ctsm5.4.028

[CTSM Gatekeeper]

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Tag name: ctsm5.4.028
Originator(s): erik (Erik Kluzek,UCAR/TSS,303-497-1326)
Date: Thu Mar 26 03:27:33 PM MDT 2026
One-line Summary: Update to cmeps version with roundoff changes when running with CISM

Purpose and description of changes
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Update to a cmeps tag that includes roundoff level changes when running with CISM.

Bugs fixed
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List of CTSM issues fixed (include CTSM Issue # and description) [one per line]:
Fixes #3823 -- Update to cmeps1.0.36/37 with roundoff answer changes
Some on #3840 -- Tests needing longer wallclock

Notes of particular relevance for developers:
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Changes to tests or testing:
A few tests had wallclock time extended

Contributors: @billsacks

Testing summary:
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[PASS means all tests PASS; OK means tests PASS other than expected fails.]

build-namelist tests (if CLMBuildNamelist.pm has changed):

derecho - OK (namelist identical to before)

python testing (if python code has changed; see instructions in python/README.md; document testing done):

derecho - PASS

regular tests (aux_clm: https://github.com/ESCOMP/CTSM/wiki/System-Testing-Guide#pre-merge-system-testing):

derecho ----- OK
izumi ------- OK

If the tag used for baseline comparisons was NOT the previous tag, note that here:


Answer changes
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Changes answers relative to baseline: Yes, but just for longer simulations with CISM active

Summarize any changes to answers, i.e.,
- what code configurations: CISM active compsets
- what platforms/compilers: All
- nature of change: roundoff

Other details
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List any git submodules updated (cime, rtm, mosart, cism, fates, etc.):
cmeps to cmeps1.0.37
share to share1.1.19 (needed in order for the cmeps submodule to build)

Pull Requests that document the changes (include PR ids):
(https://github.com/ESCOMP/ctsm/pull)

-- #3841 Update cmeps to answer changing tag cmeps1.0.37

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