MPICH2-CMEX:可扩展消息传递接口实现技术

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。

MPICH2-CMEX:implementation technology of scalable message passing interface

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.