Something is broken in the trunk.
# mpirun -np 2 -H host1,host2 ./osu_latency
--------------------------------------------------------------------------
Some of the requested hosts are not included in the current allocation.
The requested hosts were specified with --host as:
host1,host2
Please check your allocation or your request.
--------------------------------------------------------------------------
--------------------------------------------------------------------------
mpirun was unable to start the specified application as it encountered
an error.
More information may be available above.
--------------------------------------------------------------------------
If I create hostfile with host1 and host2 and use it instead of -H
mpirun works.
--
Gleb.
