I've built v1.4.3 (which was in OFED-18.104.22.168) and v1.4.4 (from you website).
But in both versions I've the following problem:
If I write some hosts into '/usr/mpi/gcc/openmpi-1.4.4/etc/openmpi-default-hostfile':
and execute 'mpirun -np 4 <app>" then only the local host is used.
If I execute 'mpirun -hostfile /.../openmpi-default-hostfile -np 4 <app>' all works fine.
So have I done something wrong or is there another possibility to set a system-wide list of default hosts (i.e. for all users)?
Many thanks for any help!