mkl_sparse_set_qr_hint

Syntax

stat = mkl_sparse_set_qr_hint ( A, hint )

Include Files

• mkl_sparse_qr.f90

Description

You can use this routine to enable a pivot strategy in the case of an ill-conditioned matrix.

Input Parameters

A

SPARSE_MATRIX_T

Handle containing a sparse matrix in an internal data structure.

hint

C_INT

Value specifying whether to use pivoting.

Note

The only value currently supported is SPARSE_QR_WITH_PIVOTS, which enables the use of a pivot strategy for an ill-conditioned matrix.

Output Parameters

stat

INTEGER

Value indicating whether the operation was successful, and if not, why:

SPARSE_STATUS_SUCCESS	The operation was successful.
SPARSE_STATUS_NOT_INITIALIZED	The routine encountered an empty handle or matrix array.
SPARSE_STATUS_ALLOC_FAILED	Internal memory allocation failed.
SPARSE_STATUS_INVALID_VALUE	The input parameters contain an invalid value.
SPARSE_STATUS_EXECUTION_FAILED	Execution failed.
SPARSE_STATUS_INTERNAL_ERROR	An error in algorithm implementation occurred.
SPARSE_STATUS_NOT_SUPPORTED	The requested operation is not supported.