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Subject: [OMPI users] How to check processes working in parallel on one node of MPI cluster
From: Jack Bryan (dtustudy68_at_[hidden])
Date: 2012-06-23 15:33:30


I am running an OpenMPI program on a linux cluster with 4 quad cores per node.

I use qstat -n jobID to check how many processes working in parallel and find that :


But, when I use ssh to be on a node , e..g ssh node175,

I use top command to check how many processes working on node 175 and find that
there are only one process working, not 8 processes.

Would you please tell me how to check the processes number on one node ?

Any help will be appreciated.


Jinxu Ding