This bug report appears to address the issue you're seeing:
https://bugs.schedmd.com/show_bug.cgi?id=5868
On 2/24/20 4:46 AM, Pär Lundö wrote:
Dear all,
I started testing and evaluating Slurm roughly a year ago and used it
succesfully with MPI-programs.
I have now identified that I need to use X-forwarding in order to make
use of an application needed to run a GUI.
However I seem not to be able to use the ”X11Forwarding” in Slurm.conf
with any sucess.
A simple test with srun as ”srun - -x11 <script-to-start>”, yields an
error stating:
”srun: error: x11_get_xauth: Could not retrieve magic cookie. Cannot use
X11 forwarding.”
I’m guessing that there some additional setting I’m missing out on.
Searching through documentation does not reveal anything extraordinary
to be performed with the X11-forwarding. I have searched bug-reports and
found similiar problems but fixes have been implemented in
Slurm-versions prior to the one I am using. In addition users have been
reporting that the implementation made by Slurm, now have fixed their
issues.
I have used the ”export=DISPLAY, HOME” as an additional argument for
srun but without any progress.
Anyone with similiar problem who can aid or advice me on howto use the
X11Forward feature?
Any help is much appreciated.
I am running Slurm 19.05 and Ubuntu 18.10.
Best regards,
Pär Lundö
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