Actor-Like cP Systems

  • Alec Henderson
  • Radu NicolescuEmail author
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 11399)


We propose a new version of our cP systems, extended to match the Actor model, thereby solving an earlier open problem. In the new version, top-cells have control upon the input message flow, to decide which message types are acceptable and at what time. We assess its capabilities by proposing a revised version of our previous best models for the Byzantine agreement problem – a famous problem in distributed algorithms, with non-trivial data structures and algorithms. The new actor-based solution uses a substantially shorter fixed sized alphabet and ruleset, independent of the problem size. Moreover, in contrast to our previous models, additional helper/firewall cells are not anymore needed to ensure protection against Sybil attacks. Also, as any standard distributed algorithm, the novel actor-based cP model uses exactly one top-level cell for each process in Byzantine agreement, thus solving another open problem.


Distributed algorithms Synchronous model Actor model Membrane computing P systems cP systems Prolog terms and unification Inter-cell parallelism Intra-cell parallelism Byzantine agreement EIG trees 



We are deeply indebted to the co-authors of our former studies on the Byzantine agreement, for their earlier contributions.


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Authors and Affiliations

  1. 1.The University of AucklandAucklandNew Zealand

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