Forum > GPU crunching
V10/11 of modified SETI MB CUDA + opt AP package for full multi-GPU+CPU use
elec999:
Where can I find the app_info on seti.
Thanks
galadriel:
http://setiathome.berkeley.edu/forum_thread.php?id=52589
Raistmer:
Fresh V11 SETI CUDA build for standalone/team use with single GPU-multi core systems (try to restrict boinc.exe from using first core to achieve better GPU performance )
I found no speed difference between stock CUDA runtime (2.0 probably) and 2.1 CUDA runtime I used for building this app so use that version wich gives better stability on your host (no GPU freezing).
ADDON: added build w/o affinity lock. Maybe it best suited for high performance multi-GPU systems while build with affinity lock on first core could achieve better performance on single-GPU systems (with boinc.exe excluded from first core).
ADDON2: Build with VLAR kill mod disable added.
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elec999:
I plan to install three more video cards today. a 9800GTX+, two 8800GTS. Do you think this is a good idea. I will install to my B5. It can handle four video cards. And when my XFX board returns from RMA, I will install another 8800GT.
Thanks
codeman05:
Hey guys, with much help from Claggy, I have the optimizations working correctly on my rig.
However, after comparing my CUDA results with a couple other guys on the SETI forum, it seems like my performance may be a little off.
Rig Specs:
i7 920 @ 4.0GHz w/ Vista x64
3x GTX285 GPU's
BOINC 6.6.20
My average CUDA WU completion time is anywhere from 7 minutes to 15 minutes...usually around 15 minutes lately.
I am crunching AP at the same time and BOINC is running 8 AP's concurrently...for a total of 11 processes.
I've been reading reports of guys doing 3-5 minute CUDA wu's with virtually the exact same setup (both proc and gpu's). Do I just have some really "bad angle" WU's...or is this a tradeoff of running both CUDA and AP...or is this unusual?
The GPU's don't really seem to be fully utilized. I know this is a crappy way of measuring, but my GPU temps seem to be about 10-15 degree's cooler when crunching than before...again a bad example, but seems to indicate less load than before the optimizers.
Thanks for the assistance, and all of your hard work on these appss.
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