Regression Test Policy for Weather Model Platforms and Compilers

The regression test policy for the UFS Weather Model (WM) follows the general principles outlined in the Regression Test Policy for UFS Platforms and Compilers. The details for the UFS Weather Model are outlined below.

Currently, the UFS WM supports the Tier-1 platforms listed below. Although plans are under consideration for adding Gaea C6, Ursa, and Rhea, these platforms are not yet supported for the UFS WM.

Tier-1 platforms

Platform	Responsibility for tests	Test coverage	Status
NOAA WCOSS2 with default Intel 19 software stack	EMC	EMC-PROD tests (rt.conf)	Implemented
NOAA RDHPC Hera with default Intel 2022 software stack	EPIC/EMC	EMC-PROD tests (rt.conf)	Implemented
NOAA RDHPC Hera with GNU 13.3.0 software stack	EPIC/EMC	EPIC/EMC-PROD tests (rt.conf)	Implemented
NOAA RDHPC Hercules with default Intel 2021.9.0 software stack	EPIC/EMC	EMC-PROD tests (rt.conf)	Implemented
NOAA RDHPC Hercules with GNU 12.2.0 software stack	EPIC/EMC	EPIC/EMC-PROD tests (rt.conf)	Implemented
NOAA RDHPC Gaea (C5) with default Intel 2023.1.0 software stack	EPIC/EMC	EMC-PROD tests (rt.conf)	Implemented
NOAA RDHPC Jet with default Intel 2022 software stack	EPIC/EMC	EMC-PROD tests (rt.conf)	Implemented
MSU Orion with default Intel 2022 software stack	EPIC/EMC	EPIC/EMC-PROD tests (rt.conf)	Implemented
NCAR CISL Derecho with default Intel 2021.10.0 software stack	EPIC/EMC	EMC-PROD tests (rt.conf)	Implemented
AWS with docker container using GNU 9.3.0 software stack	EPIC/EMC	EMC-PROD tests (rt.conf)	Implemented

Status of supported software library stack

Platforms	WCOSS2	Hera	Hercules	Gaea	Jet	Orion	Derecho	AWS
Compiler	Intel 19.1.3.304	Intel 2021.5.0	Intel 2021.9.0	Intel 2023.1.0	Intel 2021.5.0	intel 2021.9.0	intel 2021.10.0	GNU 9.3.0
MPI	cray mpich 8.1.12	impi 2021.5.1	impi 2021.9.0	Cray MPICH 8.1.25	impi 2021.5.1	impi 2021.9.0	cray-mpich 8.1.25
Python		3.9.2	3.9.12	3.9.12	3.10.8	3.9.7	3.10.8
Compiler		GNU 13.3.0	GNU 12.2.0
MPI		openmpi 4.1.6	mvapich2 2.3.7
Python		3.9.2

Platforms	WCOSS2	ufs_common: Hera/Gaea/Jet/Orion/Cheyenne/AWS
jasper	2.0.25	2.0.32
zlib	1.2.11	1.2.13
libpng	1.6.37	1.6.37
hdf5	1.14.0	1.14.0
netcdf	4.9.2
netcdf-c		4.9.2
netcdf-fortran		4.6.0
pio	2.5.10
parallelio		2.5.10
esmf	8.5.0	8.5.0
fms	2023.02.01	2023.02.01
bacio	2.4.1	2.4.1
crtm	2.4.0	2.4.0
g2	3.4.5	3.4.5
g2tmpl	1.10.2	1.10.2
ip	3.3.3	4.3.0
sp	2.3.3	2.3.3
w3emc	2.9.2	2.10.0
gftl-shared	1.6.1	1.6.1
mapl	2.40.3-esmf-8.5.0	2.40.3-esmf-8.5.0
scotch	7.0.3	7.0.4

Tier-2 platforms

Platform	Responsibility for tests	Test coverage	Status
Linux platforms with GNU 9.1.0 compiler and MPICH 3.3.1 MPI library (cloud platforms?)	TBD	TBD	Implemented
Linux platforms with Intel 19 compiler and MVAPICH2 2.3.2 MPI library (cloud platforms?)	TBD	TBD	Implemented
macOS platforms with LLVM clang 9.x.y + GNU gfortran 9.m.n compiler and mpich 3.r.s MPI library	TBD	TBD	Implemented
macOS platforms with GNU gcc+gfortran 9.x.y and mpich 3.r.s MPI library	TBD	TBD	Implemented

Tier-3 platforms

• Linux platforms with other combinations and/or other versions of the Intel or GNU compiler and MPI libraries than those listed above.
• NAG compiler.
• clang/flang compiler: currently an open source development, the flang compiler is designed as a Fortran front-end for the LLVM clang compiler and may provide an interesting alternative in the future if/once matured (see this link for more information)