Fault-tolerant average execution time optimization for general-purpose multi-processor system-on-chips

Summary, in English

Fault-tolerance is due to the semiconductor technology development important, not only for safety-critical systems but also for general-purpose (non-safety critical) systems. However, instead of guaranteeing that deadlines always are met, it is for general-purpose systems important to minimize the average execution time (AET) while ensuring fault-tolerance. For a given job and a soft (transient) error probability, we define mathematical formulas for AET that includes bus communication overhead for both voting (active replication) and rollback-recovery with checkpointing (RRC). And, for a given multi-processor system-on-chip (MPSoC), we define integer linear programming (ILP) models that minimize AET including bus communication overhead when: (1) selecting the number of checkpoints when using RRC, (2) finding the number of processors and job-to-processor assignment when using voting, and (3) defining fault-tolerance scheme (voting or RRC) per job and defining its usage for each job. Experiments demonstrate significant savings in AET.

• Författare: M. Vayrynen; V. Singh; Erik Larsson
• Publiceringsår: 2009
• Språk: Engelska
• Sidor: 484-489
• Publikation/Tidskrift/Serie: 2009 Design, Automation & Test in Europe Conference & Exhibition
• Länkar: http://dx.doi.org/10.1109/DATE.2009.5090713
• Dokumenttyp: Konferensbidrag
• Ämne: Electrical Engineering, Electronic Engineering, Information Engineering
• Conference name: Design Automation and Test in Europe (DATE 2009)
• Conference date: 2009-04-20 - 2009-04-24
• Conference place: Nice, France
• Status: Published
• ISBN/ISSN/Övrigt: ISBN: 978-1-4244-3781-8