Forum > GPU crunching
AK V8 + CUDA MB team work mod
chelski:
--- Quote from: Raistmer on 05 Feb 2009, 04:24:27 pm ---
--- Quote from: Yellow_Horror on 05 Feb 2009, 03:30:00 pm ---I notice some "wrong" behaviour: if a task goes to urgent state and the client starts it "pushing out" the current CUDA task, the new task don't transit to CUDA but stays on the CPU, so there are 3 tasks on my 2-core CPU and the GPU is idle until one of the tasks is finished.
--- End quote ---
Look 1-2 pages before for update that cures this situation.
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Have been running the new affinity worker with the "Team" package. Worked wonderfully and cured the "transition" error previously when new CUDA task gets stuck at 0:00:01. Also noticed work transitions seamlessly from GPU to CPU a(When the CPU finishes a unit it tend to take over the ongoing CUDA WU. Kind of surprised me at first until I realised that was how my CPU tasks seems to run faster. CUDA worker then starts a new WU)
Thanks again Raistmer for all the effort in helping us run the various CUDA clients without having to pull all our hair off :D I would say it looks like the latest Team package with the new worker it is stable and fast enough to consider making it to the main lunatics optimised client page!
k6xt:
--- Quote from: Raistmer on 05 Feb 2009, 10:50:51 am ---Agreed :)
Well, attached app little more "smart" in this sense and will leave worker thread on single (first) core. It could give some performance degradation indeed in general case (it can't fill idle window of another core) but it really helped in my situation. And achieved GPU temp is highest (the same was when no non-BOINC app runs).
It's can't be considered as upgrade cause it will help in some cases (when CUDA app appers freezing w/o reason) and can decrease performance (slightly if will do it) in other cases.
ADDON:
And some suggestion: If you experience some delays (PC behave sluggish) when running CUDA app and browsing Inet, playing game or watching video on multicore system, try exclude first CPU (By setting affinity for process in task manager) for non-BOINC app that experience delays (i.e. browser, game, media player). You could get better experience that way. Don't forget to upgrade to attached build of course in this case.
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The new CUDA app attached to the above Raismer post has fixed my sluggish behavior problem. While I can still see the effects of maximum GPU work load the GUI is usable for other things now. All 4 cores are active at 25% each, the CUDA application shows the occasional 1% CPU usage, GPU temperature indicates full load, all cores are at 100%, and I can use the GUI.
One effect I will turn off is the Nvidia window-transparency-while-dragging feature. This is slow to activate when the GPU is at 100%.
I note there are now seven AK_V8b* instances plus the CUDA app running. Seven seems like a lot. Boinc Tasks shows five running, two "waiting to run". I assume one of the five running is the CUDA app.
Very satisfied user! :-))
ofp1:
Hi,
Can anyone post detaliled instructions on how to optimize a system with CUDA.
I have a Intel Quad Core 9500 4 GB Ram and a Nvidia evga GTX 260 Graphics Card on Windows Vista Ultimate 32 bits optimized only with Win32_AK_AP_SSE41
Thanks
Archangel999:
Raistmer thanks for all you have done i have use your app all the time from the start with gpu and all working fine. Thank's for your great support !!!
PS :i will post the results but i'm waiting the new watercooling kit for my system and push it to te limit now my Q6600 is OC to 3.4Ghz i think i will reach 3.8 with the watercooling will see :)
Best Regard's
D.Draganov
k6xt:
--- Quote from: Archangel999 on 06 Feb 2009, 05:33:37 pm ---Raistmer thanks for all you have done i have use your app all the time from the start with gpu and all working fine. Thank's for your great support !!!
PS :i will post the results but i'm waiting the new watercooling kit for my system and push it to te limit now my Q6600 is OC to 3.4Ghz i think i will reach 3.8 with the watercooling will see :)
Best Regard's
D.Draganov
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Mr. Dragonov what mobo are you using? My MSI P35 Neo Combo/Q6600 starts errors at 3.2GHz with memory not overclocked.
I second your thanks to Raistmer. Great software.
Thanks
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