CCPP Framework Meeting Minutes 2022 09 13

Agenda

This is the capability to run the model using multiple physics schemes: one being fully used to update state variables and drive the dynamics, and one or more others used to calculate state and diagnostic variables at each timestep but without forward integration.
Example with WRF in this paper

Lulin gave a presentation stating the case of the piggyback physics capability and answered questions
As Steve was unable to attend we recorded this portion of the meeting so he could watch later, but brief summary:
- capgen probably would allow for this fairly easily, since it requires schemes return tendencies, and not modify the state variables directly
- Lulin will be writing proposal in next two months, in collaboration with framework team members, for funding to achieve this
- Would need to be applied to capgen and be dependent on capgen transition timeline.

capgen should keep cap names under 63 characters (12 hours) #337
- Currently no capnames hit this limit; the highest current subroutine name is 61 characters and the current state of CCPP suites allow for a max of 62
- If we enforce limits on suite and group name length to the current maxes, this will not be a problem in the future

CCPP Framework wiki