[linux-audio-user] FFT on GPU

[james at dis-dot-dat.net]

On Mon, 29 May, 2006 at 04:49PM -0400, Dan Easley spake thus:
> Slashdot recently mentioned the following FFT via GPU library:
> 
> http://gamma.cs.unc.edu/GPUFFTW/index.html
> 
> (slashdot article) 
> http://hardware.slashdot.org/hardware/06/05/29/1424213.shtml
> 
> it has a custom license, which seems friendly enough, but i'd prefer GPL.

It would be nice if fftw switched to this when it was available.

Or would it?  Maybe that would cause too much heterogeneity of
platform.  Small changes from one system to another (ATI instead of
nVidia, for example) could change performance drastically.  You'd be
unable to rely on an "average" level of performance.  I might write
something nifty with my nVidia card and it be unusable by some
significant percentage of people because they just can't run it that
fast.

I dunno.  What does everyone think?  It's nice, but should we use it?

James
 
>