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The Combinatorics of Barrier Synchronization

Abstract : In this paper we study the notion of synchronization from the point of view of combinatorics. As a first step, we address the quantitative problem of counting the number of executions of simple processes interacting with synchronization barriers. We elaborate a systematic decomposition of processes that produces a symbolic integral formula to solve the problem. Based on this procedure, we develop a generic algorithm to generate process executions uniformly at random. For some interesting sub-classes of processes we propose very efficient counting and random sampling algorithms. All these algorithms have one important characteristic in common: they work on the control graph of processes and thus do not require the explicit construction of the state-space.
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Contributor : Antoine Genitrini <>
Submitted on : Monday, June 24, 2019 - 2:43:46 PM
Last modification on : Tuesday, March 23, 2021 - 9:28:02 AM

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Olivier Bodini, Matthieu Dien, Antoine Genitrini, Frederic Peschanski. The Combinatorics of Barrier Synchronization. PETRI NETS 2019 - 40th International Conference on Application and Theory of Petri Nets and Concurrency, Jun 2019, Aachen, Germany. pp.386-405, ⟨10.1007/978-3-030-21571-2_21⟩. ⟨hal-02163607⟩



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