Documentation request for Fenics-Dolfin-2019

[dokken]

@FrancoisPage

I’m working with an older codebase, it is small. It’s written using fenecs-dolfin-2019

It would be nice to have access to the old documentation. The LSP provided with python isn’t complete, it lacks some type inferance, hence I can’t find the exact method available and their argument types.

If possible, could you repost the documentation from back then?

Documentation for legacy dolfin is available for various versions at https://olddocs.fenicsproject.org/dolfin/

@FrancoisPage

Does the set of feature dolfinx offer >= the set dolfin features?

DOLFINx extends DOLFIN in many ways, including:

• arbitrary order geometry
• Quadrilateral elements and hexahedral elements
• Every operation is MPI compatible.
  and many other things.

@FrancoisPage

Or the span of what is possible at least? Is dolfinx still in beta, are bug expected and debugging on the C++ binding incomplete?

DOLFINx has been out of «beta» release since 2022, ref

The new DOLFINx solver is now recommended over DOLFIN

In April 2022 we released versions of the new FEniCS Project components; DOLFINx (v0.4.1) , FFCx (v0.4.2), Basix (v0.4.1) and UFL (2022.1.0.post0). These projects are hosted under our GitHub account at FEniCS Project · GitHub We now recommend that all new projects begin in the new DOLFINx problem solving environment, rather than the old DOLFIN problem solving environment. We consider DOLFINx to be superior to the old DOLFIN, particularly in terms of performance, scalability, API consistency and…

It is actively developed and maintained.
For the latest addition in the last release see:

FEniCS release notes

There is also the preprint:

DOLFINx: The next generation FEniCS problem solving environment

that explains the rationale of DOLFINx + expands on the usage of some specific features.

There are also many tutorials, including
https://jsdokken.com/dolfinx-tutorial/
jsdokken.com/FEniCS-workshop/README.html
and many others.