Installation

The following steps work installing the dependencies in Linux via apt-get or in macOS using brew or macports. While using packages managers such as Anaconda, Miniforge, or Mamba might work, these are not tested.

Python package

To install the pyopmnearwell executable from the development version:

pip install git+https://github.com/cssr-tools/pyopmnearwell.git

If you are interested in a specific version (e.g., v2024.10) or in modifying the source code, then you can clone the repository and install the Python requirements in a virtual environment with the following commands:

# Clone the repo
git clone https://github.com/cssr-tools/pyopmnearwell.git
# Get inside the folder
cd pyopmnearwell
# For a specific version (e.g., v2024.10), or skip this step (i.e., edge version)
git checkout v2024.10
# Create virtual environment
python3 -m venv vpyopmnearwell
# Activate virtual environment
source vpyopmnearwell/bin/activate
# Upgrade pip, setuptools, and wheel
pip install --upgrade pip setuptools wheel
# Install the pyopmnearwell package
pip install -e .
# For contributions/testing/linting, install the dev-requirements
pip install -r dev-requirements.txt

Tip

Typing git tag -l writes all available specific versions.

OPM Flow

You also need to install:

Tip

See the CI.yml script for installation of OPM Flow (binary packages) and the pyopmnearwell package in Ubuntu.

Source build in Linux/Windows

If you are a Linux user (including the Windows subsystem for Linux), then you could try to build Flow (after installing the prerequisites) from the master branches with mpi support by running in the terminal the following lines (which in turn should build flow in the folder ./build/opm-simulators/bin/flow):

CURRENT_DIRECTORY="$PWD"

for repo in common grid simulators
do
    git clone https://github.com/OPM/opm-$repo.git
done

mkdir build

for repo in common grid
do
    mkdir build/opm-$repo
    cd build/opm-$repo
    cmake -DUSE_MPI=1 -DWITH_NDEBUG=1 -DCMAKE_BUILD_TYPE=Release -DCMAKE_PREFIX_PATH="$CURRENT_DIRECTORY/build/opm-common" $CURRENT_DIRECTORY/opm-$repo
    make -j5 opm$repo
    cd ../..
done

mkdir build/opm-simulators
cd build/opm-simulators
cmake -DUSE_MPI=1 -DWITH_NDEBUG=1 -DCMAKE_BUILD_TYPE=Release -DCMAKE_PREFIX_PATH="$CURRENT_DIRECTORY/build/opm-common;$CURRENT_DIRECTORY/build/opm-grid" $CURRENT_DIRECTORY/opm-simulators
make -j5 flow
cd ../..

Tip

You can create a .sh file (e.g., build_opm_mpi.sh), copy the previous lines, and run in the terminal source build_opm_mpi.sh

Source build in macOS

For macOS, there are no available binary packages, so OPM Flow needs to be built from source, in addition to the dune libraries (see the prerequisites, which can be installed using macports or brew). For example, with brew the prerequisites can be installed by:

brew install boost@1.85 cmake openblas suite-sparse python@3.12

Note

boost 1.89.0 was made available recently (August 14th, 2025), which it is not compatible with OPM Flow (yet). Then, we install boost 1.85, and add the cmake path to the boost include folder, as shown in the bash lines below.

This can be achieved by the following lines:

CURRENT_DIRECTORY="$PWD"

for module in common geometry grid istl
do   git clone https://gitlab.dune-project.org/core/dune-$module.git --branch v2.9.1
done
for module in common geometry grid istl
do   ./dune-common/bin/dunecontrol --only=dune-$module cmake -DCMAKE_DISABLE_FIND_PACKAGE_MPI=1
     ./dune-common/bin/dunecontrol --only=dune-$module make -j5
done

for repo in common grid simulators
do
    git clone https://github.com/OPM/opm-$repo.git
done

source vpyopmnearwell/bin/activate

mkdir build

for repo in common grid
do
    mkdir build/opm-$repo
    cd build/opm-$repo
    cmake -DWITH_NDEBUG=1 -DUSE_MPI=0 -DCMAKE_BUILD_TYPE=Release -DCMAKE_PREFIX_PATH="/opt/homebrew/opt/boost@1.85/include;$CURRENT_DIRECTORY/dune-common/build-cmake;$CURRENT_DIRECTORY/dune-grid/build-cmake;$CURRENT_DIRECTORY/dune-geometry/build-cmake;$CURRENT_DIRECTORY/dune-istl/build-cmake;$CURRENT_DIRECTORY/build/opm-common" $CURRENT_DIRECTORY/opm-$repo
    make -j5 opm$repo
    cd ../..
done

mkdir build/opm-simulators
cd build/opm-simulators
cmake -DUSE_MPI=0 -DWITH_NDEBUG=1 -DCMAKE_BUILD_TYPE=Release -DCMAKE_PREFIX_PATH="/opt/homebrew/opt/boost@1.85/include;$CURRENT_DIRECTORY/dune-common/build-cmake;$CURRENT_DIRECTORY/dune-grid/build-cmake;$CURRENT_DIRECTORY/dune-geometry/build-cmake;$CURRENT_DIRECTORY/dune-istl/build-cmake;$CURRENT_DIRECTORY/build/opm-common;$CURRENT_DIRECTORY/build/opm-grid" $CURRENT_DIRECTORY/opm-simulators
make -j5 flow
cd ../..

Tip

See this repository dedicated to build OPM Flow from source in the latest macOS (GitHub actions).