HPC Software Infrastructures at German Aerospace Center

Abstract

In the German Research Foundation (DFG) project ESSEX (Equipping Sparse Solvers for Exascale), we develop scalable sparse eigensolver libraries for large quantum physics problems. Partners in ESSEX are the Universities of Erlangen, Greifswald, Wuppertal, Tokyo and Tsukuba as well as DLR. The project pursues a coherent co-design of all software layers where a holistic performance engineering process guides code development across the classic boundaries of application, numerical method and basic kernel library. The ESSEX Sparse Solver Repository (ESSR) supports application driven fault tolerance and is interoperable with many standard numerical solver libraries. ESSR includes the kernel library GHOST (General, Hybrid, and Optimized Sparse Toolkit) as well as the flexible software framework PHIST (Pipelined Hybrid Iterative Solver Toolkit) for implementing iterative methods on HPC systems. The parallel coupling framework FlowSimulator supports airplane engineering. I will describe structure and features of this framework for massively parallel aeronautic simulation. Furthermore, I will briefly sketch the innovative helicopter simulation framework VAST (Versatile Aeromechanic Simulation Tool). HEAT (Helmholtz Analytics Toolkit) is a recent HPC library development in the Helmholtz project HAF (Helmholtz Analytics Framework). It integrates in particular parallel machine learning methods. Finally, I will give a brief survey on our software developments for quantum computers; this is a joint activity of DLR and NASA Ames.