## Compilation Requirements¶

Click the buttons below to see the required software that you must install to compile Cantera on your operating system.

## Conda & Anaconda¶

### General Notes¶

• These instructions will set you up to build Cantera with the dependencies installed in a Conda environment
• You will need to install compilers for your system by following the instructions in the sections below to install the compiler for your operating system.

### Conda Requirements¶

• Install Anaconda or Miniconda. We highly recommend using the Python 3 version unless you have a specific reason not to.

• On macOS and Linux, add the following code to your .bash_profile file (macOS) or your .bashrc file (Linux) and restart your terminal or shell afterwards:

source /path/to/conda/install/folder/etc/profile.d/conda.sh
conda activate


On Windows, use the Anaconda Prompt (available from the Start Menu).

• Create an environment with the dependencies to build Cantera

conda create --name cantera python=3 scons cython boost numpy
conda activate cantera

• (Optional) If you also want to build the documentation, after you’ve created the environment and activated it, you’ll also need to install the following dependencies

conda install --name cantera sphinx doxygen graphviz

• (Optional) If you also want to build the Python 2 interface (this is unlikely), create another environment for those dependencies:

conda create --name py2k python=2 numpy
conda activate py2k
pip install 3to2
conda activate cantera


and after you’ve cloned the source code, add the following lines to a file called cantera.conf in the root of the source directory (creating the file if it doesn’t exist):

python2_package = 'full'
python2_cmd = '/path/to/conda/install/folder/envs/py2k/bin/python'


Note that it is not possible to simultaneously install the Python 2 and Python 3 interfaces; you’ll have to use separate builds if you want to install both (however, this is an unlikely scenario). For every-day development and testing, the setup described here works well.

• After you’ve cloned the source code, configure the Cantera build by adding the following options to a file called cantera.conf in the root of the source directory (creating the file if it doesn’t exist):

python3_package = 'full'
boost_inc_dir = '/path/to/conda/install/folder/envs/cantera/include'

