Link Matlab and Cantera

Hello everyone,

I am trying to use Cantera with Matlab. I am using matlab v2020b, Visual Studio 2022, python 3.13 and use Cantera v3.0 as v3.1 seems not to be compatible with the Matlab interface, as mentioned on their website. I tried several solutions, but I am still stuck, and the documentation for v3.0 is no longer available: https://cantera.org/install/index.html (not found).

1. First, I tried using conda with the following command:

conda create --name ct-env --channel cantera cantera cantera-matlab

However, after setting the ctpath.m, I encountered the following error:

gas = Solution('gri30.xml') Invalid MEX-file 'C:\Users\*\*.conda\envs\ct-env\share\cantera\matlab\toolbox\ctmethods.mexw64': The specified procedure could not be found.

The MEX file is present but seems to not be working.

2. I also tried cloning the Git repository, followed by scons build and installation.

This gave me the Matlab experimental folder. I followed the README procedure and changed the ctRoot.m to put the path to my conda environment, but I encountered this error:

Error using loadlibrary Could not find file C:\Users\*\*.conda\envs\ct-env2\include\cantera\clib\ctmatlab.h.

After some research, I found that maybe my python version is not compatible with my matlab version, refer https://fr.mathworks.com/support/requirements/python-compatibility.html & https://groups.google.com/g/cantera-users/c/KVK3EBwOVfw I tried changing to python 3.8 but same error appears. I also found that an .msi installer is also available, and I will try this option last, but I would prefer to stick with conda if possible. If anyone knows how to make it work, I would really appreciate your help.

Lastly, I tried using the Python extension, and it works: such as py.cantera.Solution('gri30.yaml') cmd. However, I do not want to be dependent on Python, as I may need to compile my code using Simulink/Matlab Coder.

Have a nice day!

Answer 1

[Léo]

[UPDATE]

The easiest method is to download the .msi and install it. Everything is now running smoothly.

Release Cantera 3.0.0 · Cantera/cantera · GitHub