[slurm-users] Running pyMPI on several nodes

Jeffrey Frey frey at udel.edu
Fri Jul 12 14:31:48 UTC 2019

Have you tried

	srun -N# -n# mpirun python3 ....

Perhaps you have no MPI environment being setup for the processes?  There was no "--mpi" flag in your "srun" command and we don't know if you have a default value for that or not.

> On Jul 12, 2019, at 10:28 AM, Chris Samuel <chris at csamuel.org> wrote:
> On 11/7/19 11:04 pm, Pär Lundö wrote:
>> It works fine running on a single node(with ”-N1” instead of ”-N2”), but it is aborted or stopped when running on two nodes.
> What is the error you get?
> Does the same srun command but with "hostname" instead of Python work?
> -- 
> Chris Samuel  :  http://www.csamuel.org/  :  Berkeley, CA, USA

Jeffrey T. Frey, Ph.D.
Systems Programmer V / HPC Management
Network & Systems Services / College of Engineering
University of Delaware, Newark DE  19716
Office: (302) 831-6034  Mobile: (302) 419-4976

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