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Create new auxiliary history file for cplhist test with ndep data

enhancementnew capability or improved behavior of existing capabilitynew capability or improved behavior of existing capability

non-b4bChanges answers (incl. adding tests)Changes answers (incl. adding tests)

test: aux_clmPass aux_clm suite before mergingPass aux_clm suite before merging

test: ctsm_sciRun and check ctsm_sci suite before mergingRun and check ctsm_sci suite before merging

Status: Open.

Feature

#1844 In ESCOMP/CTSM;

· adrifoster opened on Sep 2, 2022

b4b: Move the changes to initialize the task decomposition from mpi_scan to main development

b4bbit-for-bitbit-for-bit

code healthimproving internal code structure to make easier to maintain (sustainability)improving internal code structure to make easier to maintain (sustainability)

enhancementnew capability or improved behavior of existing capabilitynew capability or improved behavior of existing capability

performanceidea or PR to improve performance (e.g. throughput, memory)idea or PR to improve performance (e.g. throughput, memory)

Status: Open (in progress).

ESCOMP/CTSMnumber 3666

#3666 In ESCOMP/CTSM;

· ekluzek opened on Dec 16, 2025

Update cdeps with updated CPLHIST data

blocked: dependencyWait to work on this until dependency is resolvedWait to work on this until dependency is resolved

enhancementnew capability or improved behavior of existing capabilitynew capability or improved behavior of existing capability

externalissue needs to be addressed elsewhere (submodule); issue here for the sake of project trackingissue needs to be addressed elsewhere (submodule); issue here for the sake of project tracking

non-b4bChanges answers (incl. adding tests)Changes answers (incl. adding tests)

scienceEnhancement to or bug impacting scienceEnhancement to or bug impacting science

Status: Open.

Feature

#3759 In ESCOMP/CTSM;

· ekluzek opened on Feb 12, 2026

Document, test, and add testing for running CPLHIST cases in NUOPC starting from a B case

b4bbit-for-bitbit-for-bit

documentationadditions or edits to user-facing documentation or its infrastructureadditions or edits to user-facing documentation or its infrastructure

investigationNeeds to be verified and more investigation into what's going on.Needs to be verified and more investigation into what's going on.

testingadditions or changes to testsadditions or changes to tests

Status: Open.

Parent

#3410 In ESCOMP/CTSM;

· ekluzek opened on Aug 13, 2025

Make offline 1850 compsets closer to when coupled to CAM by using CO2 from datasets rather than hardcoded values

non-b4bChanges answers (incl. adding tests)Changes answers (incl. adding tests)

scienceEnhancement to or bug impacting scienceEnhancement to or bug impacting science

usabilityImprove or clarify user-facing optionsImprove or clarify user-facing options

Status: Open.

Usability

#3801 In ESCOMP/CTSM;

· ekluzek opened on Mar 4, 2026

Assume_excess_ice_streams off for clm6_0 cases when user gives an finidat file (and on for clm4_5 or clm5_0)

enhancementnew capability or improved behavior of existing capabilitynew capability or improved behavior of existing capability

non-b4bChanges answers (incl. adding tests)Changes answers (incl. adding tests)

scienceEnhancement to or bug impacting scienceEnhancement to or bug impacting science

usabilityImprove or clarify user-facing optionsImprove or clarify user-facing options

Status: Open.

Feature

#3802 In ESCOMP/CTSM;

· ekluzek opened on Mar 5, 2026

Divide by zero seen in update to intel/2025.3.2 compiler update

bugsomething is working incorrectlysomething is working incorrectly

priority: ImmediateHighest priority, something that was unexpectedHighest priority, something that was unexpected

Status: Open.

Bug

#3798 In ESCOMP/CTSM;

· ekluzek opened on Mar 4, 2026

Validate that namelists are correct

code healthimproving internal code structure to make easier to maintain (sustainability)improving internal code structure to make easier to maintain (sustainability)

usabilityImprove or clarify user-facing optionsImprove or clarify user-facing options

Status: Open.

Task

#3800 In ESCOMP/CTSM;

· ekluzek opened on Mar 4, 2026

ctsm5.4.XXX: CDEPS update to new CMIP7 preliminary spinup: aerosols, ndep, ozone, CO2

priority: highHigh priority to fix/merge soon, e.g., because it is a problem in important configurationsHigh priority to fix/merge soon, e.g., because it is a problem in important configurations

Status: Open.

#3984 In ESCOMP/CTSM;

· wwieder opened on Apr 30, 2026

Cdeps 1850 aero co2 ndep updates

enhancementnew capability or improved behavior of existing capabilitynew capability or improved behavior of existing capability

externalissue needs to be addressed elsewhere (submodule); issue here for the sake of project trackingissue needs to be addressed elsewhere (submodule); issue here for the sake of project tracking

non-b4bChanges answers (incl. adding tests)Changes answers (incl. adding tests)

PR status: needs testing

priority: highHigh priority to fix/merge soon, e.g., because it is a problem in important configurationsHigh priority to fix/merge soon, e.g., because it is a problem in important configurations

scienceEnhancement to or bug impacting scienceEnhancement to or bug impacting science

test: aux_clmPass aux_clm suite before mergingPass aux_clm suite before merging

test: ctsm_sciRun and check ctsm_sci suite before mergingRun and check ctsm_sci suite before merging

test: fatesPass fates test suite before mergingPass fates test suite before merging

Status: Draft (not ready).

ESCOMP/CTSMnumber 4008

#4008 In ESCOMP/CTSM;

· ekluzek opened on May 10, 2026

Adding CLM output as default history output variables in next CESM tag

b4bbit-for-bitbit-for-bit

Status: Open.

Task

#4035 In ESCOMP/CTSM;

· gunterl opened on May 20, 2026