面向高性能计算应用的双总线型聚合物波导阵列研究

项目名称： 面向高性能计算应用的双总线型聚合物波导阵列研究

项目编号： No.61205089

项目类型： 青年科学基金项目

立项/批准年度： 2013

项目学科： 信息四处

项目作者： 余志华

作者单位： 中国地质大学（武汉）

项目金额： 27万元

中文摘要： 在高性能计算系统研究中，互连网络成为制约系统性能提高的关键。基于此，研究提出了一种面向高性能计算应用的双总线型聚合物多模波导阵列方案，整个结构由总线波导、分支波导和Y分支组成，通过优化设计总线波导和分支波导的尺寸比例和分支波导的弯曲半径，来实现多节点间高速光互连。 该方案借鉴了传统冯.诺依曼总线架构计算机模型，完全不同于基于MESH或Crossbar的光互连网络；它既克服了光电集成互连网络存在电交换互连瓶颈的问题，又改进了点到点光互连技术难以有效实现数据广播分发和接收的不足，且该波导阵列具有可扩展，制作工艺成熟和成本较低等优点，可应用于高速光学背板或PCB板上芯片间高速光互连，是对未来高性能计算机或超级计算机系统架构的一种有效尝试和探索。

中文关键词： 聚合物波导；光互连；光束传输法；传输损耗；高性能计算

英文摘要： In the recent research of High-Performance Computing(HPC), interconnection network becomes the main barrier to improve computing ability.Due to this, an innovative bi-directional optical bus architecture based on multimode polymer waveguides was proposed to solve the problem of high speed interconnection. The whole architecture consists of two parallel optical bus waveguides, which can transmit optical signals along two opposite directions. The optical signals from the transmitter (T) of each transceiver will be split into two beams and transmitted bi-directionally into the two bus waveguides through two unidirectional branch waveguides. The receiver (R) of each transceiver is also capable of receiving optical signals from both of the two bus waveguides, benefited from the two unidirectional branch waveguides that are connected with them. The two parallel optical bus waveguides in conjunction with the unidirectional branch waveguides ensure completely non-blocking interconnection among any existing transceiver without any wiring crossing. Superior to any point-to-point optical waveguide, which is useful to most high performance computer (HPC) system only when it is combined with electrical switch backplanes, the implemented optical bus structure is capable of broadcasting and receiving high speed data at 10

英文关键词： Polymer waveguide；Optical interconnects；Beam propagaion method；Propagation loss；High-perfermance computer