Highly scalable geodynamic simulations with <span style="" class="text smallcaps">HyTeG</span>

Ilangovan, Ponsuganth; Kohl, Nils; Mohr, Marcus

doi:10.5194/gmd-19-1455-2026

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:

Advances in numerical modelling of geological processes

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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Cumulative views and downloads (calculated since 26 Jun 2025)

Month	HTML	PDF	XML	Total
Jun 2025	114	22	6	142
Jul 2025	150	22	12	184
Aug 2025	980	22	8	1,010
Sep 2025	3,576	44	22	3,642
Oct 2025	164	36	2	202
Nov 2025	40	18	6	64
Dec 2025	58	44	14	116
Jan 2026	62	54	8	124
Feb 2026	232	73	8	313
Mar 2026	258	86	17	361
Apr 2026	249	132	19	400
May 2026	237	44	11	292
Jun 2026	27	10	3	40
Jul 2026	64	33	9	106
Aug 2026	60	25	5	90
Sep 2026	178	62	41	281
Oct 2026	189	80	31	300
Nov 2026	66	31	12	109

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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.