HighwayNoC: Approaching Ideal NoC Performance With Dual Data Rate Routers

Ejaz, Ahsen; Papaefstathiou, Vassilis; Sourdis, Ioannis

doi:10.1109/tnet.2020.3034581

Cited by 4 publications

(2 citation statements)

References 28 publications

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“…• DDR and Multiplexing. Double-Data-Rate (DDR) [30], [31] transfers data on both the positive and negative edges of the clock which actually increases the bandwidth. Also, the paper [32] presents a method to decrease the transmission latency by decreasing the link traverse latency into the half cycle.…”

Section: Introductionmentioning

confidence: 99%

LAMP: Load-Balanced Multipath Parallel Transmission in Point-to-Point NoCs

Chen

Luo

et al. 2022

IEEE Trans. Comput.-Aided Des. Integr. Circuits Syst.

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Network-on-Chip (NoC) is an emerging paradigm that is able to connect a significant amount of processing elements (PEs). However, as a distributed sub-system, NoC resources have not been exploited to the fullest. Multipath parallel transmission, which splits one message into multiple parts and sends them simultaneously, shows its efficiency in utilizing NoC resources and further reducing the transmission latency. However, this method is not fully optimized in previous works, especially for emerging point-to-point NoCs due to the following reasons: (i) only limited shortest paths are chosen; (ii) static message splitting strategy without considering NoC utilization state increases contentions;(iii) the optimization of hardware that supports multipath parallel transmission is missing, resulting in additional overheads. Thus, we propose LAMP, a software and hardware collaborated design to efficiently utilize resources and reduce latency in point-to-point NoCs through the load-balanced multipath parallel transmission. Specifically, we propose a reinforcement learning-based algorithm to decide when and how to split messages, and which path should be used according to traffic loads. Also, the temporal and spatial load-balancing algorithms are proposed so that the message size is adjusted properly to utilize NoC resources. Moreover, we revise the hardware design to support multipath parallel transmission efficiently. Extensive experiments show that our algorithm achieves a remarkable performance improvement (+18.0% ∼ +29.9%) when compared with the state-of-the-art dual-path algorithm. Our hardware design decreases power and area consumption by 23.2% and 10.3% over the dual-path hardware.

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Section: Introductionmentioning

confidence: 99%

LAMP: Load-Balanced Multipath Parallel Transmission in Point-to-Point NoCs

Chen

Luo

et al. 2022

IEEE Trans. Comput.-Aided Des. Integr. Circuits Syst.

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show abstract

“…Double-Data-Rate (DDR) [73,74] transfers data on both the positive and negative edges of the clock which actually increases the bandwidth. Also, the paper [75] presents a method to decrease the transmission latency by decreasing the link traverse latency into the half cycle.…”

Section: Ddr and Multiplexingmentioning

confidence: 99%

Hardware-software co-design and optimization for point-to-point network-on-chip based many-core systems

Chen¹

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Minimization in Emerging SMART NoC via Direct and Indirect Routes." in IEEE Transactions on Computers (TC). 2021 The contributions of the co-authors are as follows: I would like to express my sincere appreciation and gratitude to many people for all they have done to support me as a Ph.D. student in the past few years. Currently, the COVID-19 situation is still fluid. But I believe all of us will emerge from it. Firstly, I am deeply indebted to Prof. Weichen Liu, my supervisor, whose outstanding research talents and professional teaching attitudes have encouraged me to begin this challenging but interesting Ph.D. journey. He is always patient, responsible, and extremely wise. Rather than limiting the research topic to a specific area, he has inspired me to find new problems and try creative methods to solve them. He has taught me ways to conduct comprehensive research with careful reasoning and techniques to present novel works with decent examples. It is a great honor to benefit from his personality and diligence. I would like to extend my appreciation to Thesis Advisory Committee (TAC) members: Prof. Xueyan Tang and Dr. Tao Luo. They have supported and encouraged me a lot.

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A router architecture with dual input and dual output channels for Networks-on-Chip

Zhou

Ouyang

et al. 2022

Microprocessors and Microsystems

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HighwayNoC: Approaching Ideal NoC Performance With Dual Data Rate Routers

Cited by 4 publications

References 28 publications

LAMP: Load-Balanced Multipath Parallel Transmission in Point-to-Point NoCs

LAMP: Load-Balanced Multipath Parallel Transmission in Point-to-Point NoCs

Hardware-software co-design and optimization for point-to-point network-on-chip based many-core systems

A router architecture with dual input and dual output channels for Networks-on-Chip

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