Partitioning Effects on MPI LS-DYNA Performance

The MPI version of LS-DYNA includes several options for decomposition of the finite element model. In this paper, the use of these options will be explored, for both metalforming and automotive crash simulations for input decks with size ranging from small to very large. The effect on elapsed time performance and scalability will be measured for different partitioning options. In addition, performance characteristics of a workstation cluster will be evaluated.