GPU utilisation factor

Message boards : Number crunching : GPU utilisation factor
Message board moderation

To post messages, you must log in.

AuthorMessage
Profile Guy
Avatar

Send message
Joined: 17 May 99
Posts: 69
Credit: 8,183,090
RAC: 0
United Kingdom
Message 1398401 - Posted: 3 Aug 2013, 19:57:41 UTC
Last modified: 3 Aug 2013, 19:58:39 UTC

Hello,
Are we gong to see a GPU utilisation factor in the stock SAH settings anytime?
Thank you -

ID: 1398401 · Report as offensive
Profile jason_gee
Volunteer developer
Volunteer tester
Avatar

Send message
Joined: 24 Nov 06
Posts: 7489
Credit: 91,093,184
RAC: 0
Australia
Message 1398408 - Posted: 3 Aug 2013, 20:26:03 UTC - in response to Message 1398401.  
Last modified: 3 Aug 2013, 20:27:35 UTC

Are you referring more to resource scheduling type scenarios ? or more toward direct control of GPU usage in the application sense ?

Not sure about the AMD GPU app side, as your listed PC seems to have, though I've certainly been looking at ideas for future more configurable/controllable nVidia Cuda running in a number of possible user scenarios.
"Living by the wisdom of computer science doesn't sound so bad after all. And unlike most advice, it's backed up by proofs." -- Algorithms to live by: The computer science of human decisions.
ID: 1398408 · Report as offensive
Profile Guy
Avatar

Send message
Joined: 17 May 99
Posts: 69
Credit: 8,183,090
RAC: 0
United Kingdom
Message 1398531 - Posted: 4 Aug 2013, 2:51:27 UTC - in response to Message 1398408.  

I expect I mean direct control of GPU usage i.e. running two or three WUs per GPU. The app_info.xml file that can produce this kiind of activity in my system is tough to re-author every time the stock sci-apps change; it would be nice to see a "How many do you want to try to run per GPU" option in the settings.
Thank you -

ID: 1398531 · Report as offensive
Profile jason_gee
Volunteer developer
Volunteer tester
Avatar

Send message
Joined: 24 Nov 06
Posts: 7489
Credit: 91,093,184
RAC: 0
Australia
Message 1398548 - Posted: 4 Aug 2013, 3:25:01 UTC - in response to Message 1398531.  

They've introduced with newer Boinc clients an app_config.xml to allow control of the number of instances on a per application basis, with/without an app_info.xml. I'm told that's a simpler way, that should work running stock or under anonymous platform, though I use older Boinc clients so will leave others that use it to explain the mechanism there.

I'm not aware of other work in the area of configurability, though for the third party (anonymous platform) app side, I've been examining ways to allow better/easier local configuration to per device level. That's quite a way off, & initially targeted for external tools, though backstage discussions about some areas have suggested parts of that effort might eventually be wanted back in the Boinc client as well.
"Living by the wisdom of computer science doesn't sound so bad after all. And unlike most advice, it's backed up by proofs." -- Algorithms to live by: The computer science of human decisions.
ID: 1398548 · Report as offensive
Profile arkayn
Volunteer tester
Avatar

Send message
Joined: 14 May 99
Posts: 4438
Credit: 55,006,323
RAC: 0
United States
Message 1398566 - Posted: 4 Aug 2013, 5:31:08 UTC

This is what mine is set to currently. It allows me to run 2 MB or 1 MB and 1 AP on each card.

<app_config>
   <app>
      <name>setiathome_v7</name>
      <gpu_versions>
          <gpu_usage>0.49</gpu_usage>
          <cpu_usage>.04</cpu_usage>
      </gpu_versions>
    </app>
	<app>
        <name>astropulse_v6</name>
		 <gpu_versions>
          <gpu_usage>0.51</gpu_usage>
          <cpu_usage>1</cpu_usage>
      </gpu_versions>
    </app>
</app_config>


It also reserves a full CPU for the AP work.

ID: 1398566 · Report as offensive
Profile Guy
Avatar

Send message
Joined: 17 May 99
Posts: 69
Credit: 8,183,090
RAC: 0
United Kingdom
Message 1398699 - Posted: 4 Aug 2013, 17:37:09 UTC - in response to Message 1398566.  

Great! So it does.
Thanks -

ID: 1398699 · Report as offensive
Profile arkayn
Volunteer tester
Avatar

Send message
Joined: 14 May 99
Posts: 4438
Credit: 55,006,323
RAC: 0
United States
Message 1398729 - Posted: 4 Aug 2013, 20:37:32 UTC - in response to Message 1398699.  

Great! So it does.
Thanks -


It looks like all your work is coming in with about an average of 90 seconds from the server and you are erroring out everything right now.

ID: 1398729 · Report as offensive
Profile Mike Special Project $75 donor
Volunteer tester
Avatar

Send message
Joined: 17 Feb 01
Posts: 34302
Credit: 79,922,639
RAC: 80
Germany
Message 1398735 - Posted: 4 Aug 2013, 20:49:03 UTC

Hows about your CPU ?
Did you reserve a core ?
Running 2 GPU`s on a dual core CPU is difficult.



With each crime and every kindness we birth our future.
ID: 1398735 · Report as offensive
Profile Guy
Avatar

Send message
Joined: 17 May 99
Posts: 69
Credit: 8,183,090
RAC: 0
United Kingdom
Message 1400201 - Posted: 7 Aug 2013, 16:24:15 UTC

Yeas, everything was erroring! I was using the 4.01 Lunatics apps with no problems until a few days ago on this system*. Followed the advice given out for similar issues, and reinstalled the 4.01 but no joy. So I'm now back on the stock apps which are 'dueling' OK.

*Windows 7 64 bit.
Opteron 185 + 2x HD6950.
185 has 1 reserved core.


ID: 1400201 · Report as offensive
Profile Wiggo
Avatar

Send message
Joined: 24 Jan 00
Posts: 35448
Credit: 261,360,520
RAC: 489
Australia
Message 1400333 - Posted: 7 Aug 2013, 20:07:03 UTC - in response to Message 1400201.  

Yeas, everything was erroring! I was using the 4.01 Lunatics apps with no problems until a few days ago on this system*. Followed the advice given out for similar issues, and reinstalled the 4.01 but no joy. So I'm now back on the stock apps which are 'dueling' OK.

*Windows 7 64 bit.
Opteron 185 + 2x HD6950.
185 has 1 reserved core.

With that setup you'd be better off not using your CPU, keep both its cores free to feed those cards.

Cheers.
ID: 1400333 · Report as offensive

Message boards : Number crunching : GPU utilisation factor


 
©2024 University of California
 
SETI@home and Astropulse are funded by grants from the National Science Foundation, NASA, and donations from SETI@home volunteers. AstroPulse is funded in part by the NSF through grant AST-0307956.