I’ve tried to install fenics and use the repository of the paper “Hybrid FEM-NN models: Combining artificial neural networks with the finite element method]” to calculate a linear Physics-Informed Neural Network for a linear problem (https://github.com/sebastkm/hybrid-fem-nn-examples/tree/main/examples/pinn_linear).
I’m using Windows 11 and Python 3.10.4.
To run the script main.py I need to use the fenics package. As usual working in python I did
pip install fenics
which worked without any problems. Trying to run the script prompted the error
from fenics import *
ModuleNotFoundError: No module named 'fenics'
After reading a couple of posts on this issue I made sure there are no other virtual environments anymore and that the path sys.path :
C:\Users\neuma\AppData\Local\Programs\Python\Python310\Lib\site-packages
contains the folder which contains the installed fenics packages:
fenics_dijitso-2019.1.0.dist-info
fenics_ffc-2019.1.0.post0.dist-info
fenics_fiat-2019.1.0.dist-info
fenics_ufl-2019.1.0.dist-info
fenics-2019.1.0.dist-info
I’ve noted that there is no folder named just fenics.
After this attempt did not work I tried to follow the instruction for DOLFINx (https://docs.fenicsproject.org/dolfinx/main/python/installation.html#dependencies) since some posts mentioned dolfinx and fenics are the same.
After installing the docker I followed the instructions on running fenics within the docker (https://fenics.readthedocs.io/projects/containers/en/latest/introduction.html#installing-docker). This at least seemed to work using the Terminal:
C:\Users\neuma>docker run -ti quay.io/fenicsproject/stable:latest
# FEniCS stable version image
Welcome to FEniCS/stable!
This image provides a full-featured and optimized build of the stable
release of FEniCS.
To help you get started this image contains a number of demo
programs. Explore the demos by entering the 'demo' directory, for
example:
cd ~/demo/python/documented/poisson
python3 demo_poisson.py
fenics@9548d966c2fc:~$ cd ~/demo/python/documented/poisson
fenics@9548d966c2fc:~/demo/python/documented/poisson$ python3 demo_poisson.py
Calling FFC just-in-time (JIT) compiler, this may take some time.
Calling FFC just-in-time (JIT) compiler, this may take some time.
Calling FFC just-in-time (JIT) compiler, this may take some time.
Calling FFC just-in-time (JIT) compiler, this may take some time.
Calling FFC just-in-time (JIT) compiler, this may take some time.
Calling FFC just-in-time (JIT) compiler, this may take some time.
Solving linear variational problem.
To view figure, visit http://0.0.0.0:8000
Press Ctrl+C to stop WebAgg server
Visiting the url prompt the following message:
This page is not working
0.0.0.0 has not sent any data.
ERR_EMPTY_RESPONSE
Since I seem to have tried all possible versions of installation of fenics (and/or Dolfinx) and nothing worked I want to ask here if anyone could help me with the installtion.
I’m pretty confused about how to understand the difference betweend fenics and dolfinx and why I need Ubuntu or Linux and a Docker to run a package which already seems to be installed in python . Maybe this screenshot will make it a little clearer:
If you need any more information just let me know. Would be great if someone could help me out.
Oskar
