mkl_sparse_set_sorv

Developer Reference for Intel® oneAPI Math Kernel Library for C

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ID 766684

Date 7/13/2023

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mkl_sparse_set_sorv_hint

Sets an estimate of the number and type of upcoming mkl_sparse_?_sorv operations.

Syntax

sparse_status_t  mkl_sparse_set_sorv_hint(
    const sparse_sor_type_t type,
    const sparse_matrix_t A,
    const struct matrix_descr descr,
    const MKL_INT expected_calls
);

Include Files

mkl_spblas.h

Description

Use the mkl_sparse_set_sorv_hint routine to provide the Inspector-Executor Sparse BLAS API an estimate of the number of upcoming forward/backward sweeps or symmetric SOR preconditioner operations for performance optimization.

Product and Performance Information
Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex. Notice revision #20201201

Product and Performance Information

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

Notice revision #20201201

Input Parameters

type

Specifies the operation performed by the SORV preconditioner.

SPARSE_SOR_FORWARD

Performs forward sweep as defined by:

SPARSE_SOR_BACKWARD

Performs backward sweep as defined by:

SPARSE_SOR_SYMMETRIC

Preconditioner matrix could be expressed as:

descr

Structure specifying sparse matrix properties.

sparse_matrix_type_t type

Specifies the type of a sparse matrix:

SPARSE_MATRIX_TYPE_GENERAL

The matrix is processed as-is.
SPARSE_MATRIX_TYPE_SYMMETRIC

The matrix is symmetric (only the requested triangle is processed).
SPARSE_MATRIX_TYPE_HERMITIAN

The matrix is Hermitian (only the requested triangle is processed).
SPARSE_MATRIX_TYPE_TRIANGULAR

The matrix is triangular (only the requested triangle is processed).
SPARSE_MATRIX_TYPE_DIAGONAL

The matrix is diagonal (only diagonal elements are processed).
SPARSE_MATRIX_TYPE_BLOCK_TRIANGULAR

The matrix is block-triangular (only requested triangle is processed). Applies to BSR format only.
SPARSE_MATRIX_TYPE_BLOCK_DIAGONAL

The matrix is block-diagonal (only diagonal blocks are processed). Applies to BSR format only.

sparse_fill_mode_t mode

Specifies the triangular matrix part for symmetric, Hermitian, triangular, and block-triangular matrices:

SPARSE_FILL_MODE_LOWER

The lower triangular matrix part is processed.
SPARSE_FILL_MODE_UPPER

The upper triangular matrix part is processed.

sparse_diag_type_t diag

Specifies diagonal type for non-general matrices:

SPARSE_DIAG_NON_UNIT

Diagonal elements might not be equal to one.
SPARSE_DIAG_UNIT

Diagonal elements are equal to one.

A

Handle containing internal data.

expected_calls

Estimate of the number of calls to the execution routine.

Output Parameters

A: Handle containing internal data.

Return Values

The function returns a value indicating whether the operation was successful or not, and 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.

Parent topic: Inspector-Executor Sparse BLAS Analysis Routines

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