Development of a Scalable Solver for the Earths Core Convection

摘要：

A scalable parallel solver is developed to simulate the Earths core convection. With the help from the multiphysics data structure and the restricted additive Schwarz preconditioning in PETSc the iterative solution of the linear solver converges rapidly at every time-step. The solver gains nearly 20 times speedup compared to a previous solver using least-squares polynomial preconditioning in Aztec. We show the efficiency and effectiveness of our new solver by giving numerical results obtained on a BlueGene/L supercomputer with thousands of processor cores.

作者: Chao Yang Ligang Li Yunquan Zhang

作者单位: Institute of Software, Chinese Academy of Sciences, Beijing 100190,P.R. China Shanghai Astronomical Observatory, Chinese Academy of Sciences,Shanghai 200030, P.R. China Institute of Software,Chinese Academy of Sciences, Beijing 100190, P.R. China State Key Lab. of Comp

会议类型: 国际会议

会议名称: The Second International Conference on High Performance Computing and Applications(第二届高性能计算及应用国际会议)

会议地点: 上海

会议语种:英文

页码: 497-502

在线出版日期: 2009-08-10（万方平台首次上网日期，不代表论文的发表时间）