• Now you can build Cantera with

scons build

• To install Cantera, use the command

scons install prefix=$CONDA_PREFIX  to make sure that the files end up in the right directory ## Linux¶ ### General Notes¶ • To download the source code, installing git is highly recommended in addition to the requirements listed below. • The following instructions use the system-installed versions of Python, but alternate installations such as the Anaconda distribution of Python can be used as well. • Cython is only required to be installed for the version of Python that also has SCons installed; following the instructions below will install Cython for the version of Python installed in the system directories. The minimum compatible Cython version is 0.23. If your distribution does not contain a suitable version, you may be able to install a more recent version using pip. • Users of other distributions should install the equivalent packages, which may have slightly different names. • In addition to the operating systems below, Cantera should work on any Unix-like system where the necessary prerequisites are available, but some additional configuration may be required. ### Ubuntu & Debian¶ • Ubuntu 14.04 LTS (Trusty Tahr) or newer is required; 18.04 LTS (Bionic Beaver) or newer is recommended • Debian 7.0 (Wheezy) or newer; 9.0 (Stretch) or newer is recommended • The following packages must be installed to build any of the Cantera modules using your choice of package manager: g++ python scons libboost-dev  • In addition to the general packages, building the Python 2 module also requires: cython python-dev python-numpy python-numpy-dev python-setuptools  • In addition to the general packages, building the Python 3 module also requires: cython python3 python3-dev python3-setuptools python3-numpy  • In addition to the general packages, building the Fortran module also requires: gfortran  • In addition to the general packages, building the MATLAB toolbox also requires: • MATLAB version later than 2009a • Typically installed to: /opt/MATLAB/R20YYn  where YY is a two digit year and n is either a or b ### Fedora & RHEL¶ • The following packages must be installed to build any of the Cantera modules using your choice of package manager: gcc-c++ python scons boost-devel  • In addition to the general packages, building the Python 2 module also requires: python-setuptools python-devel Cython numpy  • In addition to the general packages, building the Python 3 module also requires: python3 python3-setuptools python3-devel Cython python3-numpy  • In addition to the general packages, building the Fortran module also requires: gcc-gfortran  • In addition to the general packages, building the MATLAB toolbox also requires: • MATLAB version later than 2009a • Typically installed to: /opt/MATLAB/R20YYn  where YY is a two digit year and n is either a or b ### OpenSUSE & SUSE Linux Enterprise¶ • OpenSUSE 13.2 or newer; Leap 42.2 or newer recommended • The following packages must be installed to build any of the Cantera modules using your choice of package manager: gcc-c++ python scons boost-devel  • In addition to the general packages, building the Python 2 module also requires: python-Cython python-devel python-numpy python-numpy-devel python-setuptools  • In addition to the general packages, building the Python 3 module also requires: python-Cython python3 python3-devel python3-setuptools python3-numpy python3-numpy-devel  • In addition to the general packages, building the Fortran module also requires: gcc-fortran  • In addition to the general packages, building the MATLAB toolbox also requires: • MATLAB version later than 2009a • Typically installed to: /opt/MATLAB/R20YYn  where YY is a two digit year and n is either a or b ## Windows¶ ### General Notes¶ • The build process will produce a Python module compatible with the version of Python used for the compilation. To generate different modules for other versions of Python, you will need to install those versions of Python and recompile. • The following instructions use the versions of Python downloaded from https://www.python.org/downloads/, but alternate installations such as the Anaconda distribution of Python can be used as well. • If you want to build the Matlab toolbox and you have a 64-bit copy of Windows, by default you will be using a 64-bit copy of Matlab, and therefore you need to compile Cantera in 64-bit mode. For simplicity, it is highly recommended that you use a 64-bit version of Python to handle this automatically. Note that the default download from the Python website (https://www.python.org) is for a 32-bit installer, and you will need to select the 64-bit installer specifically. • It is generally helpful to have SCons and Python in your PATH environment variable. This can be done by checking the appropriate box during the installation of Python or can be accomplished by adding the top-level Python directory and the Scripts subdirectory (e.g., C:\Python36;C:\Python36\Scripts) to your PATH. The dialog to change the PATH is accessible from: Control Panel > System and Security > System > Advanced System Settings > Environment Variables  Make sure that the installation of Python that has SCons comes first on your PATH. • In order to use SCons to install Cantera to a system folder (e.g. C:\Program Files\Cantera) you must run the scons install command in a command prompt that has been launched by selecting the Run as Administrator option. ### Windows Requirements¶ • Windows 7 or later; either 32-bit or 64-bit • To build any of the Cantera modules, you will need to install • In addition to the general software, building the Python module also requires • Pip • Most packages will be downloaded as Wheel (*.whl) files. To install these files, type: pip install C:\Path\to\downloaded\file\package-file-name.whl  • Cython • http://www.lfd.uci.edu/~gohlke/pythonlibs/#cython • Download the *.whl file for your Python architecture (32-bit or 64-bit) and Python X.Y (indicated by cpXY in the file name), where X and Y are the major and minor versions of the Python where you installed SCons. • Cython must be installed in the version of Python that has SCons installed • NumPy • In addition to the general software, building the Python 3 module also requires • Python 3 • https://www.python.org/downloads/ • Cantera supports Python 3.3 and higher • Be sure to choose the appropriate architecture for your system - either 32-bit or 64-bit • Be careful that the installation of Python with SCons installed comes before the one without, if you have multiple versions of Python installed. • Pip • Most packages will be downloaded as Wheel (*.whl) files. To install these files, type: pip3 install C:\Path\to\downloaded\file\package-file-name.whl  • Cython • http://www.lfd.uci.edu/~gohlke/pythonlibs/#cython • Download the *.whl file for your Python architecture (32-bit or 64-bit) and Python X.Y (indicated by cpXY in the file name), where X and Y are the major and minor versions of the Python where you installed SCons. • Cython must be installed in the version of Python that has SCons installed • NumPy • In addition to the general software, building the MATLAB toolbox also requires: • MATLAB version later than 2009a • Typically installed to: C:\Program Files\MATLAB\R20YYn  where YY is a two digit year and n is either a or b ## OS X & macOS¶ ### General Notes¶ • It is not recommended to use the system-installed version of Python to build Cantera. Instead, the following instructions use Homebrew to install a separate copy of Python, independent from the system Python. • To download the source code, installing git via HomeBrew is highly recommended. • Cython is only required to be installed for the version of Python that also has SCons installed; following the instructions below will install Cython for the version of Python 2 installed in the system directories. The minimum compatible Cython version is 0.23. ### OS X & macOS Requirements¶ • OS X 10.9 (Mavericks) or newer required; 10.10 (Yosemite) or newer is recommended • To build any of the Cantera modules, you will need to install • Xcode • Download and install from the App Store • From a Terminal, run: sudo xcode-select --install  and agree to the Xcode license agreement • Homebrew • https://brew.sh • From a Terminal, run: /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

• Once Homebrew is installed, the rest of the dependencies can be installed with:

brew install python scons boost


Note that brew installs Python 3 by default, but does not over-write the existing system Python. When you want to use the brew-installed Python, you should use python3.

• In addition to the general software, building the Python 2 module also requires:

brew install python@2
pip install numpy

• In addition to the general software, building the Python 3 module also requires:

pip3 install cython numpy


Note that Cython should be installed into the version of Python that has SCons installed.

• In addition to the general software, building the Fortran module also requires:

brew install gcc

• In addition to the general software, building the MATLAB toolbox also requires:

• MATLAB version later than 2009a

• Typically installed to:

/Applications/MATLAB_R20YYn.app


where YY is a two digit year and n is either a or b