Opportunistic circuit-switching for energy efficient on-chip networks

Yuan He; Masaaki Kondo

doi:10.1109/VLSI-SoC.2016.7753550

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	https://doi.org/10.1109/VLSI-SoC.2016.7753550
出版ステータス	Published - 2016 11月 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月 26 → 2016 9月 28

出版物シリーズ

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

Conference

Conference	24th Annual IFIP/IEEE International Conference on Very Large Scale Integration, VLSI-SoC 2016
国/地域	Estonia
City	Tallinn
Period	16/9/26 → 16/9/28

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

UN SDG

この成果は、次の持続可能な開発目標に貢献しています

文献へのアクセス

10.1109/VLSI-SoC.2016.7753550

他のファイルとリンク

引用スタイル

He, Y., & Kondo, M. (2016). Opportunistic circuit-switching for energy efficient on-chip networks. In 2016 IFIP/IEEE International Conference on Very Large Scale Integration, VLSI-SoC 2016 Article 7753550 (2016 IFIP/IEEE International Conference on Very Large Scale Integration, VLSI-SoC 2016). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/VLSI-SoC.2016.7753550

Opportunistic circuit-switching for energy efficient on-chip networks. / He, Yuan; Kondo, Masaaki.
2016 IFIP/IEEE International Conference on Very Large Scale Integration, VLSI-SoC 2016. Institute of Electrical and Electronics Engineers Inc., 2016. 7753550 (2016 IFIP/IEEE International Conference on Very Large Scale Integration, VLSI-SoC 2016).

研究成果: Conference contribution

He, Y & Kondo, M 2016, Opportunistic circuit-switching for energy efficient on-chip networks. in 2016 IFIP/IEEE International Conference on Very Large Scale Integration, VLSI-SoC 2016., 7753550, 2016 IFIP/IEEE International Conference on Very Large Scale Integration, VLSI-SoC 2016, Institute of Electrical and Electronics Engineers Inc., 24th Annual IFIP/IEEE International Conference on Very Large Scale Integration, VLSI-SoC 2016, Tallinn, Estonia, 16/9/26. https://doi.org/10.1109/VLSI-SoC.2016.7753550

He Y, Kondo M. Opportunistic circuit-switching for energy efficient on-chip networks. In 2016 IFIP/IEEE International Conference on Very Large Scale Integration, VLSI-SoC 2016. Institute of Electrical and Electronics Engineers Inc. 2016. 7753550. (2016 IFIP/IEEE International Conference on Very Large Scale Integration, VLSI-SoC 2016). doi: 10.1109/VLSI-SoC.2016.7753550

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abstract = "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%.",

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Opportunistic circuit-switching for energy efficient on-chip networks

抄録

出版物シリーズ

Conference

ASJC Scopus subject areas

UN SDG

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