[GE users] workaround for Open MPI 1.3

fx d.love at liverpool.ac.uk
Mon Mar 30 16:24:22 BST 2009


This was brought up on the Open MPI list, but I don't think it's been
noted here:

There's a bug in Open MPI 1.3.0 and .1 (to be fixed in 1.3.2) which
breaks tight integration in SGE.  The workaround is to give `mpirun'
arguments `--mca orte_leave_session_attached 1' or
`--leave-session-attached'.  Alternatively, configure the default;
adding this to your <openmpi home>/etc/openmpi-mca-params.conf does the
trick:

  # Workaround for pre-1.3.2 bug -- avoid daemonizing orteds
  orte_leave_session_attached = 1

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