Large-Scale Parallel Finite Element Analysisfor Solid Earth Problems by GeoFEM
Large-Scale Parallel Finite Element Analysisfor Solid Earth Problems by GeoFEM
复制标题
利用 GeoFEM 对固体地球问题进行大规模并行有限元分析
DOI：
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发表时间：
2001
期刊：
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通讯作者：
G. Yagawa
中科院分区：
文献类型：
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作者：
G. Yagawa
日本科学技术振兴机构从1997财政年度开始启动“地球模拟器项目”，试图通过放置在超级计算机中的虚拟地球来模拟预测各种地球现象。 GeoFEM 通过对固体地球问题（包括地球内部的动力学和传热）进行建模和计算，对日本岛屿附近的板块和地幔活动的长期预测提出了挑战。本文描述了 GeoFEM 中采用的计算策略、其并行/矢量性能以及实际工程问题和固体地球问题的计算结果，例如日本岛附近的板块接触和旋转双球体的自然对流（核心动力学）。在计算策略中，详细介绍了线性方程求解器及其预处理。报告日期 2001 年 9 月 28 日 总数第 73 页 本报告的任何其他识别信息已提交给“工业数学调查”信息科学与技术研究组织 (RIST) 2-2-54, Nakameguro, Meguro-ku Tokyo, 153-0061, Japan 电话：+81-3-3712-5321 传真： +81-3-3712-5552 http://geofem.tokyo.rist.or.jp/ 版权所有©2001 信息科学与技术研究组织 (RIST)
The Science and Technology Agency, Japan, has begun 'Earth Simulator Project' from the fiscal year of 1997, which tries to forecast various earth phenomena through the simulation of virtual earth placed in a supercomputer. GeoFEM challenges for long-term prediction of the activities of the plate and mantle near the Japanese islands through the modeling and calculation of the solid earth problems, including the dynamics and heat transfer inside the earth. In this paper, computational strategies employed in GeoFEM, its parallel/vector performances and computational results of practical engineering problems and solid earth problems, such as the contact of plates near the Japan island and the natural convection of rotating double sphere ( core dynamics ) are described. Among the computational strategies, the linear equation solver and its preconditioning are detailed. REPORT DATE September 28, 2001 TOTAL NO. OF PAGES 73 ANY OTHER IDENTIFYING INFORMATION OF THIS REPORT submitted to 'Surveys on Mathematics in Industry' Research Organization for Information Science & Technology (RIST) 2-2-54, Nakameguro, Meguro-ku Tokyo, 153-0061, Japan TEL: +81-3-3712-5321 FAX: +81-3-3712-5552 http://geofem.tokyo.rist.or.jp/ Copyright©2001 Research Organization for Information Science & Technology (RIST)