Parallelization Of Fast Fourier Transforms
Author(s)
P. Bennett
Abstract
Parallelization of fast fourier transforms
P. Bennett
Albuquerque High Performance Computing Centre, University of New
Mexico, USA
Abstract
The increasing success of High Performance Scalable Computing has brought
with it enhanced capabilities in numerical modeling using spectral methods
and large image processing. These types of algorithms require portable and
reliable fast fourier transforms, or ffts. Unfortunately, many of the parallel
ffts now available suffer from not being portable and not being as flexible as
desired. In order to fill this need, Numerical Algorithms Group, Ltd., has
ported their serial/vector ffts C06FUF and C06FXF to distributed memory
architectures, with the communication enabled by the Basic Linear Algebra
Communication Subroutines, or BLACS. The parallel ffts C06FUFP arid
C06FXFP are portable and reliable, in addition to scaling well and being as
flexible as their serial counterparts. This paper will present a discussion of
the parallelization algorithm used t
Keywords
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