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Subject: [OMPI devel] Launcher in trunk is broken?
From: Yevgeny Kliteynik (kliteyn_at_[hidden])
Date: 2011-10-10 10:23:34


It looks like the process launcher is broken in the OMPI trunk:
If you run any simple test (not necessarily including MPI calls) on 4 or
more nodes, the MPI processes won't be killed after the test finishes.

$ mpirun -host host_1,host_2,host_3,host_4 -np 4 --mca btl sm,tcp,self /bin/hostname

Output:
host_1
host_2
host_3
host_4

And test is hanging......

I have an older trunk (r25228), and everything is OK there.
Not sure if it means that something was broken after that, or the problem
existed before, but kicked in only now due to some other change.

-- YK