计算物理 ›› 1997, Vol. 14 ›› Issue (S1): 510-511,509.

• 论文 • 上一篇    下一篇

一类分解刚性大系统的组合方法

陈丽容, 刘德贵   

  1. 北京计算机应用与仿真技术研究所, 100854
  • 收稿日期:1997-01-20 修回日期:1997-05-04 出版日期:1997-12-25 发布日期:1997-12-25

COMBINED METHODS FOR A CLASS OF PARTITIONED STIFFLY LARGE SYSTEMS

Chen Lirong, Liu Degui   

  1. Beijing Institute of Computer Application and Simulation Technology, 100854
  • Received:1997-01-20 Revised:1997-05-04 Online:1997-12-25 Published:1997-12-25

摘要: 针对分解的刚性大系统提出了组合RK-Rosenbrock(CRKR)方法,该方法分别采用Rosenbrock和显式RK方法在不同的处理机上并行求解刚性和非刚性子系统。文中讨论了算法的构造、收敛性以及数值稳定性,并在微机和多处理机上进行了数值仿真试验。

关键词: 多处理机系统, 刚性大系统, 组合算法

Abstract: The combined RK-Rosenbrock(CRKR) methods are presented for a partitioned systems of stiffly large differential equations.Nonstiff and stiff subsystems are integrated in parallel on two processors by an explicit RK method and a Rosenbrock method respectively.Their construction,convergence and numerical stability are studied,and the numerical simulation experiments are conducted on a personal computer and a parallel computer.

Key words: multicomputer system, stiffly large system, combined methods

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