Articles | Volume 12, issue 4
https://doi.org/10.5194/gmd-12-1423-2019
https://doi.org/10.5194/gmd-12-1423-2019
Development and technical paper
 | 
11 Apr 2019
Development and technical paper |  | 11 Apr 2019

HOMMEXX 1.0: a performance-portable atmospheric dynamical core for the Energy Exascale Earth System Model

Luca Bertagna, Michael Deakin, Oksana Guba, Daniel Sunderland, Andrew M. Bradley, Irina K. Tezaur, Mark A. Taylor, and Andrew G. Salinger

Related authors

MPAS-Albany Land Ice (MALI): a variable-resolution ice sheet model for Earth system modeling using Voronoi grids
Matthew J. Hoffman, Mauro Perego, Stephen F. Price, William H. Lipscomb, Tong Zhang, Douglas Jacobsen, Irina Tezaur, Andrew G. Salinger, Raymond Tuminaro, and Luca Bertagna
Geosci. Model Dev., 11, 3747–3780, https://doi.org/10.5194/gmd-11-3747-2018,https://doi.org/10.5194/gmd-11-3747-2018, 2018
Short summary

Related subject area

Climate and Earth system modeling
Benchmarking GOCART-2G in the Goddard Earth Observing System (GEOS)
Allison B. Collow, Peter R. Colarco, Arlindo M. da Silva, Virginie Buchard, Huisheng Bian, Mian Chin, Sampa Das, Ravi Govindaraju, Dongchul Kim, and Valentina Aquila
Geosci. Model Dev., 17, 1443–1468, https://doi.org/10.5194/gmd-17-1443-2024,https://doi.org/10.5194/gmd-17-1443-2024, 2024
Short summary
Energy-conserving physics for nonhydrostatic dynamics in mass coordinate models
Oksana Guba, Mark A. Taylor, Peter A. Bosler, Christopher Eldred, and Peter H. Lauritzen
Geosci. Model Dev., 17, 1429–1442, https://doi.org/10.5194/gmd-17-1429-2024,https://doi.org/10.5194/gmd-17-1429-2024, 2024
Short summary
Evaluation and optimisation of the soil carbon turnover routine in the MONICA model (version 3.3.1)
Konstantin Aiteew, Jarno Rouhiainen, Claas Nendel, and René Dechow
Geosci. Model Dev., 17, 1349–1385, https://doi.org/10.5194/gmd-17-1349-2024,https://doi.org/10.5194/gmd-17-1349-2024, 2024
Short summary
Assessing the sensitivity of aerosol mass budget and effective radiative forcing to horizontal grid spacing in E3SMv1 using a regional refinement approach
Jianfeng Li, Kai Zhang, Taufiq Hassan, Shixuan Zhang, Po-Lun Ma, Balwinder Singh, Qiyang Yan, and Huilin Huang
Geosci. Model Dev., 17, 1327–1347, https://doi.org/10.5194/gmd-17-1327-2024,https://doi.org/10.5194/gmd-17-1327-2024, 2024
Short summary
Towards the definition of a solar forcing dataset for CMIP7
Bernd Funke, Thierry Dudok de Wit, Ilaria Ermolli, Margit Haberreiter, Doug Kinnison, Daniel Marsh, Hilde Nesse, Annika Seppälä, Miriam Sinnhuber, and Ilya Usoskin
Geosci. Model Dev., 17, 1217–1227, https://doi.org/10.5194/gmd-17-1217-2024,https://doi.org/10.5194/gmd-17-1217-2024, 2024
Short summary

Cited articles

Abdi, D., Giraldo, F., Constantinescu, E., Carr, L., Wilcox, L., and Warburton, T.: Acceleration of the IMplicit-EXplicit nonhydrostatic unified model of the atmosphere on manycore processors, Int. J. High Perform. C., 33, 242–267, https://doi.org/10.1177/1094342017732395, 2017. a
Bertagna, L., Deakin, M., Guba, O., Sunderland, D., Bradley, A., Tezaur, I. K., Taylor, M., and Salinger, A.: E3SM-Project/HOMMEXX: Release-v1.0.0, https://doi.org/10.5281/zenodo.1256256, 2018. a, b
Bhanot, G., Dennis, J. M., Edwards, J., Grabowski, W., Gupta, M., Jordan, K., Loft, R. D., Sexton, J., St-Cyr, A., Thomas, S. J., Tufo, H. M., Voran, T., Walkup, R., and Wyszogrodski, A. A.: Early experiences with the 360TF IBM Bue Gene/L platform, Int. J. Comp.-Meth., 5, 237–253, https://doi.org/10.1142/S0219876208001443, 2008. a
Callahan, D., Dongarra, J., and Levine, D.: Vectorizing compilers: a test suite and results, Proceedings of the 1988 ACM/IEEE conference on Supercomputing (Supercomputing'88), IEEE Computer Society Press, Orlando, Florida, USA, 12–17 November 1988, 98–105, 1988. a
Canuto, C., Hussaini, M., Quarteroni, A., and Zang, T.: Spectral Methods: Evolution to Complex Geometries and Applications to Fluid Dynamics, Scientific Computation, Springer Berlin Heidelberg, 2007. a
Download
Short summary
We use Kokkos, a C++ library for on-node parallelism, to achieve a performance-portable implementation of HOMME, the atmosphere component of the Earth Energy Exascale System Model. The increasing diversity of high-performance computing (HPC) architectures and the demand for higher resolutions create new challenges when writing efficient code. With Kokkos, we obtain a single code base that performs well on current HPC platforms and enables portable performance to future HPC architectures.