NVIDIA 9800GX2

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John

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Message 24515 - Posted: 24 Apr 2009, 12:17:20 UTC

Just installed the GX2 ( 2 GP's ) but Boinc/Seti is only using 1 of the Graphic Processors.

Any thoughts ?
** John (Low IFR ) Jenkins **
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Profile Jord
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Message 24517 - Posted: 24 Apr 2009, 12:19:12 UTC - in response to Message 24515.  

If with BOINC 6.6.24, then return to the recommended 6.6.20
6.6.24 is a development version which will have bugs and is testing the new CUDA detection logic.
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John

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Message 24518 - Posted: 24 Apr 2009, 12:22:44 UTC - in response to Message 24517.  

I'm on 6.6.20
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Profile Jord
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Message 24519 - Posted: 24 Apr 2009, 12:29:24 UTC - in response to Message 24518.  
Last modified: 24 Apr 2009, 12:31:03 UTC

In that case, has BOINC detected both GPUs? Do you have work for both GPUs? Or do you only have one CUDA task (application 6.08)? Seti does not have separate feeders for CPUs and GPUs, so it really depends on what is at the top of the stack when you request work, what you get. It can happen that the CUDA stack is temporarily empty.

It also depends on how much work you ask for.

And it's better to ask project specific problems in the project forums (Seti CUDA forum), as long as BOINC is telling you that it has detected two GPUs, it isn't BOINC's problem you don't get work for all hardware.
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Richard Haselgrove
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Message 24522 - Posted: 24 Apr 2009, 13:19:22 UTC

Does (could) the GX2 operate in SLI mode in the driver? If so, disable SLI for SETI use.
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Message boards : Questions and problems : NVIDIA 9800GX2

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