White Papers
39 Dell HPC System for Manufacturing—System Architecture and Application Performance
4.6 LSTC LS-DYNA
LSTC LS-DYNA is a multi-physics Finite Element Analysis (FEA) software commonly used in multiple
engineering disciplines. Depending on the specific problem types, FEA applications may or may not scale
well across multiple processor cores and servers. The two benchmark problems presented here use the
LS-DYNA explicit solver, which typically scales much more efficiently than the implicit solver. In the
subsequent sections, data is presented for the Explicit Building Block systems because the characteristics
of the LS-DYNA explicit solver are most appropriate for this building block type.
The performance results for LS-DYNA are presented by using the Elapsed Time metric. This metric is the
total elapsed time for the simulation in seconds as reported by LS-DYNA. A lower value represents better
performance.
Figure 34 shows the relative performance of the three compute building block types for the LS-DYNA
Car2Car benchmark. For this comparison, all processor cores in the individual building blocks are utilized
while running LS-DYNA; GPUs are not used. This comparison demonstrates that for the LS-DYNA explicit
solver, application performance is primarily determined by processor performance. The Intel Xeon E5-
2697A v4 processor used in the Explicit BB is a good choice for LS-DYNA.
Figure 34 Performance of Individual Building Blocks—LSTC LS-DYNA
0
1,000
2,000
3,000
4,000
5,000
6,000
ElapsedTime(lowerisbetter)
LS‐DYNAwithPlatformMPI
SingleSystemPerformance—LS‐DYNACar2Car
ExplicitBB
ImplicitBB
ImplicitGPGPUBB
(CPUOnly)