numerical simulation of the thermal convection in the earths outer core

	numerical simulation of the thermal convection in the earths outer core
	Yang Chao; Zhang Yunquan; Li Ligang
	2010
会议名称	2010 12th IEEE International Conference on High Performance Computing and Communications, HPCC 2010
会议录名称	Proceedings - 2010 12th IEEE International Conference on High Performance Computing and Communications, HPCC 2010
页码	552-555
会议日期	September
会议地点	Melbourne, VIC, Australia
出版地	United States
ISBN	9780770000000
部门归属	(1) Institute of Software, Chinese Academy of Sciences, Beijing 100190, China; (2) State Key Lab. of Computer Science, Chinese Academy of Sciences, Beijing 100190, China; (3) Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai 200030, China
摘要	Large-scale simulation of the thermal convection in the Earths outer core is studied. Starting from a legacy parallel code using Aztec and MPI, two optimized codes have been developed based on the PETSc software package. The first version gains several times acceleration with the help of the block-Jacobi preconditioners and the well-optimized libraries provided in PETSc. The second version, aiming at better parallel scalability, is developed based on the ideas of domain decomposition method for multi-physical problems. Test results employing thousands of processor cores on three supercomputers, i.e., an IBM BlueGene/L, a Dawning 5000A and a Lenovo DeepComp 7000, are provided. © 2010 IEEE.
关键词	Domain Decomposition Methods Optimization Scalability Supercomputers
主办者	IEEE; IEEE Computer Society; IEEE Technical Committee on Scalable Computing (TCSC)
内容类型	会议论文
URI标识	http://ir.iscas.ac.cn/handle/311060/8842
专题	并行软件与计算科学实验室
推荐引用方式 GB/T 7714	Yang Chao,Zhang Yunquan,Li Ligang. numerical simulation of the thermal convection in the earths outer core[C]. United States,2010:552-555.

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