A monitored NoC with runtime path adaptation

Edson Moreno, Thais Webber, Cesar Marcon, Fernando Moraes, Ney Calazans

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Networks-on-chip (NoCs) are already a common choice of communication infrastructure for complex systems-on-chip (SoCs) containing a large number of processing resources and with critical communication requirements. A NoC provides several advantages, such as higher scalability, efficient energy management, higher bandwidth and lower average latency, when compared to bus-based systems. Experiments with applications running on NoCs with more than 10% of bandwidth usage show that most of a typical message latency refers to buffered packets waiting to enter the NoC, while the latency portion that depends on packets traversing the NoC is often negligible. This work proposes a Monitored NoC called MoNoC, which is based on a monitoring mechanism and on the exchange of high-priority control packets. Practical experiments show that our fast adaptation method enables transmitting packets with smaller latencies, by using non-congested NoC areas, which reduces the most significant part of message latency.

Original languageEnglish
Title of host publication2014 IEEE International Symposium on Circuits and Systems, ISCAS 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1965-1968
Number of pages4
ISBN (Print)9781479934324
DOIs
Publication statusPublished - 2014
Event2014 IEEE International Symposium on Circuits and Systems, ISCAS 2014 - Melbourne, VIC, Australia
Duration: 1 Jun 20145 Jun 2014

Publication series

NameProceedings - IEEE International Symposium on Circuits and Systems
ISSN (Print)0271-4310

Conference

Conference2014 IEEE International Symposium on Circuits and Systems, ISCAS 2014
Country/TerritoryAustralia
CityMelbourne, VIC
Period1/06/145/06/14

Keywords

  • adaptive control
  • monitoring
  • NoC
  • routing methods

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