[slurm-users] About x11 support

[Chris Samuel]

On Tuesday, 20 November 2018 2:51:26 AM AEDT Mahmood Naderan wrote:

> With and without --x11, I am not able to see xclock on a compute node.
> 
> [mahmood at rocks7 ~]$ srun --x11 --nodelist=compute-0-3 -n 1 -c 6 --mem=8G -A
> y8 -p RUBY xclock
> srun: error: Cannot forward to local display. Can only use X11 forwarding
> with network displays.

So that looks like for some reason your display is set to :0 (or similar). Are 
you by some chance trying to run this on an X server on the console of rocks7?

> [mahmood at rocks7 ~]$ rocks run host compute-0-3 "yum list libssh2-devel"
> Warning: untrusted X11 forwarding setup failed: xauth key data not generated

That also looks like an error you should look into fixing first.

All the best,
Chris
-- 
 Chris Samuel  :  http://www.csamuel.org/  :  Melbourne, VIC