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Civil-Comp Proceedings
ISSN 1759-3433
CCP: 24
Edited by: B.H.V. Topping and M. Papadrakakis
Paper II.1

The Effect of a Sparse Solver in LS-NIKE3D

K.N. Chiang, B.L. Shyu and H.H. Fu

National Center for High Performance Computing, Taiwan, ROC

Full Bibliographic Reference for this paper
K.N. Chiang, B.L. Shyu, H.H. Fu, "The Effect of a Sparse Solver in LS-NIKE3D", in B.H.V. Topping, M. Papadrakakis, (Editors), "Advances in Non-Linear Finite Element Methods", Civil-Comp Press, Edinburgh, UK, pp 17-21, 1994. doi:10.4203/ccp.24.2.1
Linear system direct solver is commonly used in the general purpose structural finite element systems such as LSNIKE3D7 ANSYS, and MSC/NASTRAN, etc. In this paper, a robust indefinite sparse solver for the linear/nonlinear finite element program LS-NIKE3D is developed and investigated. Two realistic applications are used to show that the new sparse solver is superior to the conventional blocked Cholesky solver of LS-NIKE3D in both CPU time and disk usage.

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