fft_openmp, a C++ code which demonstrates the computation of a Fast Fourier Transform in parallel, using OpenMP.
In the BASH shell, the program could be run with 2 threads using the commands:
export OMP_NUM_THREADS=2 ./fft_openmp
The information on this web page is distributed under the MIT license.
fft_openmp is available in a C version and a C++ version and a Fortran90 version.
openmp_test, a C++ code which uses the OpenMP application program interface for parallel computations in a shared memory environment.
sftpack, a C++ code which implements the "slow" Fourier transform, intended as a teaching tool and comparison with the fast Fourier transform.