Exploring concentration and channel slicing in on-chip network router

Prabhat Kumar*, Yan Pan, John Kim, Gokhan Memik, Alok Nidhi Choudhary

*Corresponding author for this work

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

45 Scopus citations

Abstract

Sharing on-chip network resources efficiently is critical in the design of a cost-efficient network on-chip (NoC). Concentration has been proposed for on-chip networks but the trade-off in concentration implementation and performance has not been well understood. In this paper, we describe cost-efficient implementations of concentration and show how external concentration provides a significant reduction in complexity (47% and 36% reduction in area and energy, respectively) compared to previous assumed integrated (high-radix) concentration while degrading overall performance by only 10%. Hybrid implementations of concentration is also presented which provide additional tradeoff between complexity and performance. To further reduce the cost of NoC, we describe how channel slicing can be used together with concentration. We propose virtual concentration which further reduces the complexity - saving area and energy by 69% and 32% compared to baseline mesh and 88% and 35% over baseline concentrated mesh.

Original languageEnglish (US)
Title of host publicationProceedings - 2009 3rd ACM/IEEE International Symposium on Networks-on-Chip, NoCS 2009
Pages276-285
Number of pages10
DOIs
StatePublished - 2009
Event2009 3rd ACM/IEEE International Symposium on Networks-on-Chip, NoCS 2009 - San Diego, CA, United States
Duration: May 10 2009May 13 2009

Publication series

NameProceedings - 2009 3rd ACM/IEEE International Symposium on Networks-on-Chip, NoCS 2009

Other

Other2009 3rd ACM/IEEE International Symposium on Networks-on-Chip, NoCS 2009
Country/TerritoryUnited States
CitySan Diego, CA
Period5/10/095/13/09

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Hardware and Architecture
  • Electrical and Electronic Engineering

Fingerprint

Dive into the research topics of 'Exploring concentration and channel slicing in on-chip network router'. Together they form a unique fingerprint.

Cite this