[SciPy-user] parallel usage of fftw

Glen W. Mabey Glen.Mabey@swri....
Fri Feb 9 14:57:14 CST 2007


I've read at


that getting fftw to use multiple threads to speed up performance on SMP
machines is quite easy to initiate.

Has anyone used tried this?  

I haven't ever used fftw without scipy, but if there were some way to
easily implement a python interface such that fftw_init_threads(),
fftw_plan_with_nthreads(), and fftw_cleanup_threads() could be called,
it would be really cool.

I'm having a bit of a time trying to figure out how fftpack is married
to fftw ... maybe I should just try calling those functions with ctypes?

Any input would be greatly appreciated.


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