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Fair Synthesis for Asynchronous Distributed Systems

Paul Gastin 1, 2 Nathalie Sznajder 3 
2 MEXICO - Modeling and Exploitation of Interaction and Concurrency
LSV - Laboratoire Spécification et Vérification [Cachan], Inria Saclay - Ile de France
3 MoVe - Modélisation et Vérification
LIP6 - Laboratoire d'Informatique de Paris 6
Abstract : We study the synthesis problem in an asynchronous distributed setting: a finite set of processes interact locally with an uncontrollable environment and communicate with each other by sending signals -- actions controlled by a sender process and that are immediately received by the target process. The fair synthesis problem is to come up with a local strategy for each process such that the resulting fair behaviors of the system meet a given specification. We consider external specifications satisfying some natural closure properties related to the architecture. We present this new setting for studying the fair synthesis problem for distributed systems, and give decidability results for the subclass of networks where communications happen through a strongly connected graph. We claim that this framework for distributed synthesis is natural, convenient and avoids most of the usual sources of undecidability for the synthesis problem. Hence, it may open the way to a decidable theory of distributed synthesis.
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Submitted on : Wednesday, January 8, 2014 - 2:52:35 PM
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Paul Gastin, Nathalie Sznajder. Fair Synthesis for Asynchronous Distributed Systems. ACM Transactions on Computational Logic, Association for Computing Machinery, 2013, 14 (2), pp.9. ⟨10.1145/2480759.2480761⟩. ⟨hal-00925735⟩



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