Please post to the mail list, not to me personally.
If you are running the examples for ReaxFF and MEAM, they may be too tiny
for you to see any speed-up in parallel - I can't remember their details.
But when the simulation is done, on the screen or in the log file, is
a line that lists the "Loop time" on some # of atoms and procs. If that
says multiple procs, then you are certainly running on multiple procs.
If you are not getting speed-up, try a larger problem, e.g. one in the
bench dir.
Steve