Title :
A fault-tolerant microcomputer for advanced control: architecture and performability analysis
Author :
Constantinescu, Cristian ; Sandovici, Calin
Author_Institution :
Polytech. Inst. of Bucharest, Romania
Abstract :
The hardware and software architecture of a fault-tolerant microcomputer for advanced control is presented. Use is made of performability as a performance and reliability measure. It is computed by means of the aggregation/decomposition technique with the aid of a numerical algorithm. An analysis is made of the influence of certain types of faults (i.e. permanent, intermittent, and transient) on the system performability. Different reward structures are compared and the effects of global and local repair actions are pointed out. An illustration is given of the influence of spare processing elements
Keywords :
computer architecture; computerised control; fault tolerant computing; microcomputers; advanced control; aggregation/decomposition technique; fault-tolerant microcomputer; hardware architecture; numerical algorithm; performability analysis; reliability measure; software architecture; Automatic control; Availability; Computer architecture; Degradation; Fault tolerance; Microcomputers; Performance analysis; Performance evaluation; Process control; Production;
Conference_Titel :
Real Time Systems Symposium, 1989., Proceedings.
Conference_Location :
Santa Monica, CA
Print_ISBN :
0-8186-2004-8
DOI :
10.1109/REAL.1989.63573
