Overview

One issue which is central in developing a general purpose Fast Fourier Transform (FFT) subroutine on a distributed memory parallel machine is the data distribution. It is possible that different users would like to use the FFT routine with different data distributions. Thus, there is a need to design FFT schemes on distributed memory parallel machines which can support a variety of data distributions. An FFT implementation on a distributed memory parallel machine which works for a number of data distributions commonly encountered in scientific applications is presented. The problem of rearranging the data after computing the FFT is also addressed. The performance of the implementation on a distributed memory parallel machine Intel iPSC/860 is evaluated. Dubey, A. and Zubair, M. and Grosch, C. E. Unspecified Center NASA-CR-189724, NAS 1.26:189724, ICASE-92-56, AD-A258985 NAS1-18605; NAS1-19480; RTOP 505-90-52-01...

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