Hi Slava, Indeed your suggestion worked. What I was missing was the final compilation after installing the build-essential tools. Thanks a lot! Alessandro
*--- oOo ---* *Alessandro Lodi | Clarendon Scholar | DPhil Student |* *Trinity College, University of Oxford,* *+44 (0) 7517 549419 (UK Mobile)* *+39 334 3282421 (ITA Mobile)* *--- oOo ---* On Wed, 3 Feb 2021 at 12:18, Viacheslav Ostroukh <kwant_...@slavouti.ch> wrote: > Dear Alessandro, > > I assume you installed Kwant from pip, since if you installed it from > conda/conda-forge you would probably not have problems with MUMPS. In > pip Kwant is distributed from source codes and needs to find MUMPS in > the system. To build it, you need to install: > > apt install build-essential python3-dev libmumps-seq-dev > pip install kwant sympy matplotlib > > Then on a fresh Ubuntu 20.04 everything seems to install fine and > without extra configuration. > > Hope that helps, > Slava > > On 02/02/2021 16:07, alessandro.l...@materials.ox.ac.uk wrote: > > Hi guys, > > > > I'm running kwant on WSL2 Ubuntu 20.04 and I followed along with your > installation procedure. > > I've tried to follow along with the examples you provide on the website > and the workshop you had a couple of months ago and when it's time to > calculate smatrix.transmission(1, 0) for a very simple 1-D scattering > problem it doesn't. > > When I run the python test I get a few errors back, mainly from the > test_mumps.py source. > > I understand it's a bit vague said in this way but I have tried to copy > and paste the screenshot of my error and the text file but it seems the > post window doesn't allow such thing. > > I'm a beginner, so any help would be appreciated. > > Thanks a lot, >