Geoscientific Model Development
Geoscientific Model Development
GMD
Articles | Volume 19, issue 4
Articles | Volume 19, issue 4
https://doi.org/10.5194/gmd-19-1455-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/gmd-19-1455-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 19, issue 4
Model evaluation paper
 | 
19 Feb 2026
Model evaluation paper |  | 19 Feb 2026

Highly scalable geodynamic simulations with HyTeG

Ponsuganth Ilangovan, Nils Kohl, and Marcus Mohr

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Short summary
Geophysically accurate model of mantle convection requires a mesh with a width on the order of ~1 km. Traditional codes represent the systems of equation by setting up the associated matrix. However, at the scales we want to operate, even forming this matrix is hardly possible. Thus, we use the matrix-free framework HyTeG to create the geophysical model and verify it with numerical experiments while assessing the scalability of the framework and laying out the difficulties involved.
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Special issue
Advances in numerical modelling of geological processes