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

Hoffmann, Lars; Baumeister, Paul F.; Cai, Zhongyin; Clemens, Jan; Griessbach, Sabine; Günther, Gebhard; Heng, Yi; Liu, Mingzhao; Haghighi Mood, Kaveh; Stein, Olaf; Thomas, Nicole; Vogel, Bärbel; Wu, Xue; Zou, Ling

doi:https://doi.org/10.5194/gmd-15-2731-2022

Articles | Volume 15, issue 7

Geosci. Model Dev., 15, 2731–2762, 2022

https://doi.org/10.5194/gmd-15-2731-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Geosci. Model Dev., 15, 2731–2762, 2022

https://doi.org/10.5194/gmd-15-2731-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 15, issue 7

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.

Supplement

https://doi.org/10.5194/gmd-15-2731-2022-supplement

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

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.