Developer Reference for Intel® oneAPI Math Kernel Library for Fortran

ID 766686
Date 3/22/2024
Public

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Appendix D: FFTW Interface to Intel® Math Kernel Library

Intel® oneAPI Math Kernel Library (oneMKL) offers FFTW2 and FFTW3 interfaces to Intel® oneAPI Math Kernel Library (oneMKL) Fast Fourier Transform and Trigonometric Transform functionality. The purpose of these interfaces is to enable applications using FFTW (www.fftw.org) to gain performance with Intel® oneAPI Math Kernel Library (oneMKL) without changing the program source code.

Both FFTW2 and FFTW3 interfaces are provided in open source as FFTW wrappers to Intel® oneAPI Math Kernel Library (oneMKL). For ease of use, FFTW3 interface is also integrated in Intel® oneAPI Math Kernel Library (oneMKL).