[SciPy-User] Float32 FFT
Wed Feb 3 04:43:40 CST 2010
Thanks David & Sebastian,
will look into the scipy trunk & priithon options. Alternatively might find the motivation to dust off some old fftw3 based code I've got floating round which should in theory be a little faster (I'm doing multiple FFTs of the same size, with the potential to do the memory allocation and plan generation just once at the start).
----- Original Message ----
From: Sebastian Haase <email@example.com>
To: David Baddeley <firstname.lastname@example.org>; SciPy Users List <email@example.com>
Sent: Wed, 3 February, 2010 9:42:54 PM
Subject: Re: [SciPy-User] Float32 FFT
On Wed, Feb 3, 2010 at 3:32 AM, David Baddeley
> Does anyone know if there is a way of doing single precision ffts (more explicitly n-dimensional ffts using fftn) in scipy/numpy? The standard functions all seem to force a conversion to double precision and with large (~1000x1000x50) images the memory starts to add up.
> I'm running numpy 1.2.1, scipy 0.7.0, python 2.6 on linux x64.
I have an fftw2 wrapper (SWIGged) in Priithon (see googlecode).
It is based on Python 2.5. A kind of "super package" binary version
(also for 64 bit Linux) is downloadable.
(FFTW is GPL). (The wrapper could be BSD).
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