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Subject: [OMPI users] Occasional mpirun hang on completion
From: Barry Rountree (rountree_at_[hidden])
Date: 2008-01-13 09:54:47


Hello,

The following command

mpirun -np 2 -hostfile ~/hostfile uptime

will occasionally hang after completing. The expected output appears on
the screen, but mpirun needs a SIGKILL to return to the console.

This has been verified with OpenMPI v1.2.4 compiled with both icc 9.1
20061101 (aka 9.1.045) and gcc 4.1.0 20060304 (aka Red Hat 4.1.0-3). I
have also tried earlier versions of OpenMPI and found the same bug
(1.1.2 and 1.2.2).

Using -verbose didn't provide any additional output. I'm happy to help
tracking down whatever is causing this.

Many thanks,

Barry Rountree
Ph.D. Candidate, Computer Science
University of Georgia