SHF: Small: Collaborative Research: Ultra-Low Latency Optical Packet Switched Interconnects with Novel Switching Paradigm

SHF：小型：协作研究：具有新颖交换范式的超低延迟光分组交换互连

• 批准号: 0915823
• 负责人: Yuanyuan Yang
• 金额: $ 23万
• 依托单位: SUNY at Stony Brook
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-09-01 至 2015-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0915823&HistoricalAwards=false
• 关键词: SHF; Small; Collaborative; Research; Ultra

With the advances of modern computer architectures, interconnects are playing an ever increasingly important role for providing an effective communication medium. Advanced optical switching technologies, such as optical packet switching and wavelength-division-multiplexing, provide a platform to exploit the huge capacity of optical fiber to meet the increasing needs. This research proposes a new switching paradigm - optical cut-through with electronic packet buffering, and systematically investigates the fundamental and challenging issues in the optical interconnect under this switching scheme, with the objective of designing cost-effective, ultra-low latency and pragmatic interconnects for future high-performance computing and communications systems.A unique feature of the proposed interconnect is that those packets that do not cause contention can pass the interconnect directly in optical form and experience minimum delay, while only those that cause contention are buffered. This research proposes to combine optical packet switching with electronic buffering, such that the interconnect will enjoy both fast switching and large buffering capacity. This research will (1) design the switching fabric and packet scheduling algorithms, (2) design practical Forward Error Control (FEC) for the interconnect, and (3) conduct extensive performance evaluations by means of simulation and emulation tools and analytical models. The outcome of this project will have a significant impact on fundamental design principles and infrastructures for the development of future high-performance computing and communications systems. The PIs will integrate graduate and undergraduate students into the project and promote the participation of female and minority students. The findings will be disseminated to the research community by way of conferences, journals, and web site access.

随着现代计算机体系结构的进步，互连在提供有效的通信介质方面发挥着越来越重要的作用。先进的光交换技术，如光包交换和波分复用，提供了一个平台来利用光纤的巨大容量来满足不断增长的需求。 本研究提出了一种新的交换范式——带有电子数据包缓冲的光直通，并系统地研究了该交换方案下光互连中的基本和具有挑战性的问题，目的是设计具有成本效益、超低延迟和实用的互连所提出的互连的一个独特特征是，那些不会引起争用的数据包可以直接以光学形式通过互连，并经历最小的延迟，而只有那些引起争用的数据包才会被缓冲。本研究提出将光分组交换与电子缓冲相结合，使互连能够同时享受快速交换和大缓冲能力。 这项研究将（1）设计交换结构和数据包调度算法，（2）为互连设计实用的前向错误控制（FEC），以及（3）通过模拟和仿真工具以及分析模型进行广泛的性能评估。该项目的成果将对未来高性能计算和通信系统开发的基本设计原则和基础设施产生重大影响。 PI 将把研究生和本科生纳入该项目，并促进女性和少数民族学生的参与。研究结果将通过会议、期刊和网站访问的方式传播给研究界。