• Title/Summary/Keyword: 유니폼 멀티프로세서

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Optimal RM Scheduling for Simply Periodic Tasks on Uniform Multiprocessors (유니폼 멀티프로세서 환경에서 단순 주기성 태스크를 위한 최적 RM 스케줄링)

  • Jung, Myoung-Jo;Cho, Moon-Haeng;Kim, Joo-Man;Lee, Cheol-Hoon
    • The Journal of the Korea Contents Association
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    • v.9 no.12
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    • pp.52-63
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    • 2009
  • The problem of scheduling simply periodic task systems upon a uniform multiprocessor is considered. Partitioning of periodic task systems requires solving the bin-packing problem, which is known to be intractable (NP-hard in the strong sense). This paper presents a global scheduling algorithm which transforms a given simply periodic task system into another using a "task-splitting" technique. Each transformed simply periodic task system is guaranteed to be successfully scheduled upon any uniform multiprocessor using a partitioned scheduling algorithm. It is proven that the proposed algorithm achieves the theoretical maximum utilization bound upon any uniform multiprocessor platform.