Reasoning about a Distributed Probabilistic System

Ukachukwu Ndukwu, J W Sanders

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

Abstract

Reasoning about a distributed system that exhibits a combination of probabilistic and temporal behaviour does not seem to be easy with current techniques. The reason is the interaction between probability and abstraction (local block), made worse by remote synchronisation. The formalism of process algebra has not so far provided much insight, and so the alternative of shared-variable concurrency has been explored. In this paper the recently proposed language ptsc (for probability, time and shared-variable concurrency) is extended by constructs for interleaving and local block. Both enhance a designer's ability to modularise a design; the latter also permits a design to be compared with its more abstract specification, by concealing appropriately chosen design variables. Laws of the extended language are studied and applied in a case study consisting of a faulty register-transfer-level design.
Original languageEnglish
Title of host publicationThoery of Computing 2009
Subtitle of host publicationProceedings of the Fifteenth Computing: The Australasian Theory Symposium (CATS 2009)
EditorsPrabhu Manyem Rod Downey
Place of PublicationAustralia
PublisherAustralian Computer Society
Pages37-44
Number of pages8
ISBN (Print)9781920682750
Publication statusPublished - 2009
Externally publishedYes
EventThe Fifteenth Computing: The Australasian Theory Symposium (CATS 2009) - Wellington, New Zealand
Duration: 20 Jan 200923 Jan 2009

Conference

ConferenceThe Fifteenth Computing: The Australasian Theory Symposium (CATS 2009)
CityWellington, New Zealand
Period20/01/0923/01/09

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