An energy-efficient virtual channel power-gating mechanism for on-chip networks

Mirhosseini, A ; Sharif University of Technology | 2015

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  1. Type of Document: Article
  2. DOI: 10.7873/DATE.2015.0472
  3. Publisher: Institute of Electrical and Electronics Engineers Inc , 2015
  4. Abstract:
  5. Power-gating is a promising method for reducing the leakage power of digital systems. In this paper, we propose a novel power-gating scheme for virtual channels in on-chip networks that uses an adaptive method to dynamically adjust the number of active VCs based on the on-chip traffic characteristics. Since virtual channels are used to provide higher throughput under high traffic loads, our method sets the number of virtual channel at each port selectively based on the workload demand, thereby do not negatively affect performance. Evaluation results show that by using this scheme, about 40% average reduction in static power consumption can be achieved with negligible performance overhead
  6. Keywords:
  7. Communication channels (information theory) ; Energy efficiency ; Leakage currents ; Multiprocessing systems ; Adaptive methods ; Energy efficient ; Evaluation results ; On-chip networks ; On-chip traffic ; Power gating schemes ; Static power consumption ; Virtual channels ; Embedded systems
  8. Source: Proceedings -Design, Automation and Test in Europe, DATE, 9 March 2015 through 13 March 2015 ; Volume 2015-April , March , 2015 , Pages 1527-1532 ; 15301591 (ISSN) ; 9783981537048 (ISBN)
  9. URL: http://ieeexplore.ieee.org/document/7092631