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William Sawyer is a senior computational scientist at the Swiss National Supercomputing Centre (CSCS), in Lugano, Switzerland, an autonomous branch of the Swiss Federal Institute of Technology, Zurich (ETH). He works in the Scientific Community Engagement group as a liaison between CSCS’s customers – researchers from a variety of scientific disciplines, in particular from Geosciences – and the system engineers and computer scientists who support current and emerging high performance computing solutions. He has more than 20 years of experience in numerical analysis for HPC, and has been active in research at NASA Goddard Space Flight Center, the University of Maryland, as well as CSCS. He is the author of the PLUMP and PILGRIM libraries to support distributed memory linear solvers for unstructured mesh problems. Later he ported the Lin/Rood dynamical core (solver of the equations of atmospheric dynamics) to distributed memory architectures, and more recently, the ICON non-hydrostatic dynamical core to graphics processing units (GPUs). Currently he helping to port of the full ICON model to GPUs. During the last years his interests have grown to include energy-efficient algorithms, and he has been busy in the EU-funded “Exa2Green” project to improve the energy to solution of the Aerosol Reactive Transport (ART) model, a expensive and crucial component in understanding atmospheric chemistry. |
