中国科学院软件研究所机构知识库
Advanced  
ISCAS OpenIR  > 并行计算实验室  > 会议论文
题名:
a fully implicit domain decomposition algorithm for shallow water equations on the cubed-sphere
作者: Yang Chao ; Cao Jianwen ; Cai Xiao-Chuan
会议文集: SIAM Journal on Scientific Computing
会议名称: 10th Copper Mountain Conference on Iterative Methods
会议日期: APR 06-11,
出版日期: 2010
会议地点: Copper Mt, CO
关键词: shallow water equations ; cubed-sphere ; fully implicit method ; domain decomposition ; Newton-Krylov-Schwarz ; parallel scalability
出版者: SIAM JOURNAL ON SCIENTIFIC COMPUTING
出版地: 3600 UNIV CITY SCIENCE CENTER, PHILADELPHIA, PA 19104-2688 USA
ISSN: 1064-8275
ISBN: 9780820000000
部门归属: Yang, Chao; Cao, Jianwen Chinese Acad Sci, Inst Software, Beijing 100190, Peoples R China. Cai, Xiao-Chuan Univ Colorado, Dept Comp Sci, Boulder, CO 80309 USA.
英文摘要: Popular approaches for solving shallow water equations (SWEs) for climate modeling are explicit and semiimplicit methods, and both have certain constraints on the time step size. In this paper, we propose and study a fully implicit method which imposes no limit on the time step size but requires the solution of a large sparse nonlinear system of equations at every time step. The focus of the paper is a parallel, fully coupled, Newton-Krylov-RAS algorithm with a Jacobian matrix explicitly calculated on a weakly nonmatching cubed-sphere mesh. Here, RAS is a restricted additive Schwarz method. We show numerically that with such a preconditioned, nonlinearly implicit method the time step size is no longer constrained by the CFL condition, and we report superlinear speedup of the algorithm on machines with thousands of processors for problems with smooth and nonsmooth solutions.
内容类型: 会议论文
URI标识: http://ir.iscas.ac.cn/handle/311060/8592
Appears in Collections:并行计算实验室 _会议论文

Files in This Item:
File Name/ File Size Content Type Version Access License
a fully implicit domain decomposition algorithm for shallow water equations on the cubed-sphere.pdf(3838KB)----限制开放-- 联系获取全文

Recommended Citation:
Yang Chao,Cao Jianwen,Cai Xiao-Chuan. a fully implicit domain decomposition algorithm for shallow water equations on the cubed-sphere[C]. 见:10th Copper Mountain Conference on Iterative Methods. Copper Mt, CO. APR 06-11,.
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Yang Chao]'s Articles
[Cao Jianwen]'s Articles
[Cai Xiao-Chuan]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Yang Chao]‘s Articles
[Cao Jianwen]‘s Articles
[Cai Xiao-Chuan]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2017  中国科学院软件研究所 - Feedback
Powered by CSpace