Accession Number : ADA185867

Title :   Reliability Modelling for Fault-Tolerant Parallel Processor.

Descriptive Note : Master's thesis,

Corporate Author : AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH

Personal Author(s) : Gjermundsen, Edward I

PDF Url : ADA185867

Report Date : Jan 1987

Pagination or Media Count : 101

Abstract : An architectural configuration for a Fault Tolerant Parallel Processor (FTPP) is defined to meet a space system reliability and throughput requirement. The FTPP utilizes a flexible architecture that consists of a set of interconnected clusters, each of which consists of a set of interconnected processors. FTPP architectural and redundancy strategies are perturbed to define a more reliable system, and combinatorial reliability models are developed to analyze these perturbations. The perturbations examined include changes to the cluster architecture, the use of redundant clusters, the redistribution fo tasks among clusters, and three cluster interconnection schemes: fully linked, centrally linked, and singly linked. The results of these analyses are used to define relationships between FTPP reliability, throughput, and architecture; which should be useful to a system-designer attempting to meet a specific application requirement. Keywords: Real time control; Space systems; Computer applications.

Descriptors :   *FAULT TOLERANT COMPUTING, *COMPUTER ARCHITECTURE, *DIGITAL COMPUTERS, *PARALLEL PROCESSORS, *ELECTRONICS, *MATHEMATICAL MODELS, *CIRCUIT INTERCONNECTIONS, COMBINATORIAL ANALYSIS, CONTROL, MODELS, PERTURBATIONS, REAL TIME, REDUNDANCY, RELIABILITY, REQUIREMENTS, SPACE SYSTEMS, STRATEGY, THROUGHPUT, TOLERANCE, CLUSTERING, SPACE SYSTEMS, THROUGHPUT

Subject Categories : Computer Hardware

Distribution Statement : APPROVED FOR PUBLIC RELEASE