[slurm-users] Issue with x11

[Mahmood Naderan]

>What does this say?
>echo $DISPLAY

On frontend of compute-0-0?
[mahmood at rocks7 ~]$ echo $DISPLAY
:1



>To get native X11 working with SLURM, we had to add this config to
sshd_config on the login node (your rocks7 host)
>X11UseLocalhost no
>You'll then need to restart sshd

I checked that and it was commented. I modified that and restarted the
service. But still get the same error

[root at rocks7 mahmood]# grep X11UseLocalhost /etc/ssh/sshd_config
#X11UseLocalhost yes
[root at rocks7 mahmood]# vim /etc/ssh/sshd_config
[root at rocks7 mahmood]# systemctl restart sshd
sshd@                sshd-keygen.service  sshd.service
sshd.socket
[root at rocks7 mahmood]# systemctl restart sshd
[root at rocks7 mahmood]# grep X11UseLocalhost /etc/ssh/sshd_config
X11UseLocalhost no
[root at rocks7 mahmood]# exit
exit
[mahmood at rocks7 ~]$ srun --x11 --nodelist=compute-0-0 --account y4
--partition RUBY -n 1 -c 4 --mem=1GB  xclock
srun: error: Cannot forward to local display. Can only use X11 forwarding
with network displays.



Should I modify that parameter on compute-0-0 too?


Regards,
Mahmood
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