Presentation 2011-10-25
Simultaneous Optimization of Cache Way Selection and Code Placement for Reducing the Memory Access Energy Consumption
Junshi TAKATA, Tohru ISHIHARA, Koji INOUE,
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Abstract(in English) The paper proposes a technique which simultaneously finds the optimal cache way allocation and code placement for given multiple tasks running on a single core processor. It reduces the energy consumption in a set-associative cache by activating only a single cache way at a time and deactivating the remaining cache ways. The technique also reduces the number of cache misses by changing the code placement in a main memory, which results in a reduction of the energy consumption in the main memory as well as the reduction of total execution time. Experiments using a commercial embedded processor demonstrate that the technique reduces the total energy consumption in the target processor system by 17% at the best case compared to the energy of the system which does not apply our technique.
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Keyword(in English) embedded system / multi task / cache memory
Paper # SIP2011-76,ICD2011-79,IE2011-75
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Conference Date 2011/10/17(1days)
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Registration To Integrated Circuits and Devices (ICD)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Simultaneous Optimization of Cache Way Selection and Code Placement for Reducing the Memory Access Energy Consumption
Sub Title (in English)
Keyword(1) embedded system
Keyword(2) multi task
Keyword(3) cache memory
1st Author's Name Junshi TAKATA
1st Author's Affiliation Graduate School of Information Science and Electrical Engineering, Kyushu University()
2nd Author's Name Tohru ISHIHARA
2nd Author's Affiliation Graduate School of Informatics, Kyoto University
3rd Author's Name Koji INOUE
3rd Author's Affiliation Faculty of Information Science and Electrical Engineering, Kyushu University
Date 2011-10-25
Paper # SIP2011-76,ICD2011-79,IE2011-75
Volume (vol) vol.111
Number (no) 258
Page pp.pp.-
#Pages 6
Date of Issue