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 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
