Hi Paul, On Tue, Apr 27, 2010 at 5:06 PM, Paul McIntosh < [email protected]> wrote:
> Hi All, > > I am trying to get parallel GPU accelerated volume rendering happening and > I > just want to confirm my understanding below is correct... > > For GPU acceleration I will require X Server running on each node so that > ParaView can create a local OpenGL context to enable OpenGL calls to the > hardware. The OpenGL context needs to use something like NVIDIA libraries > as > it ignores anything that might have OpenGL implemented in software (e.g. > Mesa). > > Googling shows me that it is possible to create screenless X Server > configurations that use video hardware (e.g. with a NVIDIA Tesla). So in a > cluster I am assuming that this is what I need to do for each node that I > wish to participate in the parallel rendering. > > Is the above correct? Or is there a simplier way of doing it? > > This approach seems correct. You would need to configure one X screen per GPU you have. nvidia-xconfig -a --use-display-device=none After that, start the X server. Next, write a machine file which will run one instance of a paraview render on each GPU. You would need to set the DISPLAY environment variable to point to the X server and X screen corresponding to each GPU. Use this machine file with mpirun and use the ParaView client to connect to the machine on rank 0. I'm not much of a ParaView user, but I have setup parallel rendering using this method. HTH -- Shree http://www.shreekumar.in/ Cheers, > > Paul > --- > www.internetscooter.com > > _______________________________________________ > Powered by www.kitware.com > > Visit other Kitware open-source projects at > http://www.kitware.com/opensource/opensource.html > > Please keep messages on-topic and check the ParaView Wiki at: > http://paraview.org/Wiki/ParaView > > Follow this link to subscribe/unsubscribe: > http://www.paraview.org/mailman/listinfo/paraview >
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