1. A distributed discrete-event simulation system operable for processing time-stamped events in chronological order for simulating a multinode communications network, said simulation system comprising: a plurality of simulating platforms (SPs) operable for transmitting message packets to other said SPs for simulating node to node communications, each of said SPs simulating operation of a plurality of nodes within the communications network; and a system controller coupled via a communication medium to said plurality of SPs for controlling synchronization and message packet processing associated with said plurality of SPs; wherein, when said system controller instructs an SP to initiate a time-stamped event requiring multiple tasks to be performed, said SP responds to said time-stamped event by triggering execution of tasks associated with said time-stamped event in said other SPs via said message packets to provide parallel task processing for said particular time-stamped event among said plurality of SPs.