Intel® oneAPI Math Kernel Library Developer Reference - C

mkl_cbwr_get_auto_branch

Automatically detects the CNR code branch for your platform.

Syntax

int mkl_cbwr_get_auto_branch (void);

Include Files

Description

The mkl_cbwr_get_auto_branch function uses a run-time CPU check to return a CNR branch that is optimized for the processor where the program is currently running.

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.

Return Values

Name

Type

Description

setting

int

Automatically detected CNR branch. May be any specific branch listed in Named Constants for CNR Control.

See Also