Đánh giá hiệu năng mạng sự kiện rời rạc với GPenSIM
Đánh giá hiệu năng mạng sự kiện rời rạc với GPenSIM
Introduction
Modeling, analysis, and performance evaluation of discrete event systems are conducted in
order to find out useful information about the behavior of the systems, such as the productivity (flow
rate), the existence of bottlenecks and deadlocks, etc. Petri net is useful for the performance evaluation of discrete event systems because of its useful properties such as self-documentation and explicit state information. A literature study reveals that the Petri Net models of discrete event systems are most frequently event graphs, which form a subclass of Petri nets [1–3]. Also, these event graphs are strongly connected. A literature study also reveals that there are some simple methods for performance evaluation and that these methods are only applicable for strongly connected event graphs [1–3].
General-purpose Petri Net simulator (GPenSIM) is a new tool for the modeling, simulation, and
performance analysis of discrete event systems. GPenSIM, developed by the first author of this paper,
is a toolbox on the MATLAB platform and is being used by universities around the world because of
its simplicity, flexibility, and extensibility. To build Petri net models, GPenSIM provides a Petri net
language, with which a variety of Petri net classes and extensions can be developed. GPenSIM also
provides some functions for the analysis of Petri nets.
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