Ising-CIM: A Reconfigurable and Scalable Compute Within Memory Analog Ising Accelerator for Solving Combinatorial Optimization Problems
Ising-CIM: A Reconfigurable and Scalable Compute Within Memory Analog Ising Accelerator for Solving Combinatorial Optimization Problems
复制标题
Ising-CIM:用于解决组合优化问题的可重新配置和可扩展的内存模拟 Ising 加速器
DOI:
10.1109/jssc.2022.3176610
复制
发表时间:
2022
影响因子:
5.4
通讯作者:
Kulkarni, Jaydeep P.
中科院分区:
文献类型:
--
作者:
Xie, Shanshan;Raman, Siddhartha Raman;Ni, Can;Wang, Meizhi;Yang, Mengtian;Kulkarni, Jaydeep P.
Combinatorial optimization problems (COPs) find applications in real-world scientific, industrial, and societal scenarios. Such COPs are computationally NP-hard, and performing an exhaustive brute force search for the optimal solution becomes untenable as the COP size increases. To expedite the COP computation, the Ising model formalism is used, which abstracts spin dynamics in a ferromagnet. The spins are orientated to reach the minimum energy state, representing the optimum COP solution. Previous Ising engine designs utilized dedicated annealing processors or additional digital arithmetic circuits next to the memory bitcells. These custom circuits or processors cannot be repurposed for other applications, incurring significant area and power overhead. In contrast to the prior approaches, this work presents a reconfigurable and scalable compute-within-memory analog approach for Ising computation (called Ising-CIM). This area-efficient approach repurposes existing embedded memory bitcell columns and peripheral circuits to perform analog domain Hamiltonian calculations on the bitlines minimizing area and power overhead significantly. A 13.18-Kb silicon prototype, implemented in a 65-nm CMOS process, demonstrates the Ising-CIM concept and functionality using a 10064 pixel image in a max-cut COP. The Ising-CIM design achieves 48-/spin unit spin area andspeedup in annealing time compared to the CPU.
登录
查看更多内容
DOI:
--
发表时间:
2019
期刊:
IEEE International Solid-State Circuits Conference
影响因子:
--
作者:
Takashi Takemoto;Masato Hayashi;C. Yoshimura;M. Yamaoka
通讯作者:
M. Yamaoka
DOI:
10.1007/978-3-319-08123-6_29
发表时间:
2014
期刊:
IEICE Trans. Inf. Syst.
影响因子:
--
作者:
Tianshi Wang;J. Roychowdhury
通讯作者:
J. Roychowdhury
DOI:
--
发表时间:
2009
期刊:
影响因子:
--
作者:
R. Mann
通讯作者:
R. Mann
DOI:
10.1109/jxcdc.2020.3046558
发表时间:
2020-12-01
影响因子:
2.4
作者:
Csaba, Gyorgy;Porod, Wolfgang
通讯作者:
Porod, Wolfgang
DOI:
--
发表时间:
2021
期刊:
IEEE International Solid-State Circuits Conference
影响因子:
--
作者:
Takashi Takemoto;Kasho Yamamoto;C. Yoshimura;Masato Hayashi;Masafumi Tada;Hiroaki Saito;Mayumi Mashimo;M. Yamaoka
通讯作者:
M. Yamaoka