Hi Everyone,
I installed dolfinx and dolfinx_mpc on WSL2 using
sudo apt install python3-dolfinx
sudo apt install python3-dolfinx-mpc
When I try to solve a problem with periodic boundary conditions, the following RuntimeError is raised:
mpc.create_periodic_constraint_geometrical(V, slave, master, bcs, scale)
File "/usr/lib/python3/dist-packages/dolfinx_mpc/multipointconstraint.py", line 286, in create_periodic_constraint_geometrical
mpc_data = dolfinx_mpc.cpp.mpc.create_periodic_constraint_geometrical(
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
RuntimeError: std::bad_cast
Could this be an installation issue? Or what are my options for debugging this?
dokken
2
Could you provide the full code you are running?
For instance, using docker to emulate your commands:
FROM ubuntu:24.04
RUN apt-get update && apt-get install -y software-properties-common
RUN add-apt-repository ppa:fenics-packages/fenics
RUN apt update && apt install -y python3-pip python3-dolfinx python3-dolfinx-mpc git
WORKDIR /src
RUN git clone --single-branch --branch=v0.9.1 https://github.com/jorgensd/dolfinx_mpc.git
RUN python3 -m pip install pytest --break-system-packages
RUN python3 -m pytest -xvs dolfinx_mpc/python/tests
which I execute with
docker build -t test_dolfinx_mpc -f Dockerfile .
passes
Sorry I forgot to update the post.
Turns out I misinterpreted the indicator and relation variables that have to be supplied to
mpi.create_period_constraint_geometrical()
My bad for not reading the docs well enough.