lapack_int LAPACKE_dpstrf_work( int matrix_order, char uplo, lapack_int n,
double* a, lapack_int lda, lapack_int* piv,
lapack_int* rank, double tol, double* work )
{
lapack_int info = 0;
if( matrix_order == LAPACK_COL_MAJOR ) {
/* Call LAPACK function and adjust info */
LAPACK_dpstrf( &uplo, &n, a, &lda, piv, rank, &tol, work, &info );
if( info < 0 ) {
info = info - 1;
}
} else if( matrix_order == LAPACK_ROW_MAJOR ) {
lapack_int lda_t = MAX(1,n);
double* a_t = NULL;
/* Check leading dimension(s) */
if( lda < n ) {
info = -5;
LAPACKE_xerbla( "LAPACKE_dpstrf_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 ) {
info = LAPACK_TRANSPOSE_MEMORY_ERROR;
goto exit_level_0;
}
/* Transpose input matrices */
LAPACKE_dpo_trans( matrix_order, uplo, n, a, lda, a_t, lda_t );
/* Call LAPACK function and adjust info */
LAPACK_dpstrf( &uplo, &n, a_t, &lda_t, piv, rank, &tol, work, &info );
if( info < 0 ) {
info = info - 1;
}
/* Transpose output matrices */
LAPACKE_dpo_trans( LAPACK_COL_MAJOR, uplo, n, a_t, lda_t, a, lda );
/* Release memory and exit */
LAPACKE_free( a_t );
exit_level_0:
if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
LAPACKE_xerbla( "LAPACKE_dpstrf_work", info );
}
} else {
info = -1;
LAPACKE_xerbla( "LAPACKE_dpstrf_work", info );
}
return info;
}
lapack_int LAPACKE_dposvx_work( int matrix_layout, 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* ferr, double* berr,
double* work, lapack_int* iwork )
{
lapack_int info = 0;
if( matrix_layout == LAPACK_COL_MAJOR ) {
/* Call LAPACK function and adjust info */
LAPACK_dposvx( &fact, &uplo, &n, &nrhs, a, &lda, af, &ldaf, equed, s, b,
&ldb, x, &ldx, rcond, ferr, berr, work, iwork, &info );
if( info < 0 ) {
info = info - 1;
}
} else if( matrix_layout == 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;
/* Check leading dimension(s) */
if( lda < n ) {
info = -7;
LAPACKE_xerbla( "LAPACKE_dposvx_work", info );
return info;
}
if( ldaf < n ) {
info = -9;
LAPACKE_xerbla( "LAPACKE_dposvx_work", info );
return info;
}
if( ldb < nrhs ) {
info = -13;
LAPACKE_xerbla( "LAPACKE_dposvx_work", info );
return info;
}
if( ldx < nrhs ) {
info = -15;
LAPACKE_xerbla( "LAPACKE_dposvx_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 ) {
info = LAPACK_TRANSPOSE_MEMORY_ERROR;
goto exit_level_0;
}
af_t = (double*)LAPACKE_malloc( sizeof(double) * ldaf_t * MAX(1,n) );
if( af_t == NULL ) {
info = LAPACK_TRANSPOSE_MEMORY_ERROR;
goto exit_level_1;
}
b_t = (double*)LAPACKE_malloc( sizeof(double) * ldb_t * MAX(1,nrhs) );
if( b_t == NULL ) {
info = LAPACK_TRANSPOSE_MEMORY_ERROR;
goto exit_level_2;
}
x_t = (double*)LAPACKE_malloc( sizeof(double) * ldx_t * MAX(1,nrhs) );
if( x_t == NULL ) {
info = LAPACK_TRANSPOSE_MEMORY_ERROR;
goto exit_level_3;
}
/* Transpose input matrices */
LAPACKE_dpo_trans( matrix_layout, uplo, n, a, lda, a_t, lda_t );
if( LAPACKE_lsame( fact, 'f' ) ) {
LAPACKE_dpo_trans( matrix_layout, uplo, n, af, ldaf, af_t, ldaf_t );
}
LAPACKE_dge_trans( matrix_layout, n, nrhs, b, ldb, b_t, ldb_t );
/* Call LAPACK function and adjust info */
LAPACK_dposvx( &fact, &uplo, &n, &nrhs, a_t, &lda_t, af_t, &ldaf_t,
equed, s, b_t, &ldb_t, x_t, &ldx_t, rcond, ferr, berr,
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 );
/* Release memory and exit */
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:
if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
LAPACKE_xerbla( "LAPACKE_dposvx_work", info );
}
} else {
info = -1;
LAPACKE_xerbla( "LAPACKE_dposvx_work", info );
}
return info;
}
lapack_int LAPACKE_dpotrs_work( int matrix_layout, char uplo, lapack_int n,
lapack_int nrhs, const double* a,
lapack_int lda, double* b, lapack_int ldb )
{
lapack_int info = 0;
if( matrix_layout == LAPACK_COL_MAJOR ) {
/* Call LAPACK function and adjust info */
LAPACK_dpotrs( &uplo, &n, &nrhs, a, &lda, b, &ldb, &info );
if( info < 0 ) {
info = info - 1;
}
} else if( matrix_layout == LAPACK_ROW_MAJOR ) {
lapack_int lda_t = MAX(1,n);
lapack_int ldb_t = MAX(1,n);
double* a_t = NULL;
double* b_t = NULL;
/* Check leading dimension(s) */
if( lda < n ) {
info = -6;
LAPACKE_xerbla( "LAPACKE_dpotrs_work", info );
return info;
}
if( ldb < nrhs ) {
info = -8;
LAPACKE_xerbla( "LAPACKE_dpotrs_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 ) {
info = LAPACK_TRANSPOSE_MEMORY_ERROR;
goto exit_level_0;
}
b_t = (double*)LAPACKE_malloc( sizeof(double) * ldb_t * MAX(1,nrhs) );
if( b_t == NULL ) {
info = LAPACK_TRANSPOSE_MEMORY_ERROR;
goto exit_level_1;
}
/* Transpose input matrices */
LAPACKE_dpo_trans( matrix_layout, uplo, n, a, lda, a_t, lda_t );
LAPACKE_dge_trans( matrix_layout, n, nrhs, b, ldb, b_t, ldb_t );
/* Call LAPACK function and adjust info */
LAPACK_dpotrs( &uplo, &n, &nrhs, a_t, &lda_t, b_t, &ldb_t, &info );
if( info < 0 ) {
info = info - 1;
}
/* Transpose output matrices */
LAPACKE_dge_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( a_t );
exit_level_0:
if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
LAPACKE_xerbla( "LAPACKE_dpotrs_work", info );
}
} else {
info = -1;
LAPACKE_xerbla( "LAPACKE_dpotrs_work", info );
}
return info;
}
