The AMD-optimized version of Fast Fourier Transform Algorithm (FFTW) is an open-source implementation of FFTW that offers a comprehensive collection of fast C routines for computing the Discrete Fourier Transform (DFT) and various special cases thereof that are optimized for AMD EPYC and other AMD “Zen”-based processors. It can compute transforms of real and complex valued arrays of arbitrary size and dimension.AMD-FFTW (Fastest Fourier Transform in the West)