基于AWGR的光电混合交换高性能计算互连网络

王昭; 裴秉玺; 何卫锋

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基于AWGR的光电混合交换高性能计算互连网络

更新时间：2026-09-04

- 基于AWGR的光电混合交换高性能计算互连网络
- An optical-electrical hybrid switching high performance computing interconnect network based on AWGR
- 微电子学与计算机 2019年36卷第8期页码：19-24
- 作者机构：
  
  上海交通大学微纳电子学系,上海,200240
- 作者简介：
- 基金信息：
- DOI：
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- 纸质出版：2019
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王昭, 裴秉玺, 何卫锋. 基于AWGR的光电混合交换高性能计算互连网络[J]. 微电子学与计算机, 2019, 36(8): 19-24.

WANG Zhao, PEI Bing-xi, HE Wei-feng. An optical-electrical hybrid switching high performance computing interconnect network based on AWGR[J]. 2019, 36(8): 19-24.
王昭, 裴秉玺, 何卫锋. 基于AWGR的光电混合交换高性能计算互连网络[J]. 微电子学与计算机, 2019, 36(8): 19-24. DOI：

WANG Zhao, PEI Bing-xi, HE Wei-feng. An optical-electrical hybrid switching high performance computing interconnect network based on AWGR[J]. 2019, 36(8): 19-24. DOI：

摘要

为了满足高性能计算机中互连网络的高吞吐量、低延迟需求

本文基于阵列波导光栅路由器(AWGR)

提出了一种低延迟的光电混合交换的互连网络结构.该网络以"天河二号"超级计算机的互连网络拓扑结构为基础

使用无竞争阻塞的AWGR替代了部分电路由器

通过改进设计电路由器的光端口来实现与原有高阶路由器内部的电交换方式兼容.在此基础上

使用OMNeT++软件框架编写了新的光电混合交换网络的仿真模型.仿真结果表明

与原始网络相比

光电混合交换网络的总延迟降低了8%~10%.

Abstract

To satisfy the throughput and latency requirement of high-performance-computing interconnect network

a low-latency optical-electrical hybrid switching network structure based on arrayed waveguide grating router (AWGR) is proposed. On the basis of "Tianhe-Ⅱ" supercomputers network topology

part of electrical high-radix routers are replaced by non-blocking and contention-free AWGRs. The optical port of electrical router is re-designed to interface the optical packets with routers internal switching logics. To evaluate the performance of proposed network

a simulation model is developed using OMNeT++ software framework. The simulation shows that the data latency of hybrid switching network is 8%~10% lower than the electrical switching network.

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references

SCOTT S, ABTS D, KIM J, et al. The BlackWidow High-Radix Clos Network [C]//33rd International Symposium on Computer Architecture (ISCA'06). Boston, MA, USA: IEEE, 2006: 16-28.

YE X, PROIETTI R, YIN Y, et al. Buffering and Flow Control in Optical Switches for High Performance Computing [J]. IEEE/OSA Journal of Optical Communications and Networking, 2011, 3(8): 59-72. DOI: 59

CAO Z, PROIETTI R, YOO S J B. Hi-LION: Hierarchical large-scale interconnection optical network with AWGRs [J]. IEEE/OSA Journal of Optical Communications and Networking, 2015, 7(1): 97-105. DOI: 97

SIMSARIAN J E, LARSON M C, GARRETT H E, et al. Less than 5-ns wavelength switching with an SG-DBR laser [J]. IEEE Photonics Technology Letters, 2006, 18(4): 565-567. DOI: 565

CHEUNG S, SU T, OKAMOTO K, et al. Ultra-Compact Silicon Photonic 512 × 512 25 GHz Arrayed Waveguide Grating Router [J]. IEEE Journal of Selected Topics in Quantum Electronics, 2014, 20(4): 310-316. DOI: 310

YE X, MEJIA P, YIN Y, et al. DOS - A scalable optical switch for datacenters [C]//ACM/IEEE Symposium on Architectures for Networking and Communications Systems (ANCS). La Jolla, CA, USA: IEEE, 2010: 1-12.

LIAO X K, PANG Z B, WANG K F, et al. High performance interconnect network for Tianhe System [J]. Journal of Computer Science and Technology, 2015, 30(2):259. DOI: 259

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