Presentation 2019-08-07
[Invited Talk] A Scalable CMOS Annealing Processor for Solving Large-scale Combinatorial Optimization Problems
Masato Hayashi, Takashi Takemoto, Chihiro Yoshimura, Masanao Yamaoka,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) This paper presents a CMOS annealing processor (CMOS-AP) that accelerates ground state searches of the Ising model. The main feature of this processor is its inter-chip connection interface for making a larger chip. A credit card sized compute node integrating two CMOS-APs was also developed as an interface with existing computer systems. The compute node can handle up to 61,952 spins at a time. A performance evaluation using the node improved the CPU speed by 55 times in solving a minimum vertex cover problem, one of the NP-hard combinatorial optimization problems. Finally, we describe a cloud interface for the compute node to make the CMOS-APs more useful and to promote application development for it.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Combinatorial optimization / Annealing / Accelerator / Ising model
Paper # SDM2019-36,ICD2019-1
Date of Issue 2019-07-31 (SDM, ICD)

Conference Information
Committee SDM / ICD / ITE-IST
Conference Date 2019/8/7(3days)
Place (in Japanese) (See Japanese page)
Place (in English) Hokkaido Univ., Graduate School /Faculty of Information Science and
Topics (in Japanese) (See Japanese page)
Topics (in English) Analog, Mixed Analog and Digital, RF, and Sensor Interface, Low Voltage/Low Power Techniques, Novel Devices/Circuits, and the Applications
Chair Takahiro Shinada(Tohoku Univ.) / Makoto Nagata(Kobe Univ.) / 秋田 純一(金沢大))
Vice Chair Hiroshige Hirano(TowerJazz Panasonic) / Masafumi Takahashi(Toshiba-memory) / 廣瀬 裕(パナソニック)
Secretary Hiroshige Hirano(Shizuoka Univ.) / Masafumi Takahashi(TOSHIBA MEMORY) / 廣瀬 裕(Tohoku Univ.)
Assistant Takahiro Mori(AIST) / Nobuaki Kobayashi(Nihon Univ.) / Tetsuya Hirose(Osaka Univ.) / Koji Nii(Floadia) / Takeshi Kuboki(Kyushu Univ.)

Paper Information
Registration To Technical Committee on Silicon Device and Materials / Technical Committee on Integrated Circuits and Devices / Technical Group on Information Sensing Technologies
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) [Invited Talk] A Scalable CMOS Annealing Processor for Solving Large-scale Combinatorial Optimization Problems
Sub Title (in English)
Keyword(1) Combinatorial optimization
Keyword(2) Annealing
Keyword(3) Accelerator
Keyword(4) Ising model
1st Author's Name Masato Hayashi
1st Author's Affiliation Hitachi, Ltd.(Hitachi)
2nd Author's Name Takashi Takemoto
2nd Author's Affiliation Hitachi, Ltd.(Hitachi)
3rd Author's Name Chihiro Yoshimura
3rd Author's Affiliation Hitachi, Ltd.(Hitachi)
4th Author's Name Masanao Yamaoka
4th Author's Affiliation Hitachi, Ltd.(Hitachi)
Date 2019-08-07
Paper # SDM2019-36,ICD2019-1
Volume (vol) vol.119
Number (no) SDM-161,ICD-162
Page pp.pp.1-5(SDM), pp.1-5(ICD),
#Pages 5
Date of Issue 2019-07-31 (SDM, ICD)