NCAR/ccpp-framework

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Common Community Physics Package (CCPP)

Stars: 25
Forks: 67
Open beginner issues: 0
Indexed issues: 68
Avg merge: 3d 8h
Merged PRs (30d): 2

Dominant language: Python
License: No license data
Last GitHub push: Aug 13, 2026
Latest indexed: Sep 19, 2026
Contributing guide: No contributing guide
Code of conduct: No code of conduct
Beginner labels: No beginner labels indexed

Beginner friendly Everything

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68 open issues indexed

Fortran #5462: Global name too long Open

bug

NCAR/ccpp-framework#786 · 8 comments · 1 assignee · Opened Sep 16, 2026
Update/rewrite ccpp_track_variables.py for capgen Open

capgen-unification enhancement

Difficulty 5/5 Over a week Newbie friendliness 45/100

NCAR/ccpp-framework#784 · Opened Sep 10, 2026
Debugging capabilities for capgen v1 Open

enhancement post-capgen-unification

NCAR/ccpp-framework#783 · 1 assignee · Opened Sep 10, 2026
Implement "is_initialized" method in constituents object Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 55/100

NCAR/ccpp-framework#775 · Opened Aug 3, 2026
Post capgen v1 unification: recreate CCPP variable tracker and add debugging feature Open

enhancement post-capgen-unification

NCAR/ccpp-framework#770 · 1 assignee · Opened Jul 17, 2026
Update Wiki Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 35/100

NCAR/ccpp-framework#763 · Opened Jul 7, 2026
Rethinking horizontal dimensions Open

enhancement

NCAR/ccpp-framework#760 · 2 comments · 1 assignee · Opened May 27, 2026
ccpp-capgen v1: a unified successor to ccpp-prebuild and ccpp-capgen v0 Open

NCAR/ccpp-framework#759 · 4 comments · 1 assignee · Opened May 13, 2026
Weird Capgen fortran parsing error? Open

bug capgen

NCAR/ccpp-framework#757 · 3 comments · 1 assignee · Opened May 11, 2026
Bug in capgen (test/capgen_test) ? surface_air_pressure outvar in ddt_suite Open

capgen question

NCAR/ccpp-framework#755 · 1 assignee · Opened May 11, 2026
Document --kind-type in ccpp_capgen.py CLI/help, and consider reversing the syntax for external kind modules Open

capgen capgen-unification enhancement

Difficulty 4/5 3-5 days Newbie friendliness 45/100

NCAR/ccpp-framework#754 · Opened May 8, 2026
Remove unused metadata attribute state_variable Open

capgen capgen-unification

Difficulty 2/5 1-3 hours Newbie friendliness 76/100

NCAR/ccpp-framework#753 · Opened May 8, 2026
capgen: Add capability and test for passing mpi communicator as a flat field Open

bug capgen capgen-unification enhancement

NCAR/ccpp-framework#751 · 1 comment · 1 assignee · Opened May 1, 2026
capgen Fortran parser does not accept internal DDTs as part of a registered DDT Open

bug capgen capgen-unification

Difficulty 3/5 1-2 days Newbie friendliness 52/100

NCAR/ccpp-framework#749 · 3 comments · Opened May 1, 2026
capgen: dimension specifier foo(N) is not the same as foo(1:N) in Fortran code Open

bug capgen

Difficulty 3/5 1-2 days Newbie friendliness 58/100

NCAR/ccpp-framework#747 · Opened May 1, 2026
capgen: case-sensitivity when comparing metadata to Fortran Open

bug capgen

Difficulty 3/5 1-2 days Newbie friendliness 64/100

NCAR/ccpp-framework#746 · 2 comments · Opened May 1, 2026
Simplify testing framework Open

enhancement post-capgen-unification question

Difficulty 5/5 Over a week Newbie friendliness 35/100

NCAR/ccpp-framework#741 · 1 comment · Opened Apr 27, 2026
Create final tag for ccpp-prebuild and freeze/remove the code? Open

capgen-unification ccpp_prebuild enhancement question

NCAR/ccpp-framework#739 · 1 comment · 1 reaction · 1 assignee · Opened Apr 23, 2026
Simplification of ccpp-framework code Open

capgen capgen-unification hackathon_20260417 post-capgen-unification

NCAR/ccpp-framework#737 · 2 comments · 6 assignees · Opened Apr 17, 2026
Add threading and multi-instance test for capgen Open

capgen capgen-unification enhancement

NCAR/ccpp-framework#721 · 4 comments · 1 assignee · Opened Feb 19, 2026
Capgen needs a check to ensure the character length for `errmsg` is not being set by physics schemes Open

capgen enhancement

Difficulty 3/5 1-2 days Newbie friendliness 45/100

NCAR/ccpp-framework#720 · 1 comment · Opened Feb 5, 2026
Impose hard limit on standard name length Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 45/100

