CCPP Framework Meeting Minutes 2021 01 19

Agenda

• capgen.py progress
• Transition to capgen.py
• Other business

capgen.py progress

• Steve working on a restructured, more general code
• Need plan yet how to handle optional arguments (Dom to reach out to developers - EMC, GSL, Robert & Dustin, Phil, NRL)
  • One possibility is to ignore optional arguments that are not in the metadata file
  • Is this good enough for everyone? Build time or runtime requirement?
  • Or make "optional" a keyword that evaluates to "true" or "false" in the suite definition file?
  • Brainstorming: always look for "exclude" or "include" list of variables for the scheme in suite definition file?
  • How does this relate to the "active" attribute - does it?
• DTC needs to develop a mechanism to avoid using the field_table - use an internal field table approach, similar to the internal input file?
  • Dom talked to Jun Wang and Rusty Benson, seems possible to do but need to test

Transition to capgen.py

• Updated DTC timeline and resource chart (https://docs.google.com/spreadsheets/d/1XbSF1ejYcPMrVtZtk1OSiMX-vI5srLkwEUhyAirGr8k/edit?usp=sharing)
• Things that need to happen for transitioning UFS to capgen.py (https://docs.google.com/document/d/1M3mCO3ESR9OJqLyUbQf-ahJtmfmGKilZlWaBTxsfMRk/edit?usp=sharing)
• Dictionary of standard names:
  • https://meet.google.com/linkredirect?authuser=0&dest=https%3A%2F%2Fdocs.google.com%2Fspreadsheets%2Fd%2F1kWDC7_2sagm-PTP_tXaGyI3O3sJFK8FY9FElQbb6V3o%2Fedit%23gid%3D1778121391
• Open PRs from Xia related to the transition to capgen.py (Dom to work on these)
  • Use assumed sizes for array declarations
  • Clean up grandfathered stuff (use of constants)

Other business

• CCPP governance - any updates?
• New/alternative approach for passing constants from the host model to complex CCPP schemes
• Dom met with Duane Rosenberg to discuss connecting CCPP to their new NOAA-GSL dycore