FEniCS Project - The FEniCS Project is an open source automatic finite element library

FEniCS Project

Topic	Replies	Views	Activity
Announcement: ufl_legacy and legacy dolfin Announcements tl;dr: UFL is no longer compatible with legacy dolfin. A ufl_legacy package will be created to help keep old dolfin projects computing. Depending on how you use ufl, you might need to replace import ufl with import ufl_…	4	3683	August 17, 2023
Read before posting: How do I get my question answered? Announcements Here are a few tips to help get your question answered: Write your message in English. Phrase the title of your post as a question and make it meaningful. Check that your question hasn’t been asked before using the sea…	3	12081	April 22, 2021
Error running nonlinear mixed problem in Apptainer container (PETSc / dolfinx environment issue?) installation	2	7	January 16, 2026
Incompatible function arguments Errors	6	20	January 16, 2026
Inconsistent behaviors of the "ds" measure between dolfinx v0.9.0 and v0.10.0 General	1	38	January 15, 2026
Long-range coupling dolfinx dolfinx_mpc	4	57	January 15, 2026
Speeding up Navier Stokes code General	0	23	January 14, 2026
Axisymmetric Hertz Contact dolfinx	1	25	January 14, 2026
Does parallelization help mumps? Linear Algebra	3	76	January 13, 2026
Difference between a Newton solver and a linear solver for a linear problem. Linear Algebra	1	28	January 12, 2026
Importing 3D mesh Legacy DOLFIN mesh	1	21	January 12, 2026
Interpolation to and from sub-meshes, entity map dolfinx	2	36	January 12, 2026
Efficient solution strategies for 3D Cahn-Hilliard-Navier-Stokes linear systems (Newton iteration) with slow MUMPS direct solver in FEniCS General	1	54	January 10, 2026
MPI run Issue: Other Ranks Appear to Stop When One Rank Finishes General mpi	1	27	January 9, 2026
Boundary conditions on decoupled system dolfinx boundary-conditions	4	83	January 9, 2026
Convergence rate of Maxwell simulation using custom L2 norm and cell-center sampling mathematics	4	48	January 9, 2026
Dolfinx C++ equivalent of function.vector.set_local/get_local General	2	20	January 9, 2026
From 0.9 to 0.10: Issues at custom SNES Interface for blocked problems dolfinx dolfinx	2	34	January 8, 2026
How to improve accuracy of enforced integral constraints involving derivatives General dolfinx , variational-form	4	57	January 8, 2026
Parallelize zeroing rows operation General	5	30	January 6, 2026
Space-Time weak formulation variational formulation dolfinx , variational-form	4	54	January 6, 2026
Constrained surface with svmtk mesh boundary-conditions	3	48	January 6, 2026
Exclude domain boundary facets from subdomain_data dolfinx dolfinx	9	109	January 5, 2026
Shape optimization in complex dolfinx variational formulation dolfinx	7	84	January 5, 2026
Right boundary conditions for linear elastic compression of a cube dolfinx boundary-conditions	2	36	January 5, 2026
Steady-state equations do not evolve in P2D model General dolfinx	0	28	January 5, 2026
How to best utilize MPI and CUDA dolfinx mpi	5	150	January 5, 2026
Self-contact in FEniCSx for large-deformation compression of a microstructured solid: is there any working example or recommended approach? General	3	87	January 3, 2026
Mismatch between submesh `dx` and parent `ds` integrals with `entity_maps` in DOLFINx dolfinx	1	60	December 31, 2025
Computing derivative of residual vector w.r.t material parameter for finite element model updating dolfinx variational-form , ufl	4	105	December 29, 2025