Interactive graphical simulation using modified Petri nets

  • Authors:
  • C. P. Crowley;J. D. Noe

  • Affiliations:
  • -;-

  • Venue:
  • ANSS '75 Proceedings of the 3rd symposium on Simulation of computer systems
  • Year:
  • 1975

Quantified Score

Hi-index 0.00

Visualization

Abstract

A graphical language for modeling and simulation is described. The language is called E-nets and is particularly suitable for describing the concurrency and interaction of parallel processes. It is based on the Petri net model of asynchronous processes and basically uses the Petri net graphical model combined with a procedural “interpretation” which describes the quantitative aspects of the system. The E-net language is used to model a disk access system involving two CDC 6400's, two disk storage controllers and six disk storage units. The E-net model of this system is presented and explained in detail. A graphical editor for producing E-nets and a program for simulating E-nets are described. The E-net simulator allows the user to watch the dynamic progress of the simulation and interact with it at any point. The E-net model of the disk system is compared with a SIMULA model of the same system and the E-net language is compared with conventional simulation languages.