A C library for computing discrete Fourier transforms in one or more dimensions.
Module name
fftw3
FFTW (Fastest Fourier Transform in the West) is a highly optimized library for computing discrete Fourier transforms (DFTs). Multiple versions are available, optimized for various compilers and MPI configurations. Incompatible versions of FFTW, MPI, or compilers can lead to errors or degraded performance.
Applies to
Data processing