On Tue, Oct 28, 2014 at 1:32 AM, Jerome Kieffer <jerome.kief...@esrf.fr> wrote:
> On Tue, 28 Oct 2014 04:28:37 +0000 > Nathaniel Smith <n...@pobox.com> wrote: > > > It's definitely attractive. Some potential issues that might need dealing > > with, based on a quick skim: > > In my tests, numpy's FFTPACK isn't that bad considering > * (virtually) no extra overhead for installation > * (virtually) no plan creation time > * not that slower for each transformation > > Because the plan creation was taking ages with FFTw, numpy's FFTPACK was > often faster (overall) > > Cheers, > Ondrej says that f90 fftpack (his mod) runs faster than fftw. The main thing missing from fftpack is the handling of transform sizes that are not products of 2,3,4,5. Chuck
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