[vtkusers] parallel rendering

[Berk Geveci]

When you start a parallel task with mpich using mpirun, only some of
your environment is propagated to all the processes. Therefore,
depending on your setup, the DISPLAY variable might end up being wrong
on some of the processes. This is what is happening in your case. One or
more processes are trying to open windows on a display they don't have
access to (or they have no display at all). You have to make sure that
all processes have the right DISPLAY variable set. You can do this by:
1. using a putenv() to set DISPLAY in your code before initializing VTK
2. putting something like  
export DISPLAY=:0.0
in your .cshrc, .kshrc, .bashrc or whatever. Of course this has very
annoying side effects if you remotely login to that machine so be
careful.

-Berk

On Mon, 2004-01-26 at 10:18, Sungeun Kim wrote:
> Hi, all!
> 
> I am trying to use VTK for parallel rendering with MPI on linux cluster.
> So, I tested some examples. During the test, I had some error message
> for 'TestParallelism'. My VTK version is 4.3 from CVS repository and I
> use the Red Hat 9 and mpich 1.2.5.2. The error message is on 'bad x
> server connection'.
> 
> I am wondering what the problem is and how I can solve this.
> 
> Please help me solve this.
> 
> Thans in advance.
> 
> Sungeun.
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-- 
Berk Geveci <berklist at nycap.rr.com>