Projects / FFTW


FFTW is a fast C FFT library. It includes complex, real, symmetric, multidimensional, and parallel transforms, and can handle arbitrary array sizes efficiently.It is typically faster than other freely available FFT implementations, and is even competitive with vendor-tuned libraries (benchmarks are available at the homepage). To achieve this performance, it uses novel code generation and runtime self optimization techniques (along with many other tricks).

Operating Systems

Recent releases

  •  16 Mar 2014 13:57

    Release Notes: This release adds minor bugfixes and new alignment_of and sprint_plan APIs.

    •  26 Nov 2012 03:03

      Release Notes: This release fixes a deadlock bug in MPI, has faster ARM NEON support, and has faster single-precision AVX support.

      •  02 Mar 2012 02:28

        Release Notes: This release adds ARM NEON support, implements faster estimate-mode planning, and improves Fortran interface portability.

        •  27 Jul 2011 17:41

          Release Notes: A finalized release of AVX, MPI, and other new features in 3.3-beta1. Compared to the beta, the main change is support for simultaneous installation of OpenMP and POSIX-threads versions.

          •  27 Jun 2011 05:30

            Release Notes: Support was added for AVX instructions, MPI distributed-memory parallelism, Fortran 2003 interface, quadruple precision (gcc 4.6 or later), and several minor enhancements.


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