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Hierarchical Agent Based NoC with DVFS Techniques

Alexander Wei Yin, Liang Guang, Pasi Liljeberg, Pekka Rantala, Jouni Isoaho, Hannu Tenhunen, Hierarchical Agent Based NoC with DVFS Techniques. International Journal of Design, Analysis and Tools for Integrated Circuits and Systems (IJDATICS) 1(1), 32-40, 2011.

Abstract:

Network-on-Chip (NoC) is a promising architec- ture in the many-core on-chip systems. A hierarchical agent based NoC architecture is proposed which enables the NoC to autonomously adjust itself, and provide maximum power efficiency, fault/variation tolerance and system flexibility. Agents are software or hardware components which monitor and control the system at different granularity. Via the joint efforts and interactions of agents at all levels of the architecture, system optimization can be achieved at the runtime. Agent hierarchy, mapping of agents on regular NoC platforms and the function partition among the agents are elaborately discussed.
Runtime power management with various Dynamic Voltage and Frequency Scaling (DVFS) techniques is analyzed on the hierarchical agent based NoC platform. Conventional power monitoring techniques can be flexibly incorporated into the func- tions of specific levels of agents. Network condition is observed by the agents at the runtime, and the power supplies are adjusted at different granularity accordingly. This paper describes the system architectures of two adaptive schemes, with efficient and feasible algorithms presented. Quantitative experiments demonstrate that they achieve superior power efficiency comparing with the basic architecture without any runtime configuration, while different tradeoffs are applied dependent on the monitoring granularity.

BibTeX entry:

@ARTICLE{jYiGuLiRaIsTe10a,
  title = {Hierarchical Agent Based NoC with DVFS Techniques},
  author = {Yin, Alexander Wei and Guang, Liang and Liljeberg, Pasi and Rantala, Pekka and Isoaho, Jouni and Tenhunen, Hannu},
  journal = {International Journal of Design, Analysis and Tools for Integrated Circuits and Systems (IJDATICS)},
  volume = {1},
  number = {1},
  pages = {32-40},
  year = {2011},
  keywords = {Network-on-Chip, power management, Dynamic Voltage and Frequency Scaling},
}

Belongs to TUCS Research Unit(s): Communication Systems (ComSys)

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