Intel MKL

The Intel MKL (Math Kernel Library) can be tricky to link. See Intel’s MKL Link Line Advisor to get the appropriate command line.

The Intel MKL includes drop-in wrappers for FFTW3.

On AMD EPIC processors, especially Intel MKL versions before release 202.1 did not deliver best performance by default. Performance may significantly increase if both environment variables, MKL_DEBUG_CPU_TYPE=5 and MKL_CBWR=AUTO, are set at execution time. But be careful to check your results for correctness.

Further information