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UFS Weather Model
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Mixed mode FMS for coupled runs #1062

Closed junwang-noaa closed 1 year ago

DeniseWorthen commented 2 years ago

Need a new CMake flag to use -DConstants=GFS (default is GFDL). HPC-stack issue is open. We can put the change on Acorn (NCEP-libs); EPIC will need to take care of RDHPCS machines. Need WCOSS2 updated in the 2month rotation.

jkbk2004 commented 2 years ago

@junwang-noaa @DeniseWorthen I agree that this is a good timing to make a transition of RDHPCs hpc-stack maintenance to EPIC. I will coordinate on EPIC side.

DeniseWorthen commented 2 years ago

Need code update to dy-core. fms2022.03 was installed acorn. version currently on wcoss2 may have wrong -dconstants present. Need compile fixed on wcoss2; the commit update to dycore for fms 2022.03 asap.

Still no RT for mixed-mode.

Updates for chunking will require 2022.04.

Issue of maintaining different constants vs what is default for FMS; Physics group would need to evaluate change in the values. There is a cross-agency project to use a dictionary to share constant constants.

DeniseWorthen commented 2 years ago

target install is 2022.04 on wcoss2; no current update on when this will actually be installed on wcoss2. in progress.

Moorthi reports that mixed-mode is working fine as you don't care about BL changes due to constants used (C3072 10day case).

DeniseWorthen commented 1 year ago

@binli2337 has opened the PR a test using mixed-model for coupled model. FV3 will be 32-bit but MOM6 will be 64-bit in the new test. ORTs with mixed-mode feature applicable passes.

The coupled model, depending on implementation, will run either 32/64 or 64/64 so we will need to maintain tests for both configurations.

junwang-noaa commented 1 year ago

The code was committed, close issue.