dsh (the distributed shell) is a program which
executes a single command on multiple remote
machines. It can execute this command in parallel
(i.e., on any number of machines at a time) or
in serial (by specifying parallel execution of
the command on 1 node at a time). It was
originally designed to work with rsh, but has full
support for ssh and with a little tweaking of
the top part of the dsh executable, should work
with any program that allows remote execution of a
command without an interactive login.
