[Paraview] Remote rendering through reverse SSH breaks with a GLX error

[Utkarsh Ayachit]

Robert,

A few suggestions:

1. let's see what GL you're getting. If you run the following, what it
the output?
   ....
   pgc104% DISPLAY=:0.0 glxinfo

2. What GPU do you have and which drivers? If it's NVidia with new
enough drivers that support EGL, an EGL-enabled build may be a good
way to circumvent x-server issues.

Utkarsh

On Thu, Sep 28, 2017 at 11:43 AM, Robert Sawko <robertsawko at gmail.com> wrote:
> Dear Paraviewers,
>
> I am trying to run Paraview in a client-server mode on a remote compute node
> using a reverse SSH through the login node.
>
> I have successfully worked out my port forwarding skulduggery and was able to
> connect to a host which does NOT run X server. Inside my local client. I do get
> an error
>
>         "Display is not accessible on the server side. Remote rendering
>         will be disabled"
>
> This is to be expected on the node without X.
>
> On the node with X running my client gets connected but then breaks with:
>
>         Waiting for client...
>         Connection URL: cs://pgc104:22226
>         Accepting connection(s): pgc104:22226
>         Client connected.
>         Xlib:  extension "GLX" missing on display ":0.0".
>         Xlib:  extension "GLX" missing on display ":0.0".
>         ...
>         (core dumped)
>
>
> Finally on the login node client-server works fine and rendering (I guess)
> is done on the remote side as I don't get any errors. We have made sure that
> xorg.conf on login and X-enabled compute node are the same.
>
>
> My connection procedure:
>
> local% ssh -L 22226:localhost:22226 login_node
> login% bsub -R "select[hname=pgc104]" -Is /bin/bash
> pgc104% ssh -N -R 22226:localhost:22226 login &
> pgc104% DISPLAY=:0.0 pvserver -sp=22226 --use-offscreen-rendering
> local% paraview->connect to localhost:22226
>
> Same thing works on pgc304 which doesn't run X. Please let us know if you have
> any suggestions.
>
> Best wishes,
> Robert
> --
> Ironically, it was Christopher Columbus who was wrong
> http://en.wikipedia.org/wiki/Myth_of_the_Flat_Earth
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