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IEICE TRANSACTIONS on Fundamentals

High Performance Virtual Channel Based Fully Adaptive 3D NoC Routing for Congestion and Thermal Problem

Xin JIANG, Xiangyang LEI, Lian ZENG, Takahiro WATANABE

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Summary :

Recent Network on Chip (NoC) design must take the thermal issue into consideration due to its great impact on the network performance and reliability, especially for 3D NoC. In this work, we design a virtual channel based fully adaptive routing algorithm for the runtime 3D NoC thermal-aware management. To improve the network throughput and latency, we use two virtual channels for each horizontal direction and design a routing function which can not only avoid deadlock and livelock, but also ensure high adaptivity and routability in the throttled network. For path selection, we design a strategy that takes priority to the distance, but also considers path diversity and traffic state. For throttling information collection, instead of transmitting the topology information of the whole network, we use a 12 bits register to reserve the router state for one hop away, which saves the hardware cost largely and decreases the network latency. In the experiments, we test our proposed routing algorithm in different states with different sizes, and the proposed algorithm shows better network latency and throughput with low power compared with traditional algorithms.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E100-A No.11 pp.2379-2391
Publication Date
2017/11/01
Publicized
Online ISSN
1745-1337
DOI
10.1587/transfun.E100.A.2379
Type of Manuscript
PAPER
Category
VLSI Design Technology and CAD

Authors

Xin JIANG
  Waseda University
Xiangyang LEI
  Waseda University
Lian ZENG
  Waseda University
Takahiro WATANABE
  Waseda University

Keyword