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Recent Crash Test Results Highlight the Need for Enhanced Simulation

IIHS small crash

In July the Insurance Institute for Highway Safety (IIHS) published crash test results for the “small overlap front crash test,” in which only one of the 12 cars tested earned a “good” rating.  These results, combined with the results of earlier tests, led Consumer Reports to publish a headline reading, “Most Small Cars Bomb New Small-Overlap Crash Test.” At the same time, Nissan presented an excellent paper on the computer simulation challenges of the small overlap test. This is an example of the increasingly stringent requirements for automotive safety and why the use of high performance computing (HPC) for crash safety simulation is critical in the automotive design process. There are dozens of crash load cases evaluated … [Read more...]

Supercomputers: The Solution to Physical Test Limitations in Automotive Manufacturing

During the past few decades the world of science has changed, moving from physical experimentation alone to an environment in which simulations are of primary importance. In the automotive industry, research and design is now so advanced that it’s following in the footsteps of science and moving away from physical testing. Supercomputing has allowed automobile manufacturers to transition to a simulation-driven world. The innovative use of new materials in vehicle design is becoming the norm for automotive manufacturers — honeycomb structures and increased aluminum use being an example. With more advanced design elements coming into play, numerous manufacturing challenges are emerging; including the need for a greater number of … [Read more...]

Record LS-DYNA “car2car” Performance Paves the Way for Future Crash/Safety Simulation

Altair Webcast

A Cray supercomputer has set a speed record in a crash/safety simulation used by the automotive and aerospace industries. Leveraging the scalability of the Aries interconnect in the Cray® XC30™ supercomputer, engineers ran the “car2car” model, a 2.4-million element crash/safety simulation, in under 1,000 seconds. The LS-DYNA results are posted on, the site that was created to track the performance of HPC systems on actual engineering applications codes. In addition to the job turnaround record (931 seconds), the result set a record for the level of parallelism (3,000 cores). As the automotive and aerospace industries continue to run larger and more complex simulations, the performance and scalability of the … [Read more...]

HPC Centers Role in Driving CAE Simulation


My recent blog posts have focused on performance enhancements to CAE applications and especially the scalability of ISV applications. A key point of this discussion is that it takes team effort to achieve these results. You need production models from the user community, the cooperation of application developers and computational scientists, access to large compute resources, and HPC system expertise. In this blog, I want to highlight the critical role HPC centers play in providing resources and expertise to improve the performance and effectiveness of CAE simulation for manufacturing companies. Leading HPC Centers Several of the largest HPC systems in the world are located at national HPC research centers. These centers are often … [Read more...]

Scaling Performance of Explicit Structural Applications

manufacturing-mechanical-vert (1)

A few months back I wrote a blog on “Extreme Scaling in CAE Applications” which showed results for CFD applications scaling to over 10,000 cores. This blog will focus on the scaling performance of explicit structural analysis applications (often referred to as “crash simulation” applications). There has been increased emphasis and significant improvements in the scaling of the explicit structural codes. Because these codes are important across several industries, this work merits a separate post. Background The most popular explicit structural analysis codes are Abaqus/Explicit, LS-DYNA®, PAM-CRASH®, and RADIOSS®. These applications are heavily used in the automotive industry for crash and safety analysis. They are also … [Read more...]