[SciPy-User] [ANN] pyfftw-0.2 released

David Cournapeau david@silveregg.co...
Mon Feb 15 04:46:55 CST 2010


Sebastian Haase wrote:

> 
> Has this changed from FFTW2 to FFTW3 ?
> It would really limit the use of plans, and make overall FFTs much
> slower. In my specific case I very often have 512x512 single-precision
> real arrays (images), that I would do ffts over and over again. But
> the pointers would change ....

You can, but you need to use the advanced plan API, or use the recently 
added new-array execute function:

http://www.fftw.org/fftw3_doc/New_002darray-Execute-Functions.html#New_002darray-Execute-Functions

cheers,

David


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