%0 Journal Article %T High-performance finite-element simulations of seismic wave propagation in three-dimensional non linear inelastic geological media %+ Bureau de Recherches Géologiques et Minières (BRGM) (BRGM) %+ Advanced 3D Numerical Modeling in Geophysics (Magique 3D) %+ Institut Universitaire de France (IUF) %+ High-End Parallel Algorithms for Challenging Numerical Simulations (HiePACS) %A Dupros, Fabrice %A de Martin, Florent %A Foerster, Evelyne %A Komatitsch, Dimitri %A Roman, Jean %< avec comité de lecture %@ 0167-8191 %J Parallel Computing %I Elsevier %V 36 %P 308-325 %8 2010-01 %D 2010 %R 10.1016/j.parco.2009.12.011 %K seismic numerical simulation %K finite-element method %K parallel sparse direct solver %K nonlinear soil behaviour %Z Sciences of the Universe [physics]/Earth SciencesJournal articles %X 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. %G English %2 https://brgm.hal.science/hal-00537930/document %2 https://brgm.hal.science/hal-00537930/file/Dupros_parco_2010_ref6125.pdf %L hal-00537930 %U https://brgm.hal.science/hal-00537930 %~ BRGM %~ CNRS %~ INRIA %~ UNIV-PAU %~ LMA-PAU %~ INRIA-BORDEAUX %~ INRIA_TEST %~ TESTALAIN1 %~ TESTBORDEAUX %~ INRIA2 %~ GENCI %~ UPPA-OA