The Parallel Virtual Machine #PVM#, an integrated framework forheterogeneous network computing, lets scientists exploit collections ofnetworked machines when carrying out complex scienti#c computations.Under PVM, a user-de#ned grouping of serial, parallel, andvector computers appears as one large distributed-memory machine.Con#guring a personal parallel virtual computer involves simply listingthe names of the machines in a #le that is read when PVM is started.Applications can be...