[mpich-discuss] mpiexec and DISPLAY for remote hosts

Reuti reuti at staff.uni-marburg.de
Tue Nov 11 18:12:02 CST 2014


ssh_config or sshd_config? It should go to the first one.

Von meinem iPod gesendet

Am 12.11.2014 um 00:00 schrieb "Isaila, Florin D."  
<fisaila at mcs.anl.gov>:

> Hi,
>
> I am having troubles running mpiexec (from MPICH 3.1) on remote  
> hosts with xterm (for debugging purposes) from an Ubuntu box.
>
> The following command works perfectly in local:
> mpiexec -n 1 xterm
>
> However, if I use a machine file:
> mpiexec -f macfile -n 1 xterm
> xterm Xt error: Can't open display:
> xterm:  DISPLAY is not set
>
> === 
> === 
> === 
> === 
> === 
> ====================================================================
> =   BAD TERMINATION OF ONE OF YOUR APPLICATION PROCESSES
> =   PID 19225 RUNNING AT thwomp.mcs.anl.gov
> =   EXIT CODE: 1
> =   CLEANING UP REMAINING PROCESSES
> =   YOU CAN IGNORE THE BELOW CLEANUP MESSAGES
> === 
> === 
> === 
> === 
> === 
> ====================================================================
>
> X forwarding is activated:
> fisaila at howard:bin$ grep X11Forwarding /etc/ssh/sshd_config
> X11Forwarding yes
>
> The following command works:
> fisaila at howard:bin$ ssh thwomp.mcs.anl.gov xterm
>
> Any suggestion how to solve this?
>
> Thanks
> Florin
>
>
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