Articles | Volume 15, issue 7
Geosci. Model Dev., 15, 2731–2762, 2022
https://doi.org/10.5194/gmd-15-2731-2022
Geosci. Model Dev., 15, 2731–2762, 2022
https://doi.org/10.5194/gmd-15-2731-2022
Model description paper
05 Apr 2022
Model description paper | 05 Apr 2022

Massive-Parallel Trajectory Calculations version 2.2 (MPTRAC-2.2): Lagrangian transport simulations on graphics processing units (GPUs)

Lars Hoffmann et al.

Data sets

Performance measurements of MPTRAC v2.2 K. Haghighi Mood and L. Hoffmann https://doi.org/10.5281/zenodo.6330715

Model code and software

slcs-jsc/mptrac: v2.2 L. Hoffmann, J. Clemens, J. Holke, M. Liu, and K. Haghighi Mood https://doi.org/10.5281/zenodo.5714528

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Short summary
We describe the new version (2.2) of the Lagrangian transport model MPTRAC, which has been ported for application on GPUs. The model was verified by comparing kinematic trajectories and synthetic tracer simulations for the free troposphere and stratosphere from GPUs and CPUs. Benchmarking showed a speed-up of a factor of 16 of GPU-enabled simulations compared to CPU-only runs, indicating the great potential of applying GPUs for Lagrangian transport simulations on upcoming HPC systems.