Presentation 2019-07-24
A Case for Power Shifting on Hybrid Memory Based Systems
Eishi Arima, Toshihiro Hanawa, Carsten Trinitis, Martin Schulz,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) High Performance Computing (HPC) systems are facing severe limitations in both power and memory bandwidth/capacity. By now, these limitations have been addressed individually: to improve performance un- der a strict power constraint, power shifting, which allocates more power budget on the bottleneck component, is a promising approach; for memory bandwidth/capacity increase, the industry has begun to support hybrid main memory designs that comprise multiple different technologies including emerging memories (e.g., 3D stacked DRAM or NVRAM) in one compute node. However, few works look at the combination of both trends. This work explic- itly targets power managements of hybrid memory based HPC systems and make a case for power shifting among components, i.e., CPUs, DRAMs, and NVRAMs. Through our preliminary evaluation, we gained the following insight: the performance bottleneck component changes in accordance with the footprint (or data) size, which then also changes the optimal power budget settings. This result motivates us to develop a software framework toward footprint-aware power shifting.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Hybrid Main MemoriesPower Shifting
Paper # CPSY2019-20,DC2019-20
Date of Issue 2019-07-17 (CPSY, DC)

Conference Information
Committee CPSY / DC / IPSJ-ARC
Conference Date 2019/7/24(3days)
Place (in Japanese) (See Japanese page)
Place (in English) Kitami Civic Hall
Topics (in Japanese) (See Japanese page)
Topics (in English) Parallel, Distributed and Cooperative Processing Systems and Dependable Computing
Chair Hidetsugu Irie(Univ. of Tokyo) / Satoshi Fukumoto(Tokyo Metropolitan Univ.) / Hiroshi Inoue(Kyushu Univ.)
Vice Chair Michihiro Koibuchi(NII) / Kota Nakajima(Fujitsu Lab.) / Hiroshi Takahashi(Ehime Univ.)
Secretary Michihiro Koibuchi(Nagoya Inst. of Tech.) / Kota Nakajima(Hokkaido Univ.) / Hiroshi Takahashi(Nihon Univ.) / (Chiba Univ.)
Assistant Eiji Arima(Univ. of Tokyo) / Shugo Ogawa(Hitachi)

Paper Information
Registration To Technical Committee on Computer Systems / Technical Committee on Dependable Computing / Special Interest Group on System Architecture
Language ENG-JTITLE
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A Case for Power Shifting on Hybrid Memory Based Systems
Sub Title (in English)
Keyword(1) Hybrid Main MemoriesPower Shifting
1st Author's Name Eishi Arima
1st Author's Affiliation The University of Tokyo(U. Tokyo)
2nd Author's Name Toshihiro Hanawa
2nd Author's Affiliation The University of Tokyo(U. Tokyo)
3rd Author's Name Carsten Trinitis
3rd Author's Affiliation Technical University of Munich(TUM)
4th Author's Name Martin Schulz
4th Author's Affiliation Technical University of Munich(TUM)
Date 2019-07-24
Paper # CPSY2019-20,DC2019-20
Volume (vol) vol.119
Number (no) CPSY-147,DC-148
Page pp.pp.41-46(CPSY), pp.41-46(DC),
#Pages 6
Date of Issue 2019-07-17 (CPSY, DC)