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Fault-Tolerant Average Execution Time Optimization for General-Purpose Multi-Processor System-On-Chips
Linköping University, Department of Computer and Information Science. Linköping University, Department of Electrical Engineering. Linköping University, Department of Computer and Information Science.
2009 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

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) no-error probability, we define mathematical formulas for AET using voting (active replication), rollback-recovery with checkpointing (RRC) and a combination of these (CRV) where bus communication overhead is included. And, for a given multi-processor system-on-chip (MPSoC), we define integer linear programming (ILP) models that minimize the AET including bus communication overhead when: (1) selecting the number of checkpoints when using RRC or a combination where RRC is included, (2) finding the number of processors and job-to-processor assignment when using voting or a combination where voting is used, and (3) defining fault tolerance scheme (voting, RRC or CRV) per job and defining its usage for each job. Experiments demonstrate significant savings in AET.

Place, publisher, year, edition, pages
2009. , 47 p.
Keyword [en]
Fault tolerance, Execution time optimization, Rollback recovery with checkpointing, Active replication, MPSoC
National Category
Computer Science
URN: urn:nbn:se:liu:diva-17705ISRN: LITH-EX-A--09/022--SEOAI: diva2:211473
2009-04-09, Donald Knuth, IDA, 58183 , Linköping, 10:15 (English)
Available from: 2009-04-16 Created: 2009-04-15 Last updated: 2009-04-16Bibliographically approved

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