That's very odd, indeed -- it's listed as being inside MPI_INIT, but we don't
get any further details from there. :-\
Any chance you could try upgrading to OMPI 1.4.5 and/or 1.5.5?
On Apr 24, 2012, at 1:57 PM, Jeffrey A Cummings wrote:
> I've been having an intermittent failure during MPI init
Hi Jeffrey
Assuming you are on Linux,
a frequent cause of out-of-nowhere segfaults
is a limited/small stack size.
They can happen if you [ab]use big automatic arrays, etc.
You can set the stacksize bigger/unlimited
with the ulimit/limit command,
or edit the /etc/security/limits.conf.
Of course,
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.
