Parallel discrete event simulation of space shuttle operations

This paper describes the application of parallel simulation techniques to represent structured functional parallelism present within the space shuttle operations flow, utilizing the synchronous parallel environment for emulation and discrete-event simulation (SPEEDES), an object-oriented multicomputing architecture. SPEEDES is a unified parallel simulation environment, which allocates events over multiple processors to get simulation speed up. Its optimistic processing capability minimizes simulation lag time behind wall clock time, or multiples of real-time. SPEEDES accommodates increases in processes complexity with additional parallel computing nodes to allow sharing of processing loads. This papers focuses on the whole process of translating a model of space shuttle operations flow represented in a process-driven approach to object oriented design, verification, validation, and implementation.