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Low-cost fault-tolerance in barrier synchronizations

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2 Author(s)
Kulkarni, S.S. ; Dept. of Comput. & Inf. Sci., Ohio State Univ., Columbus, OH, USA ; Arora, A.

We show how fault-tolerance can be effectively added to several types of faults in program computations that use barrier synchronization. We divide the faults that occur in practice into two classes, detectable and undetectable, and design a fully distributed program that tolerates the faults in both classes. Our program guarantees that every barrier is executed correctly even if detectable faults occur, and that eventually every barrier is executed correctly even if undetectable faults occur. Via analytical as well as simulation results we show that the cost of adding fault-tolerance is low, in part by comparing the times required by our program with that required by the corresponding fault-intolerant counterpart

Published in:

Parallel Processing, 1998. Proceedings. 1998 International Conference on

Date of Conference:

10-14 Aug 1998