If you have a cluster which can not access the Internet (and
thus can not submit results to www.open-mpi.org), there's a
solution now. In mtt/trunk/client there's a simple web
proxy you can run like this:
$ client/mtt-relay --port 6789 &
Set mttdatabase_url as below in your [Reporter: IU database]
section, and your results should get submitted.
mttdatabase_url = host.where.mtt-relay.runs:6789