Disabling tearing breaks code generation in power system model

[Francesco Casella]

Please try to run the PowerGrids.Examples.IEEE14bus.IEEE14busStaticNetwork model with --tearingMethod=noTearing or with --maxSizeNonlinearTearing=2. Some red lines zip by during C compilation, and eventually the compilation process fails.

I guess there is something wrong related to the handling of tearing, please check.

Thanks!

[Andreas Heuermann]

Please try --tearingMethod=minimalTearing. When disabling tearing discrete variables can remain inside loops, which will break in code-generation or at simulation time. Minimal tearing will only tear discrete variables from loops and should supersede noTearing.

I couldn't find PowerGrids so I couldn't test if it actually works.

[Francesco Casella]

Replying to AnHeuermann:

Please try --tearingMethod=minimalTearing. When disabling tearing discrete variables can remain inside loops, which will break in code-generation or at simulation time. Minimal tearing will only tear discrete variables from loops and should supersede noTearing.

OK. Please add a comment about this to the ​documentation
because it is by no means obvious.

I couldn't find PowerGrids so I couldn't test if it actually works.

I should have sent it to you by e-mail, but now I can check myself, don't worry.

Thanks!

[Andreas Heuermann]

Yes, the documentation is quite wrong. I'll update it.

[Francesco Casella]

Ping!

Thanks!

[Andreas Heuermann]

See ​PR #360.

Where would be a good place for a more precise and detailed explanation? Maybe I'll just link my presentation from this years ModelicaWorkshop behind the explanation of the flag.

[Francesco Casella]

See comment in the pull request. A link to an online document and/or to doi's of papers is just fine.

[Francesco Casella]

The documentation was updated in ​PR #630