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DOI: 10.4230/LIPIcs.DISC.2023.16
Send/Receive Patterns Versus Read/Write Patterns in Crash-Prone Asynchronous Distributed Systems

Authors: Mathilde Déprés, Achour Mostéfaoui, Matthieu Perrin, and Michel Raynal

Published in: LIPIcs, Volume 281, 37th International Symposium on Distributed Computing (DISC 2023)

Abstract
This paper is on the power and computability limits of messages patterns in crash-prone asynchronous message-passing systems. It proposes and investigates three basic messages patterns (encountered in all these systems) each involving two processes, and compares them to their Read/Write counterparts. It is first shown that one of these patterns has no Read/Write counterpart. The paper proposes then a new one-to-all broadcast abstraction, denoted Mutual Broadcast (in short MBroadcast), whose implementation relies on two of the previous messages patterns. This abstraction provides each pair of processes with the following property (called mutual ordering): for any pair of processes p and p', if p broadcasts a message m and p' broadcasts a message m', it is not possible for p to deliver first (its message) m and then m' while p' delivers first (its message) m' and then m. It is shown that MBroadcast and atomic Read/Write registers have the same computability power (independently of the number of crashes). Finally, in addition to its theoretical contribution, the practical interest of MBroadcast is illustrated by its (very simple) use to solve basic upper level coordination problems such as mutual exclusion and consensus. Last but not least, looking for simplicity was also a target of this article.
Cite as

Mathilde Déprés, Achour Mostéfaoui, Matthieu Perrin, and Michel Raynal. Send/Receive Patterns Versus Read/Write Patterns in Crash-Prone Asynchronous Distributed Systems. In 37th International Symposium on Distributed Computing (DISC 2023). Leibniz International Proceedings in Informatics (LIPIcs), Volume 281, pp. 16:1-16:24, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2023)

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@InProceedings{depres_et_al:LIPIcs.DISC.2023.16,
  author =	{D\'{e}pr\'{e}s, Mathilde and Most\'{e}faoui, Achour and Perrin, Matthieu and Raynal, Michel},
  title =	{{Send/Receive Patterns Versus Read/Write Patterns in Crash-Prone Asynchronous Distributed Systems}},
  booktitle =	{37th International Symposium on Distributed Computing (DISC 2023)},
  pages =	{16:1--16:24},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-301-0},
  ISSN =	{1868-8969},
  year =	{2023},
  volume =	{281},
  editor =	{Oshman, Rotem},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.DISC.2023.16},
  URN =		{urn:nbn:de:0030-drops-191420},
  doi =		{10.4230/LIPIcs.DISC.2023.16},
  annote =	{Keywords: Asynchrony, Atomicity, Broadcast abstraction, Characterization, Consensus, Crash failure, Distributed Computability, Distributed software engineering, Computability, Lattice agreement, Message-passing, Message pattern, Mutual exclusion, Quorum, Read/write pattern, Read/Write register, Test\&Set, Simplicity, Two-process communication}
}
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