i = 0; i < nrhs; i++ ) {
berr_i[i] = berr_save[i];
}
for( i = 0; i < 3*n; i++ ) {
work_i[i] = work[i];
}
for( i = 0; i < n; i++ ) {
iwork_i[i] = iwork[i];
}
/* Init row_major arrays */
LAPACKE_dpp_trans( LAPACK_COL_MAJOR, uplo, n, ap_i, ap_r );
LAPACKE_dge_trans( LAPACK_COL_MAJOR, n, nrhs, b_i, ldb, b_r, nrhs+2 );
LAPACKE_dge_trans( LAPACK_COL_MAJOR, n, nrhs, x_i, ldx, x_r, nrhs+2 );
info_i = LAPACKE_dtprfs( LAPACK_ROW_MAJOR, uplo_i, trans_i, diag_i, n_i,
nrhs_i, ap_r, b_r, ldb_r, x_r, ldx_r, ferr_i,
berr_i );
failed = compare_dtprfs( ferr, ferr_i, berr, berr_i, info, info_i, nrhs );
if( failed == 0 ) {
printf( "PASSED: row-major high-level interface to dtprfs\n" );
} else {
printf( "FAILED: row-major high-level interface to dtprfs\n" );
}
/* Release memory */
if( ap != NULL ) {
LAPACKE_free( ap );
}
if( ap_i != NULL ) {
LAPACKE_free( ap_i );
}
if( ap_r != NULL ) {
LAPACKE_free( ap_r );
}
if( b != NULL ) {
LAPACKE_free( b );
}
if( b_i != NULL ) {
LAPACKE_free( b_i );
}
if( b_r != NULL ) {
LAPACKE_free( b_r );
}
if( x != NULL ) {
LAPACKE_free( x );
}
if( x_i != NULL ) {
LAPACKE_free( x_i );
}
if( x_r != NULL ) {
LAPACKE_free( x_r );
}
if( ferr != NULL ) {
LAPACKE_free( ferr );
}
if( ferr_i != NULL ) {
LAPACKE_free( ferr_i );
}
if( ferr_save != NULL ) {
LAPACKE_free( ferr_save );
}
if( berr != NULL ) {
LAPACKE_free( berr );
}
if( berr_i != NULL ) {
LAPACKE_free( berr_i );
}
if( berr_save != NULL ) {
LAPACKE_free( berr_save );
}
if( work != NULL ) {
LAPACKE_free( work );
}
if( work_i != NULL ) {
LAPACKE_free( work_i );
}
if( iwork != NULL ) {
LAPACKE_free( iwork );
}
if( iwork_i != NULL ) {
LAPACKE_free( iwork_i );
}
return 0;
}
