Parallel edge-based finite element techniques for Nonlinear solid mechanics

被引:0
作者
Martins, MAD [1 ]
Alves, JLD [1 ]
Coutinho, LGA [1 ]
机构
[1] Univ Fed Rio de Janeiro, COPPE, Ctr Parallel Comp, BR-21945970 Rio De Janeiro, Brazil
来源
VECTOR AND PARALLEL PROCESSING - VECPAR 2000 | 2001年 / 1981卷
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D O I
暂无
中图分类号
TP31 [计算机软件];
学科分类号
081202 ; 0835 ;
摘要
Parallel edge-based data structures are used to improve computational efficiency of Inexact Newton methods for solving finite element nonlinear solid mechanics problems on unstructured meshes composed by tetrahedra or hexaedra. We found that for tetrahedral meshes, the use of edge-based data structures reduce memory requirements to hold the stiffness matrix by a factor of 7, and the number of floating point operations to compute the matrix-vector product needed in the iterative driver of the Inexact Newton method by a factor of 5. For hexahedral meshes the reduction factors are respectively 2 and 3.
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页码:506 / 518
页数:13
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