Approximate Real-Time Clocks for Scheduled Events

Research output: Contribution to conferencesPaperContributedpeer-review

Contributors

Abstract

This paper presents a simple protocol that provides application processes with an approximate real-time notion. This time notion is very versatile. At one extreme, it behaves at least as virtual time (being thereby consistent with causality). At the other extreme, it behaves as real-time. More precisely, with respect to approximate real-time all scheduled events are always executed at their scheduled time. If local computations took no time, approximate real-time would always be real-time. The system facilitates the rescheduling of events to bring real-time and approximate time closer together if local computations take too much time. A time-slotted leader election protocol using the proposed approximate time notion is described.

Details

Original languageEnglish
Number of pages9
Publication statusPublished - 2002
Peer-reviewedYes

Conference

TitleFifth IEEE International Symposium on Object-Oriented Real-Time Distributed Computing. ISIRC 2002
Abbreviated titleSIRC 2002
Conference number
Duration29 April 2002
Degree of recognitionInternational event
Location
CityWashington
CountryUnited States of America

Keywords

Research priority areas of TU Dresden

DFG Classification of Subject Areas according to Review Boards

Keywords

  • Approximate time, real-time, virtual time, leader election, real-time consistency, adaptation, Clocks, Object oriented modeling, Real time system, Computational modeling, Protocols, Distributed computing, Discrete event simulation, Nominations and elections, Computer science, Processor scheduling, virutal time, rescheduling, local computations, time-lotted leader election protocol