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Energy-Efficient Fault-Tolerant Scheduling based on Duplicated Executions for Real-Time Tasks on Multicore Processors

  • Journal of The Korea Society of Computer and Information
  • Abbr : JKSCI
  • 2014, 19(5), pp.1-10
  • Publisher : The Korean Society Of Computer And Information
  • Research Area : Engineering > Computer Science

LEE KWAN WOO 1

1한성대학교

Accredited

ABSTRACT

The proposed scheme schedules given real-time tasks so that energy consumption of multicoreprocessors would be minimized while meeting tasks’ deadline and tolerating a permanent faultbased on the primary-backup task model. Whereas the previous methods minimize the overlappedtime of a primary task and its backup task, the proposed scheme maximizes the overlapped timeso as to decrease the core speed as much as possible. It is analytically verified that the proposedscheme minimizes the energy consumption. Also, the proposed scheme saves up to 77% energy consumption of the previous method through experimental performance evaluation.

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