三维地震动场数值模拟并行计算系统

Parallel computer system for 3-D numerical simulation of ground motion

并行计算系统是进行三维复杂场地地震动场数值模拟的基础。本文作者利用10台微机构建了一套并行计算集群(常称为Beowulf系统),节点微机上运行Windows2000操作系统,采用MPI标准的MPICH1.2.4版本作为并行计算的支撑环境,并以100Mbps高速交换式以太网作为互连网络。利用编制的并行计算程序对该并行计算系统性能进行了测试。结果表明:该系统能够达到非常高的并行加速比和并行效率。该系统将用于三维地震动场数值模拟研究。

3-D numerical simulation of ground motion depends on parallel computer system. In this paper, a parallel computing cluster (Beowulf system) with 10 PCs is introduced. Every PC runs Windows 2000 operation system. The parallel computer system is controlled and supported by MPICH1.2.4 implementation of MPI.A high speed 100M bps ethernet interconnects all PCs. The performance of the system is tested using a parallel computer program. Results show that this Beowulf system could run with high speedup ratio and parallel efficiency. The Beowulf system could be used to 3-D numerical simulation of ground motion.