Simultaneous consideration of both performance and reliability issues is important in the choice of computer architectures for real-time aerospace applications. One of the requirements for such a fault-tolerant computer system is the characteristic of graceful degradation. A shared and replicated resource computing system represents such an architecture. In this paper, a combinatorial model is used for the evaluation of the instruction execution rate of a degradable, replicated resources computing system such as a modular multiprocessor system. Next, a method is presented to evaluate the computation reliability of such a system utilizing a reliability graph model and the instruction execution rate. Finally, this computation reliability measure, which simultaneously describes both performance and reliability, is applied as a constraint in an architecture optimization model for such computing systems.


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    Title :

    Architecture optimization of aerospace computing systems


    Additional title:

    Architektur-Optimierung von Luft- und Raumfahrt-Rechnersystemen


    Contributors:
    Pedar, A. (author) / Sarma, V.V. (author)

    Published in:

    Publication date :

    1983


    Size :

    12 Seiten, 6 Bilder, 6 Tabellen, 20 Quellen



    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English






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