conda create -n dclaw_mwe python=3.11 conda activate dclaw_mwe conda install pip

conda install pyyaml -c conda-forge

cd .. git clone https://github.com/geoflows/D-Claw export CLAW=.../D-Claw cd D-Claw/python pip install -e .

conda install -c conda-forge gfortran

export FFLAGS='-O2 -fopenmp -fdefault-double-8 -fdefault-real-8 -fdefault-integer-8 -fallow-argument-mismatch'

echo $FFLAGS -march=core2 -mtune=haswell -ftree-vectorize -fPIC -fstack-protector -O2 -pipe -isystem /opt/anaconda3/envs/dclaw_mwe/include

cd ../../dam_break_twostep make new python setup.py make .output

cd ../dam_break_restart make new python setup.py make .data ln -s ../dam_break_twostep/_output/fort.chk0001 restart.data./xgeoclaw

dam_break_twostep/_output/fort.q0001 <- made without restart dam_break_restart/fort.q0002 <- made with restart

dam_break_basecase is a basecase of a not so simple mwe for dclaw

to test restart we have two cases

both have only one grid, level 1

• dam_break_twostep, which runs two coarse grid timesteps, generating _output/fort.chk0001.

• symlink _output/fort.chk0001 to dam_break_restart/restart.data

then run ./xgeoclaw from within that directory, the second coarse timestep will be taken, generating a difference.

We had a hard time getting the make .output to see the restart.data file correctly.