Opportunistic circuit-switching for energy efficient on-chip networks

Yuan He, Masaaki Kondo

研究成果: Conference contribution

4 被引用数 (Scopus)

抄録

Modern on-chip networks (NoCs) rely on virtual channel (VC) flow control to allow effective utilization of link bandwidth at the cost of more power and longer per-hop latency. Despite many existing optimization techniques for NoCs under VC flow control, we take a further step on questioning its necessity. Our finding is, when the network is not busy, circuit-switching (CS) may already satisfy the performance requirements with much smaller power consumption and shorter per-hop latency. In this paper, we propose to opportunistically enable CS in NoCs under VC flow control. This allows us to effectively reduce the power consumption of NoCs through having less buffering and longer sleep intervals for power gating while retaining CS-like per-hop latency. Our evaluations reveal that this proposal leads to a reduction of network power by up to 70% while cutting the system energy footprint by up to 35%.

本文言語English
ホスト出版物のタイトル2016 IFIP/IEEE International Conference on Very Large Scale Integration, VLSI-SoC 2016
出版社Institute of Electrical and Electronics Engineers Inc.
ISBN(電子版)9781509035618
DOI
出版ステータスPublished - 2016 11 22
外部発表はい
イベント24th Annual IFIP/IEEE International Conference on Very Large Scale Integration, VLSI-SoC 2016 - Tallinn, Estonia
継続期間: 2016 9 262016 9 28

出版物シリーズ

名前2016 IFIP/IEEE International Conference on Very Large Scale Integration, VLSI-SoC 2016

Conference

Conference24th Annual IFIP/IEEE International Conference on Very Large Scale Integration, VLSI-SoC 2016
国/地域Estonia
CityTallinn
Period16/9/2616/9/28

ASJC Scopus subject areas

  • ハードウェアとアーキテクチャ
  • 電子工学および電気工学

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