We can affirm with quite a certainty that future Exascale systems will be heterogeneous, including accelerators such as GPUs. We can also expect higher variability on the performance of the various computing devices engaged in a simulation; due to the explosion of the parallelism, or other technical aspects such as the hardware-enforced mechanisms to preserve the thermal design limits.

Due to the travel restrictions linked to the corona virus, we have successfully organised our first EXCELLERAT virtual All Hands Meeting with more than 40 participants. Instead of hosting it in Stockholm from 5th until 7th May, this was our team’s largest online conference so far.

Author: Christopher Williams

The program opened with presentations by industrial users of HLRS’s HPC systems. Andreas Link of automotive supplier Mann + Hummel described his team’s computational fluid dynamics (CFD) simulations, which they run at HLRS to optimize car component geometries and reduce noise caused by air flow around them

In November 2019  hosted the successful EXCELLERAT Team meeting in Bologna. The purpose was to show the current success stories of all partners and to discuss how to push the use cases in the direction of exascale.

Author: Niclas Jansson, KTH

Understanding the complex physics of wall-bounded turbulent flows is of utmost importance, considering the presence of this type of flows in various engineering applications. 

Author: Claudio Arlandini, CINECA

The design of the car of the future requires going over the usual RANS approach, since it fails to predict with an acceptable prediction accuracy features like transitional flows, instabilities, noise gneration, combustion efficiency. This in turn requires exascale systems, to sustain more high-fidelity simulations techniques, like LES or DES. EXCELLERAT paves the way to this transition.

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