Setting Number of Threads

By default, the number of threads for Intel IPP threaded libraries equals the number of processors in the system. If the value of the OMP_NUM_THREADS environment variable is less than the number of processors in the system, then the number of threads for Intel IPP threaded libraries equals the value of the OMP_NUM_THREADS environment variable.

To configure the number of threads used by Intel IPP internally, call the function ippSetNumThreads(n) at the very beginning of an application. n is the desired number of threads (1, ...). To disable internal parallelization, call ippSetNumThreads(1).

Getting Information on Number of Threads

To find the number of threads created by the Intel IPP, call function ippGetNumThreads.

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

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