High-performance finite-element simulations of seismic wave propagation in three-dimensional non linear inelastic geological media

Fabrice Dupros 1 Florent de Martin 1 Evelyne Foerster 1 Dimitri Komatitsch 2, 3 Jean Roman 4
2 Magique 3D - Advanced 3D Numerical Modeling in Geophysics
LMAP - Laboratoire de Mathématiques et de leurs Applications [Pau], Inria Bordeaux - Sud-Ouest
4 HiePACS - High-End Parallel Algorithms for Challenging Numerical Simulations
LaBRI - Laboratoire Bordelais de Recherche en Informatique, Inria Bordeaux - Sud-Ouest
Abstract : We present finite-element numerical simulations of seismic wave propagation in non linear inelastic geologicalmedia. We demonstrate the feasibility of large scale modeling based on an implicit numerical scheme and a nonlinear constitutive model. We illustrate our methodology with an application to regional scale modeling in the French Riviera, which is prone to earthquakes. The PaStiX direct solver is used to handle large matrix numerical factorizations based on hybrid parallelism to reduce memory overhead. A specific methodology is introduced for the parallel assembly in the context of soil nonlinearity. We analyse the scaling of the parallel algorithms on large-scale configurations and we discuss the physical results.
Type de document :
Article dans une revue
Liste complète des métadonnées

Littérature citée [44 références]  Voir  Masquer  Télécharger

https://hal-brgm.archives-ouvertes.fr/hal-00537930
Contributeur : Marielle Arregros <>
Soumis le : vendredi 19 novembre 2010 - 16:45:45
Dernière modification le : jeudi 9 mai 2019 - 09:40:04
Archivage à long terme le : jeudi 30 juin 2011 - 13:37:56

Fichier

Dupros_parco_2010_ref6125.pdf
Fichiers éditeurs autorisés sur une archive ouverte

Identifiants

Collections

Citation

Fabrice Dupros, Florent de Martin, Evelyne Foerster, Dimitri Komatitsch, Jean Roman. High-performance finite-element simulations of seismic wave propagation in three-dimensional non linear inelastic geological media. Parallel Computing, Elsevier, 2010, 36, pp.308-325. ⟨10.1016/j.parco.2009.12.011⟩. ⟨hal-00537930⟩

Partager

Métriques

Consultations de la notice

802

Téléchargements de fichiers

1948