A Study of Highly Parallel Computing Based on Set-Valued Logic

在这个项目中，我们研究了“多路计算架构”（如下所列）的潜力，以解决先进VLSI系统中的互连问题。[多值逻辑系统]使用非二进制/高基数数系统的新算术计算架构，如高基数除法器、高基数CORDIC处理器、冗余复数乘法器和可重构算术数据路径，被开发出来，以展示改善处理延迟、电路复杂性、门数和功耗的优势。同时，通过实验制作研究了多值集成电路技术的影响。[基于FDMA/CDMA的计算体系结构]研究了基于FDMA（频分多址）和CDMA（码分多址）的集值逻辑体系结构。采用电流模CMOS制作了基于odma的集值逻辑测试芯片，显著降低了布线复杂度。此外，通过控制m序列码的长度和复用程度，可以灵活地控制片内数据传输中的误码率。这一思想也被扩展到线高效神经网络架构的设计中。[多波长光互连]提出了一种基于mcm并行处理的多波长光互连网络，并研制了其关键器件“波长检测器”。结果表明，波长检测器可以区分波导内复用的8 - 16个波长，并且与单波长实现相比，这种复用程度使网络区域复杂性降低了1/64 ~ 1/256。[分子计算系统]研究了一种使用“酶晶体管”的分子计算架构。实验证实了酶晶体管的基本功能。

In this project, we investigated a potential of "multiplex computing architectures" (listed below) to address interconnection problems in advanced VLSI systems.1. [Multiple-Valued Logic System] New arithmetic computing architectures using non-binary/high-radix number systems, such as high-radix dividers, a high-radix CORDIC processor, a redundant complex multiplier and reconfigurable arithmetic datapaths, were developed to demonstrate advantages of improving processing latency, circuit complexity, gate count and power consumption. Also, the impact of multiple-valued integrated circuit technology was investigated through experimental fabrication.2. [FDMA/CDMA-Based Computing Architectures] Set-valued logic architectures based on FDMA (Frequency-Division Multiple Access) and CDMA (Code-Division Multiple Access) were investigated. A test chip for ODMA-based set-valued logic was fabricated using current-mode CMOS to demonstrate significant reduction in wiring complexity. Also, flexible control of bit error rate in intra-chip data transmission is possible by controlling the length of M-sequence codes and the degree of multiplexing. This idea was also extended to the design of wire-efficient neural network architectures.3. [Multiwavelength Optical Interconnection] A multiwavelength optical interconnection network for MCM-based parallel processing was proposed and its key device the "wavelength detector" was developed. It was shown that the wavelength detector can discriminate 8 16 wavelengths multiplexed within a waveguide and that this degree of multiplexing makes possible the reduction of network area complexity by the factor of 1/64 - 1/256 in comparison with a single wavelength implementation.4. [Molecular Computing System] A molecular computing architecture using "enzyme transistors" was investigated. The basic function of an enzyme transistor was confirmed experimentally.