[Paraview] pvrenderserver with MPI or without MPI?

[Shigenobu Hirose]

Hi Berk,

Thank you for the information. It looks fine for my current purpose.

But, I think I haven't yet understood how pvrenderserver works in
parallel. Does it still use MPI?; for example, if I had multiple
graphics cards, say 4 cards, should I do like this?:
% mpirun -np 8 pvdataserver
% mpirun -np 4 pvrenderserver
Or does it work in other way?

Shigenobu

On Mon, Jan 19, 2009 at 23:31, Berk Geveci <berk.geveci at kitware.com> wrote:
> Hi Shigenobu,
>
> I'd recommend using simple client-server and turning off remote
> rendering from the Preferences -> Render View -> Server. This should
> give you the same result without the complication of the render
> server. Making use of multiple cores when there is only one graphics
> card is a research topic for us. In the future, there will be better
> way of doing this.
>
> -berk
>
> On Sun, Jan 18, 2009 at 10:43 PM, Shigenobu Hirose
> <shirose at jamstec.go.jp> wrote:
>> Hi,
>>
>> I've built Paraview servers on Mac OS X (10.5.6 intel x86_64) with
>> PARAVIEW_USE_MPI=ON.
>> I'm going to run the servers on a MacPro with 8 CPUs and with a single
>> graphics card.
>>
>> I understand that
>> % mpirun -np 8 pvserver
>> is meaningful for data processing since it will be done in parallel
>> using 8 CPUs. But, I think it is redundant for rendering since there
>> is only one graphics card. In fact, when I run the above command,
>> there appear 8 windows, but rendering seems to be done on only one of
>> them with other 7 windows being blank.
>>
>> So, I guess I should launch the pvdataserver with MPI but the
>> pvrenderserver without MPI like this:
>> % mpirun -np 8 pvdataserver
>> % pvrenderserver
>>
>> Is my understanding correct?
>>
>> Thank you.
>> Shigenobu
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>