MPICH2-CMEX：implementation technology of scalable message passing interface

Computer Engineering and Applications ›› 2008, Vol. 44 ›› Issue (2): 123-125.

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MPICH2-CMEX：implementation technology of scalable message passing interface

XIE Min,LU Yu-tong,ZHOU En-qiang

College of Computer，National University of Defense Technology，Changsha 410073，China

Received:1900-01-01 Revised:1900-01-01 Online:2008-01-11 Published:2008-01-11
Contact: XIE Min

MPICH2-CMEX:可扩展消息传递接口实现技术

谢旻,卢宇彤,周恩强

国防科学技术大学计算机学院，长沙 410073

通讯作者: 谢旻

Abstract

Abstract: In large scale parallel computing systems，a high-performance scalable MPI implementation is crucial for parallel applications in order to exploit the massive parallelism in these systems effectively.CMEX is a user level communication software interface which provides connection-less high-performance packet transmission and RDMA operations.MPICH2-CMEX is a MPI implementation based on CMEX，it implements several high speed data transmission channels utilizing the property of RDMA read and RDMA write operation.Near-neighbor communication，an important application feature，is also utilized to implement hybrid channel data transmission.Experimental results demonstrate the good performance and scalability of MPICH2-CMEX system.

Key words: MPI, RDMA, near-neighbor communication

摘要： 在大规模并行计算系统中，为了更有效地利用系统的并行性，实现一个高性能、可扩展的MPI系统是非常重要的。CMEX是无连接模式的用户级通讯软件接口，提供了高性能的报文传输和RDMA通讯操作，MPICH2-CMEX是基于CMEX的MPI实现，结合RDMA读和RDMA写通讯操作的特性，MPICH2-CMEX实现了多种数据传输通道，并利用并行应用的近邻通讯模式，实现了混合通道数据传输方法，实际的应用测试表明，MPICH2-CMEX系统具有良好的性能和可扩展性。

关键词: MPI, RDMA, 近邻通讯

XIE Min,LU Yu-tong,ZHOU En-qiang. MPICH2-CMEX：implementation technology of scalable message passing interface[J]. Computer Engineering and Applications, 2008, 44(2): 123-125.

谢旻,卢宇彤,周恩强. MPICH2-CMEX:可扩展消息传递接口实现技术[J]. 计算机工程与应用, 2008, 44(2): 123-125.

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MPICH2-CMEX：implementation technology of scalable message passing interface

MPICH2-CMEX:可扩展消息传递接口实现技术

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