1 Department of Informatics and Mathematical Modeling, Technical University of Denmark2 Computer Science and Engineering, Department of Informatics and Mathematical Modeling, Technical University of Denmark3 Embedded Systems Engineering, Department of Informatics and Mathematical Modeling, Technical University of Denmark4 Embedded Intelligent Solutions (EIS) By Semcon AB5 Copenhagen Center for Health Technology, Center, Technical University of Denmark6 Linköping University
In this article, we propose a strategy for the synthesis of fault-tolerant schedules and for the mapping of fault-tolerant applications. Our techniques handle transparency/performance trade-offs and use the faultoccurrence information to reduce the overhead due to fault tolerance. Processes and messages are statically scheduled, and we use process reexecution for recovering from multiple transient faults. We propose a finegrained transparent recovery, where the property of transparency can be selectively applied to processes and messages. Transparency hides the recovery actions in a selected part of the application so that they do not affect the schedule of other processes and messages. While leading to longer schedules, transparent recovery has the advantage of both improved debuggability and less memory needed to store the faulttolerant schedules.
A C M Transactions on Embedded Computing Systems, 2012, Vol 11, Issue 3