Synthesis of a Reconfiguration Service for Mixed-Criticality Multi-Core Systems: An Experience Report

  • Md Tawhid Bin Waez
  • Andrzej Wąsowski
  • Juergen Dingel
  • Karen Rudie
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 8997)

Abstract

Task-level reconfiguration techniques in automotive applications aim to reallocate tasks to computation cores during failures to guarantee that the desired functionality is still delivered. We consider a class of mixed-criticality asymmetric multi-core systems inspired by our collaboration with a leading automotive manufacturing company, for which we automatically synthesize task-level reconfiguration services to reduce the number of processing cores and decrease the cost without weakening fault-tolerance. We admit the following types of faults: safety violations by tasks, permanent core failures, and temporary core failures. We use timed games to synthesize the controllers. The services suspend and reinstate the periodic executions of the non-critical tasks to ensure enough processing capacity for the critical tasks by maintaining lookup tables, which keep track of processing capacity. We present a methodology to synthesize the services and use a case study to show that suitable abstractions can dramatically improve the scalability of timed games-based tools for solving industrial problems.

Keywords

Outgoing Edge Central Controller Critical Task Core Recovery Operational Core 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgements

We would like to express our gratitude to the engineers and scientists of our industrial partner who contributed in this project. We also thank Alexandre David for his help with Uppaal Tiga.

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Copyright information

© Springer International Publishing Switzerland 2015

Authors and Affiliations

  • Md Tawhid Bin Waez
    • 1
  • Andrzej Wąsowski
    • 2
  • Juergen Dingel
    • 1
  • Karen Rudie
    • 1
  1. 1.Queen’s UniversityKingstonCanada
  2. 2.IT University of CopenhagenCopenhagenDenmark

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