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World Community Grid Forums
Category: Support
Forum: BOINC Agent Support
Thread: CUDA device help |
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Thread Status: Active Total posts in this thread: 30
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BertrandRussel
Cruncher Joined: Nov 24, 2006 Post Count: 30 Status: Offline Project Badges: 
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Hi,
I recently upgraded the graphics card on one of my machines with a new NVIDIA 8400GS - it's a CUDA capable device. BOINC does recognize the feature on start by stating: "CUDA device: GeForce8400GS (driver version 18250 CUDA version 1.1, 512MB, est. 4 GFLOPS)." OK so far. I would be pleased to know how to benefit from this capability. As for now I don't see any improved calculation performance on this PC. Thank you for any help/advice. |
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Flavio Bessa
Advanced Cruncher Brazil Joined: Aug 3, 2007 Post Count: 83 Status: Offline Project Badges: 
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Hello Bertrand,
You have to attach your BOINC to a project that supports CUDA devices. WCG, as of now, does not. |
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BertrandRussel
Cruncher Joined: Nov 24, 2006 Post Count: 30 Status: Offline Project Badges:
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Mille grazie, Flavio.
Is there a roadmap for CUDA integration in the WCG? |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Hello BertrandRussel,
----------------------------------------WCG does not have any projects that use CUDA. GPUGRID in Barcelona does ( http://www.gpugrid.net/ ). So does SETI and Folding@Home. Look over the forum messages on GPUGRID. You may recognize some of the names. Lawrence Added: One WCG project is looking into coding a CUDA version. This is uncertain until they get it debugged. It is not trivial. So there is no road map. [Edit 1 times, last edit by Former Member at Apr 15, 2009 3:37:32 PM] |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
If we currently participate in any projects available, this one should be downloaded and started automatically? Also, assuming a quad core already running 4 tasks in parallel, will we now be working on 5 (ie, will the BOINC client recognize this situation and keep the CPU completely utilized)?
----------------------------------------[Edit 1 times, last edit by Former Member at Apr 15, 2009 7:39:29 PM] |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
CUDA tasks cause major problems for those running them, so it is not enabled by default.
GPU tasks also use CPU resources. |
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Dataman
Ace Cruncher Joined: Nov 16, 2004 Post Count: 4865 Status: Offline Project Badges: 
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If we currently participate in any projects available, this one should be downloaded and started automatically? Also, assuming a quad core already running 4 tasks in parallel, will we now be working on 5 (ie, will the BOINC client recognize this situation and keep the CPU completely utilized)? 6.6.20 is the current version and it will run 4+1 with GPU using ~0.2% of one core. Cheers  |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
The amount of CPU power used for the GPU task is entirely dependent on the application.
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mikaok
Senior Cruncher Finland Joined: Aug 8, 2006 Post Count: 489 Status: Offline Project Badges: 
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6.6.20 is the current version and it will run 4+1 with GPU using ~0.2% of one core. If I have understood this correctly, the use of CPU cores in CUDA work units depend more on how well those work units are coded, than the client itselft. Gpugrid got their wu's running smoothly two or three months ago, so I would expect much higher CPU load when new CUDA project arrives to WCG. If or when they arrive 
to infinity and beyond
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Dataman
Ace Cruncher Joined: Nov 16, 2004 Post Count: 4865 Status: Offline Project Badges:
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The amount of CPU power used for the GPU task is entirely dependent on the application. True and on the BOINC release. I'm only at GPUGrid and it is constant ... that is if you can believe the number.  |
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