Hello together! I've built v1.4.3 (which was in OFED-1.5.3.2) 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': cluster1 cluster2 cluster3 cluster4 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! Regards, Lukas