<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">You may need srun to allocate a pty for the command. The InteractiveStepOptions we use (that are handed to srun when no explicit command is given to salloc) are:<div class=""><br class=""></div><div class=""><br class=""></div><blockquote style="margin: 0 0 0 40px; border: none; padding: 0px;" class=""><div class="">--interactive --pty --export=TERM</div></blockquote><div class=""><div class=""><br class=""></div><div class=""><br class=""></div><div class="">E.g. without those flags a bare srun gives a promptless session:</div><div class=""><br class=""></div><div class=""><br class=""></div></div><blockquote style="margin: 0 0 0 40px; border: none; padding: 0px;" class=""><div class=""><div class=""><b class="">[(it_nss:frey)@login00.darwin ~]$ salloc -p idle srun /opt/shared/singularity/3.10.0/bin/singularity shell /opt/shared/singularity/prebuilt/postgresql/13.2.simg</b></div></div><div class=""><div class="">salloc: Granted job allocation 3953722</div></div><div class=""><div class="">salloc: Waiting for resource configuration</div></div><div class=""><div class="">salloc: Nodes r1n00 are ready for job</div></div><div class="">ls -l<br class="">total 437343<br class="">-rw-r--r-- 1 frey it_nss 180419 Oct 26 16:56 amd.cache<br class="">-rw-r--r-- 1 frey it_nss 72 Oct 26 16:52 amd.conf<br class="">-rw-r--r-- 1 frey everyone 715 Nov 12 23:39 anaconda-activate.sh<br class="">drwxr-xr-x 2 frey everyone 4 Apr 11 2022 bin</div><div class=""> :</div></blockquote><div class=""><div class=""><br class=""></div><div class=""><br class=""></div><div class="">With the --pty flag added:</div><div class=""><br class=""></div><div class=""><br class=""></div></div><blockquote style="margin: 0 0 0 40px; border: none; padding: 0px;" class=""><div class=""><div class=""><b class="">[(it_nss:frey)@login00.darwin ~]$ salloc -p idle srun --pty /opt/shared/singularity/3.10.0/bin/singularity shell /opt/shared/singularity/prebuilt/postgresql/13.2.simg</b></div></div><div class=""><div class="">salloc: Granted job allocation 3953723</div></div><div class=""><div class="">salloc: Waiting for resource configuration</div></div><div class=""><div class="">salloc: Nodes r1n00 are ready for job</div></div><div class=""><div class="">Singularity></div></div></blockquote><div class=""><div class=""><br class=""></div><div class=""><br class=""></div><div class=""><br class=""><blockquote type="cite" class="">On Feb 8, 2023, at 09:47 , Groner, Rob <<a href="mailto:rug262@psu.edu" class="">rug262@psu.edu</a>> wrote:<br class=""><br class="">I tried that, and it says the nodes have been allocated, but it never comes to an apptainer prompt.<br class=""><br class="">I then tried doing them in separate steps. Doing salloc works, I get a prompt on the node that was allocated. I can then run "singularity shell <sif>" and get the apptainer prompt. If I prefix that command with "srun", then it just hangs and I never get the prompt. So that seems to be the sticking point. I'll have to do some experiments running singularity with srun.<br class=""><br class="">From: slurm-users <<a href="mailto:slurm-users-bounces@lists.schedmd.com" class="">slurm-users-bounces@lists.schedmd.com</a>> on behalf of Jeffrey T Frey <frey@udel.edu><br class="">Sent: Tuesday, February 7, 2023 6:16 PM<br class="">To: Slurm User Community List <slurm-users@lists.schedmd.com><br class="">Subject: Re: [slurm-users] slurm and singularity<br class=""> <br class="">You don't often get email from frey@udel.edu. Learn why this is important<br class=""><blockquote type="cite" class="">The remaining issue then is how to put them into an allocation that is actually running a singularity container. I don't get how what I'm doing now is resulting in an allocation where I'm in a container on the submit node still!<br class=""></blockquote><br class="">Try prefixing the singularity command with "srun" e.g.<br class=""><br class=""><br class="">salloc <salloc-parameters> srun <srun-parameters> /usr/bin/singularity shell <path to sif><br class=""></blockquote><br class=""></div></div></body></html>