Articles | Volume 13, issue 3
https://doi.org/10.5194/gmd-13-1165-2020
https://doi.org/10.5194/gmd-13-1165-2020
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

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Cited articles

Acosta, M., Yepes, X., Massonnet, F., and Menegoz, M.: Reproducibility of an Earth System Model under a change in computing environment: Test Case, https://doi.org/10.23728/b2share.1931aca743f74dcb859de6f37dfad281, 2019. a
Añel, J. A.: The importance of reviewing the code, Commun. ACM, 5, 40, https://doi.org/10.1145/1941487.1941502, 2011. a
Añel, J. A.: Comment on “Most computational hydrology is not reproducible, so is it really science?” by Christopher Hutton et al., Water Resour. Res., 53, 2572–2574, https://doi.org/10.1002/2016wr020190, 2017. a
Baker, A. H., Hammerling, D. M., Levy, M. N., Xu, H., Dennis, J. M., Eaton, B. E., Edwards, J., Hannay, C., Mickelson, S. A., Neale, R. B., Nychka, D., Shollenberger, J., Tribbia, J., Vertenstein, M., and Williamson, D.: A new ensemble-based consistency test for the Community Earth System Model (pyCECT v1.0), Geosci. Model Dev., 8, 2829–2840, https://doi.org/10.5194/gmd-8-2829-2015, 2015. a, b, c, d, e
Balsamo, G., Beljaars, A., Scipal, K., Viterbo, P., van den Hurk, B., Hirschi, M., and Betts, A. K.: A revised hydrology for the ECMWF model: Verification from field site to terrestrial water storage and impact in the Integrated Forecast System, J. Hydrometeorol., 10, 623–643, 2009. a
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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.
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