Intel® oneAPI Math Kernel Library Developer Reference - Fortran

mkl_sparse_set_memory_hint

Provides memory requirements for performance optimization purposes.

Syntax

stat = mkl_sparse_set_memory_hint (A, policy)

Include Files

Description

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

Optimization Notice

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

This notice covers the following instruction sets: SSE2, SSE4.2, AVX2, AVX-512.

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.