- If the requested number of threads exceeds the number of physical cores (perhaps because of using the Intel® Hyper-Threading Technology),scales down the number of OpenMP threads to the number of physical cores.Intel® oneAPI Math Kernel Library
- If you are able to detect the presence of a message-passing interface (MPI), but cannot determine whether it has been called in a thread-safe mode,runs one OpenMP thread.Intel® oneAPI Math Kernel Library
- MKL_NUM_THREADSto some reasonable value
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