Mumax plus installation

[Joy Sharma]

Hi everyone, I tried to installed mumax plus but I failed when I run the following command at anaconda :

pip install .

Error  error: subprocess-exited-with-error

  × Building wheel for mumaxplus (pyproject.toml) did not run successfully.
  │ exit code: 1
  ╰─> No available output.

  note: This error originates from a subprocess, and is likely not a problem with pip.
  full command: 'C:\Users\Bhattacharya-Lab\Documents\anaconda\python.exe' 'C:\Users\Bhattacharya-Lab\Documents\anaconda\Lib\site-packages\pip\_vendor\pyproject_hooks\_in_process\_in_process.py' build_wheel 'C:\Users\BHATTA~1\AppData\Local\Temp\tmph178f0dl'
  cwd: C:\Users\Bhattacharya-Lab\mumaxplus
  Building wheel for mumaxplus (pyproject.toml) ... error
  ERROR: Failed building wheel for mumaxplus
Failed to build mumaxplus
error: failed-wheel-build-for-install

× Failed to build installable wheels for some pyproject.toml based projects
╰─> mumaxplus

[Ian Lateur]

Hi,

Could you post the verbose version of the output (as a file) using the -v flag?

pip install -v .

Thanks! 

Op wo 6 mei 2026 om 07:29 schreef 'Joy Sharma' via mumax2 <mum...@googlegroups.com>:

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[Joy Sharma]

Hi Ian, thank you for responding. I upload the file here. do you successfully install mumaxplux?

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[Ian Lateur]

Hi,

Looking through the output, it would seem that CUDA Toolkit is not (properly) installed. As specified in the documentation, you can download a CUDA Toolkit installer for Windows here. Which version depends on your GPU.

Hope this helps!

Ian

Op wo 6 mei 2026 om 20:05 schreef 'Joy Sharma' via mumax2 <mum...@googlegroups.com>:

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[Joy Sharma]

I tried all possible ways but when i run pip install . command , it fails all time. 

[Josh Lauzier]

Hi,

One important detail in addition to installing CUDA, is making sure that it's on your PATH and/or a place the installer can find it. It does not get added by default.

You may also need to check versions of Python/MSVC. (see e.g. this [discussion](https://github.com/mumax/plus/issues/114)). In particular some of the newest MSVC can be kind of picky about integrating cuda, or working with Cuda 13.0

Best,
Josh L.

[Jonathan Maes]

Hi,

Over the past week, I have been trying to automate the building of Python wheels to simplify the installation of mumax+.

Earlier today, I added them to the most recent release on GitHub, where the .whl files can be found under "Assets".

Could you try to download the appropriate .whl (taking into account your Python version and operating system) and install it using the command "pip install name_of_wheel.whl"?

Please let me know if you encounter any errors with this procedure.

P.S.: "pip install mumaxplus" should now also work (though I have only released a dummy 1.2.0.dev1 release for now), but this is no different from the original build procedure except that the user does not need to clone the git repository first. Sadly, the default file upload limit on PyPI is 100MB, so for the time being the pre-built wheels can not be provided through that channel.

Best regards,

Jonathan

Op donderdag 14 mei 2026 om 04:30:19 UTC+2 schreef Josh Lauzier: