This directory contains a number of utilities to test FFT algorithms.
Subdirectories contain the actual FFT libraries.

To build the timing routines you should just need to type
    make
from this directory.  This should generate a number of different FFT
timing programs named "time_*", which take the number of elements to
FFT as an argument.  You can then execute all of them with the command
    csh -f timer.csh
to compare the algorithms.

The Makefile and fft_timer.c programs are rather bloated since they
are designed to work for a large number of different FFT programs.

If you have perl, you can use the commands
    csh -f timer.csh > summary.out
    perl parseout summary.out
to generate an easier to read table of times used by each FFT.

    Ron

