Abstraction for concurrent objects

  • Authors:
  • Ivana Filipovi;Peter OHearn;Noam Rinetzky;Hongseok Yang

  • Affiliations:
  • -;-;-;-

  • Venue:
  • Theoretical Computer Science
  • Year:
  • 2010

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Abstract

Concurrent data structures are usually designed to satisfy correctness conditions such as sequential consistency or linearizability. In this paper, we consider the following fundamental question: What guarantees are provided by these conditions for client programs? We formally show that these conditions can be characterized in terms of observational refinement. Our study also provides a new understanding of sequential consistency and linearizability in terms of abstraction of dependency between computation steps of client programs.