Where to Get FFTX

FFTX is available on GitHub as open source under a non-viral BSD-style license: https://github.com/spiral-software/fftx/

It builds and runs on CPU and GPU backends on several platforms:

  • CPU backend on Windows, Linux, macOS, Raspberry Pi;

  • CUDA backend on the Perlmutter system at the National Energy Research Scientific Computing Center;

  • HIP backend on the Frontier system at the Oak Ridge Leadership Computing Facility;

  • SYCL backend on the Aurora system at the Argonne Leadership Computing Facility.

See the README on GitHub for more information.