LS-DYNA White Paper

Scaling Up LS-DYNA Implicit Analysis

Overcoming performance bottlenecks

Rolls-Royce challenged Cray, Livermore Software Technology Corp. (LSTC) and the National Center for Supercomputing Applications (NCSA) to demonstrate that implicit finite element analyses of large-scale models could be performed in a timely manner using large-scale computing systems.

Then Rolls-Royce created a family of dummy engine models, using solid elements, with as many as 200,000,000 degrees of freedom. NCSA ran these with specialized LS-DYNA variants, generated by Cray, on their “Blue Waters” supercomputer, a hybrid Cray® XE™/XK™ system with 360,000 cores. Processing and memory bottlenecks were revealed as the number of processors increased by an order of magnitude beyond that familiar to today’s developers and users — and LSTC made improvements to LS-DYNA.

Find out more in this white paper, “Increasing the Scale of LS-DYNA Implicit Analysis,” by Cray, LSTC, NCSA and Rolls-Royce.

It takes an in-depth look at:

Challengers the
researchers encountered

Improvements made
to LS-DYNA

The results of
extending scaling limits


The paper was presented at the 15th LS-DYNA International Conference & Users Meeting in 2018.

Download

Explore related resources:

Related Resources

Improving Aerospace Engine Simulation

Cray and LSTC team up to improve a critical LS-DYNA simulation involving over 80 million elements. Learn more in this white paper.

Predicting Complex High-Fidelity Aeroelastic Wing Flutter

High-fidelity simulations of the aeroelastic flutter experienced by an airplane in flight put extreme demands on machine performance. A combination of Cray hardware and ANSYS software scaled a 13.47-million-node simulation to more than 1,000 cores.

Reduce Risk of Test Failure with Fracture Prediction

Cray, Altair and the PSA Groupe teamed up to investigate the modeling and compute requirements necessary for fracture prediction.

Fracture Prediction in Crash & Safety Simulation

Cray, Altair and the PSA Groupe teamed up to investigate the modeling and compute requirements for capturing metal fracture in a side-impact crash.

CTO Report: CAE Simulation Advancement

Cray CTO Steve Scott discusses the growing demand for CAE applications, the technology trends going on in HPC, and the implications of both on current and future computer architectures.

See All Resources