Operating since 1987 the Jülich Supercomputing Centre (JSC) at Forschungszentrum Jülich was the first German supercomputing centre, and with the Jülich Institute for Advanced Simulation is continuing a long tradition of scientific computing at Jülich. HPC resources of the highest performance levels are made available to researchers in Germany and Europe by means of an independent peer-review process, and currently JSC operates one of the most powerful supercomputers in Europe, JUQUEEN.

About 200 experts and contacts covering all aspects of supercomputing and simulation sciences work at JSC. JSC's research and development concentrates on mathematical and numerical modelling, especially parallel algorithms for quantum chemistry, molecular dynamics and Monte-Carlo simulations. The focus in computer sciences is on cluster computing, performance analysis of parallel programs, visualization, computational steering and federated data services.

Services for POP are provided by the SoftWare Analysis and Tools (SWAT) Team of the JSC Application Support division. The mission of this division is support of HPC users and efficient usage of their applications on HPC systems at Forschungszentrum Jülich. Traditionally our users are based at German universities, national research institutes, and the Research Centre itself; but increasingly they come from European institutes outside Germany, from industry, and from European infrastructure projects like PRACE, LinkSCEEM, ESMI, and SOPHIA, in which our institute is actively involved.

Responsibilities of the SWAT Team include:

• optimizing user application codes
• training HPC users in performance analysis as part of PRACE PATC and VI-HPS training activities, as well as summer and winter schools
• designing, implementing and maintaining performance tools based around the Scalasca toolset
• participating in national and international research projects and the Jülich Exascale efforts IESP/BDEC, EESI, EIC, and ECL