The Comparison Approach to Multiprocessor Fault Diagnosis
IEEE Transactions on Computers
The consensus problem in fault-tolerant computing
ACM Computing Surveys (CSUR)
Probabilistic system-level fault diagnostic algorithms for multiprocessors
Parallel Computing - Special issue: distributed and parallel systems: environments and tools
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This paper presents a novel approach for solving the probabilistic diagnosis problem in multiprocessor systems. The main idea of the algorithm is based on the reformulation of the diagnostic procedure as a P-graph model. The same, well-elaborated mathematical paxadigm--originally used to model material flow--can be applied in our approach to model information flow. This idea is illustrated by deriving a maximum likelihood diagnostic decision procedure. The diagnostic accuracy of the solution is considered on the basis of simulation measurements, and a method of constructing a general framework for different aspects of a complex problem is demonstrated with the use of P-graph models.