Off-line (Optimal) multiprocessor scheduling of dependent periodic tasks

  • Authors:
  • Julie Baro;Frédéric Boniol;Mikel Cordovilla;Eric Noulard;Claire Pagetti

  • Affiliations:
  • ONERA, Toulouse, France;ONERA, Toulouse, France;ONERA, Toulouse, France;ONERA, Toulouse, France;ONERA, Toulouse, France ENSEEIHT, Université de Toulouse, France

  • Venue:
  • Proceedings of the 27th Annual ACM Symposium on Applied Computing
  • Year:
  • 2012

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Abstract

This paper addresses the global scheduling of constrained deadline periodic dependent task sets on multiprocessor platforms composed of identical processors. We propose two orthogonal approaches: (1) an off-line computation of a valid fixed priority assignment (2) a computation of an off-line schedule. The method in both cases is based on the efficient exploration of a finite automaton encoding all the possible executions. Even if the problems are NP-complete, we obtain rather reasonable performances as illustrated in the benchmarks.