Compile the Caribbean model on ARCHER2

[ocgabs]

[ocgabs]

This can be done following the AMM7_SURGE instructions but swapping the repository to use the Caribbean configuration and the NEMO source code changing the following steps.
export CONFIG=Caribbean
export WORK=/work/n01/n01
export WDIR=/work/n01/n01/$USER/$CONFIG
export CDIR=$WDIR/NEMO4/r4.0-HEAD/cfgs
export TDIR=$WDIR/NEMO4/r4.0-HEAD/tools
export Trunk=$WDIR/NEMO4/r4.0-HEAD

(Step) Clone the repository

cd $WORK/$USER
git clone https://github.com/ocgabs/Caribbean.git $CONFIG
Activate the NEMO4 branch of the repo
cd $WDIR
git checkout release-4.0

(step) Get the code:
svn co https://forge.ipsl.jussieu.fr/nemo/svn/NEMO/releases/r4.0/ NEMO4

Skip the following steps since you can use the same XIOS you previously compiled ;)
or even link to a precompiled one on ARCHER2 that sits here
/work/n01/shared/acc/xios-2.5/
(you can copy it or link it to the default location /work/n01/n01/$USER/XIOS)

Make a mod (line 480)...
This hack (adding -J flag) is also needed for NEMO4, but the file sits in a different place
vi $WDIR/NEMO4/r4.0-HEAD/ext/FCM/lib/Fcm/Config.pm
and edit the file as follows:
480G takes you to the line 480
i start INSERT mode
Add the famous -J so the line looks like this:
FC_MODSEARCH => '-J', # FC flag, specify "module" path
wq write and quit vi
(I am not sure which other text editors are available on ARCHER2)

Copy the cpp file, MY_SRC, and EXP00 folders from the cloned repository to the expected place in the NEMO structure (cfgs/Caribbean):

cd $CDIR
mkdir $CONFIG
cp $WDIR/cpp_Caribbean.fcm $CDIR/$CONFIG
cp -r $WDIR/MY_SRC $CDIR/$CONFIG
cp -r $WDIR/EXP00 $CDIR/$CONFIG

Load the modules required for compiling::
module unload craype-network-ofi
module unload cray-mpich
module load craype-network-ucx
module load cray-mpich-ucx
module load libfabric
module load cray-hdf5-parallel
module load cray-netcdf-hdf5parallel
module load gcc

Get a copy of the ARCHER2 ARCHitecture file in the right place
cp /work/n01/shared/acc/arch-X86_ARCHER2-Cray.fcm $Trunk/arch

Go to the compiling folder
cd ..
You should be at r4.0-HEAD (aka $Trunk)
./makenemo -n $CONFIG -r AMM12 -m X86_ARCHER2-Cray -j 16

[mpayopayo]

it was giving problems when running.
Moved to r4.0.4