Diagnosable Evaluation of Enhanced Optical Transpose Interconnection System Networks

  • Chang-Hsiung Tsai
  • Jheng-Cheng Chen
Conference paper
Part of the Smart Innovation, Systems and Technologies book series (SIST, volume 20)


The process of identifying faulty processors is called the diagnosis of the system. Several models of diagnosis have been proposed and the most popular one is the PMC (Preparata, Metze and Chen) diagnostic model proposed by Preparata et al. in 1967. The precise strategy is correctly to identify all faulty processors and the pessimistic strategy is to isolate all faulty processors within a set containing one fault-free processor at most. For a multiprocessor system, its diagnosability is critical to measure the performance. The enhanced optical transpose interconnection system, enhanced OTIS, network has important applications in parallel processing. In this network architecture, n 2 processors are divided n groups where there are n processors, and processors in the same group are connected by electronic links, simultaneously, these groups are connected by optical links. In particular, an enhanced OTIS network is regular if its base graph G is regular. In this paper, we discuss the fault diagnosis issue of the enhanced OTIS network including precise strategy and pessimistic strategy under the PMC diagnostic model.


Interconnection network Reliability System-level diagnosis Pessimistic strategy enhanced OTIS 


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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  1. 1.Department of Computer Science and Information EngineeringNational Dong Hwa UniversityHualienTaiwan , R.O.C.

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