NCAR/ccpp-framework#711 · Opened Jan 9, 2026
Modify nested suite expansion to preserve comments Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 45/100

NCAR/ccpp-framework#704 · 4 comments · Opened Dec 4, 2025
Adopt a Fortran formatter and static code analyzer for CCPP framework Open

enhancement

NCAR/ccpp-framework#703 · 1 comment · 1 assignee · Opened Dec 4, 2025
Adopt a Python formatter and linter for the framework Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 43/100

NCAR/ccpp-framework#702 · Opened Dec 4, 2025
Add flexible/extensible constituent properties functionality Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

NCAR/ccpp-framework#698 · Opened Nov 26, 2025
Implement abstract type for NetCDF I/O Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 30/100

NCAR/ccpp-framework#697 · 1 comment · Opened Nov 26, 2025
Unallocated fields passed into Group Caps Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 45/100

NCAR/ccpp-framework#690 · Opened Sep 26, 2025
Capgen performance when using many suites Open

capgen capgen-unification enhancement

Difficulty 4/5 3-5 days Newbie friendliness 38/100

NCAR/ccpp-framework#688 · 3 comments · Opened Sep 23, 2025
Add support for MPI_Comm (mpi08) object in capgen Open

capgen-unification enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

NCAR/ccpp-framework#686 · 5 comments · Opened Sep 19, 2025
Transition UFS weather model to Capgen Open

capgen-unification

Difficulty 5/5 Over a week Newbie friendliness 25/100

NCAR/ccpp-framework#682 · Opened Sep 4, 2025
Errors when integer variable is output from one phase and used as an interstitial dimension in another Open

bug

NCAR/ccpp-framework#681 · 1 comment · 1 assignee · Opened Aug 28, 2025
Transition CCPP-SCM to Capgen Open

capgen-unification

Difficulty 5/5 Over a week Newbie friendliness 20/100

NCAR/ccpp-framework#680 · Opened Aug 28, 2025
Transition NEPTUNE to capgen Open

capgen-unification

Difficulty 5/5 Over a week Newbie friendliness 35/100

NCAR/ccpp-framework#679 · Opened Aug 28, 2025
Allow output allocatable variables without specific dimensions Open

enhancement

NCAR/ccpp-framework#667 · 3 comments · 1 assignee · Opened Jul 24, 2025
DEBUG Mode improvements Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 45/100

NCAR/ccpp-framework#658 · Opened May 1, 2025
MPI interface for CCPP physics schemes Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 20/100

NCAR/ccpp-framework#624 · Opened Jan 9, 2025
New checks/update getter for molar_mass in constituents object Open

enhancement

NCAR/ccpp-framework#620 · 1 assignee · Opened Dec 24, 2024
Remove default "dry" mixing ratio from constituent object "instantiate" Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 58/100

NCAR/ccpp-framework#613 · Opened Nov 14, 2024
Add xmllint-ing of SDFs to offline_check_fortran_vs_metadata.py Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 45/100

NCAR/ccpp-framework#607 · Opened Oct 29, 2024
xmllint opt-out flag Open

enhancement

NCAR/ccpp-framework#606 · 1 assignee · Opened Oct 25, 2024
Make full constituents object available via metadata Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

NCAR/ccpp-framework#597 · Opened Oct 3, 2024
Enhanced/Expanded Testing Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 20/100

NCAR/ccpp-framework#595 · 2 comments · Opened Oct 3, 2024
Fortran parsing error Open

bug

NCAR/ccpp-framework#593 · 2 comments · 1 assignee · Opened Sep 30, 2024
Amend offline_check_fortran_vs_metadata.py to log what it has checked Open

enhancement

Difficulty 2/5 1-3 hours Newbie friendliness 55/100

NCAR/ccpp-framework#592 · Opened Sep 26, 2024
capgen's Fortran parser does not allow array bounds which are not Fortran identifiers Open

bug

NCAR/ccpp-framework#588 · 2 comments · 2 assignees · Opened Sep 16, 2024
Add constituent minimum values array interface Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 55/100

NCAR/ccpp-framework#585 · Opened Aug 28, 2024
Add diagnostic object to CCPP-framework Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 30/100

NCAR/ccpp-framework#579 · 1 comment · Opened Jul 25, 2024
Concatenate errors found during parsing Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

NCAR/ccpp-framework#578 · Opened Jul 17, 2024
Implement new constituent property/field to track "above the top of model" values Open

enhancement

NCAR/ccpp-framework#573 · 1 assignee · Opened Jun 21, 2024

NCAR/ccpp-framework

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