摘要： 以二维9速模型D2Q9(LBGK)为例，针对不同集合形状的流场，研究了数据分布与通信量及并行效率之间的关系。在“自强3000”集群式超级计算机上就流场网格的不同规模、多种数据分布及通信方案进行了数值实验。测试结果表明，LBGK模型的并行效率高、可扩展性好，在数据分布方案与流场网格形状相似时，并行效率最高。该结论与理论分析相吻合。

关键词: 格子模型方法, 消息传递接口, 并行计算, 可扩展性

Abstract: This paper discusses the distributed parallel computing for LBGK D2Q9 model which is based on lattice Boltzmann method, and studies the influence of distribution of two-dimensional data and its communication operation on parallel efficiency. Lots of numerical experiments on "Ziqiang3000" supercomputers are done and experimental results show that LBGK model has good parallelism, scalability and parallel efficiency, which matches the theoretical analysis.

Key words: lattice model method, Message Passing Interface (MPI), parallel computing, scalability

中图分类号: 

• TP301.6