SETI MB CUDA for Linux

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Claggy:

--- Quote from: Hefto99 on 28 Jan 2009, 06:01:23 am ---I have another question:
CPU utilization is still almost 100% for SETI and temp. on the GK stays low (50 C).

Task Status shows " Running (0.04% CPUs, 1 CUDA)", progress proceeds very slowly.

Is it possible that CPU is too weak to feed Graphic Card (Athlon X2 3800+) ?

--- End quote ---

It sounds as if the app is running in CPU fallback mode if it's running at 100%,
normally happens if GPU doesn't meet the memory requirements, when the first one completes, check your results.
I've been testing 6.08 (on windows) on Seti Beta with a 8400M GS, since it's only got 128Mb,
it goes into CPU fallback mode, and takes 4 to 7 hours per WU, a lot slower than stock 6.03, let alone AK_V8.
You could try different resolutions/colour depths to see if it makes a difference.

Claggy

koschi:
The CUDA Linux app on my Q6600 with 9800GT (512MB) is also consuming 100% (so one full core) CPU time :-/
It is not working in fallback mode or like that, the times are 2-3 times faster than with the V8 app and GPU temperature is the same as when running GPUGRID.

http://setiathome.berkeley.edu/results.php?hostid=4425787&offset=200

sunu:

--- Quote from: koschi on 28 Jan 2009, 07:02:15 pm ---The CUDA Linux app on my Q6600 with 9800GT (512MB) is also consuming 100% (so one full core) CPU time :-/

--- End quote ---

Yes, for performance reasons (both cuda app itself and general desktop responsiveness), Crunch3r made it that way .

koschi:
Thanks, if that was intended I didn't say anything ;-)

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