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研究并实现了一种基于PC集群系统的MPI主从式并行文件传输系统。通过引入一个监控节点实时监控当前各真实节点上的连接数、请求任务量以及各节点的实际处理能力,并衡量不同内容节点的负载,以实现集群内各节点负载均衡,从而更合理地实现并行文件I/O的任务分配。结果显示,该系统具有近似线性加速比,即文件I/O传输速度随着并行节点数量的增多而提高。
Research and implementation of a PC-based cluster system MPI master-slave parallel file transfer system. By introducing a monitoring node in real time to monitor the current number of connections on each real node, request the amount of tasks and the actual processing power of each node, and measure the load of different content nodes to achieve load balancing among nodes in the cluster so as to achieve more reasonable parallelism File I / O assignment. The results show that the system has an approximate linear speedup, that is, file I / O transfer speed increases with the number of parallel nodes.