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JSSC 2021第1期Digital Circuits65nm

STATICA A 512-Spin 025M-Weight Annealing Processor With an All-Spin-Updates-at-O

STATICA是一款支持512自旋全连接图的高性能退火处理器，采用随机细胞自动机退火动力学。
512-spin fully connected graph, 3mm × 4mm chip size
退火处理器组合优化全连接图随机细胞自动机并行计算
▸引入随机细胞自动机退火动力学，支持全连接自旋同时更新
▸采用PE级、流水线级和内存库级并行化
▸支持512自旋全连接图，可扩展至2048自旋
Abstract
This article presents a high-performance annealing processor named STochAsTIc Cellular automata Annealer (STATICA) for solving combinatorial optimization problems rep- resented by fully connected graphs. Supporting fully connected graphs is strongly required for dealing with realistic optimiza- tion problems. Unlike previous annealing processors that follow Glauber dynamics, our proposed annealer can update multiple states of fully connected spins simultaneously by introducing different dynamics