par Beauwens, Robert 
Référence Mathematics and computers in simulation, 50, 1-4, page (31-41)
Publication Publié, 1999-11
Référence Mathematics and computers in simulation, 50, 1-4, page (31-41)
Publication Publié, 1999-11
Article révisé par les pairs
| Résumé : | Recent advances have shown that block recursive approximate factorizations provide among the best preconditioners for solving elasticity equations on large 3D meshes such as arising in geomechanical applications. However, to get full efficiency of these methods, a wide range of implementation strategies need be put into work. In this contribution, we attempt to survey these strategies and explain their purpose. This includes level orderings and fill-in strategies, diagonal and offdiagonal relaxation, graph perturbations, reduction techniques, W-cycles and smoothing steps. © 1999 IMACS/Elsevier Science B.V. All rights reserved. |
