Adiabatic Quantum-Flux-Parametron: Towards Building Extremely Energy-Efficient Circuits and Systems
Adiabatic Quantum-Flux-Parametron: Towards Building Extremely Energy-Efficient Circuits and Systems
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DOI：
10.1038/s41598-019-46595-w
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发表时间：
2019-07
影响因子：
4.6
通讯作者：
O. Chen;R. Cai;Yanzhi Wang;Fei Ke;Taiki Yamae;Ro Saito;N. Takeuchi;N. Yoshikawa
中科院分区：
文献类型：
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作者：
O. Chen;R. Cai;Yanzhi Wang;Fei Ke;Taiki Yamae;Ro Saito;N. Takeuchi;N. Yoshikawa
绝热量子通量参量管 (AQFP) 逻辑是绝热超导逻辑系列，已被提议作为构建极其节能的计算系统的未来技术。在 AQFP 逻辑中，由于使用交流激励电流（既充当时钟信号又充当电源）进行绝热开关操作，动态能量耗散可以大大减少。因此，AQFP 可以克服传统超导逻辑系列（例如快速单通量量子（RSFQ））中的功率/能量耗散限制。仿真和实验结果表明，AQFP 逻辑可以使用实际电路参数和可用的制造工艺实现接近量子极限的能量延迟产物 (EDP)。为了阐明 AQFP 电路的设计自动化和指南，在本文中，我们提出了 AQFP 的自动综合框架，并基于我们开发的 AQFP 技术标准单元库对 18 个电路进行综合，包括 11 个 ISCAS-85 电路基准、6 个深度学习加速器组件和一个 32 位 RISC-V ALU。合成结果证明了AQFP技术的显着优势。与台积电 (TSMC) 12nm 鳍式场效应晶体管 (FinFET)、28nm 和 40nm 互补金属氧化物半导体 (CMOS) 技术节点的综合结果相比，我们预测每操作能耗优势分别为 9,313×、25,242× 和 48,466×。
Adiabatic Quantum-Flux-Parametron (AQFP) logic is an adiabatic superconductor logic family that has been proposed as a future technology towards building extremely energy-efficient computing systems. In AQFP logic, dynamic energy dissipation can be drastically reduced due to the adiabatic switching operations using AC excitation currents, which serve as both clock signals and power supplies. As a result, AQFP could overcome the power/energy dissipation limitation in conventional superconductor logic families such as rapid-single-flux-quantum (RSFQ). Simulation and experimental results show that AQFP logic can achieve an energy-delay-product (EDP) near quantum limit using practical circuit parameters and available fabrication processes. To shed some light on the design automation and guidelines of AQFP circuits, in this paper we present an automatic synthesis framework for AQFP and perform synthesis on 18 circuits, including 11 ISCAS-85 circuit benchmarks, 6 deep-learning accelerator components, and a 32-bit RISC-V ALU, based on our developed standard cell library of AQFP technology. Synthesis results demonstrate the significant advantage of AQFP technology. We forecast 9,313×, 25,242× and 48,466× energy-per-operation advantage, compared to the synthesis results of TSMC (Taiwan Semiconductor Manufacturing Company) 12 nm fin field-effect transistor (FinFET), 28 nm and 40 nm complementary metal-oxide-semiconductor (CMOS) technology nodes, respectively.