Difference between revisions of "FFTW"

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|description=Freely available high performance library to perform fast Fourier transformations
 
|description=Freely available high performance library to perform fast Fourier transformations
 
|license=free
 
|license=free
|research areas=Computational science
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|fields=Computational science; Performance library
 
}}
 
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Revision as of 14:46, 14 September 2012


FFTW (Fastest Fourier Transform in the West) is a high performance library to calculate discrete Fourier transformations. The library is freely available and typically easy to install.

The software is self optimising, trying several algorithms at run time and choosing the best performing one. To achieve its high computational speed latest version supports the SSE and AVX instructions of the latest x86-processors.

The library contains parallel versions using either of pthreads, OpenMP or MPI. Besides the current version 3.x, there is the older version 2.x, which have different application interfaces. It is not recommended to use version 2.x for new developments, however it is still widely used in legacy code.

License

License: Free.

GNU GPL version 2

Availability

ResourceCentreDescription
AbiskoHPC2Ncapability resource of 153 TFLOPS with full bisectional infiniband interconnect
AlarikLUNARCthroughput cluster resource of 40 TFLOPS
AuroraLUNARCthroughput/general purpose cluster resource
PlatonLUNARCthroughput cluster resource of 26 TFLOPS

Links