[Paraview] Does running Catalyst require osmesa?

[Chuck Atkins]

> So if someone is running a Catalyst
> instrumented code that is compiled on
> a supercomputer with thousands of
> back-end nodes, can they link to a
> ParaView build or a Catalyst Edition
> and expect the code to work?

Yes

> Do back-end nodes have X servers
> available to them?

It depends.  If the Catalyst or ParaView build your linking against is
configured to use libGL, then yes.  If, instead, it's configured to use
libOSMesa or EGL, then no.

- Chuck
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