Distributed computation of jobs

[Paul Boddie]

robert wrote:
>
> as many libs are restriced to certain OS'es, and/or need/rely on
> extension modules, few tags would probably improve: OS'es,
> pure-python, dependeniess

I've added some platform notes, although the library dependencies of
various MPI and PVM solutions are sort of obvious, but I'll get round
to adding those at some point unless you beat me to it. ;-)

Paul