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Subject: [OMPI users] Segmentation fault during MPI initialization
From: Jeffrey A Cummings (Jeffrey.A.Cummings_at_[hidden])
Date: 2012-04-24 13:57:39

I've been having an intermittent failure during MPI initialization (v
1.4.3) for several months. It comes and goes as I make changes to my
application, that is changes unrelated to MPI calls. Even when I have a
version of my app which shows the problem, it doesn't happen on every
submittal. This is a representative stack trace:

[mtcompute-6-6:05845] *** Process received signal ***
[mtcompute-6-6:05845] Signal: Segmentation fault (11)
[mtcompute-6-6:05845] Signal code: Address not mapped (1)
[mtcompute-6-6:05845] Failing at address: 0x2ac352e0bd80
[mtcompute-6-6:05845] [ 0] /lib64/ [0x314ee0eb10]
[mtcompute-6-6:05845] [ 1] /opt/openmpi/lib/ [0x2b2b3d42fa70]
[mtcompute-6-6:05845] [ 2]
/opt/openmpi/lib/ [0x2b2b3fa694ea]
[mtcompute-6-6:05845] [ 3] /opt/openmpi/lib/
[mtcompute-6-6:05845] [ 4] /opt/openmpi/lib/ [0x2b2b3d3f160c]
[mtcompute-6-6:05845] [ 5] /opt/openmpi/lib/
[mtcompute-6-6:05845] [ 6]
/home/cummings/DART/DARTHome/bin/linux/DebrisProp [0x418610]
[mtcompute-6-6:05845] [ 7] /lib64/
[mtcompute-6-6:05845] [ 8]
/home/cummings/DART/DARTHome/bin/linux/DebrisProp [0x417992]
[mtcompute-6-6:05845] *** End of error message ***
mpirun noticed that process rank 1 with PID 5845 on node
mtcompute-6-6.local exited on signal 11 (Segmentation fault).

Any suggestions would be welcome.

- Jeff Cummings