MPICH2-CMEX:implementation technology of scalable message passing interface
Enqiang Zhou · Computer Engineering and Applications Journal · 2008
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.