CCPP Framework Meeting Minutes 2021 04 06

Agenda

Check open issues in ccpp-framework repositories with labels "capgen_unification"
- Unable to reproduce #279, may no longer be an issue
Most important issues to fix: unit conversions (#329), active attribute (#328), blocked data structures (#314)
- blocked data structures (#314) requires agreement on standard names for block numbers etc; currently we have: ccpp_block_number (number of current block), ccpp_block_count (how many blocks are there in total), ccpp_block_sizes (array of length ccpp_block_count that contains the sizes of all blocks)
More discussion around the following issues:
- Support for optional arguments (#305): we have no conclusion yet
- Optional group name (#259): have two suites in one suite definition file would avoid the incompatibility with the NCAR/NEPTUNE model requirements
Funding situation - capgen.py work for NOAA not funded
- Is MPAS already using capgen.py for actual model runs?

Things to do: https://docs.google.com/document/d/1M3mCO3ESR9OJqLyUbQf-ahJtmfmGKilZlWaBTxsfMRk/edit#
Timeline and resource chart: https://docs.google.com/spreadsheets/d/1XbSF1ejYcPMrVtZtk1OSiMX-vI5srLkwEUhyAirGr8k/edit#gid=1970951509
Hard deadline is end of this period of performance (06/30/2021), but need a few weeks for deliverables that depend on capgen.py - and also for reporting?
- Auto-conversion of variables: pot temp from temp and geopotential etc. (one simple example suffices)
- Auto-transformation of arrays with different index ordering (one simple example suffices)

Slightly different approach than previously discussed: take Ligia's and Grant's standard name updates (that go into a branch) and add to standard name dictionary, update later if changes are requested
Cheryl's PR goes in first, then Ligia's/Grant's PR

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