A Fine-grain Dynamic Sleep Control Scheme in MIPS R3000

Naomi Seki, Lei Zhao, Jo Kei, Daisuke Ikebuchi, Yu Kojima, Yohei Hasegawa, Hideharu Amano, Kashima Toshihiro Kashima, Seidai Takeda, Toshiaki Shirai, Mitustaka Nakata, Kimiyoshi Usami, Tetsuya Sunata, Jun Kanai, Mitaro Namiki, Masaaki Kondo, Hiroshi Nakamura

Research output: Chapter in Book/Report/Conference proceedingConference contribution

34 Citations (Scopus)

Abstract

A fine-grain dynamic power gating is proposed for saving the leakage power in MIPS R3000 by sleep control and applied to a processor pipeline. An execution unit is divided into four small units: multiplier, divider, shifter and other (CLU). The power of each unit is cut off dynamically, based on the operation. We tape-outed the prototype chip Geyser-0, which provides an R3000 Core with the power reduction technique, 16 KB caches and Translation Lookaside Buffer (TLB) using 90 nm CMOS technology. The evaluation results of four benchmark programs for embedded applications show that 47% of the leakage power is reduced on average with 41% area overhead.

Original languageEnglish
Title of host publication26th IEEE International Conference on Computer Design 2008, ICCD
Pages612-617
Number of pages6
DOIs
Publication statusPublished - 2008 Dec 1
Event26th IEEE International Conference on Computer Design 2008, ICCD - Lake Tahoe, CA, United States
Duration: 2008 Oct 122008 Oct 15

Publication series

Name26th IEEE International Conference on Computer Design 2008, ICCD

Conference

Conference26th IEEE International Conference on Computer Design 2008, ICCD
CountryUnited States
CityLake Tahoe, CA
Period08/10/1208/10/15

ASJC Scopus subject areas

  • Hardware and Architecture
  • Electrical and Electronic Engineering

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    Seki, N., Zhao, L., Kei, J., Ikebuchi, D., Kojima, Y., Hasegawa, Y., Amano, H., Toshihiro Kashima, K., Takeda, S., Shirai, T., Nakata, M., Usami, K., Sunata, T., Kanai, J., Namiki, M., Kondo, M., & Nakamura, H. (2008). A Fine-grain Dynamic Sleep Control Scheme in MIPS R3000. In 26th IEEE International Conference on Computer Design 2008, ICCD (pp. 612-617). [4751924] (26th IEEE International Conference on Computer Design 2008, ICCD). https://doi.org/10.1109/ICCD.2008.4751924