| 一种基于二步流控方法的片上动态虚通道路由器 |
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| 引用本文： | 彭元喜,朱红雷,陈海燕.一种基于二步流控方法的片上动态虚通道路由器[J].计算机研究与发展,2011,48(1). |
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| 作者姓名： | 彭元喜 朱红雷 陈海燕 |
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| 作者单位： | 国防科学技术大学计算机学院,长沙,410073 |
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| 基金项目： | 国家自然科学基金项目(60676010); 国家“八六三”高技术研究发展计划基金项目(2007AA01Z108); 教育部“长江学者和创新团队发展计划”基金项目 |
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| 摘 要： | 片上硅面积和功耗受到严重限制,报文缓冲区容量也受到严重限制,如何高效使用报文缓冲区是NoC设计的关键问题之一.动态划分虚通道缓冲区是高效使用报文缓冲区的有效方法之一,但会增加拥塞程度,甚至出现无限拥塞的情况.提出一种基于二步流控方法的片上动态虚通道(DAVC)路由器,该二步流控方法将报文分成报文头和报文体两部分分别运用流控算法.实验结果表明:与静态虚通道(SAVC)片上路由器相比,在缓存容量相等的情况下,DAVC路由器能提高23.2%的吞吐率,传输延迟降低27.2%;在DAVC缓存容量减半的情况下可获得相近的性能,节省28.3%的面积与23.8%的漏电流功耗.
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| 关 键 词： | 流控 动态虚通道 路由器 片上网络 缓冲区管理 |
An on-Chip Dynamic Virtual Channel Router Based on Two-Step Flow Control Method |
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| Peng Yuanxi,Zhu Honglei,Chen Haiyan.An on-Chip Dynamic Virtual Channel Router Based on Two-Step Flow Control Method[J].Journal of Computer Research and Development,2011,48(1). |
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| Authors: | Peng Yuanxi Zhu Honglei Chen Haiyan |
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| Affiliation: | Peng Yuanxi,Zhu Honglei,and Chen Haiyan(College of Computer,National University of Defense Technology,Changsha 410073) |
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| Abstract: | The on-chip area and power are limited seriously,so as to the capacity of packet buffer.So one of key issues of NoC design is how to use packet buffer efficiently.Dynamic virtual channel buffer is one of efficient ways,but may make congestion heavier,or even may make dead congestion appear.This paper proposes an on-chip dynamic virtual channel(DAVC) router based on two-step flow control method,which splits a packet into a head and a body to apply flow control algorithms separately,and it can retard congesti... |
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| Keywords: | flow control dynamic virtual channel router network-on-chip buffer management |
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