default.py:18: RuntimeWarning: MUMPS is not available, SciPy built-in solver will be used as a fallback.
Hi,
This is ubuntu 19.10 + miniconda-lastet, I installed the mumps into the env:
$ conda list | grep -i mumps
mumps 5.1.2 blas_openblash15930f7_1001 [blas_openblas] conda-forge
mumps-include 5.2.1 5 conda-forge
mumps-seq 5.2.1 h9dc29ad_5 conda-forge
I install the git master version of kwant into my miniconda-based virtualenv as following:
$ git clone https://github.com/kwant-project/kwant.git kwant.git
$ cd kwant.git
$ python setup.py install
Then I try the following commdand:
$ ipython
Python 3.7.6 | packaged by conda-forge | (default, Mar 5 2020, 15:27:18)
Type 'copyright', 'credits' or 'license' for more information
IPython 7.13.0 -- An enhanced Interactive Python. Type '?' for help.
In [1]: import kwant
/home/werner/.pyenv/versions/miniconda3-latest/envs/pymatgen/lib/python3.7/site-packages/kwant-1.5.0a0.dev64+gfa4a842-py3.7-linux-x86_64.egg/kwant/solvers/default.py:18: RuntimeWarning: MUMPS is not available, SciPy built-in solver will be used as a fallback. Performance can be very poor in this case.
"Performance can be very poor in this case.", RuntimeWarning)
Any hints for this issue?
Regards
Edited by hongyi-zhao