SMT GEOS DiscoverBuild

Build & Run GEOS on Discover

The deployed SMT stack

On Discover we have a stakc pre-built and accessible via module load.

• module use -a SW_STACK/modulefiles adds the versions of the stack tot your module list
• ml SMTStack/YYYY.MM.PP to load the version of the stack targeted

For development a module SMTStack/YYYY.MM.PP-no-venv is available that doesn't pull ndsl or any other python packages.

Versions of all the softwares in the stack is present in /discover/nobackup/projects/geosongpu/sw_sles15/HISTORY.md

Build & Run GEOS

• Git clone the root of GEOS then using mepo, you clone the rest of the components which pull on the components.yaml at the root of GEOSgcm
  • There is two source for a component the default and the develop source
  • v11.5.2 is our baseline, but we have dsl/develop branch where needed
  • We do not use develop for GEOSgcm_App or cmake since those have been setup for OpenACC but are not up-to-date for v11.5.2

git clone -b dsl/develop [email protected]:GEOS-ESM/GEOSgcm.git geos
cd geos
mepo clone --partial blobless
mepo develop env GEOSgcm GEOSgcm_GridComp FVdycoreCubed_GridComp pyFV3

• CMake GEOS, using the stack.
• Then make install. Grab a coffee (or 2)
  • We override the compiler with their mpi counterpart to make sure libmpi is pulled properly. CMake should deal with that, but there's some failure floating around.

Single script to do both cmake & make:

module use -a SW_STACK/modulefiles
ml SMTStack/2024.04.00

mkdir -p build
cd build
export TMP=GEOS_DIR/geos/build/tmp
export TMPDIR=$TMP
export TEMP=$TMP
mkdir $TMP
echo $TMP

export FC=mpif90
export CC=mpicc
export CXX=mpic++

cmake .. -DBASEDIR=$BASEDIR/Linux \
         -DCMAKE_Fortran_COMPILER=mpif90 \
         -DBUILD_PYFV3_INTERFACE=ON \
         -DCMAKE_INSTALL_PREFIX=../install \
         -DPython3_EXECUTABLE=`which python3`

make -j48 install

• Matt T. prepared us some GEOS-FP like data. Copy them from /discover/nobackup/projects/geosongpu/geos_data/geos-fp/stock-v11.5.2-1day-GNU-NH-GDATA-RRTMGP-GFDL-GF2020-OPS-cX-L137 with X resolution from {24, 180, 720}

• To run the pyFV3 version, modification to the AGCM.rc and gcm_run.j. This will run the numpy backend.

AGCM.rc

###########################################################
# dynamics options
# ----------------------------------------
DYCORE: FV3
 FV3_CONFIG: HWT
+ RUN_PYFV3: 1
AdvCore_Advection: 0

gcm_run.j

setenv RUN_CMD "$GEOSBIN/esma_mpirun -np "

setenv GCMVER `cat $GEOSETC/.AGCM_VERSION`
echo   VERSION: $GCMVER

+setenv FV3_DACEMODE           Python
+setenv GEOS_PYFV3_BACKEND     numpy
+setenv PACE_CONSTANTS         GEOS
+setenv PACE_FLOAT_PRECISION   32
+setenv PYTHONOPTIMIZE         1
+setenv PACE_LOGLEVEL          Debug

+setenv FVCOMP_DIR PATH_TO_GEOS/src/Components/@GEOSgcm_GridComp/GEOSagcm_GridComp/GEOSsuperdyn_GridComp/@FVdycoreCubed_GridComp/
+setenv PYTHONPATH $FVCOMP_DIR/python/interface:$FVCOMP_DIR/python/@pyFV3


#######################################################################
#             Experiment Specific Environment Variables
######################################################################