Hi Y'all,

I found another issue with CUDA to pass on if no one has already noticed it. On my system it seems that the CUDA processing is taking significant amounts of CPU power. While I know they aren't fully accurant the performance meters on my quad core on showing cuding often running at 25% (the max per core). When I first start the CUDA on my one machine that ran it, the CUDA processes would not show anything on the CPU.

Please, let me know if there is any more information I can share about this.

Thanks,
Gary

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at start workunits take alot of cpu (50% on my c2d) for the first 15-20 seconds, then it starts using gfx and only 0.12% of cpu.

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in my case any cuda wotk unit (seti or GPUGRID) shows 40%+ usage of the CPU for its entire run (using SysInternals ProcExp)- it IS showing that it is the cuda version of the app, and there are two "non-cuda" tasks also running, each only getting 1/2 of the second core ...
This is a lenovo T61P laptop.

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On my desktop it is the same as Ken says. Uses the full allocation of the CPU Core it is on. However, my laptop it is only using a few percent of the core 1 or 2%.

My guess is that it is related to the fact that my Desktop is a dual monitor 256mb video card. Am I right in guessing that SETI at home will use the CPU for CUDA units when the GPU isn't able to do them?

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