[Beowulf] perl with OpenMPI gotcha?

[David Mathog]

On Fri, 20 Nov 2020, David Mathog wrote:

I should add that passwordless ssh and regular
OpenMPI (simple bash script via mpirun) both work fine on the test 
machine:

ssh localhost hostname
#poweredge.cluster


cat >/tmp/test.sh <<EOD
#!/bin/bash
hostname
set | grep -i rank
EOD
chmod 755 /tmp/test.sh
mpirun /tmp/test.sh
#poweredge.cluster
#OMPI_COMM_WORLD_LOCAL_RANK=0
#OMPI_COMM_WORLD_NODE_RANK=0
#OMPI_COMM_WORLD_RANK=0
#OMPI_FIRST_RANKS=0
#OMPI_MCA_orte_ess_node_rank=0
#PMIX_RANK=0
#poweredge.cluster
#OMPI_COMM_WORLD_LOCAL_RANK=1
#OMPI_COMM_WORLD_NODE_RANK=1
#OMPI_COMM_WORLD_RANK=1
#OMPI_FIRST_RANKS=0
#OMPI_MCA_orte_ess_node_rank=1
#PMIX_RANK=1

Regards,

David Mathog