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Minimizing the system impact of router faults by means of reconfiguration and adaptive routing
KTH, School of Information and Communication Technology (ICT), Electronics, Integrated devices and circuits. University of Turku, Finland.
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2017 (English)In: Microprocessors and microsystems, ISSN 0141-9331, E-ISSN 1872-9436, Vol. 51, p. 252-263Article in journal (Refereed) Published
Abstract [en]

To tolerate faults in Networks-on-Chip (NoC), routers are often disconnected from the NoC, which affects the system integrity. This is because cores connected to the disabled routers cannot be accessed from the network, resulting in loss of function and performance. We propose E-Rescuer, a technique offering a reconfigurable router architecture and a fault-tolerant routing algorithm. By taking advantage of bypassing channels, the reconfigurable router architecture maintains the connection between the cores and the network regardless of the router status. The routing algorithm allows the core to access the network when the local router is disabled.Our analysis and experiments show that the proposed technique provides 100% packet delivery in 100%, 92.56%, and 83.25% of patterns when 1, 2 and 3 routers are faulty, respectively. Moreover, the throughput increases up to 80%, 46% and 33% in comparison with FTLR, HiPFaR, and CoreRescuer, respectively.

Place, publisher, year, edition, pages
Elsevier, 2017. Vol. 51, p. 252-263
Keywords [en]
Adaptive routing algorithm, Bypassing channels, Reconfigurable router architecture
National Category
Communication Systems
Identifiers
URN: urn:nbn:se:kth:diva-209606DOI: 10.1016/j.micpro.2017.02.004Scopus ID: 2-s2.0-85019109109OAI: oai:DiVA.org:kth-209606DiVA, id: diva2:1113262
Note

QC 20170621

Available from: 2017-06-21 Created: 2017-06-21 Last updated: 2017-06-21Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
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  • vancouver
  • Other style
More styles
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  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
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