摘要
搭建了分布式并行计算机机群,尝试采用并行计算求解连铸结晶器的传热行为,并对其构造与实现方法进行研究。设计并优化了并行算法的关键步骤:区域分割、负载平衡、数据传递、同步和网络拓扑,编写并行程序并在机群上进行了测评。结果显示,采用并行算法可获得与串行算法相同的模拟结果,并且能够有效降低结晶器传热模拟的计算时间;并行粒度决定加速比的大小和并行效率的高低;并行算法适于解决计算网格数目庞大的结晶器传热问题,为实现结晶器在线监控和实时模拟计算提供了可行性途径。
A COW was built,the feasibility and the implementation method of parallel computing for numerical simulation of thermal behavior in continuous casting mould were investigated. Some key steps of the parallel algorithm such as space decomposition,load balance,data change between neighbor domains,synchronization and network topology,were studied and optimized.The parallel program was also proposed and tested on COW. The results indicate that both parallel algorithm and serial algorithm can obtain the same simu...
出处
《热加工工艺》
CSCD
北大核心
2009年第1期55-59,共5页
Hot Working Technology
关键词
机群
并行计算
结晶器
传热
数值模拟
cluster of workstation（COW）
parallel computing
mould
heat transfer
numerical simulation
