[Ncep.list.nems.announce] Upcoming NEMS Commit

[Samuel Trahan - NOAA Affiliate]

Hi all,

We will soon be committing the following NEMS changes, itemized below.
Most of these are coupling-related changes (items 1-5), plus an addition of
platform and app support (items 6-7) and some technical changes that do not
directly impact apps (8-9).  This commit is tentatively scheduled for
Wednesday, April 25 at 4:00 PM Eastern time

Changes are in the coupling-test-1 branches of all apps.  Those branches
will be updated when logs are available for each app on each platform.

The following updates are included in the proposed commit:

1. Simplification of realizeConnectedGrid() inside InitializeIPDv03p4().
Instead of explicitly constructing the regDecompPTile, let ESMF construct a
1DE/PET default.
2. Adding a subroutine for multi-tile FV3 grid output.
(FieldBundle_RWFields_tiles)
3. Tested vtk file output for FV3 grid (currently commented out search for
ESMF_GridWriteVTK)
4. Adding nearest neighbor interpolation method for regridding flux fields.
5. The land-sea mask from the atmosphere model on the atmosphere model grid
is used for regridding flux fields in the mediator.

6. Adds AppBuilder support for MOM6
7. Changes to module-setup.sh.inc and module-setup.csh.inc for supporting
GAEA and WCOSS Phase 3 (Dell)

8. A multi-app test script NEMS/tests/multi-app-test.sh which will be used
to automate commit tests and nightly tests
9. A bugfix to produtil needed to support removing "blocking" status from
streams.  This is a fix needed by MET+

Please note that if your coupled application uses the mediator and:

GSM: the mediator updates require the use of the GSM gridmask branch (in
VLab: d47e8b9b
<https://vlab.ncep.noaa.gov/redmine/projects/emc-gsm/repository/revisions/d47e8b9b99aa6f3aa3443e8a276d53c5cb3e2e65>),
which has the required grid mask information.

FV3: the appropriate conf file needs to have CPPFLAGS += -DFV3_CPLD in the
ifdef InNemsMakefile section of your configure file. Using FV3_CPLD
requires the use of esmf/8.0.0bs01

There will be no answer change for the following supported apps:
NEMSfv3gfs, NEMSGSM, WW3-FV3 and WW3-ATM

New baselines were generated for the following supported apps:
HYCOM-GSM-CICE (see master branch) and GSM-MOM5-CICE5 (see newnems_0417
branch).

See ticket https://vlab.ncep.noaa.gov/redmine/issues/47301 for more
information.
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