【摘要】 采用36颗安腾2处理器和Infiniband网络设备构建了一套18节点的高性能计算集群系统,经过性能调优,其Linpack值达到每秒可执行1 886亿次浮点运算(188.6 GFlops)的水平.然后,将集群系统扩展为适用于计算流体力学并行应用的数值模拟平台.建立了约为783万结构化网格的战术导弹三维流场仿真模型,通过网格分区算法将模型移植到集群系统上并行求解,并测试了集群系统的性能.结果表明,构建的CFD数值模拟平台硬、软件资源配置合理,能够适用于中等规模的CFD并行仿真.更多还原

【Abstract】 A 18 nodes high performance computing cluster system which consists of 36 itanium 2 processors and infiniband network was constructed. The cluster′s linpack performance achieves 188.6 Giga floating-point operations per second(GFlops) after optimization.The cluster system was extended to a parallel CFD(Computational Fluid Dynamics) numerical simulation platform,then. A three-dimension flow field model of tactical missile which consists of 783 million structured grids was made,and the arithmetic of partitioning grids was used to transplant the model to the cluster system to measure its performance.The result shows that the CFD numerical simulation platform′s hardware and software configuration is reasonable,and can meet the needs of medium-sized parallel CFD simulation.更多还原