TY - GEN
T1 - Fabrication and Evaluation of a 22nm 512 Spin Fully Coupled Annealing Processor for a 4k Spin Scalable Fully Coupled Annealing Processing System
AU - Endo, Akari
AU - Megumi, Taichi
AU - Kawahara, Takayuki
N1 - Publisher Copyright:
© 2024 IEEE.
PY - 2024
Y1 - 2024
N2 - Large-scale CMOS annealing processors are being developed to solve combinatorial optimization problems in society. Although it has been difficult to implement fully coupled annealing processors on multiple chips due to the complexity of the coupling, it is possible to scale by dividing a part of the calculation. In this work, we aim to realize a 4096 spin scalable fully coupled annealing processing system with 38 chips. For this purpose, we fabricated and evaluated the A-chip LSI that serves as the core in this system. We also reduced the number of required A-chips by 43.75% by reducing the interactions that occupy most of the area. In addition, we introduced spin threads to improve solution accuracy.
AB - Large-scale CMOS annealing processors are being developed to solve combinatorial optimization problems in society. Although it has been difficult to implement fully coupled annealing processors on multiple chips due to the complexity of the coupling, it is possible to scale by dividing a part of the calculation. In this work, we aim to realize a 4096 spin scalable fully coupled annealing processing system with 38 chips. For this purpose, we fabricated and evaluated the A-chip LSI that serves as the core in this system. We also reduced the number of required A-chips by 43.75% by reducing the interactions that occupy most of the area. In addition, we introduced spin threads to improve solution accuracy.
KW - CMOS
KW - combinatorial optimization problems
KW - fully coupled Ising models
KW - scalable annealing processors
UR - http://www.scopus.com/inward/record.url?scp=85186755498&partnerID=8YFLogxK
U2 - 10.1109/SAMI60510.2024.10432908
DO - 10.1109/SAMI60510.2024.10432908
M3 - Conference contribution
AN - SCOPUS:85186755498
T3 - 2024 IEEE 22nd World Symposium on Applied Machine Intelligence and Informatics, SAMI 2024 - Proceedings
SP - 71
EP - 76
BT - 2024 IEEE 22nd World Symposium on Applied Machine Intelligence and Informatics, SAMI 2024 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2024 IEEE 22nd World Symposium on Applied Machine Intelligence and Informatics, SAMI 2024
Y2 - 25 January 2024 through 27 January 2024
ER -