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Richard Haselgrove:
I wonder if it could be specific to notebooks?

09-Aug-2011 16:07:08 [---] Starting BOINC client version 6.12.33 for windows_x86_64
09-Aug-2011 16:07:08 [---] OS: Microsoft Windows 7: Home Premium x64 Edition, Service Pack 1, (06.01.7601.00)
09-Aug-2011 16:07:08 [---] NVIDIA GPU 0: GeForce GT 420M (driver version unknown, CUDA version 4000, compute capability 2.1, 994MB, 128 GFLOPS peak)

_heinz:
Hi Jason,
nvAPItest shows the correct driver version as you can see.
267.21 is the same as gpuz0.5.4 show.
Your program does it right.  :)

_heinz:
My ION shows the driver correct
11.08.2011 10:16:27      Starting BOINC client version 6.10.60 for windows_intelx86
11.08.2011 10:16:28      NVIDIA GPU 0: ION (driver version 27032, CUDA version 4000, compute capability 1.1, 242MB, 35 GFLOPS peak)

_heinz:
Hi Jason,
I posted it some months ago to Ken http://www.primegrid.com/forum_thread.php?id=3144&nowrap=true#33133
The Querying for a CUDA Device is so different in the OPTIMUS Technology,
 see http://developer.download.nvidia.com/compute/cuda/3_2_prod/toolkit/docs/CUDA_Developer_Guide_for_Optimus_Platforms.pdf
 page 3
 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 I think it would be better the app choose the GPU, than jiggle with profiles.
 my two cents.
 
heinz
 

Jason G:

--- Quote from: Richard Haselgrove on 11 Aug 2011, 03:48:20 am ---I wonder if it could be specific to notebooks?
--- End quote ---

If mine works, then it's specific to Boinc  :D (i.e. they aren't using the same mechanism, I
I'll have a proper look what the use a bit later. strange they would link with nvApi and not use that. )

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