Articles | Volume 13, issue 4
Geosci. Model Dev., 13, 1885–1902, 2020
https://doi.org/10.5194/gmd-13-1885-2020

Special issue: The Australian Community Climate and Earth System Simulator:...

Geosci. Model Dev., 13, 1885–1902, 2020
https://doi.org/10.5194/gmd-13-1885-2020

Development and technical paper 16 Apr 2020

Development and technical paper | 16 Apr 2020

Parallel I∕O in Flexible Modelling System (FMS) and Modular Ocean Model 5 (MOM5)

Rui Yang et al.

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Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Rui Yang on behalf of the Authors (15 Mar 2020)  Author's response    Manuscript
ED: Publish subject to technical corrections (18 Mar 2020) by Olivier Marti
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Short summary
Parallel I/O is implemented in the Modular Ocean Model (MOM) with optimal performance over a range of tuning parameters of model configuration, netCDF, MPI-IO and Lustre filesystem. The scalable parallel I/O performance is observed at 0.1° resolution global model, and it could achieve up to 60 times faster in write speed relative to serial single-file I/O running on 960 PEs.