On Self-Diagnosable Multiprocessor Systems: Diagnosis by the Comparison Approach

  • Authors:
  • Abhijit Sengupta;Anton T. Dahbura

  • Affiliations:
  • -;-

  • Venue:
  • IEEE Transactions on Computers
  • Year:
  • 1992

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Abstract

The diagnosability and diagnosis problems for a model introduced by J. Maeng and M. Malek (1981) of a self-diagnosable multiprocessor system where processors compare the results of tasks performed by other processors in the system are analyzed. A set of criteria is given for determining whether the faulty processors in the system can be diagnosed on the basis of the comparisons, and a polynomial-time algorithm is presented to identify the faulty units of such a system on the basis of the comparison results when the system is known to be diagnosable.