Seminar Series & HPC Café: Computation & Data

Seminar Series @16:00-17:00 (hybrid) & HPC Café @17:00-18:00 (on-site)

4:00-5:00 (hybrid): Scientific Talk by Piet Jarmatz (HSU/UniBw H)

Parallel in Time Molecular-continuum Flow Simulation

Fluid flow phenomena play an important role across a spectrum of disciplines in science and engineering. Since experiments are not always an efficient or feasible way to study them, computer simulations of these phenomena have turned out to be one of the essential tools for progress in this area. However, computational fluid dynamics is a challenging field, especially when characteristics on multiple length and time scales need to be captured. Coupled methods are one way to simulate such a flow. A molecular-continuum coupling simulation software is given by MaMiCo, an open source coupling framework with modular software design for massively parallel execution on high-performance computing systems.

Parallel-in-time integration allows to expand a coupled simulation to multiple temporal scales. An implementation based on a variant of the Parareal algorithm is presented here, where a Lattice Boltzmann solver is used as hydrodynamic predictor to supervise the microscopic system in time. This parallel-in-time coupled molecular dynamics-Lattice Boltzmann approach is a way to enhance multiscale flow simulations, leading to significantly improved scalability on HPC systems such as HSUper.

5:00-6:00 (on-site): HPC Café with Ruben Horn (HSU/UniBw H) on Cerebras

What is the HPC Café? 
At the HPC Café, we offer you practical support in aspects of High Performance Computing and related fields – using a peer-to-peer approach. This means you can bring your specific questions, whether they’re about software, code optimization, or parallelization as well as specific questions regarding ANSYS, GNU, User Spack – you name it. We will help you directly or connect you with other researchers facing similar challenges.      

Our offer is open to all user groups – whether you’re a beginner or an advanced user. Even if you are reading about HPC for the first time and you are interested in more information, the HPC Café is just the right space for you to connect with people working in this field. 

Stop by, bring your challenges, and let’s find solutions together!