Probabilistic Asynchronous pi-Calculus

  • Authors:
  • Oltea Mihaela Herescu;Catuscia Palamidessi

  • Affiliations:
  • -;-

  • Venue:
  • FOSSACS '00 Proceedings of the Third International Conference on Foundations of Software Science and Computation Structures: Held as Part of the Joint European Conferences on Theory and Practice of Software,ETAPS 2000
  • Year:
  • 2000

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Abstract

We propose an extension of the asynchronous π-calculus with a notion of random choice. We define an operational semantics which distinguishes between probabilistic choice, made internally by the process, and nondeterministic choice, made externally by an adversary scheduler. This distinction will allow us to reason about the probabilistic correctness of algorithms under certain schedulers. We show that in this language we can solve the electoral problem, which was proved not possible in the asynchronous π-calculus. Finally, we show an implementation of the probabilistic asynchronous π-calculus in a Java-like language.