P37 - Preparing a High-Order Incompressible Flow Solver for Next Generation Supercomputers
Presenter
DescriptionGraphics Processing Units (GPUs) are commonplace in modern high-performance computing systems. Of particular interest to us, several upcoming supercomputers in Europe will predominantly use AMD GPU to accelerate their computations. One of the application domains particularly affected by this shift to GPUs is high-fidelity computational fluid dynamics, where large-scale simulations are a necessity. To leverage the computing power of future supercomputers we need our solvers to cater to these new processing units. In this work, we describe our development process of the high-fidelity incompressible flow solver Neko which is based on the spectral element method, and how we design Neko to accommodate modern accelerators. We discuss how we offload our computations through a modern Fortran framework and describe the differences we have observed between Nvidia and AMD GPUs. We provide results with regards to scaling and performance on modern AMD GPUs for this type of solver. In addition to performance results, we show an overview of current production runs and efforts using Neko where we utilize the new computer hardware to make new large-scale detailed simulations of turbulent flows at high Reynolds numbers.
TimeTuesday, June 289:00 - 11:00 CEST
LocationFoyer 2nd Floor
Event Type
Poster
