稀薄气体直接仿真蒙特卡洛方法交互式并行化系统研究与实现

Study and Implementation of Interactive Parallelization System for Rarefied Gas Direct Simulation Monte Carlo Method

在分析稀薄气体直接仿真蒙特卡洛(Direct Simulation Monte Carlo,DSMC)方法特点的基础上,研究了基于高性能计算平台的DSMC问题交互式并行化技术,提出了DSMC交互式并行化流程和DSMC程序并行化系统体系结构,实现了能对DSMC问题进行处理的交互式并行化软件系统,并应用到两个微通道DSMC方法算例的并行化中,并行化后的两个算例在8个节点的并行集群系统上的计算结果与原串行程序完全吻合,证明了该交互式并行化方法的正确性。

On the basis of analyzing the characters of rarefied gas DSMC method, this paper studied the interactive parallelization lechnology of DSMC on high performance computing platforms. This papcr carried out the flowchart and architecture of DSMC interactive parallelization and implemented the corresponding software system. Two DSMC programs have already been paratlelized successfully. Testing results show that these two parallclized pro grams on a cluster system with 8 nodes fit closely with the original sequential program.