Electrical & Electronic Engineering |
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Stochastic individual predicate/transition nets |
Yao YUE, Chun-ming ZHANG, Hai-xin WANG, Guo-qiang BAI, Hong-yi CHEN |
Institute of Microelectronics, Tsinghua University, Beijing 100084, China |
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Abstract We analyze the drawbacks of generally distributed time transition stochastic Petri nets (GDTT_SPN) in evaluating the performance of parallel systems, and propose a more general model, stochastic individual predicate/transition nets (SIPTN). SIPTN has higher modeling power and could provide more realistic models compared to GDTT_SPN, because in SIPTN the sojourn time distribution is determined not only by the transition, but also by the individuals. It is further proved that GDTT_SPN is a subset of SIPTN. As SIPTN introduces folding techniques from predicate/transition nets, SIPTN models have simpler and more intuitive graphic notations and accordingly higher usability, and thus are suitable for constructing simulation models for parallel systems.
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Received: 08 April 2008
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