High Performance Software


FFTW is a freeware C subroutine library for computing the discrete Fourier transform (DFT) in one or more dimensions, of arbitrary input size, and of both real and complex data (as well as of even/odd data, i.e. the discrete cosine/sine transforms or DCT/DST).

FFTW is not included in the default user path, it is accessible through modules named fftw. Check module avail for full list of installed versions of fftw and current default. Command module fftw show shows the libraty location.

For more information, visit FFTW Home Page.