Distributed Nonsmooth Contact Domain Decomposition (NSCDD): Algorithmic Structure and Scalability

Vincent Visseq (1) , Alexandre Martin (2) , David Dureisseix (3) , Frédéric Dubois (1, 4) , Pierre Alart (1, 5)

1 LMGC - Laboratoire de Mécanique et Génie Civil
2 LAMSID - UMR 8193 - Laboratoire de Mécanique des Structures Industrielles Durables
3 LaMCoS - Laboratoire de Mécanique des Contacts et des Structures [Villeurbanne]
4 Remics - Réseaux, Moyens Informatiques, Calcul Scientifique
5 M3 - Modélisation Mathématique en Mécanique

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.

Domaines: Mécanique des structures [physics.class-ph]; Mécanique des structures [physics.class-ph]

Vincent Visseq, Alexandre Martin, David Dureisseix, Frédéric Dubois, Pierre Alart. Distributed Nonsmooth Contact Domain Decomposition (NSCDD): Algorithmic Structure and Scalability. 21st International Conference on Domain Decomposition Methods (DD 21), Jun 2012, Rennes, France. pp.627-636, ⟨10.1007/978-3-319-05789-7_60⟩. ⟨hal-01034277⟩