Tag ufs-v1.1.0

Release Notes

A release description is provided here.

Known Bugs

• Documentation only: In this chapter of the UFS MRW App v1.1.0 release, mentions of directory SourceMods/src.fv3gfs should actually be SourceMods/src.ufsatm.

• Processing NetCDF initial conditions files: On some systems (cheyenne) additional computational resources will be needed to pre-process the initial conditions files in NetCDF format. On cheyenne, to ensure sufficient memory for the pre-processing step, add ./xmlchange tasks_per_node 4 before running the case.submit command. This will use 12 processors across 3 nodes, providing sufficient memory. If additional tasks are required, edit the file ufs-mrweather-app/src/model/FV3/cime/cime_config/buildnml and change lines 896-899 to increase the task_count for the pre-processing step.

• Output file intervals for the GFSv16beta case are set incorrectly by default, resulting in identical files being written for 3 hourly outputs (i.e. hour 0,1 and 2 are all identical). To workaround this issue, add this variable to your user_nl_ufsatm file in your CASE directory prior to running case.submit. See https://ufs-mrweather-app.readthedocs.io/en/ufs-v1.1.0/faq.html#how-do-i-change-a-namelist-option-for-chgres-cube-or-the-model for additional info.

fhmaxhf = 240.0

Tag ufs-v1.0.0

Release Notes

A release description is provided here.

Known Bugs

• CIME: If a user sets STOP_OPTION as “nseconds” using xmlchange command, the stop time of the simulation is calculated incorrectly. Actually, it is a bug in buildnml and STOP_N needs to be divided by 3600 rather than 60.

• This release no longer works out-of-the box on the Jet and Hera platforms due to an upgrade of the computational environment. For a work around, see this https://forums.ufscommunity.org/threads/module-files-loading-problem-hera-and-jet.

• The NCEI data server for retrieval of raw initial conditions in GRIB2 format is offline. A solution was provided with the v1.1.0 release.

• Also see Known Bugs for NCEPLIBS and NCEPLIBS-external tag ufs-v1.0.0.