CCPP Framework Meeting Minutes 2020 11 24

Agenda

• capgen.py progress
• Transition to capgen.py
• NOAA / NCAR-ACOM model development
• Other business

capgen.py progress

• Build updates for unification: https://github.com/NCAR/ccpp-framework/pull/339
• This fixed #278 and #293
• Now working on #259 and #306, another PR will be #314, #328, #329 and #337
• We don't have a plan yet how to handle optional arguments
• Also looking at "advective species feature" requested by NRL (#282)
  • We should touch base with them in one of the following ccpp-framework meetings; want Cheryl, Dave, Francis, Steve, Grant, Dom as well
  • DTC needs to develop a mechanism to avoid using the field_table - use an internal field table approach, similar to the internal input file?

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)
• Follow up on discussion of last week on removal of optional arguments (or not)
  • From two weeks ago: Do we need consent from developers to not support optional arguments? Do we tell developers to not use them right away? Do they need alternatives? Whom to contact? EMC, GSL, Robert & Dustin
  • Dom will do - after Thanksgiving
• timestep_init, timestep_finalize - Dom is working on this
• assumed sizes: Dom needs to take up this PR, update it with the latest code and fix the issues
• cleanup of grandfathered stuff (Xia): See https://docs.google.com/spreadsheets/d/1rUMEG0yhZaJvbsl3OawlBzYwLYzo1XBPQfsBZZto63I/edit?usp=sharing
• Consolidation of standard names (Ligia and Grant) - https://docs.google.com/spreadsheets/d/1kWDC7_2sagm-PTP_tXaGyI3O3sJFK8FY9FElQbb6V3o/edit#gid=613941307
  • No progress since last week
  • Grant working with Dave in the context of getting MPAS physics into CCPP

NOAA / NCAR-ACOM model development

• ...

Other business

• Progress on CCPP physics governance?