The search functionality is under construction.
The search functionality is under construction.

Hybrid, Asymmetric and Reconfigurable Input Unit Designs for Energy-Efficient On-Chip Networks

Xiaoman LIU, Yujie GAO, Yuan HE, Xiaohan YUE, Haiyan JIANG, Xibo WANG

  • Full Text Views

    4

  • Cite this

Summary :

The complexity and scale of Networks-on-Chip (NoCs) are growing as more processing elements and memory devices are implemented on chips. However, under strict power budgets, it is also critical to lower the power consumption of NoCs for the sake of energy efficiency. In this paper, we therefore present three novel input unit designs for on-chip routers attempting to shrink their power consumption while still conserving the network performance. The key idea behind our designs is to organize buffers in the input units with characteristics of the network traffic in mind; as in our observations, only a small portion of the network traffic are long packets (composed of multiple flits), which means, it is fair to implement hybrid, asymmetric and reconfigurable buffers so that they are mainly targeting at short packets (only having a single flit), hence the smaller power consumption and area overhead. Evaluations show that our hybrid, asymmetric and reconfigurable input unit designs can achieve an average reduction of energy consumption per flit by 45%, 52.3% and 56.2% under 93.6% (for hybrid designs) and 66.3% (for asymmetric and reconfigurable designs) of the original router area, respectively. Meanwhile, we only observe minor degradation in network latency (ranging from 18.4% to 1.5%, on average) with our proposals.

Publication
IEICE TRANSACTIONS on Electronics Vol.E106-C No.10 pp.570-579
Publication Date
2023/10/01
Publicized
2023/04/10
Online ISSN
1745-1353
DOI
10.1587/transele.2022CTP0005
Type of Manuscript
Special Section PAPER (Special Section on Analog Circuits and Their Application Technologies)
Category

Authors

Xiaoman LIU
  Shenyang University of Technology
Yujie GAO
  Shenyang University of Technology
Yuan HE
  Shenyang University of Technology,Keio University
Xiaohan YUE
  Shenyang University of Technology
Haiyan JIANG
  Shenyang University of Technology
Xibo WANG
  Shenyang University of Technology

Keyword