[Paraview] mpirun pvserver: bad X server connection.

[Alex Decastro]

Thank you for the suggestion. I "setenv DISPLAY :0" in the .cshrc file.

Now, pvserver works when I am logged onto the console on both machines.

 

Is there a way to get pvserver to work without logging onto the console
for each machine?

 

Specifically, is there a way to:

 

1. Compile Paraview so that pvserver does not have any X server
dependency?

     I compiled Paraview with off-screen Mesa.

 

OR

 

2. Configure X server to allow windows to be opened by folks not on the
console?

     Security restrictions on our systems prevent me from using "xhost
+".

 

________________________________

From: Berk Geveci [mailto:berk.geveci at gmail.com] 
Sent: Tuesday, December 20, 2005 6:43 AM
To: Alex Decastro
Cc: paraview at paraview.org
Subject: Re: [Paraview] mpirun pvserver: bad X server connection.

 

You probably have to set DISPLAY to :0 in your .XXXrc (.bashrc, .cshrc,
.kshrc, .zshenv) so that it is set during a non-interactive remote
session. In the next version of ParaView (2.6), it will be possible to
set the display in a configuration file. 



On 12/19/05, Alex Decastro <decastro at sdsc.edu> wrote:

I installed Paraview 2.2.1 with OSMesa 5.0.2 and MPICH 1.2.5.2 on RedHat
Linux.

I am trying to run pvserver in parallel using MPI.

 

Here is the shell script I use to run pvserver:

#!/bin/sh

export DISPLAY=0.0

$(MPI_HOME)/bin/mpirun -v -machinefile machines.

txt -np 2 $(PARAVIEW_HOME)/bin/pvserver --use-offscreen-rendering

 

machines.txt - is a text file listing two machines.

 

Here is the error log:

Listen on port: 11111

Waiting for client...

connected to port 11111

Client connected.

Process id: 1 >> ERROR: In
/projects/vis/users/decastro/paraview-mpi2/paraview-2.2.1/VTK/Rendering/
vtkXOpenGLRenderWindow.cxx, line 326

vtkXOpenGLRenderWindow (0xb7825c0): bad X server connection.

  

Process id: 1 >> ERROR: In
/projects/vis/users/decastro/paraview-mpi2/paraview-2.2.1/VTK/Rendering/
vtkXOpenGLRenderWindow.cxx, line 169

vtkXOpenGLRenderWindow (0xb7825c0): bad X server connection.

 

On both machines, I logged into the console and set the environment
variable: setenv DISPLAY :0.0

Everything works fine if I use -np 1 instead of -np 2.

It is possible that security restrictions on our Linux system prevent
the two pvserver processes from communicating using X server. I cannot
run "xhost +" on our Linux system, due to our security restrictions.
Could that be related to the problem?

 

For example, if I use rsh to start xclock, I get the following error:

% rsh machine xclock

Error: Can't open display.

 

Thanks for any help,

Alex

 


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