Parallel iterative solvers with selective blocking preconditioning for simulations of fault‐zone contact
Parallel iterative solvers with selective blocking preconditioning for simulations of fault‐zone contact
复制标题
用于模拟断层带接触的具有选择性阻塞预处理的并行迭代求解器
DOI：
10.1002/nla.349
复制
发表时间：
2004
影响因子：
4.3
通讯作者：
H. Okuda
中科院分区：
文献类型：
--
作者：
K. Nakajima;H. Okuda
Iterative solvers with preconditioning are the most powerful choice for large‐scale scientific computation, especially for parallel computing. In non‐linear problems such as contact simulations for geophysics, the condition numbers of the coefficient matrices are usually large due to special constraint conditions. The result is slow convergence of the iterative solver. In this study, a new preconditioning method, called selective blocking is developed along with a special partitioning method for parallel finite‐element simulations on the GeoFEM platform. This newly developed method provides robust and smooth convergence and excellent parallel performance in 3D solid mechanics simulations for geophysics with contact conditions performed on a Hitachi SR2201 parallel computer with 128 processing elements. Copyright © 2004 John Wiley & Sons, Ltd.
