基于JASMIN框架多物理耦合程序的性能优化及分析  

Performance Optimization and Analysis of Multi-physics Composition Program on JASMIN

作　　者：任健[1] 武林平[1] 申卫东[1] 

机构地区：[1]北京应用物理与计算数学研究所,北京100094

出　　处：《计算物理》2015年第4期431-436,共6页Chinese Journal of Computational Physics

基　　金：国家自然科学基金(11472059)资助项目

摘　　要：基于并行应用支撑软件框架JASMIN的辐射流体与粒子输运耦合程序RHSn2D,采用最小邦元固定处理器数目的并行策略,计算实际模型的并行规模扩展至8 192核,并行效率约为16%.集成程序时间分析,验证软件框架底层MPI并行环境聚合通信对于并行优化算法(尤其是辐射流体计算时间)的影响.Invariable processor in a minimum federal algorithm is applied to RHSn2 D program,which is a multi-physics composition program such as radiation hydrodynamics and particle transport based on parallel software infrastructure JASMIN. With improvement of parallel algorithm,RHSn2 D program achieves parallel efficiency of 16% with 8 192 processors for real models. Time analysis of integrated program demonstrates that perfermance of MPI collective communications in parallel software infrastructure decides computing time of radiation hydrodynamics with parallel algorithm.

关 键 词：多物理耦合 并行计算 性能优化 RHSn2D程序 并行软件支撑框架JASMIN 

分 类 号：TP301[自动化与计算机技术—计算机系统结构]