CCPP Framework Meeting Minutes 2020 08 13

Agenda

• should capgen automatically search for scheme files based on SDFs to process?
• transition to cap_gen.py
• other business

Should capgen automatically search for scheme files based on SDFs to process?

• look for all metadata files in search paths, if duplicates exist the first wins
  • open metadata file once, read it, parse only what is needed
• should we make one-scheme-per-file a rule?
  • if we do that, also make it mandatory that scheme_name = module_name = file_name (w/o suffix)?
  • but only for schemes, not for type/variable definitions?
  • too much burden for developers? too many constraints?

Transition to cap_gen.py

• 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 cap_gen.py (https://docs.google.com/document/d/1M3mCO3ESR9OJqLyUbQf-ahJtmfmGKilZlWaBTxsfMRk/edit?usp=sharing)

• CCPP dependencies PR is ready (waiting for our turn in the queue, a few weeks after Dom's vacation; need to keep updating)

  • PRs for ccpp_prebuild.py: https://github.com/ufs-community/ufs-weather-model/pull/180
  • issues: https://github.com/NCAR/ccpp-framework/issues/308 and https://github.com/NCAR/ccpp-framework/issues/318
  • changes:
    • a more generic implementation that adds the [ccpp-table-properties] section for module, ddt and scheme tables
    • can specify dependencies on multiple lines
    • can have a relative_path attribute
    • [ccpp-table-properties] mandatory for each module/DDT/scheme

• "active" attribute for GFS_typedefs.meta is ready (probably will be combined with the CCPP dependencies PR; need to keep updating)

  • PRs: https://github.com/ufs-community/ufs-weather-model/pull/182