Developer Reference

  • 2020.2
  • 07/15/2020
  • Public Content
Contents

mkl_sparse_?_qr_factorize

Factorization step of the SPARSE QR solver.

Syntax

stat
=
mkl_sparse_d_qr_factorize
(
A
,
alt_values
)
stat
=
mkl_sparse_s_qr_factorize
(
A
,
alt_values
)
Include Files
  • mkl_sparse_qr.f90
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
SPARSE_MATRIX_T
Handle containing a sparse matrix in an internal data structure.
alt_values
C_FLOAT
for
mkl_sparse_s_qr_factorize
;
C_DOUBLE
for
mkl_sparse_d_qr_factorize
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
.
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.

Product and Performance Information

1

Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. Certain optimizations not specific to Intel microarchitecture are reserved for Intel microprocessors. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice.

Notice revision #20110804