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 <ch...@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 ::::::::::::::::::::::::::::::::::::::::::::::::::::::