[Paraview] Tiled display with multi-gpu.

[John Patchett]

Hi,
I Think I did what you are asking  some time ago and used a pvx file  
which I handed the pvserver  as a command line option,
I can't recall all the details but here is one of the files, it was  
used when launching 2 pvservers via mpi on the same machine with 2  
graphics cards.   :

$cat myconfig.pvx
<?xml version="1.0" ?>
<pvx>
   <Process Type="client">
   </Process>
   <Process Type="server">
     <Machine Name="hostname1"
              Environment="DISPLAY=:1"/>
     <Machine Name="hostname1"
              Environment="DISPLAY=:0"/>
   </Process>
</pvx>

I just found there is some more regarding the pvx file at:
http://www.vtk.org/Wiki/ParaView:FAQ

-John


On Apr 20, 2009, at 1:18 PM, Omkaranathan wrote:

>
> Thanks Ken,
> But what I was searching for was the configuration options, as I  
> couldn't find any information on how to launch the server in case of  
> multiple displays.
> Can I specify display numbers in machinefiles?
> It would be great if I can get any pointers.
>
> -Om
>
> Moreland, Kenneth wrote:
>> That’s basically what Utkarsh meant by needing to set up the  
>> environment correctly. Typically the GPU used is determined by the  
>> DISPLAY environment variable. “:0” is typically the first GPU and “: 
>> 1” is typically the second GPU. You need to launch pvserver such  
>> that node 0 gets :0 for the DISPLAY env variable (or –display flag)  
>> and node 1 gets :1.
>>
>> -Ken
>>
>>
>> On 4/20/09 8:39 AM, "Omkaranathan" <omkaranathan at darshan3d.com>  
>> wrote:
>>
>>    Hi Utkarsh,
>>
>>    Thanks for the response.
>>    The suggested command line creates two seperate processes and
>>    devides the data properly, but I'm getting both the tiles in the
>>    same display(connected to first GPU).
>>
>>    -Om
>>
>>    Utkarsh Ayachit wrote:
>>
>>
>>        Yes, just run pvserver as follows:
>>
>>        mpirun -np 2 pvserver -tdx=2
>>
>>        Of course, you'll have to build your own MPI enabled  
>> ParaView (you
>>        cannot use the binaries provided by on www.paraview.org
>>        <http://www.paraview.org> ). You'll have
>>        to ensure that the environment is set up correctly so that  
>> each
>>        pvserver processes gets the right display etc.
>>
>>        Utkarsh
>>
>>        On Mon, Apr 20, 2009 at 8:08 AM, Omkaranathan
>>        <omkaranathan at darshan3d.com>
>>        <mailto:omkaranathan at darshan3d.com> wrote:
>>
>>
>>
>>            Hi,
>>
>>            Is it possible to achieve tiled display using a single
>>            dual-gpu machine
>>            which can drive 4 displays? I have read that the number of
>>            servers should
>>            atleast be equal to number of tiles.
>>            Can paraview be configued to have atleast a 2x1 tiled
>>            display with 2 GPUs?
>>
>>            Thanks
>>            Omkaranathan
>>
>>            _______________________________________________
>>            Powered by www.kitware.com <http://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
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> **** Kenneth Moreland
>> *** Sandia National Laboratories
>> ***********
>> *** *** *** email: kmorel at sandia.gov
>> ** *** ** phone: (505) 844-8919
>> *** web: http://www.cs.unm.edu/~kmorel <http://www.cs.unm.edu/%7Ekmorel 
>> >
>>
>
> _______________________________________________
> 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