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CCPP Framework Meeting Minutes 2024 10 10

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Courtney Peverley edited this page Oct 10, 2024 · 4 revisions

Reporting to you live from FL1-2198!

Agenda

Attendees: Mike Kavulich,

GitHub issues/PRs

CCPP Framework (issues, PRs, discussions)

Drafts

Standard names (issues, PRs, discussions)

New items for discussion

  • How to handle schemes that are called multiple times, but with different inputs?
    • One possible solution: syntax like <scheme name_of_fruit="orange">eat_fruit</scheme> and <scheme name_of_fruit="apple">eat_fruit</scheme>
  • Tagging standard names - Haipeng demo

Updates from last time

Previous notes

Other business

Meeting notes

CCPP Framework

  • Expanded/enhanced testing issue
    • Dom - anyone have python Mock experience?
    • Michael W has some
  • kind_phys bug
    • By design, it behaves as expected (Dom has updated the documentation; Michael K to approve it)
  • Reconciliation from production/RRFS.v1 branch to main (Grant)
    • Grant will close this; Dom has answered his question
    • Was a temporary solution for “check all” flag

Standard Names

  • Reconsideration of “Add four wind CF variables #73” (issue #77)
    • Raises issues of inconsistencies
  • Dom - were planning to discuss broader use of CCPP standard names at SAICCT meeting, but ran out of time; will do it next meeting
    • Neptune folks and JEDI folks are amenable
    • Will need to establish clearer governance, be faster with review for this to work
      • Want to minimize impacts to source code
    • Unclear if there’s DTC funding for governance of standard names
  • Grant - previously discussed bringing in CF folks to see if they want to expand their standard - should we revisit that?
    • Michael W - want to have some of these external conversations sooner rather than later (plus maybe renaming the repo now vs later)
  • Also - improve user friendliness of standard names
    • Also need to nail down things like what the long name is vs standard name
  • Grant - need automated tests to cross-check
    • Questions as to where the tests should exist, but problems are solvable
    • Dom - dictionary provides API to check validity of name?

Discussion

  • Haipeng: improve usability/findability of standard names
    • Tags (groups/categories/process) would make things easier to find/search
    • Can also consolidate variable variations (like “tendency_of”, etc)
    • Michael K - in prebuild, we have a track_variables.py script
      • Could also hopefully be leveraged in capgen
    • Dom - should define what kinds of tools should come with standard names repository
      • Could then leverage those from various other repos
    • Jesse - real database structure with searching functionality would be nice
    • Haipeng - standard names houses standard API/base documentation to be expanded by host models
    • Dom - harkens back to R2D2 database on where input/output files live
      • SQL DB that sits on AWS server; REST API to access
      • Could do something like that and have server that people could query w/o checking out the database
      • Could leverage their expertise for this
  • Brian Dobbins - would it make more sense to change to suffixes to improve organization? (all “air_temperature” variables would be grouped together alphabetically)
  • Michael K - should decide what kind of variable gets a standard name (e.g. a flag for a specific mode of a physics scheme)
  • Brian D - also should see if we could stay as close to “first principles” as possible (e.g. instead of a variable like ratio_of_X_to_Y, pass in ‘X’ and ‘Y’ and calculate the ratio in the scheme)
  • Jesse - we can switch atmospheric_physics to a fork of ccpp-physics
    • Cheryl - should organize in a way that we can grab what we need and exclude what we don’t need
      • Michael K - submodules have been discussed with other dycores as well
    • Dom - ~10 different versions of RRTMG - it’s not easy to unify across models
      • Grant - developers should do a better job of silo-ing the parts of the schemes that may need to change between hosts

CCPP Framework wiki

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