Checking Scheme for ABFT Systems Based on Modified PD Graph under an Error Generation/Propagation Model

Choon-Sik PARK  Mineo KANEKO  

Publication
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E82-A   No.6   pp.1002-1008
Publication Date: 1999/06/25
Online ISSN: 
DOI: 
Print ISSN: 0916-8508
Type of Manuscript: Special Section PAPER (Special Section of Papers Selected from 1998 International Technical Conference on Circuits/Systems, Computers and Communications (ITC-CSCC '98))
Category: 
Keyword: 
fault tolerance,  processor-data graph,  checking scheme,  error model,  fault detection,  fault location,  

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Summary: 
This paper treats a fault detection/location of multi-processor systems, and we present a checking scheme based on Modified Processor-Data (MPD) graph with considering an error generation/propagation model for Algorithm-Based Fault Tolerant (ABFT) systems. The error propagation model considered here allows a computation result with multiple (more than one) erroneous inputs to be either erroneous or error-free. Also a basic algorithm for constructing checks for single-fault locatable/two-fault detectable ABFT systems based on the checking scheme is described with design examples.