Hi, Playing with the 1.10.0 (just released) build I found a cosmetic misleading error message in mpirun. If by mistake you type -hosts (with an extra "s"), the error message complains about an unknown "-o" option that is actually not being used. Typing the parameters correctly fixes the issue :)
m> mpirun --allow-run-as-root -hosts m7,m8 -np 2 osu_latency mpirun: Error: unknown option "-o" Type 'mpirun --help' for usage. Thanks, Regards, _MAC
