CCPP Framework Meeting Minutes 2020 06 11

Agenda

multiple versions of physics schemes
follow-up on active attribute, optional arguments
discuss/explain the slide on suite definition files from Dave's talk at WRF/MPAS workshop

this is issue https://github.com/NCAR/ccpp-framework/issues/275
building blocks to construct suites from groups that are usually run together
use include statement in the suite definition file that uses the group
from Steve: scientists are excited about this idea
has not been implemented yet (Dave's talk conveyed that differently), it will be several months before this gets implemented
cap_gen.py will print out the suite as analyzed (i.e. synthesized), and also as part of the debug prints

MMM made a lot of progress on CCPP-izing some of their physics
overlap with physics that we have already
there is no plan to use the same physics, i.e. truly achieve interoperability
need to reassemble a group to talk about a shared physics repository, set up experiments where we use each other's physics
circling back to the required and still-missing multi-institution governance of physics
Example: pumas microphysics as a successor for MG (and possibly Thompson); effort to run CCPP-ized MPAS physics in CAM
NCAR has an ongoing and funded project to work on interoperability for physics, it is not clear how much funding (and willingness) we have on the NOAA side
Can we start this off using YSU or Thompson MP as an example?
- the ccpp-physics version is very close to WRF v4.1.0
- it is not used in operations by NOAA (yet) and not one of the primary schemes for the MPAS-WRF CCPP effort
- use a different GitHub space for such shared physics
RRTMG unification efforts - longer term project
Dom to post links/filenames of versions of physics (e.g. Thompson, YSU)

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