Developer Guide for Intel® Integrated Performance Primitives Cryptography 2019
By default, the number of threads for Intel IPP Cryptography threaded libraries follows the OpenMP* default, which is the number of logical processors visible to the operating system. If the value of the OMP_NUM_THREADS environment variable is less than the number of processors, then the number of threads for Intel IPP Cryptography threaded libraries equals the value of the OMP_NUM_THREADS environment variable.
To configure the number of threads used by Intel IPP Cryptography internally, at the very beginning of an application call the ippcpSetNumThreads(n) function, where n is the desired number of threads (1, ...). To disable internal parallelization, call the ippcpSetNumThreads(1) function.
To find the number of threads created by the Intel IPP Cryptography, call the ippcpGetNumThreads function.
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 |