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Reachability in Distributed Memory Automata

Authors Benedikt Bollig, Fedor Ryabinin, Arnaud Sangnier



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Author Details

Benedikt Bollig
  • CNRS, LSV, ENS Paris-Saclay, Université Paris-Saclay, Gif-sur-Yvette, France
Fedor Ryabinin
  • IMDEA Software Institue, Madrid, Spain
Arnaud Sangnier
  • IRIF, Université de Paris, CNRS, France

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Benedikt Bollig, Fedor Ryabinin, and Arnaud Sangnier. Reachability in Distributed Memory Automata. In 29th EACSL Annual Conference on Computer Science Logic (CSL 2021). Leibniz International Proceedings in Informatics (LIPIcs), Volume 183, pp. 13:1-13:16, Schloss Dagstuhl - Leibniz-Zentrum für Informatik (2021)
https://doi.org/10.4230/LIPIcs.CSL.2021.13

Abstract

We introduce Distributed Memory Automata, a model of register automata suitable to capture some features of distributed algorithms designed for shared-memory systems. In this model, each participant owns a local register and a shared register and has the ability to change its local value, to write it in the global memory and to test atomically the number of occurrences of its value in the shared memory, up to some threshold. We show that the control-state reachability problem for Distributed Memory Automata is Pspace-complete for a fixed number of participants and is in Pspace when the number of participants is not fixed a priori.

Subject Classification

ACM Subject Classification
  • Theory of computation → Concurrency
Keywords
  • Distributed algorithms
  • Atomic snapshot objects
  • Register automata
  • Reachability

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References

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