Brief Announcement: Optimal Construction of Unique Identifiers from Bounded Registers

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Abstract

In this paper, we describe an algorithm implementing the unique-id abstraction from bounded-storage registers maintaining read, write, and FAI operations. Given k registers, storing w bits each, our implementation generates up to (k - 1) · 2w unique identifiers, assuming that k ≤ 2w + 1. We show that this is asymptotically optimal: no unique-id implementation can produce more than k · 2w + k + 1 identifiers.

Original languageEnglish
Title of host publicationPODC 2025 - Proceedings of the 2025 ACM Symposium on Principles of Distributed Computing
PublisherAssociation for Computing Machinery
Pages62-65
Number of pages4
ISBN (Electronic)9798400718854
DOIs
Publication statusPublished - 13 Jun 2025
Event44th ACM SIGACT-SIGOPS Symposium on Principles of Distributed Computing, PODC 2025 - Huatulco, Mexico
Duration: 16 Jun 202520 Jun 2025

Publication series

NameProceedings of the Annual ACM Symposium on Principles of Distributed Computing
VolumePart of F216205

Conference

Conference44th ACM SIGACT-SIGOPS Symposium on Principles of Distributed Computing, PODC 2025
Country/TerritoryMexico
CityHuatulco
Period16/06/2520/06/25

Keywords

  • bounded memory
  • concurrency
  • unique identifiers

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