Skip the Analysis: Self-optimising Networks-on-Chip (Invited paper)

SJ Hollis, CR Jackson

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)


In this paper, we investigate how the need for static analysis of data flowing through Networks-on-Chip in many-core and SoC systems may be eliminated, yet still allow network optimisations to improve runtime behaviour. Our approach is to replace a priori static analysis with run-time optimisations, taking place in the network itself. To do this, we introduce our self- optimising NoC topology: Skip-links, which inserts long-range links into a standard mesh. We evaluate the performance of Skip-links at run-time against the optimal configuration, as determined by static analysis, for both the transpose and tornado traffic patterns. We show that the local decision-making algorithm employed by Skip-links comes close to optimum, carrying 70% of theoretical maximum traffic flows for tornado traffic, and reducing average hop counts by 18% for transpose traffic.
Translated title of the contributionSkip the Analysis: Self-optimising Networks-on-Chip (Invited paper)
Original languageEnglish
Title of host publicationInternational Symposium on Electronic System Design (ISED)
Publication statusPublished - Dec 2010

Bibliographical note

Conference Proceedings/Title of Journal: Proc. International Symposium on Electronic System Design (ISED)
Conference Organiser: IEEE


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