[Fwd: [Paraview] Run Paraview sort-last on several graphics devices in the same machine]

[Qinghuai Gao]

Ken:

I come back to this problem again.  I am trying to set the DISPLAY in
the code at MPI_Init.  However, I am not sure this really does the work
as expected because Paraview has a very complicated architecture.
Precisely, I add a paragraph after the MPI_Init in
VTK/Parallel/vtkMPIController.cxx.  Please confirm me this is the right
place to add, or point me where is the right place if this is not.

I can verify that the data is processed by two process by adding a
"Process Id Scalar" filter.

However, how can I verify the render task is assigned to two graphic
cards.  Any thoughts?

Thanks,

Qinghuai

> I have never used a machine with many graphics devices, but I can tell
> you that to get parallel rendering to work you will need to run ParaView
> in some kind of MPI mode.  The actual mode you use (local,
> client/server, client/render-server/data-server) depends on your setup,
> but they are all capable of parallel rendering.
> 
> Getting each process in your MPI job to use a different graphics device
> may be more tricky.  Offhand, I can't think of an easy way to do it.
> Perhaps you could have mpirun (or whatever launches your MPI jobs) call
> a script that somehow determines the process' rank, sets the DISPLAY
> accordingly, and then calls the real ParaView implementation.
> 
> -Ken 
> 
> 
>>-----Original Message-----
>>From: paraview-bounces+kmorel=sandia.gov at paraview.org 
>>[mailto:paraview-bounces+kmorel=sandia.gov at paraview.org] On 
>>Behalf Of Qinghuai Gao
>>Sent: Tuesday, September 20, 2005 11:59 AM
>>To: paraview at paraview.org
>>Subject: [Fwd: [Paraview] Run Paraview sort-last on several 
>>graphics devices in the same machine]
>>
>>I asked this question last week but got no reply yet.  Wonder 
>>anyone try this kind configuration to run Paraview with many 
>>graphics devices in a single machine.  If so, please shine 
>>some light.  Thanks in advance,
>>
>>Qinghuai
>>
> 
>