Lin Xin-da, Lin Sui, Jiang Wen-chao, Li Dong-ming, Wang Duo-qiang. The Parallel Optimization of Preconditioning for the Finite Element Solution Calculix[J]. Journal of Guangdong University of Technology, 2015, 32(4): 138-144. DOI: 10.3969/j.issn.1007-7162.2015.04.025
Citation:
Lin Xin-da, Lin Sui, Jiang Wen-chao, Li Dong-ming, Wang Duo-qiang. The Parallel Optimization of Preconditioning for the Finite Element Solution Calculix[J]. Journal of Guangdong University of Technology, 2015, 32(4): 138-144. DOI: 10.3969/j.issn.1007-7162.2015.04.025
Lin Xin-da, Lin Sui, Jiang Wen-chao, Li Dong-ming, Wang Duo-qiang. The Parallel Optimization of Preconditioning for the Finite Element Solution Calculix[J]. Journal of Guangdong University of Technology, 2015, 32(4): 138-144. DOI: 10.3969/j.issn.1007-7162.2015.04.025
Citation:
Lin Xin-da, Lin Sui, Jiang Wen-chao, Li Dong-ming, Wang Duo-qiang. The Parallel Optimization of Preconditioning for the Finite Element Solution Calculix[J]. Journal of Guangdong University of Technology, 2015, 32(4): 138-144. DOI: 10.3969/j.issn.1007-7162.2015.04.025
1.School of Computers, Guangdong University of Technology, Guangzhou 510006, China;2.Guangzhou Marine Engineering Design & Research Institute, Guangzhou 510250,China;3.School of Computer Science & Technology, Huazhong University of Science and Technology, Wuhan 430074,China
Aiming at the problems of large scale numerical computing and analysis in ship strength fatigue analysis, this paper presents an improved mechanism with optimized pretreatment of linear equation group iteration at open-source finite element solver Calculix in National Supercomputing Center in Guangzhou. It can resolve the multi-row double threshold incomplete decomposition based on column pivoting and the incomplete LU decomposition proves to proceed. Hence the prototype system has been developed in the center. And the practical experiments and testing results show that the computing time of ship strength fatigue analysis can be reduced effectively.