Developer Reference for Intel® oneAPI Math Kernel Library - C

Developer Reference

  • 2021.1
  • 12/04/2020
  • Public Content
Contents

mkl_sparse_set_memory_hint

Provides memory requirements for performance optimization purposes.

Syntax

sparse_status_t mkl_sparse_set_memory_hint
(
const sparse_matrix_t
A
,
const sparse_memory_usage_t
policy
);
Include Files
  • mkl_spblas.h
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
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
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.

Product and Performance Information

1

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