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Old 2011-01-06, 20:11   #1
nuggetprime
 
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Default Quickest fft library

Just courios,what is the quickest portable fft library for double-precision real 1 d transforms?
I read somewhere it was djbfft but is it still the fastest?
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Old 2011-01-06, 21:09   #2
bsquared
 
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I had always thought it was FFTW.
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Old 2011-01-08, 21:29   #3
henryzz
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Quote:
Originally Posted by bsquared View Post
I had always thought it was FFTW.
Does anyone know how fast this is in comparison with GWnum?
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Old 2011-01-09, 01:24   #4
jasonp
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You can explore their benchmark page.

djbfft is very fast if you have a 12 year old computer; he hasn't updated it in a long time, and it never supported longer FFT lengths.

Last fiddled with by jasonp on 2011-01-09 at 01:24
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