Reliability Modelling for Fault-Tolerant Parallel Processor.

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.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1987
Accession Number
ADA185867

Entities

People

  • Edward I. Gjermundsen

Organizations

  • Air Force Institute of Technology

Tags

Communities of Interest

  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • Aeronautics
  • Air Force
  • Astronautics
  • Combinatorial Analysis
  • Computer Architecture
  • Failure Mode And Effect Analysis
  • Markov Models
  • Massachusetts
  • Models
  • Parallel Processing
  • Parallel Processors
  • Probability
  • Reliability
  • Space Systems
  • Spacecraft
  • Topology
  • United States

Fields of Study

  • Engineering

Readers

  • Applied Combinatorial Optimization and Logic Circuit Design.
  • Database Systems and Applications
  • Software Engineering.

Technology Areas

  • Space