Magnetic Dynamics Python Package doesn't build on Mac M3

[nviolini]

I wanted to try out the Magnetic Dynamics Python Package to see if I can leverage it for spin waves calculations. Unfortunately it seems that I'm running into a local problem when building the package. Some libraries are not found and I can't seem to solve it on my own.

I attach the warnings/errors log in a separate file.

takin-log.txt

[tweber-ill]

Hello,

indeed, there's some dependencies missing. From what I see in the log, you'll still have to install Lapack / Lapacke (i.e. the Fortran library and its C bindings) as well as Gemmi.

• Gemmi you can install by running "bash ../setup/externals/setup_externals_mag.sh" from within the "mag-core" directory.
• Lapack(e) you should be able to find in homebrew. Alternatively, you can build it using the "setup/externals/build_lapacke.sh" script.

Hope that helps. The building process can be a bit complicated, especially on Mac.

[nviolini]

After installing the dependencies, the build worked. I'm testing the installation running some scripts, and it seems ok so far. I still get some warnings. I share here for your information:

• Lapack complex type warning: 'lapack_make_complex_float' has C-linkage specified, but returns user-defined type 'std::complex' which is incompatible with C

• Missing Libraries (Faddeeva, QHull, Minuit)

• unused parameter warnings: unused parameter 'fixed_params' unused parameter 'verbose'

[tweber-ill]

Hello,

many thanks for the feedback, glad to hear that it runs now!

The warnings can be ignored, they are either harmless (the C linkage one), are general warnings from tlibs for things that are present in the library but not used in Magdyn (Faddeeva and QHull), or about parts on which I'm currently working and which are still disabled by default (Minuit for finding the ground state).