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Modeling and verification of a class of real-time systems by the use of High Level Petri Nets by George Hassapis; Dimitra Ananidou is a Computer Science article available to read on EtoBox.

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Homogeneous, shared memory multiprocessors that incorporate real-time operating systems constitute in many corporations the basic platforms for developing applications of plant monitoring and automation. In this work, a template model based on the High Level Petri Net (HLPN) formalism is proposed for this class of computers. Mapping functional and timing requirements of the application software to states of this model and searching for their existence in the reachability tree of the net can verify the satisfaction of these requirements. A state searching algorithm has been developed for the case of a shared memory multiprocessor in which there is a bus-based interconnection network supporting a single communication channel for the exchange of data among the CPUs, the common memory and the computer interfaces. This algorithm groups the infinite number of states of the HLPN to a number of finite regions, identifies the region, which the desired state belongs to, and checks for the existence of a path from the initial state that leads to this region. In order to demonstrate the use of the template in the modeling and verification of timing and functional specifications of a system of

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Author

George Hassapis; Dimitra Ananidou

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0164-1212)

Published

2003

Language

EN

Field

Computer Science (Physical Sciences)