This webinar focuses on the newest version, nekRS targeting accelerators. It presents the basic concepts of the Nek project and highlights recent large-scale applications. nek5000/nekRS can easily be used (even at scale), for example, as part of the Jupyter-CoEC computing service hosted at the Jülich Supercomputing Centre. This will be demonstrated in the last part of our presentation.
The Nek project, which was started at MIT in the mid-1980s, was designed to combine the speed and efficiency of spectral methods with the geometric flexibility of finite elements. The initial 3D version, Nekton 2.0, was the first commercial CFD software for distributed memory parallel computers and was marketed by Nektonics and ultimately by Fluent in the mid-90s. The research version (aka nek5000) was awarded the 1999 Gordon Bell Prize. Today the code is open source and features state-of-the-art, scalable algorithms that are fast and efficient on platforms ranging from laptops to the world’s fastest computers. Applications span many fields, including fluid flow, thermal convection, combustion, and magnetohydrodynamics. The user community includes 500+ scientists and engineers in academia, laboratories, and industry.