Paper Info
Title
Performance estimation of virtual duplex systems on simultaneous multithreaded processors
Abstract
Summary form only given. Virtual duplex systems provide detection of transient as well as most permanent hardware faults by executing two versions of a program on a single processor in a time-shared manner. Previous studies on virtual duplex systems have focussed on either improving fault coverage or reducing overhead. We build upon this work and investigate the positive influence of an underlying processor architecture that supports parallelism in the form of multiple threads in hardware. Such processor architectures are just entering the market, with a die area only slightly larger than that of a conventional processor. A performance prediction shows that those processors allow faster fault detection than conventional processors of the same speed. Moreover, the parallelism can be utilized for a recovery that extends the concept of virtual duplex systems. Additionally, we present a technique that further increases the above mentioned gain by using prediction of the faulty version in a manner similar to branch prediction.
Year
DOI
Venue
2004
10.1109/IPDPS.2004.1303241
IPDPS
Keywords
Field
DocType
fault diagnosis,multi-threading,multiprocessing systems,parallel architectures,performance evaluation,fault coverage,hardware faults,multithreaded processors,performance estimation,processor architecture,time-shared manner,virtual duplex systems
Multithreading,Fault coverage,Fault detection and isolation,Computer science,Parallel computing,Thread (computing),Redundancy (engineering),Performance prediction,Branch predictor,Distributed computing,Embedded system,Microarchitecture
Conference
ISBN
Citations 
PageRank 
0-7695-2132-0
1
0.44
References 
Authors
6
3
Name
Order
Citations
PageRank
Bernhard Fechner17812.18
Jörg Keller210618.40
Peter Sobe34610.76