Architecture Support

Intel® Math Kernel Library (Intel® MKL) for OS X* supports the IA-32, Intel® 64, and compatible architectures in its universal libraries, located in the <mkl directory>/lib directory.


Universal libraries contain both 32-bit and 64-bit code. If these libraries are used for linking, the linker dispatches appropriate code as follows:

  • A 32-bit linker dispatches 32-bit code and creates 32-bit executable files.
  • A 64-bit linker dispatches 64-bit code and creates 64-bit executable files.

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