Architecture optimization of aerospace computing systems

Pedar, A and Sarma, VVS (1983) Architecture optimization of aerospace computing systems. IEEE Transactions on Computers, C-32 . pp. 911-922. ISSN 0018-9340

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Abstract

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 resources 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.

Item Type: Journal Article
Additional Information: xA9;1983 Copyright IEEE.
Uncontrolled Keywords: Mathematical models;Computation;Reliability;Computer Simulation;Resources;Optimization;Aerospace;Degradation;Aircraft components;Constraints;Aerospace systems;Airborne/spaceborne computers;Architecture (computers);Computer systems design;Optimization;Real13; time operation; Algorithms; Dynamic programming; Fault tolerance
Subjects: ASTRONAUTICS > Spacecraft Instrumentation & Astrionics
Division/Department: Aerospace Electronics and Controls Division, Aerospace Electronics and Controls Division
Depositing User: Ms. Alphones Mary
Date Deposited: 21 Jun 2005
Last Modified: 24 May 2010 09:39
URI: http://nal-ir.nal.res.in/id/eprint/811

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