Developer Reference for Intel® oneAPI Math Kernel Library for Fortran

ID 766686
Date 6/24/2024
Public

A newer version of this document is available. Customers should click here to go to the newest version.

Document Table of Contents

mkl_sparse_set_memory_hint

Provides memory requirements for performance optimization purposes.

Syntax

stat = mkl_sparse_set_memory_hint (A, policy)

Include Files

  • mkl_spblas.f90

Description

The mkl_sparse_set_memory_hint routine allocates additional memory for further performance optimization purposes.

Product and Performance Information

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

Notice revision #20201201

Input Parameters

policy

C_INT.

Specify memory utilization policy for optimization routine using these types:

SPARSE_MEMORY_NONE

Routine can allocate memory only for auxiliary structures (such as for workload balancing); the amount of memory is proportional to vector size.

SPARSE_MEMORY_AGGRESSIVE

Default.

Routine can allocate memory up to the size of matrix A for converting into the appropriate sparse format.

Output Parameters

A

SPARSE_MATRIX_T.

Handle containing internal data.

stat

INTEGER

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.