LISFLOOD-FP 8.2: GPU-accelerated multiwavelet discontinuous Galerkin solver with dynamic resolution adaptivity for rapid, multiscale flood simulation

Chowdhury, Alovya Ahmed; Kesserwani, Georges

doi:10.5194/gmd-18-9827-2025

Articles | Volume 18, issue 23

https://doi.org/10.5194/gmd-18-9827-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/gmd-18-9827-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 18, issue 23

Development and technical paper

|

10 Dec 2025

Development and technical paper |

| 10 Dec 2025

LISFLOOD-FP 8.2: GPU-accelerated multiwavelet discontinuous Galerkin solver with dynamic resolution adaptivity for rapid, multiscale flood simulation

Alovya Ahmed Chowdhury and Georges Kesserwani

Data sets

Dataset for the paper "LISFLOOD-FP 8.2: GPU-accelerated multiwavelet discontinuous Galerkin solver with dynamic resolution adaptivity for rapid, multiscale flood simulation" Alovya Chowdhury https://doi.org/10.5281/zenodo.13909072

Model code and software

LISFLOOD-FP v8.2 hydrodynamic model (8.2) LISFLOOD-FP developers https://doi.org/10.5281/zenodo.13121102

Video supplement

Simulation run guide for the GPU-MWDG2 solver in LISFLOOD-FP 8.2 Alovya Chowdhury https://doi.org/10.5281/zenodo.15851523

Short summary

LISFLOOD-FP 8.2 is a framework for running real-world simulations of rapid, multiscale floods driven by impact events like tsunamis. It builds on the LISFLOOD-FP 8.0 and 8.1 papers published in GMD: whereas LISFLOOD-FP 8.0 focussed on GPU-parallelisation, and LISFLOOD-FP 8.1 focussed on static mesh adaptivity of (multi)wavelets, LISFLOOD-FP 8.2 combines GPU (graphics processing unit)-parallelisation with multiwavelet dynamic mesh adaptivity to drastically reduce simulation runtimes, achieving up to a 4.5-fold speedup.