%0 Conference Proceedings %T Distributed Nonsmooth Contact Domain Decomposition (NSCDD): Algorithmic Structure and Scalability %+ Laboratoire de Mécanique et Génie Civil (LMGC) %+ Laboratoire de Mécanique des Structures Industrielles Durables (LAMSID - UMR 8193) %+ Laboratoire de Mécanique des Contacts et des Structures [Villeurbanne] (LaMCoS) %+ Réseaux, Moyens Informatiques, Calcul Scientifique (Remics) %+ Modélisation Mathématique en Mécanique (M3) %A Visseq, Vincent %A Martin, Alexandre %A Dureisseix, David %A Dubois, Frédéric %A Alart, Pierre %Z This work was partly supported by OSEO, FEDER and the region of Languedoc-Roussillon (Degrip project) %Z A draft (preprint) version of the publication is available at http://dd21.inria.fr/pdf/visseqv_contrib.pdf %< avec comité de lecture %Z LMGC:12-191 %( Lecture Notes in Computational Science and Engineering %B 21st International Conference on Domain Decomposition Methods (DD 21) %C Rennes, France %Y Jocelyne Erhel %Y Martin J. Gander %Y Laurence Halpern %Y Géraldine Pichot %Y Taoufik Sassi %Y Olof Widlund %I Springer %3 Domain Decomposition Methods in Science and Engineering XXI %V 98 %P 627-636 %8 2012-06-25 %D 2012 %R 10.1007/978-3-319-05789-7_60 %Z Engineering Sciences [physics]/Mechanics [physics.med-ph]/Structural mechanics [physics.class-ph] %Z Physics [physics]/Mechanics [physics]/Structural mechanics [physics.class-ph]Conference papers %X Numerical simulations of the dynamics of discrete structures in presence of numerous impacts with frictional contacts leads to CPU-intensive large time computations. To deal with these problems, numerical tools have been developed, such as the nonsmooth contact domain decomposition (NSCDD). We present further a distributed version of its algorithm with parallel detection of fine contacts and discuss two possible communication schemes to solve the interface problem. Those improvements allow to study scalability and numerical performances of the method for 2D and 3D granular media. %G English %2 https://hal.science/hal-01034277/document %2 https://hal.science/hal-01034277/file/visseqv_preprint3.pdf %L hal-01034277 %U https://hal.science/hal-01034277 %~ CEA %~ CNRS %~ INSA-LYON %~ LAMCOS %~ LMGC %~ MIPS %~ EDF %~ UNIV-MONTPELLIER %~ INSA-GROUPE %~ UDL %~ UM-2015-2021