On the Use of Controlled Types for Fossil Collection in a Distributed Simulation Systems

  • Authors:

  • Helge Hagenauer

  • Affiliations:

  • -

  • Venue:
  • Ada-Europe '99 Proceedings of the 1999 Ada-Europe International Conference on Reliable Software Technologies
  • Year:
  • 1999

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Abstract

In the field of distributed discrete event simulation the time warp algorithm is well known. For a generalization, called split queue time warp, a prototype using Ada 95 was built. The present paper describes an implementation of an add-on for fossil collection needed to prevent from memory overflow during a simulation run. The method is based on determining the simulation time, called global virtual time, by respecting the special submodel structure of the prototype. A discussion about the usefulness of Ada's concept of controlled types for such a purpose is included.