1% SF_BASIC Open cluster with four PS servers and random dispatching.
3% Source -> Dispatcher -> Server[1..4] -> Sink. The single call to
4% Network.clusterPs collapses what would otherwise be ~20 lines of
5% manual node/link wiring.
10D = ones(4, 1); % mean service time = 1 at each server
11model = Network.clusterPs(lambda, D, RoutingStrategy.RAND);
14disp(solver.getAvgTable());