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