[Paraview] Off topic : Multiple Graphics cards (display:0 display:1) on windows

[Moreland, Kenneth]

As you have guessed, we have run pvserver on nodes with quad cores and dual
GPUs under Linux and got it working fine.  I don't think many people use
windows boxes for pvserver nodes (and I would personally discourage it in
general), so you might be on your own here.  Is it possible to have one
process create a window that spans the display of both graphics cards and
have the rest render offscreen?

I don't see the WGL_NV_gpu_affinity extension in the OpenGL extensions
registry, so it will probably be a while before it becomes available in
vtkgl/vtkOpenGLExtensionManager.  That's another stumbling block.

Sorry I don't have anything more constructive.

-Ken


On 9/26/08 8:10 AM, "John Biddiscombe" <biddisco at cscs.ch> wrote:

> On linux, an X server will provide display:0, display:1 for two graphics
> cards on a single node. This works fine.
>
> Can the same thing be done on windows in a reasonably straightforward
> manner?
>
> I'd like to know if it's possible to have a dual/quad cpu machine with
> dual graphics cards and use 2 instances of pvserver as I would do under
> linux.
>
> Google tells me that this extension WGL_NV_gpu_affinity exists, but I
> would expect we'd need to muck about inside vtkWin32OpenGlRenderWindow
> and/or related classes to make this work.
>
> Has anyone any experience of this or similar technologies that would
> make the job easy/possible.
>
> thanks
>
> JB
>
> --
> John Biddiscombe,                            email:biddisco @ cscs.ch
> http://www.cscs.ch/
> CSCS, Swiss National Supercomputing Centre  | Tel:  +41 (91) 610.82.07
> Via Cantonale, 6928 Manno, Switzerland      | Fax:  +41 (91) 610.82.82
>
>
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   ****      Kenneth Moreland
    ***      Sandia National Laboratories
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*** *** ***  email: kmorel at sandia.gov
**  ***  **  phone: (505) 844-8919
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