CAREER: Optically-Interconnected Fully-Adaptive Network Router

职业：光互连全自适应网络路由器

• 批准号: 9624251
• 负责人: Timothy Pinkston
• 金额: $ 27.5万
• 依托单位: University of Southern California
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-07-01 至 2001-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9624251&HistoricalAwards=false
• 关键词: CAREER; Optically; Interconnected; Fully; Adaptive

9624251 Pinkston The precursor to building general-purpose teraflop computer systems is the advancement of network technology to reach much higher levels of performance. In parallel processor systems, where multiple high performance processors work cooperatively as one connected unit, performance is determined by the effective utilization of processor nodes which, predominately, depends upon communication efficiency. The backbone for communication in parallel processing environments is the interconnection network. We propose to design and implement in a hybrid GaAs/silicon chip a flexible fully-adaptive deadlock-free optical network router featuring a new packet routing algorithm universally applicable to any network topology. This proposed research serves to further advance the state-of-the-art in interconnection network technology by exploring hardware-based solutions for increasing parallel processor communication efficiency. This work leverages ofd of current trends in interconnection network router architecture and continuing advancements in optical/photonic technology. Our proposed optical router provides a flexible framework for exploring many design alternatives never before imagined due to its high degree of resource decoupling and topological independence. Interesting issues to be investigated in the building of the router include how to accurately detect deadlock, how to efficiently implement the deadlockfree recovery lane, how to implement low overhead internal and external flow control for optical interconnects, and how to integrate optical transmitters, optical receivers. and complex electronic router logic circuitry onto a single optoelectronic VLSI router chip. Interesting issues that can be further understood once the router is built include the performance and/or fault tolerance advantages of fully adaptive wormhole routing, misrouting capability, the use of the DB resource for not only recovering from potential deadlocks but also for relieving n ormal network congestion, and the use of dense high bandwidth optical I/O for fully adaptive network routers. We will systematically address these and other important issues as we go about designing, building, and experimenting with this novel network router. This research adds significantly to optical interconnect/photonic switching infrastructure. This work is pioneering in that, to our knowledge, we are the first to propose research that encompasses advanced switching, flow control, and routing functionality in optical interconnection network design. The principal investigator will lead a dedicated research team ranging in research experience consisting of undergraduate, graduate. and post-graduate collaborative researchers. Moreover, important research achievements will find use in the classroom to serve as excellent illustrations in teaching. Hence, we will demonstrate that current and next-generation interconnection network techniques such as wormhole switching, virtual channel flow, and adaptive routing are feasibly incorporated in optically-based interconnection networks. This will provide a platform on which to build optically interconnected parallel processing systems, impacting the applicability of this technology to future systems. ***

9624251 Pinkston建造通用TERAFLOP计算机系统的前体是网络技术的进步，以达到更高的性能水平。在并行处理器系统中，多个高性能处理器作为一个连接的单元合作工作，性能取决于处理器节点的有效利用，主要取决于通信效率。在并行处理环境中进行通信的骨干是互连网络。我们建议在混合GAAS/Silicon芯片中设计和实施一个灵活的完全自适应的无僵持网络路由器，该路由器具有新的数据包路由算法，普遍适用于任何网络拓扑。这项拟议的研究旨在通过探索基于硬件的解决方案来提高并行处理器通信效率，以进一步推进互连网络技术的最新技术。这项工作利用了互连网络路由器架构的当前趋势以及光学/光子技术的持续进步。 我们提出的光路路由器为探索许多从未想象过的设计替代方案提供了一个灵活的框架，这是由于其高度的资源解耦和拓扑独立性。在路由器建造中需要研究的有趣问题包括如何准确检测僵局，如何有效地实施僵局的恢复车道，如何实现光学互连的低架空内部和外部流量控制以及如何集成光学发射器，光接收机。和复杂的电子路由器逻辑电路上单个光电子VLSI路由器芯片。一旦建立了路由器，就可以进一步理解的有趣问题包括完全自适应虫洞路由的性能和/或容错的优势，误导能力误导能力，使用DB资源不仅可以从潜在的死锁中恢复，还可以使N ormal网络的良好网络充满良好的巨大型号I/O的使用量以及完全适合于全面的网络。当我们在设计，构建和尝试这个新颖的网络路由器时，我们将系统地解决这些和其他重要问题。 这项研究大大增加了光学互连/光子开关基础架构。据我们所知，这项工作是开创性的，我们是第一个提出研究的研究，其中涵盖了光学互连网络设计中高级切换，流控制和路由功能。首席研究人员将领导一个专门的研究团队，该研究团队在研究经验方面，包括本科，研究生。和研究生合作研究人员。此外，重要的研究成就将在课堂上找到用作教学中的出色插图。因此，我们将证明当前和下一代互连网络技术，例如虫洞开关，虚拟通道流量和自适应路由，可当可行地纳入基于光学的基于光学的互连网络中。这将提供一个平台，以构建光学互连的并行处理系统，从而影响该技术对未来系统的适用性。 ***