JUWELS (Jülich Wizard for European Leadership Science) is regarded as a milestone in the development of a new generation of flexible, modular supercomputers that target an extended range of tasks, from big data applications to computational simulations. With his first module it qualified as number 1 of the German computers for the TOP500 list of the fastest computers in the world.
Supercomputers help to understand complex interrelationships in research, for example in climate research or neuroscience. But they are also increasingly being used in many other areas. In addition to classical applications such as simulations in engineering, physics or chemistry, supercomputers are increasingly being used for other tasks involving the evaluation of large amounts of data or machine learning and artificial intelligence (AI). JUWELS has a modular design to meet such different requirements. Thomas Lippert, Director of the Jülich Supercomputing Centre, sees this approach as the key to an affordable and energy-efficient technology with which the coming exascale systems in particular can be realised.
Lippert's concept of an adaptable design - also known as "Smart Exascale" - has developed into a comprehensive European project in recent years and has been turned into reality in the EU research project DEEP. Since 2011, experts from 16 European partners have been working on DEEP projects funded by the EU.
The modular concept provides for a supercomputer consisting of several specialized modules that can be dynamically and flexibly combined as required via software. The cluster module delivered in spring 2018 by French IT company Atos together with the software specialists of the German company ParTec is equipped with Intel Xeon 24-core Skylake CPUs. This results in a theoretical peak performance of up to 12 petaflops, roughly equivalent to the computing power of 60,000 PCs. The nodes are interconnected by a Mellanox InfiniBand high-speed network with transfer rates of up to 200 Gb/s.