【作者】 张耀； 袁斌； 汪秀；

【Author】 ZHANG Yao;YUAN Bin;WANG Xiu;Key Lab of Ministry of Education of China for Research of Design and EMC of High Speed Electronic Systems,Shanghai Jiao Tong University;

【机构】 上海交通大学教育部高速电子系统设计与电磁兼容研究重点实验室；

【摘要】 传统基于MPI的并行FDTD集群系统往往随着计算节点的增多而通信开销迅速增长,从而导致并行效率的下降。为此,本文引入了适用于高性能集群的可扩展一致性(Scalable Coherent Interface,SCI)通信协议,实现了计算节点间的点到点直连并行通信,从而大大提高了并行FDTD集群内的通信吞吐能力,很好地应对了由计算节点增加带来的通信开销增长问题,为并行FDTD的大规模计算提供了一种可能的实现途径。更多还原

【Abstract】 As a result of the rapid growing communication cost,traditional MPI-based parallel FDTD clusters always have a decrease on parallel efficiency with the increase of computing nodes. In order to improve the communication performance,this paper has introduced a communication protocol,SCI(Scalable Coherent Interface),and realized a direct peer-to-peer communication among computing nodes with it. In this way,the communication problem caused by increasing computing nodes is well solved and it has provided a possible approach to implement parallel FDTD to large-scale electromagnetic computation.更多还原