| 基于网络包延迟偏差的硬件动态拥塞控制机制 |
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| 引用本文： | 任秀江,斯添浩,周建毅,谢向辉.基于网络包延迟偏差的硬件动态拥塞控制机制[J].计算机工程与科学,2018,40(2):200-209. |
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| 作者姓名： | 任秀江 斯添浩 周建毅 谢向辉 |
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| 作者单位： | （1.江南计算技术研究所,江苏 无锡 214083;2.数学工程与先进计算国家重点实验室,江苏 无锡 214125） |
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| 基金项目： | 核高基项目(2013ZX0102-8001-001-001) |
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| 摘 要： | 互连网络已经成为提升高性能计算系统性能的技术瓶颈。对高性能互连网络中的拥塞控制进行研究，针对通信热点的形成过程，给出了一种基于网络包延迟偏差的硬件动态拥塞控制机制CMDPD，利用网络包传输延迟偏差预判网络拥塞状态，控制端到端网络注入，避免拥塞形成。构建了模拟环境，在Fat-tree和Dragonfly两种网络结构下，对CMDPD进行了模拟实验。结果表明，在Fat-tree网络中CMDPD的吞吐率可提高5%~12%。
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| 关 键 词： | 拥塞控制 互连网络 网络包延迟 |
| 收稿时间： | 2017-09-01 |
| 修稿时间： | 2018-02-25 |
A hardware dynamic congestion-control
mechanism based on packet delay variation |
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| REN Xiu-jiang,SI Tian-hao,ZHOU Jian-yi,XIE Xiang-hui.A hardware dynamic congestion-control
mechanism based on packet delay variation[J].Computer Engineering & Science,2018,40(2):200-209. |
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| Authors: | REN Xiu-jiang SI Tian-hao ZHOU Jian-yi XIE Xiang-hui |
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| Affiliation: | （1.Jiangnan Institute of Computing Technology,Wuxi 214083;
2.State Key Laboratory of Mathematical Engineering and Advanced Computing,Wuxi 214125,China）
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| Abstract: | Interconnection networks have become a technical bottleneck to improve the performance of high-performance computing systems. The congestion control in high-performance interconnection networks is studied. Aiming at the formation process of communication hotspots, a hardware dynamic congestion control mechanism (CMDPD) is proposed. The transmission delay variation of packets is used to predict the network congestion state, and the end-to-end network injection is controlled to avoid the network congestion. The simulation environment is built up, and CMDPD is simulated under Fat-tree and Dragonfly networks. The results show that the throughput of CMDPD in Fat-tree network is improved by 5%~12% . |
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| Keywords: | congestion control interconnect network packet delay |
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