Fujitsu’s Activities in Improving Performance of LS-DYNA Nonlinear Finite Element Analysis Software

The LS-DYNA nonlinear finite element analysis software package developed for structural analysis by the Livermore Software Technology Corporation (LSTC) is widely used by the automobile, aerospace, construction, military, manufacturing, and bioengineering industries. Fujitsu has been a partner with LSTC since 1996, supporting customers in Japan. A common application of LS-DYNA is car crash simulation. One way to improve the accuracy of the simulation results is to increase the number of elements in the analytical model. However, this increases the amount of computation, resulting in longer computation times, which goes against user expectations of quicker job turnaround when using high-performance computing systems. We report Fujitsu’s activities in supporting higher speeds in a hybrid version of LS-DYNA applicable to large-scale parallel processing on the K computer and in improving the performance of the LS-DYNA package for car crash simulation.