i'm pretty sure, but don't quote me, that slurm forks processes from the slurmd to launch code and does not use ssh
On Thu, Apr 5, 2018 at 11:10 AM, Faraz Hussain <i...@feacluster.com> wrote: > Here's something quite baffling. I have a cluster running slurm but have not > setup passwordless ssh for a user yet. So when the user runs "mpirun -n 2 > -hostfile hosts hostname", it will hang because of ssh issue. That is > expected. > > Now the baffling thing is the mpirun command works inside a slurm script! > How can it work if passwordless ssh has not been configured? Does slurm use > some different authentication (munge?) to login to the hosts and execute the > hostname command? > > Or does slurm have some fancy behind the scenes integration with Intel mpi ? > > _______________________________________________ > Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing > To change your subscription (digest mode or unsubscribe) visit > http://www.beowulf.org/mailman/listinfo/beowulf _______________________________________________ Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
