Presentation 2012-08-02
Comparison between power gating and DVFS from the view point of energy efficiency
Atsuki Inoue, Eiji Yoshida,
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Abstract(in English) To increase the energy efficiency of modern LSIs, supply voltage control techniques (power gating and dynamic voltage frequency scaling) have been widely used and the energy efficiency of fine grain temporal controls in both cases have been discussed. In this paper, we applied dead time constraint, compared the energy efficiencies and formulated the boundary condition that power gating is more energy efficient than DVFS. The formulation is applied to discuss the future trend of energy efficiency using ITRS roadmap and it was found that DVFS would be still effective with high-performance technology, however, it will not be effective with low-operating-power technology.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Power gating / DVFS / Energy gain / DIBL / ITRS
Paper # SDM2012-66,ICD2012-34
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Conference Date 2012/7/26(1days)
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Registration To Integrated Circuits and Devices (ICD)
Language ENG
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Comparison between power gating and DVFS from the view point of energy efficiency
Sub Title (in English)
Keyword(1) Power gating
Keyword(2) DVFS
Keyword(3) Energy gain
Keyword(4) DIBL
Keyword(5) ITRS
1st Author's Name Atsuki Inoue
1st Author's Affiliation Fujitsu Laboratories Ltd., Platform Technology Lab.()
2nd Author's Name Eiji Yoshida
2nd Author's Affiliation Fujitsu Laboratories Ltd., Platform Technology Lab.
Date 2012-08-02
Paper # SDM2012-66,ICD2012-34
Volume (vol) vol.112
Number (no) 170
Page pp.pp.-
#Pages 5
Date of Issue