[ardour-dev] GPU audio processing?
Stefan de Konink
skinkie at xs4all.nl
Mon Oct 17 04:54:06 PDT 2005
On Mon, 17 Oct 2005, TommyDrum wrote:
> I wanted to post this link as this seems an interesting article in
> regards of using the GPU for realtime audio processing:
> Interesting, isn't it?
We did some programming in BrookGPU, we tested it with multiplying
Testresults: Results based on the current package:
cpu: 3.4 seconds
ati 9800XT dx9 mode: 9.5 seconds
NVIDIA 6800GT dx9 mode: 16.0 seconds
NVIDIA 6800GT nv30gl mode: 13.8 seconds
We think the problem is basically in memory allocation wich is very time
consuming. Next to that rewriting was a 'new' concept. Maybe if you
optimize for a specific shader some advantages could be gathered.
Then again I think more standard instructionsets as MMX/SSE/3DNow etc.
should be used first imho.
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