| Communication Express通讯软件接口：实现技术与性能评测 |
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| 引用本文： | 谢旻,刘路,卢宇彤,傅清朝,周恩强.Communication Express通讯软件接口：实现技术与性能评测[J].计算机工程与科学,2007,29(11):140-144. |
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| 作者姓名： | 谢旻 刘路 卢宇彤 傅清朝 周恩强 |
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| 作者单位： | 国防科技大学计算机学院,湖南长沙410073 |
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| 摘 要： | 本文描述了一个基于PCI-X总线高速通讯卡的通讯软件接口实现技术，该接口通过虚拟硬件资源，实现了保护的用户级通讯操作，提供报文传输和RDMA两种数据传输方式，实现进程间数据的零拷贝传输，同时基于该接口还支持IP报文的传输。测试中该接口在单链路上实现501MB／s，双链路上实现1002MB／s的带宽，在基于Socket接口的测试中，实现了384MB／s的通讯带宽。
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| 关 键 词： | 高性能计算 集群互连 用户级通讯 RDMA |
| 文章编号： | 1007-130X（2007）11-0140-05 |
| 收稿时间： | 2006-03-27 |
| 修稿时间： | 2006-07-13 |
The Communication Express Software Interface: Implementation and Performance Evaluation |
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| XIE Min,LIU Lu,LU Yu-tong,FU Qing-chao,ZHOU En-qiang.The Communication Express Software Interface: Implementation and Performance Evaluation[J].Computer Engineering & Science,2007,29(11):140-144. |
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| Authors: | XIE Min LIU Lu LU Yu-tong FU Qing-chao ZHOU En-qiang |
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| Abstract: | In this paper,we describe the implementation of a communication software interface which is based on a PCI-X high-speed communication card.This interface virtualizes hardware resources,implements protected user-level communication operations,and provides two data transferring modes:packet send/receive and RDMA.Zero copy data transferring can be executed between processes,and IP packets can be transferred through this interface too.In the tests,we get a maximum 500 MB/s bandwidth between two cards,and a 1003 MB/s bandwidth when we use two rails.We also get a maximum 384 MB/s bandwidth based on the Socket interface. |
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| Keywords: | high-performance computing cluster interconnection user-level communication RDMA |
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