Hi
I am beginning with Kwant and encounter a problem with that in running the
attached manuscript to this email. Please let me know how to solve this
problem.
Regards
Hi,
I recently got a new computer, MacBook Pro, Sonoma 14.6.1 with chip Apple M3 Pro, and I installed kwant with Conda, as I did in the past many times in other computers (both Mac and Ubuntu). The installation seemed to had succeeded. However, when I do "import kwant", an error appears. Specifically when I do it in the python prompt of the terminal, the python prompt exits and then the following line appears "Abort trap: 6". I have tried to search for this error in relation to python packages …
[View More]but I haven't been able to find something that can help me. Additionally, by trying to understand and fix this, I found the following. If I go the the solvers folder where kwant is installed within the Conda environment, and I do "import kwant" again in the python prompt, kwant gets imported but I get the following message: /Users/XXX/anaconda3/envs/kwant/lib/python3.12/site-packages/kwant/solvers/default.py:16: RuntimeWarning: MUMPS is not available, SciPy built-in solver will be used as a fallback. Performance can be very poor in this case.
warnings.warn("MUMPS is not available, "
I do have mumps installed (mumps-include, mumps-seq, python-mumps) when I check with "conda list mumps", so I don't really understand what is going on. I figured the most possible explanation may be related to the fact this Mac has an apple silicon chip, as this sometimes gave me problems in some other situations. However, I have not found anybody in this mail list posting error messages related to apple silicon chips.
Any help and direction will be greatly appreciated.
Best,
Marc
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