Forum > GPU crunching

AK V8 + CUDA MB team work mod

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Yellow_Horror:
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.

Raistmer:

--- 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.

Richard Haselgrove:
Since we're playing "Mine's bigger than yours", here's my Q9300:



Started with no CUDA, then a couple of weeks CUDA Beta testing (including those 70 consecutive VLARs), then switched CUDA to Main.

Vager:
I think I'm seeing some of the symptoms you're describing Raistmer. I tried your moded app in your previous post, and I thought that the problem was solved as I don't think I made it past 24 hours without my GPU going idle. I applied the app last night and this morning my GPU temp was high telling me that it was being used. When I got home today I noticed that the temp was back to normal indicating that nothing was being used.
 So after reading your post about Vista (I'm using the 64bit version) which app do I change the affinty for? I'm not sure which one is used soley for the GPU. I have 4 processes running. (I only have a dual core)

AK_v8b_win_SSSE3x_GPU_CPU_team.exe is running at 3 instances 2 of them running around 22% and the 3rd one running at 00 CPU usage. The MB_6.08_mod_CPU_team_CUDA.exe file is running at 50% CPU. Which process would I change as all for of them have both CPU's checked off for the affinity.

Thanks
Vager

SoNic:

--- 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).

--- End quote ---

OK, I have read almost all the thread, I have DL the SSE3 package (I have a Core2Duo) and this version of CUDA app. Mt task manager now shows one AK_V8 app at 50%, one AK_V8 at 00% and one MB_9.08 CUDA at 2%.
In Boinc manager I have 2 working units, one normal and another one that doesn't increase the CPU time field (but it is working).
Is this normal? I did make an config file with 3 CPU's and placed it on the work folder.
The CUDA app will run at 50% just for a while at the begining...
PC is very responsive.

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