[Paraview] client/server display problem

[Berk Geveci]

So you are getting the same error when running pvserver and pvclient? Do me
a favor, make sure that there is no DISPLAY enviromnent variable set when
running in ParaView. You may have to unset it in .XXrc to override what ssh
sets. I want to make sure that the reason the server is crashing is due to X
not due to something else. Another way of finding out is to attach to one of
the pvserver processes with a debugger. Also, does this happen when you run
a 1 node server?

-Berk


On 5/16/06, Renato N. Elias <rnelias at nacad.ufrj.br> wrote:
>
>  Berk: Well, mostly because this may not scale well. Polygonal data
> generated by 10 nodes might be too big to be handled by a single node. If
> you client can handle it, no problem
>
> Renato: I see what you mean. My problem is that, unfortunately, we don't
> have render clusters here. Thus, we must try to work with the Altix as it
> was only a parallel data server connected to a Windows XP client machine
> performing all rendering work with its NVidia Quadro FX 4400 video card.
>
> Berk: there is not pure data server in paraview
>
> Renato: Ok. It's clear now. I guess I got confused after seeing what PV
> compilation produces. It builds different binaries (pvclient,
> pvrenderserver, pvserver and pvdataserver). Firstly I tried to connect the
> pvclient (on the Windows machine) with the pvserver (on the Altix system)
> but I got that error message (X connection to localhost:10.0 broken
> (explicit kill or server shutdown)). After that, I tried to connect pvclient
> with pvDATAserver and the problem persisted. I thought it strange since I
> was just repeating with PV 2.4.3 the same procedure I used to do with PV
> 2.2.1 (which has been running nicely in parallel, including with Ensight
> files which don't work fine with PV 2.4.3).
>
> Thanks Berk for the explanations
>
> Renato N. Elias
> ===============================================
> PhD student - http://www.nacad.ufrj.br/~rnelias<http://www.nacad.ufrj.br/%7Ernelias>
> High Performance Computing Center
> Federal University of Rio de Janeiro
> Rio de Janeiro, Brazil
> +55(21) 2562-8080
>
>  ------------------------------
> *De:* Berk Geveci [mailto:berk.geveci at gmail.com]
> *Enviada em:* terça-feira, 16 de maio de 2006 16:07
> *Para:* Renato N. Elias
> *Cc:* Wylie, Brian; paraview at paraview.org
> *Assunto:* Re: [Paraview] client/server display problem
>
>
>
> On 5/16/06, Renato N. Elias <rnelias at nacad.ufrj.br> wrote:
> >
> >
> > Sorry, but I'm still in doubt...
> >
> > Maybe my doubt is due the way I'm running the client/server mode. I
> > should
> > emphasize that I'm running in a client/DATA server mode using a SGI
> > Altix
> > which doesn't have any rendering capability. Thus, here goes my
> > questions...
> >
> > BRIAN: 1) Set up their server nodes so that they can open X windows
> > (Sandia
> > has done this on like 10 different clusters, it's not that hard, if you
> > need
> > instructions please email me).
> >
> > RENATO: Why? If I'm running in a client/data server scheme my data
> > server
> > only need to load and dispatch my data to the client which should launch
> > the
> > PV GUI. I can't see why is it necessary to open X windows in this case.
>
>
>
> Well, mostly because this may not scale well. Polygonal data generated by
> 10 nodes might be too big to be handled by a single node. If you client can
> handle it, no problem. There is not client/data server scheme. You either
> have client/data server/render server or client/server modes. If you are
> running in client/server modes, the server is capable of both processing and
> rendering. If you don't want the server to render, disable compositing. At
> that point, there is no need for opengl or X display on the server.
>
> BRIAN: 2) Compile the server with Mesa (note: the client should never be
> > compiled with Mesa)
> >
> > RENATO: The question remains. Is it really necessary to compile PV with
> > Mesa
> > support in a system without rendering capability?
>
>
>
> It is not necessary. It is optional. If you are not going to render
> anything on the server, compile with whatever opengl library you want.
> Unfortunately, there is not pure data server in paraview. All servers have
> to be linked against some opengl library, even if it is not used.
>
>
>
>
>
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