[Paraview] catalyst with parallel rendering

[Andy Bauer]

Hi Mark,

If you want to create images from Catalyst runs you'll probably want to
build the ParaView that you're linking to with either OSMesa or EGL (and Qt
disabled). This gets around needing the X context for rendering since I
believe running with offscreen enabled is not sufficient. EGL comes with
most of the NVIDIA drivers -- see
https://blog.kitware.com/off-screen-rendering-through-the-native-platform-interface-egl/
for how to build PV with it. If you want to go the OSMesa route I'd
recommend using the ParaView superbuild (
https://gitlab.kitware.com/paraview/paraview-superbuild) to build it for
you.

Does this answer your question? I just got back from vacation and am trying
to catch up on more things than my brain can currently handle so let me
know if you have more questions.

Best,
Andy



On Mon, May 28, 2018 at 11:25 AM Mark Olesen <Mark.Olesen at esi-group.com>
wrote:

> For the mailing list, since this must probably be a FAQ (even if I seem
> to find the answer in the usual places).
>
> I would like to have paraview rendering in parallel for a simulation
> with catalyst. For simplicity, I'm fiddling about on a local
> workstation, but would like to generalize later. it should work without
> live visualization enabled, or requiring a GUI to connect.
>
> I'd presume using something like the following
>
> mpirun -np 12 pvserver --server-port=123456 --force-offscreen-rendering
>
> would be setup a parallel rendering session as usual. However, after
> scouring docs there doesn't seem to be an obvious way to connect this
> within catalyst (without a GUI).
>
> The only access point that I seem to find is to define an MPI
> communicator for initializing catalyst after some how (some hand-waving
> here) querying a pvserver connection for its host topology and defining
> an appropriate communicator.
>
> Cheers,
>
> /mark
> _______________________________________________
> 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
>
> Search the list archives at: http://markmail.org/search/?q=ParaView
>
> Follow this link to subscribe/unsubscribe:
> https://public.kitware.com/mailman/listinfo/paraview
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://public.kitware.com/pipermail/paraview/attachments/20180601/dcff1481/attachment.html>