A reconfigurable cache architecture for energy efficiency

  • Authors:
  • Karthik T. Sundararajan;Timothy M. Jones;Nigel Topham

  • Affiliations:
  • The University of Edinburgh, United Kingdom;The University of Cambridge, United Kingdom;The University of Edinburgh, United Kingdom

  • Venue:
  • Proceedings of the 8th ACM International Conference on Computing Frontiers
  • Year:
  • 2011

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Abstract

On-chip caches often consume a significant fraction of the total processor energy budget. Allowing adaptation to the running workload can significantly lower their energy consumption. In this paper, we present a novel Set and way Management cache Architecture for efficient Run-Time reconfiguration (Smart cache), a cache architecture that allows reconfiguration in both its size and associativity. Results show the energy-delay of the Smart cache is on average 18% better than state-of-the-art reconfiguration architectures.