Work on optimizing and enabling scientific HPC codes on NVIDIA GPUs using CUDA and OpenACC.Continued work on the QUDA library for Lattice QCD on NVIDIA GPUs.

Research in theoretical physics: properties of strongly-interacting matter (QCD) at finite temperatures and densities• focus on fluctuations of conserved charges• using ab-initio Lattice QCD calculationsDevelopment and porting of Lattice QCD codes for the MILC collaboration to GPUs• using CUDA• using the QUDA libraryContinued work on Lattice QCD codes developed in Bielefeld

Research in theoretical physics: properties of strongly-interacting matter (QCD) at finite temperatures and densities• focus on fluctuations of conserved charges• using ab-initio Lattice QCD calculations• using effective modelsResearch in using algorithmic differentiation techniques in high-energy physicsDevelopment and optimization of a new Lattice QCD code for molecular dynamics (RHMC) on GPUs• running completely in GPU memory• using CUDA• Code used for production runs on GPU clusters at Bielefeld University, Jefferson Laboratory, Paderborn University, Indiana University and on TianHe 1aDevelopment and Optimization of a existing code for measurements on GPUs• increasing the arithmetic intensity by exploring different levels of parallelism and features of the GPU architecture• optimizations for Nvidia Fermi and Kepler GPU architectures• code used for running on GPU clusters at Bielefeld University, Indiana University, Jefferson Laboratory, Paderborn University and supercomputers Titan and TianHe 1aAdministration of the Bielefeld GPU cluster• focus on the GPUs, hardware tests, driver tests, compiler tests

Research in theoretical physics: properties of strongly-interacting matter (QCD) at finites temperatures and densities• using effective models• exploring chiral and confinement aspectsResearch in using algorithmic differentiation techniques in high-energy physics to numerically calculate derivatives at machine precision• development of techniques to apply methods to implicitly defined functionsLinux System Administration (Desktop systems)Linux System Administrations (Web, Mailserver, …) for the Nuclear Theory Groups