Replicability of the EC-Earth3 Earth system model under  a change in computing environment

Massonnet, François; Ménégoz, Martin; Acosta, Mario; Yepes-Arbós, Xavier; Exarchou, Eleftheria; Doblas-Reyes, Francisco J.

doi:https://doi.org/10.5194/gmd-13-1165-2020

Articles | Volume 13, issue 3

https://doi.org/10.5194/gmd-13-1165-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/gmd-13-1165-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 13, issue 3

Development and technical paper

|

12 Mar 2020

Development and technical paper |

| 12 Mar 2020

Replicability of the EC-Earth3 Earth system model under a change in computing environment

François Massonnet, Martin Ménégoz, Mario Acosta, Xavier Yepes-Arbós, Eleftheria Exarchou, and Francisco J. Doblas-Reyes

Data sets

plesager/ece3-postproc: CMIP6-ready P. Le Sager, E. Tourigny, P. Davini, and A. Ramos https://doi.org/10.5281/zenodo.3474777

Reproducibility of an Earth System Model under a change in computing environment: Test Case M. Acosta, X. Yepes, F. Massonnet, and M. Menegoz https://doi.org/10.23728/b2share.1931aca743f74dcb859de6f37dfad281

Short summary

Earth system models (ESMs) are one of the cornerstones of modern climate science. They are usually run on high-performance computers (HPCs). Whether the choice of HPC can affect the model results is a question of importance for optimizing the design of scientific studies. Here, we introduce a protocol for testing the replicability of the EC-Earth3 ESM across different HPCs. We find the simulation results to be replicable only if specific precautions are taken at the compilation stage.