Co-design of channel buffers and crossbar organizations in NoCs architectures

Avinash Kodi, Randy Morris, Dominic Ditomaso, Ashwini Sarathy, Ahmed Louri

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

6 Scopus citations

Abstract

Network-on-Chips (NoCs) have emerged as a scalable solution to the wire delay constraints, thereby providing a high-performance communication fabric for future multicores. Research has shown that power, area and performance of Network-on-Chips (NoCs) architecture are tightly integrated with the design and optimization of the link and router (buffer and crossbar). Recent work has shown that adaptive channel buffers (on-link storage) can considerably reduce power consumption and area overhead by reducing or replacing the power hungry router buffers. However, channel buffer design can lead to Head-of-Line (HoL) blocking which eventually reduces the throughput of the network. In this paper, we explore the design space of organizing channel buffers and router crossbars to improve the performance (latency, throughput) while reducing the power consumption. Our proposed designs analyze the power-performance-area trade-off in designing channel buffers for NoC architectures while overcoming HoL blocking through crossbar optimizations. Our simulation and NoC design synthesis shows that for a 8 8 mesh architecture, we can reduce the power consumption by 25-40%, improve performance by 10-25% while occupying 4-13% more area when compared to the baseline architecture.

Original languageEnglish (US)
Title of host publication2011 IEEE/ACM International Conference on Computer-Aided Design, ICCAD 2011
Pages219-226
Number of pages8
DOIs
StatePublished - Dec 1 2011
Event2011 IEEE/ACM International Conference on Computer-Aided Design, ICCAD 2011 - San Jose, CA, United States
Duration: Nov 7 2011Nov 10 2011

Publication series

NameIEEE/ACM International Conference on Computer-Aided Design, Digest of Technical Papers, ICCAD
ISSN (Print)1092-3152

Other

Other2011 IEEE/ACM International Conference on Computer-Aided Design, ICCAD 2011
CountryUnited States
CitySan Jose, CA
Period11/7/1111/10/11

ASJC Scopus subject areas

  • Software
  • Computer Science Applications
  • Computer Graphics and Computer-Aided Design

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    Kodi, A., Morris, R., Ditomaso, D., Sarathy, A., & Louri, A. (2011). Co-design of channel buffers and crossbar organizations in NoCs architectures. In 2011 IEEE/ACM International Conference on Computer-Aided Design, ICCAD 2011 (pp. 219-226). [6105329] (IEEE/ACM International Conference on Computer-Aided Design, Digest of Technical Papers, ICCAD). https://doi.org/10.1109/ICCAD.2011.6105329