Computational Geometric Performance Analysis of Limit Cycles in Timed Transition Systems
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Certain parallel software performance evaluation problems are equivalent to computational geometric problems. Consider a timed transition system representing a parallel program: a set of variables, a set of states, an initial state, a transition function mapping a set to a set of successor states, and a description of the time between transitions. Given a timed transition system, the paper solves four problems: (1) state the necessary and sufficient conditions for a TES to contain a LCES; (2) given the initial starting time of each process, find a representation of the set of all possible TESs; (3) determine if any initial process starting times exist that lead to a LCES in which no process ever blocks; and (4) find the set of all possible LCESs.