Profiling of the XXT Coarse grid solver
In Nek5000 the coarse grid solver of the pressure preconditioner has been implemented in two ways. One method is called XXT solver [1] that is based on a Cholesky factorization […]
NEK5000 Progress Update
Recently we performed Nek5000 bencherking tests on several heterogeneous HPC systems, namely Piz Daint at CSCS (Swiss), Longhorn at TACC (U.S.A), JUWELS Boost at Juelich (Germany), and Berzelius at NSC […]
NEK5000 – Successful Preparatory Access Application
Jing Gong has successfully applied for a preparatory access PRACE allocation on the Julich Booster system for ENCCS work on NEK5000. Exascale HPC architectures are increasingly prevalent in the Top500 list, with CPU […]
NEK5000 and LUMI GPU Partitions
One of main tasks for the ENCCS project is to enable Nek5000 to run on LUMI GPU partitions and other Prace Tier-0 heterogeneous systems for large scale simulations. It was […]
NEK5000: Simulating incompressible flow in complex geometries
Nek5000 is an open source code for simulations of incompressible flows in complex geometries. It is widely used in a broad range of applications, including the study of thermal hydraulics […]