Reducing network-on-chip energy consumption through spatial locality speculation

  title={Reducing network-on-chip energy consumption through spatial locality speculation},
  author={Hyungjun Kim and Pritha Ghoshal and Boris Grot and Paul V. Gratz and Daniel A. Jim{\'e}nez},
  journal={Proceedings of the Fifth ACM/IEEE International Symposium},
As processor chips become increasingly parallel, an efficient communication substrate is critical for meeting performance and energy targets. In this work, we target the root cause of network energy consumption through techniques that reduce link and router-level switching activity. We specifically focus on memory subsystem traffic, as it comprises the bulk of NoC load in a CMP. By transmitting only the flits that contain words predicted useful using a novel spatial locality predictor, our… CONTINUE READING
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