Samuel Trahan (NOAA contractor)

# PR Checklist - [x] This PR is up-to-date with the top of all sub-component repositories except for those sub-components which are the subject of this PR. Please consult the...

MOM6 and FV3 have conflicting precision requirements when FV3 is built with 32-bit physics

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## Description When FV3 is built with 32-bit physics, MOM6 refuses to build because it expects stochastic physics to use 64-bit reals. Possible solutions are: 1. Change the MOM6 to...

rte-rrtmgp dtc/ccpp is out-of-date, and must be updated to work with kind_phys=4

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## Description The rte-rrtmgp submodule (dtc/ccpp branch) is out-of-date. Although it will compile with kind_phys=4, it won't work properly. There is a proposed solution, but as of this writing, it...

RAP&HRRR tests are not 12 hours

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## Description A previous PR was intended to reduce RAP and HRRR regression test forecast lengths to 12 hours, but it did not. This is easy to fix, and a...

## Description The control_flake and rap_control_flake tests purport to test the flake model, but they don't actually run it. The input data lacks lakefrac, so the flake model never runs....

## Description When running regression tests, the cpld_control_p8 frequently freezes at this point on hera.gnu: ``` ==> /scratch1/NCEPDEV/stmp2/Samuel.Trahan/FV3_RT/rt_21887/cpld_control_p8.err /scratch1/NCEPDEV/stmp2/Samuel.Trahan/FV3_RT/rt_21887/cpld_control_p8.out

## Description The `$TASKS` and `$NODES` calculations in rt.sh are wrong; the new ones are in run_tests.sh. They should be moved to rt_utils.sh so they can be called in both...

**Describe the bug** The ps_reg variable in fv_regional_bc.F90 is initialized to -9999999 Pa, which propagates throughout the model. All other boundary arrays were initialized to signalling NaN. Not initializing this...

bug fixes: kchunk3d ignored, hailwat uninitialized in dycore, tile_num wrong for nests

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## Commit Queue Requirements: - [x] Fill out all sections of this template. - [x] All sub component pull requests have been reviewed by their code managers. - [x] Run...

extremely verbose write statement in FV3

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## Description This write statement produces many megabytes of output for some configurations. It is enough to have a significant impact on the runtime: ```f90 write(0,*) ' history_type_store_data3D kinds ',...