FFTW: Fastest Fourier Transform in the West

Details FFTW: Fastest Fourier Transform in the West FFTW: Fastest Fourier Transform in the West

Jan 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012ascl.soft01015f&link_type=abstract

Astrophysics Source Code Library, record ascl:1201.015

Astronomy and Astrophysics

Astrophysics

Scientific paper

FFTW is a 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).Benchmarks performed on a variety of platforms show that FFTW's performance is typically superior to that of other publicly available FFT software, and is even competitive with vendor-tuned codes. In contrast to vendor-tuned codes, however, FFTW's performance is portable: the same program will perform well on most architectures without modification.The FFTW library is required by other codes such as StarCrash and Hammurabi.

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