Articles | Volume 10, issue 10
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

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.