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<p>Hi, <br>
</p>
<p>I'm unsuccessful in running an X11 application with a remote
SlurmctldHost. Let us call myfrontalnode the node from which the
user is running the slurm commands that is different from the host
SlurmctldHost.<br>
</p>
<p>What fails is the following :</p>
<blockquote>
<p>ssh -X myfrontalnode</p>
<p>srun --x11 xclock</p>
</blockquote>
<p>which returns a "Can't open display: localhost:56.0"</p>
<p>If I run the xclock with a ssh -X on the compute node (even the
same allocated by slurm with the above srun), it works. Namely,
the following works :</p>
<blockquote>
<p>ssh -X myfrontalnode</p>
<p>ssh -X mycomputenode xclock</p>
</blockquote>
<p>The xclock is correctly displayed on my local host;</p>
<p>Also, If I connect to the SlurmctldHost and then srun --x11 it
works as well. I believe there is something I did not configure
correctly on the myfrontalnode.<br>
</p>
<p>Thank you for your help;</p>
Jeremy.
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