I was thinking more about Altivec and PPC where the gains will be huge. I had thoughts of using Apple's vDSP lib because it's FFT produces some ridiculous throughput (10+GFLOPS on a G5), but fftw gets about 2/3 the performance and is cross-platform which is a plus.
it's possible to build fftw for altivec using the configure script ... but i'm not sure what exactly it's doing ... what the performance gains are...
cheers...
Tim mailto:TimBlechmann@gmx.de ICQ: 96771783 -- The only people for me are the mad ones, the ones who are mad to live, mad to talk, mad to be saved, desirous of everything at the same time, the ones who never yawn or say a commonplace thing, but burn, burn, burn, like fabulous yellow roman candles exploding like spiders across the stars and in the middle you see the blue centerlight pop and everybody goes "Awww!" Jack Kerouac