Combined Method for a Class of Partitioned Large Stiff Nonautonomous Systems
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摘要: 针对分解的刚性大系统提出了组合RK-Rosenbrock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.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.Abstract: The combined Runge-Kutta with Rosenbrock 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 numerical simulation experiments are conducted on a personal computer and a parallel computer
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Key words:
- cluster /
- stiff large system /
- combined method /
- MPI
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