Evaluation of fault-tolerant multiprocessor systems for high assurance applications (Articolo in rivista)

Type
Label
  • Evaluation of fault-tolerant multiprocessor systems for high assurance applications (Articolo in rivista) (literal)
Anno
  • 2001-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1093/comjnl/44.6.544 (literal)
Alternative label
  • Grandoni F.; Chiaradonna S.; Di Giandomenico F.; Bondavalli A. (2001)
    Evaluation of fault-tolerant multiprocessor systems for high assurance applications
    in Computer journal (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Grandoni F.; Chiaradonna S.; Di Giandomenico F.; Bondavalli A. (literal)
Pagina inizio
  • 544 (literal)
Pagina fine
  • 556 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 44 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note
  • In: The Computer Journal, vol. 44 n. 6 (2001), 544-555. (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 6 (literal)
Note
  • PuMa (literal)
  • Scopu (literal)
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • CNR-IEI, Università di Firenze (literal)
Titolo
  • Evaluation of fault-tolerant multiprocessor systems for high assurance applications (literal)
Abstract
  • In designing high assurance systems, the dependability goals are achieved through the adoption of several fault-tolerance techniques. Unfortunately, their combined effect on the system cannot be, in the general case, derived by straightforward composition of the stand-alone component's analysis, because of mutual dependence of their controlling parameters. In this paper the assessment of overall system dependability induced by such integrated fault-tolerance organization is carried out through a stochastic simulation approach. To this purpose, a few fault-tolerant multiprocessor architectures, based on the integrated usage of standard error-processing structures with a recently-proposed diagnostic mechanism, called ?-count, are selected and evaluated. The diagnostic mechanism gets its input (error signals) from the error-processing mechanism, whose behaviour is in turn influenced by the rapidity and correctness with which ?-count identifies permanently/intermittently faulty processors. The choice of the basic fault-tolerance mechanisms to adopt, as well as the reference-system architecture, has been driven by the characteristics of the envisaged target applications: mainly, stringent dependability requirements, to be traded with adequate levels of performance and cost. The analysis has focused on performability, which is an appropriate measure to evaluate whether a certain design is 'better' than another under dependability and performance point of view. (literal)
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