Nutils code in prependicular-flap/fluid-nutils does not work for Nutils v7.0

[IshaanDesai]

• Tutorials state (last commit / release): https://github.com/precice/tutorials/tree/d2c70c09e6ae50c2a586edfe9008730902ebb980
• Versions of solvers and adapters used: Nutils v7.0a0
• preCICE version: v2.2.1

The Nutils code in perpendicular-flap/fluid-nutils does not work and produces the following error:

Traceback (most recent call last):
  File "fluid.py", line 13, in <module>
    @function.replace
AttributeError: module 'nutils.function' has no attribute 'replace'

Nutils was installed by cloning the repository from GitHub and running python3 -m pip install --user .

[uekerman]

The tutorial only works with the latest Nutils release, v6. For Nutils develop (v7), the tutorial needs some updating.

python3 -m pip install --user https://github.com/evalf/nutils/archive/master.zip

[IshaanDesai]

he tutorial only works with the latest Nutils release, v6. For Nutils develop (v7), the tutorial needs some updating.

Okay, that explains it. I will take care of the update as the new release comes in.

[IshaanDesai]

Nutils v7.0 has been released and hence this issue is now relevant

[uekerman]

Some comment @gertjanvanzwieten wrote to me a while back

Actually, in master we extended to solver methods to accept multiple targets & residuals, which means we don't have to chain anymore, which also means dofs don't need to be vectors anymore; instead we can define u_i = basis_n ?udofs_ni, which simplifies things considerably. As soon as we release v7, I propose to rework this example to the new form so it becomes insensitive to things like dof ordering that really shouldn't reach the surface at any point.

[uekerman]

Let's document which tutorials version requires which Nutils version on https://precice.org/adapter-nutils.html

[gertjanvanzwieten]

I'd be happy to help port things over to Nutils 7 if that's welcome.

[uekerman]

Any help would be much appreciated :hugs:

Relevant codes are:

• partitioned heat conduction: heat.py
• flow over heated plate: solid.py
• perpendicular flap: fluid.py

[gertjanvanzwieten]

Cool, I'll try to look into it this week still

[MakisH]

I added an overview of the current support state in https://github.com/precice/precice.github.io/pull/228. The main script we still need to port is https://github.com/precice/tutorials/blob/develop/perpendicular-flap/fluid-nutils/fluid.py

(thanks for all the help already in the other scripts! :hugs:)

[MakisH]

I think that we can close this, now that we install Nutils separately for each tutorial.