Articles | Volume 18, issue 10
https://doi.org/10.5194/gmd-18-3017-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gmd-18-3017-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Development and technical paper
| 
26 May 2025
Development and technical paper |
| 26 May 2025
| 26 May 2025
A GPU parallelization of the neXtSIM-DG dynamical core (v0.3.1)
Robert Jendersie
CORRESPONDING AUTHOR
Institute of Simulation and Graphics, Otto von Guericke University, Magdeburg, Germany
Institute of Analysis and Numerics, Otto von Guericke University, Magdeburg, Germany
Christian Lessig
Institute of Simulation and Graphics, Otto von Guericke University, Magdeburg, Germany
European Centre for Medium-Range Weather Forecasts, Bonn, Germany
Thomas Richter
Institute of Analysis and Numerics, Otto von Guericke University, Magdeburg, Germany
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To manage Earth in the Anthropocene, new tools, new institutions, and new forms of international cooperation will be required. Earth Virtualization Engines is proposed as an international federation of centers of excellence to empower all people to respond to the immense and urgent challenges posed by climate change.
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Sea ice covers not only the pole regions but affects the weather and climate globally. For example, its white surface reflects more sunlight than land. The oceans around the poles are therefore kept cool, which affects the circulation in the oceans worldwide. Simulating the behavior and changes in sea ice on a computer is, however, very difficult. We propose a new computer simulation that better models how cracks in the ice change over time and show this by comparing to other simulations.
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Short summary
Accurate computer simulations are critical to understanding how climate change will affect local communities. An important part of such simulations is sea ice, which affects even distant areas in the long term. In our work, we explore how GPUs (graphics processing units), computer chips originally designed for gaming allow for faster simulation of sea ice with a new software, the neXtSIM-DG dynamical core. We discuss multiple options and demonstrate that using GPUs makes more accurate simulations feasible.
Accurate computer simulations are critical to understanding how climate change will affect local...
