Ansys Boosts CFD Simulation with NVIDIA Superchips

Ansys announces results of a large Fluent CFD simulation run on NVIDIA GH200 Grace Hopper Superchips. The technology collaboration accelerated simulation by 110x, reducing the overall run time from 4 weeks to 6 hours, according to Ansys. 

Using advanced computing capability at TACC, Ansys collaborated with NVIDIA to run a 2.4-billion-cell automotive external aerodynamics simulation, enabling two separate yet critical outcomes. First, Ansys software solved the computational fluid dynamics (CFD) simulation faster while maintaining the same predictive accuracy. Ansys notes. Second, designers can add more parameters to refine the accuracy without compromising on overall simulation speed, Ansys adds.

Specifically, 320 GH200 Grace Hopper Superchips, with multi-node scaling through NVIDIA Quantum-2 InfiniBand, provided a 110x speed-up over using 2,048 CPU cores, achieving the same performance equivalent to approximately 225,390 CPU cores. In addition, for customers using a typical deployment of GPUs, benchmark data showed that when scaling to 32 GPUs, one NVIDIA GH200 Grace Hopper Superchip delivers the same performance as nearly 1,408 CPU cores, Ansys explains.

“Ansys is committed to delivering increased performance and capability to provide our customers with higher levels of simulation fidelity and engineering insight to accelerate innovation,” says Shane Emswiler, senior vice president of products at Ansys. “Upgrading to the latest GPU technology can enable our customers to save hours of engineering and product development time, where time to market is essential.” 

Ansys has also adopted an Omniverse Blueprint, a reference workflow of NVIDIA acceleration libraries, artificial intelligence frameworks, and Omniverse technologies that enables real-time, interactive physics visualization in Ansys applications.

“The power of NVIDIA GH200 Grace Hopper Superchips enables customers to push the limits of simulation model sizes and complexity,” says Tim Costa, senior director of CAE, EDA and quantum at NVIDIA. “The combination of NVIDIA accelerated computing and Ansys software provides engineers with powerful simulation tools to tackle complex engineering problems and reduce time to market across industries such as automotive, aerospace, manufacturing and more.” 

Sources: Press materials received from the company and additional information gleaned from the company’s website.