[Paraview] Multiple GPUs per node

[Burlen Loring]

btw, here is an batch script 
<https://github.com/burlen/pvserver-configs/blob/master/servers/nautilus/3.10.0-x/start_pvserver-x.qsub> 
starting ParaView with pvservers assigned to GPU's round robin, from the 
SGI UV 1000 with 8 GPU. The other tricky aspect of running PV on 
multiple GPU is configuring X11. Here is the xorg.conf 
<https://github.com/burlen/pvserver-configs/blob/master/servers/nautilus/3.10.0-x/xorg.conf> 
on this system, each card has it's own device, screen, and layout.

Hope it helps.
Burlen

On 05/10/2015 09:30 PM, srikanth.nagella at stfc.ac.uk wrote:
> Hi John,
>
> You need to run 4 X servers, one X server per GPU card.
> http://www.paraview.org/Wiki/Setting_up_a_ParaView_Server#Multiple_GPUs_Per_Nodehttp://www.paraview.org/Wiki/Setting_up_a_ParaView_Server#Multiple_GPUs_Per_Node
>
> Sri
> ________________________________
> From: ParaView [paraview-bounces at paraview.org] on behalf of John Moore [johnpmooreiv at gmail.com]
> Sent: 08 May 2015 17:03
> To: paraview at paraview.org
> Subject: [Paraview] Multiple GPUs per node
>
> I am trying to take advantage of all four GPUs on a 32 node Amazon ec2 cluster. However, I seem to only be able to utilize the first GPU.
>
> I run pvserver as follows:
>
> 1)  Manually start an X display with the command :   sudo X :0 &
> 2)  run pvserver with the following command (using OpenMPI's mpirun):
>       mpirun -np 16 pvserver -display :0.0 : -np 16 pvserver -display :0.1
>
> When I try to connect the client, I get an error saying that the client could not connect to the remote display. Everything works fine using display :0.0 only.
>
> Does anyone know what I might be doing wrong here? Thank you for your time!
>
> John
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