Articles | Volume 10, issue 10
Geosci. Model Dev., 10, 3679–3693, 2017
https://doi.org/10.5194/gmd-10-3679-2017

Special issue: The Modular Earth Submodel System (MESSy) (ACP/GMD inter-journal...

Geosci. Model Dev., 10, 3679–3693, 2017
https://doi.org/10.5194/gmd-10-3679-2017

Development and technical paper 10 Oct 2017

Development and technical paper | 10 Oct 2017

GPU-accelerated atmospheric chemical kinetics in the ECHAM/MESSy (EMAC) Earth system model (version 2.52)

Michail Alvanos and Theodoros Christoudias

Model code and software

MECCA – KPP Fortran to CUDA source-to-source pre-processor. M. Alvanos and T. Christoudias https://doi.org/10.5281/zenodo.546811

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Short summary
We present an application of GPU accelerators in Earth system modeling. We developed software that generates CUDA kernels for numerical integration in the global climate model EMAC, used to study climate change and air quality. We focus on atmospheric chemical kinetics, the most computationally intensive task in climate–chemistry simulations. This approach can serve as the basis for hardware acceleration of numerous geoscientific models that rely on KPP for chemical kinetics applications.