Linux & multiple GPU's - Numbercrunching very lov comparred to other projects

Message boards : Number crunching : Linux & multiple GPU's - Numbercrunching very lov comparred to other projects
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Message 1892340 - Posted: 29 Sep 2017, 11:00:12 UTC


Anyone who know why my SETI crunching numbers are low comparred to other projects?

Yes, I can just change the percentage of the priority, but even that may not solve the issue!? The percentage for my 3 projects are 33.3% each. Einstein@ and Asteroid@ are running like crazy, while my SETI jobs are moving forward a job or two a week.

I noticed that when running asteroid jobs, GPU's temperature which I log accordingly, seems a great deal higher than e.g. SETI temp's. And I seem to recall a conversation I had with someone inhere last year. Anyway, this only confirms my issue but doesn't solve it.

I would be gratefull if someone had a fix...

Running multiple GPU's and a single CPU on several Linux systems. Distro is Ubuntu 14.04.x

These are the 2 types of systems running:

BOINCversion: 7.2.42
Linux3.16.0-30-generic, Linux3.13.0-32-generic
[4] NVIDIA GeForce GTX 750 (2047MB) OpenCL: 1.1
GenuineIntelIntel(R) Core(TM) i5-4670K CPU @ 3.40GHz [Family 6 Model 60 Stepping 3](4 processors)

BOINCversion: 7.2.42
[4] NVIDIA GeForce GT 640 (1023MB) OpenCL: 1.1
GenuineIntelIntel(R) Core(TM) i5-4690K CPU @ 3.50GHz [Family 6 Model 60 Stepping 3](4 processors)

Kind Regards
Dan Hansen
Project Headless CLI Linux Multiple GPU Boinc Servers
Ubuntu Server 14.04.1 64bit
Kernel 3.13.0-32-generic
CPU's i5-4690K
GPU's GT640/GTX750TI
Nvidia v.340.29
BOINC v.7.2.42

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Profile MarkJ
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Message 1892345 - Posted: 29 Sep 2017, 11:41:56 UTC
Last modified: 29 Sep 2017, 11:45:10 UTC

You didn’t say what app you are running. I would guess it’s the project supplied ones. If so you might want to run the cuda80 one, but you would need an up to date Nvidia driver installed (to get CUDA 8 support). There is a rather long thread about running it here
BOINC blog
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Profile Brent Norman
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Message 1892353 - Posted: 29 Sep 2017, 12:34:41 UTC - in response to Message 1892340.  

Yes CUDA80 would definitely improve your runtimes, my 750Ti's don't go over 13 minutes per task, at the most.

But I see that your computers are not processing the tasks you have on hand, as you said it has to do with Resource Shares between projects. It could be your computer is over-committed with other projects, thus it is trying to run those tasks off first. Einstein has been said to be bad for that - not playing nice with others.
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rob smith
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Message 1892369 - Posted: 29 Sep 2017, 13:47:06 UTC

Regardless of which seti application you are using the short deadlines of your other projects will tend to mean seti willinitially lag behind. Over time (weeks/months) things will even out. Just be patient.
Bob Smith
Member of Seti PIPPS (Pluto is a Planet Protest Society)
Somewhere in the (un)known Universe?
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Message boards : Number crunching : Linux & multiple GPU's - Numbercrunching very lov comparred to other projects

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