Developer Reference

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mkl_sparse_?_qr_factorize

Factorization step of the SPARSE QR solver.

Syntax

sparse_status_t
mkl_sparse_d_qr_factorize
(
sparse_matrix_t
A
,
double
*alt_values
);
sparse_status_t
mkl_sparse_s_qr_factorize
(
sparse_matrix_t
A
,
float
*alt_values
);
Include Files
  • mkl_sparse_qr.h
Description
The
mkl_sparse_?_qr_factorize
routine perform numerical factorization of matrix
A
.
Currently,
mkl_sparse_?_qr_factorize
supports only CSR format for the input matrix.
Input Parameters
A
Handle containing a sparse matrix in an internal data structure.
alt_values
Array with alternative values. Must be the size of the non-zeroes in the initial input matrix. When passed to the routine, these values will be used during the factorization step instead of the values stored in handle
A
.
Return Values
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.

Product and Performance Information

1

Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex.