Forum > GPU crunching

AK V8 + CUDA MB team work mod

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k6xt:
Raistmer says:
No-no-no, for AMD will have_AMD in name. V8 and V8a differs in will it kill VLAR or will it process VLAR. Due current Berkeley's network troubles I would recommend V8.
(and AMD can't support SSSE3 btw, only SSE3)

k6xt:
It appears I have things running but can't tell if the GPU is processing. Task Manager shows five instances of AK_v8b_win_SSSE3x_GPU_CPU_team, and one instance of
MB_6.08_mod_CPU_team_CUDA. All 4 processors are at 100%

I have ncpu=5 in cc_config which shows up in BOINC messages and also Boinc shows 5 running tasks.

Have I got it right?

Thanks
Art

Raistmer:

--- Quote from: k6xt on 03 Feb 2009, 11:49:00 am ---V8 it is, thank you. Especially since I don't know what VLAR is. :-)

--- End quote ---

Sorry, problems with acronims was pointed out on SETI main already, maybe it's worth to have some dictionary thread indeed. VLAR=VeryLowAngleRange - in short, very small value of one of task parameters. It depends from how big angle motion of telescope was at recording this particular WU and will be different for different WUs.

And about your installation, if MB_6.08_mod_CPU_team_CUDA takes few % of CPU time to time, 4 copies of AK_v8b_win_SSSE3x_GPU_CPU_team take ~25% of CPU each and 5th copy of AK_v8b_win_SSSE3x_GPU_CPU_team takes no CPU - yes, it works as should. You can check it via  Windows Task Manager (Ctr-Shift-Esc or Ctr-Alt-Del )

k6xt:
My WinTask Manager looks like you say it should. MB_*_CUDA.exe takes 1% occasionally, there are four AK tasks taking 25% each.

But I have two AK tasks running at zero % not one. I tried "end process" but #6 keeps coming back. Well I guess all is OK. Boinc tasks shows 5 tasks running.

The Q6600 is overclocked at 3.1GHz. I can squeeze 3.2GHz out of it but around that speed Prime95 will occasionally stop on an error. Not worth the trouble or lost WU I think. I set CPU fan target in BIOS to 60 deg C which the system maintains easily.

Now to see if host average rises!

Thanks
Art

Grey Shadow:
Hi Raistmer,

Would you mind updating your mod to switch between CPU/GPU for VLAR units (as you mentioned on the first page - if task is VLAR - stay with CPU, else - try pass task to GPU)? VLAR Autokill works perfectly, at last I have stable SETI setup using GPU and not requiring constant attention, but sometimes it is very pity to see that 20 WUs downloaded between constant "out of work" messages go to trash bin...

Thanks in advance :)

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