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DP2PN2Solver: A flexible dynamic programming solver software tool

Mauch H.

Control and Cybernetics

2006

Vol. 35, no 3

687-702

Dynamic programming (DP) is a very general optimization technique, which can be applied to numerous decision problems that typically require a sequence of decisions to be made. The solver software DP2PN2Solver presented in this paper is a general, flexible, and expandable software tool that solves DP problems. It consists of modules on two levels. A level one module takes the specification of a discrete DP problem instance as input and produces an intermediate Petri net (PN) representation called Bellman net (Lew, 2002; Lew, Mauch, 2003, 2004) as output - a middle layer, which concisely captures all the essential elements of a DP problem in a standardized and mathematically precise fashion. The optimal solution for the problem instance is computed by an "executable" code (e.g. Java, Spreadsheet, etc.) derived by a level two module from the Bellman net representation. DP2PN2Solver's unique potential lies in its Bellman net representation. In theory, a PN's intrinsic concurrency allows to distribute the computational load encountered when solving a single DP problem instance to several computational units.