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HYBRID ATI/CPU AstroPulse: SP/DP Performance ?
Raistmer:
Yes, I already aware about new SDK and FFT sample, thanks :)
Will look at it. Currently I use Apple's OpenCL FFT sample that works on NV, on CPU but not on ATI GPU. Hope ATI's own sample will work on their hardware correctly ;D
Welcome here, btw :)
Raistmer:
1) provided by AMD FFT sample just hardcoded size of 1024 FFT - not suitable.
2) variable-size FFT provided by Apple still produced incorrect results on GPU with SDK 2.01
Frizz:
I recently stumbled upon some speedy FFT code by Vasily Volkov:
http://forums.nvidia.com/index.php?showtopic=69801
It's CUDA.
Just thought I might post this here.
Jason G:
Cheers Frizz23. If you're using last release V12, you have a test (experimental) kernel which is a Volkov FFT size 256 with integrated powerspectrum. Cuda V2.3 DLLs made a significant FFT upgrade shortly after this release that did make the FFT less important, but still very interesting. I'm finding nVidia's clowning around with facebook announcements pretty irritating at this time, so please excuse me if I dance around threatening to trade in my nVidia registered developer credentials for a hamburger with cheese ...
Jason
Frizz:
--- Quote from: Jason G on 22 Feb 2010, 02:10:57 pm ---I'm finding nVidia's clowning around with facebook announcements pretty irritating at this time, so please excuse me if I dance around threatening to trade in my nVidia registered developer credentials for a hamburger with cheese ...
--- End quote ---
Yeah me too. Looks like they have huge problems with Fermi. But instead of coming clear they clown around, rebrand their old crap (GT330), ...
I would love to switch to ATI - but their drivers are even worse than nVidias.
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