Clawpack
Install using script
I have made a shell script which installs clawpack from source and uses conda to get python packages.
wget https://raw.githubusercontent.com/cpraveen/cfdlab/master/bin/clawpack.sh
export CLAW=/path/to/clawpack # where you want to install clawpack sources
bash ./clawpack.sh v5.11.0
Install from source
See here for installation steps
git clone git@github.com:clawpack/clawpack.git
cd clawpack
git tag -l # see available versions
git checkout v5.11.0 # Checkout version you want
git submodule init # for repositories pyclaw, clawutil, visclaw, etc.
git submodule update # clones all the submodule repositories
export CLAW=/path/to/clawpack # in your shell config
If you want to compile python/pyclaw support do this
conda install ipython jupyterlab matplotlib meson-python ninja nose numpy scipy seaborn six
conda install petsc4py # if you want parallel support.
# Add flah "-c conda-forge" if not using miniforge.
cd $CLAW
pip install --user --no-build-isolation -e . # note trailing dot indicating "this directory"
This should install some files in your $HOME/.local/lib/python#.#/site-packages directory.
Recommended: You can also do this inside a conda environment in order to not mess with your base environment, see below for how to do this.
The following command does all the steps: compile, run and make plots
cd $CLAW/classic/examples/acoustics_1d_example1
make .plots
Open _plots/_PlotIndex.html file to see the results.
Make options:
make .exe # compile
make .data # generate claw.data file
make .output # compile and run
make .plots # compile, run and make plots
Install using conda
This does not seem to give the classic fortran version. But it will install pyclaw including parallel version which needs PETSc.
unset CLAW PYTHONPATH # These might interfere if set to something already.
conda create -n claw
conda activate claw
conda install -c conda-forge clawpack ipython jupyterlab nose six seaborn
Test pyclaw: start ipython and
from clawpack.pyclaw import examples
claw = examples.shock_bubble_interaction.setup()
claw.run()
claw.plot()
To go out of this environment
conda deactivate
To delete this environment
conda remove -n claw --all
You can see a list of environments using
conda env list
You may have to set some variables to find the petsc and other libraries; if conda is in /opt/miniforge, then
export PETSC_DIR=/opt/miniforge/envs/claw
export PETSC_ARCH=.
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$PETSC_DIR
Riemann solver book
See here github.com/clawpack/riemann_book and install like this (do this inside your claw conda environment)
git clone https://github.com/clawpack/riemann_book
cd riemann_book
pip install -r requirements.txt
jupyter nbextension enable --py widgetsnbextension
pip install jupyter_contrib_nbextensions
jupyter contrib nbextension install --user
jupyter nbextension enable equation-numbering/main
Examples from the book
The original set of examples designed to run with clawpack-4.3 are here. To run these, download Clawpack-4.3 and set CLAW to the path where it is located. Visualizing the results requires matlab.
Some of these have been converted to run with newer version of clawpack, see here and here. You can get the code like this
cd $CLAW # or where ever you want apps to be
git checkout master
git clone --recursive https://github.com/clawpack/apps
The book examples are in the directory apps/fvmbook.