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Mixed-criticality scheduling on multiprocessors

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Abstract

The scheduling of mixed-criticality implicit-deadline sporadic task systems on identical multiprocessor platforms is considered. Two approaches, one for global and another for partitioned scheduling, are described. Theoretical analyses and simulation experiments are used to compare the global and partitioned scheduling approaches.

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Notes

  1. We assume that the run-time system provides support for ensuring that jobs do not execute for more than a specified amount; see, e.g., Baruah et al. (2011b) for a discussion of this issue.

  2. By applying some results from Baruah et al. (2012), this result can easily be improved to show that the speedup bound is actually no more than ((4/3)+ϵ).

  3. Although this is not a multiprocessor example, it serves to illustrate the steps taken by the algorithm in a relatively simple manner.

  4. Observe that these conditions are exactly the ones that we have generalized in order to come up with the conditions P1–P2 (Eqs. (2) and (3)) in Sect. 5.2.

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Authors and Affiliations

  1. Department of Computer Science, The University of North Carolina at Chapel Hill, Chapel Hill, USA

    Sanjoy Baruah, Bipasa Chattopadhyay & Haohan Li

  2. Department of Computer Science, KAIST, Daejeon, Korea

    Insik Shin

Authors
  1. Sanjoy Baruah
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  2. Bipasa Chattopadhyay
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  3. Haohan Li
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  4. Insik Shin
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Corresponding author

Correspondence to Sanjoy Baruah.

Additional information

Work supported by NSF grants CNS 1218693, CNS 1016954, and CNS 1115284; ARO grant W911NF-09-1-0535; AFOSR grant FA9550-09-1-0549; AFRL grant FA8750-11-1-0033; BRL (2009-0086964); BSRP (2010-0006650, 2012-R1A1A1014930); KEIT (2011-10041313); DGIST CPS Global Center funded by Korea Government (MEST/MKE).

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Baruah, S., Chattopadhyay, B., Li, H. et al. Mixed-criticality scheduling on multiprocessors. Real-Time Syst 50, 142–177 (2014). https://doi.org/10.1007/s11241-013-9184-2

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