[Paraview] client/server display problem - on and on and on...

Wed May 17 13:05:27 EDT 2006

I agree (and I agree we beat this horse to death :-) )

On 5/16/06, Wylie, Brian <bnwylie at sandia.gov> wrote:
>
>  Renato,
>
> In your case (1 client) pvserver IS a data server. In fact it the best of
> both worlds, it's a data server until the polygonal data gets to big (passes
> the 10MB threshold) and then it becomes a render server, and you can
> dynamically change that threshold....or if for some bizarre reason you never
> want it to become a render server (not sure why.. but whatever) you can just
> turn compositing off and it will always be a data server.
>
> In general the point I'm trying to make is that for 99% of the folks out
> there, splitting the server into a data server and a render server is a more
> complex, less effective solution, then just running pvserver and pvclient.
> If you are running pvdataserver and pvrenderserver you should have a REALLY
> good reason for doing so.
>
> Okay have we beat this horse to death yet?  :)
>
> *Brian Wylie - Org 9227*
> *Sandia National Laboratories*
> *MS 0822 - Building 880/A1-J*
> *(505)844-2238 FAX(505)845-0833                       *
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>                                     Unleash the Beast
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>
>  ------------------------------
> *From:* paraview-bounces+bnwylie=sandia.gov at paraview.org [mailto:
> paraview-bounces+bnwylie=sandia.gov at paraview.org] *On Behalf Of *Renato N.
> Elias
> *Sent:* Tuesday, May 16, 2006 2:19 PM
> *To:* 'Berk Geveci'
> *Cc:* paraview at paraview.org
> *Subject:* [Paraview] client/server display problem - Problem solved!
>
>  problem solved :-)
>
> my problem was solved after seeing the last posts. It was exactly due the
> DISPLAY enviroment variable which was set (wrongly) to localhost:10.
>
> You know, as it was not necessary with PV 2.2.1 I got surprised after
> getting that error message in PV 2.4.3
>
> Thanks a lot folks
>
> obs.: Regarding the data server mode, for me, it is the most useful mode
> since I don't work with huge datasets and my client can perform all
> rendering work without having to download several pieces of files that were
> processed in parallel on the machine without rendering capability. I have a
> bunch of files on the processing machine that don't need to be rebuilt on
> the client's machine - for me, it's wonderful.
>
> 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 16:57
> *Para:* Renato N. Elias
> *Cc:* paraview at paraview.org
> *Assunto:* Re: [Paraview] client/server display problem
>
> 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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