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Author Wu, Xiaowen ♦ Xu, Jiang ♦ Ye, Yaoyao ♦ Wang, Zhehui ♦ Nikdast, Mahdi ♦ Wang, Xuan
Source ACM Digital Library
Content type Text
Publisher Association for Computing Machinery (ACM)
File Format PDF
Copyright Year ©2014
Language English
Subject Domain (in DDC) Computer science, information & general works ♦ Data processing & computer science
Subject Keyword Optical network-on-chip ♦ Chip multiprocessor(CMP) ♦ Silicon photonics
Abstract Chip multiprocessor (CMP) is becoming an attractive platform for applications seeking both high performance and high energy efficiency. In large-scale CMPs, the communication efficiency among cores is crucial for the overall system performance and energy consumption. In this article, we propose a ring-based optical network-on-chip, called SUOR, to fulfill the communication requirement of CMPs. SUOR effectively explores the distinctive properties of optical signals and photonic devices, and dynamically partitions each data channel into multiple sections. Each section can be utilized independently to boost performance as well as reduce energy consumption. We develop a set of distributed control protocols and algorithms for SUOR, but physically allocate the corresponding cluster agents close to each other to benefit from the strengths of optical interconnects at long distances as well as electrical interconnects at short distances. Simulation results show that SUOR outperforms the alternative optical networks under a wide range of traffic patterns. For example, compared with MWSR design, SUOR achieves 2.58× throughput as well as saves 64% energy consumption on average in a 256-core CMP. Compared with MWMR design, SUOR achieves 1.52× throughput and reduces 73% energy consumption on average.
ISSN 15504832
Age Range 18 to 22 years ♦ above 22 year
Educational Use Research
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2014-06-02
Publisher Place New York
e-ISSN 15504840
Journal ACM Journal on Emerging Technologies in Computing Systems (JETC)
Volume Number 10
Issue Number 4
Page Count 25
Starting Page 1
Ending Page 25

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Source: ACM Digital Library