[Scip] When/how to use CONSINITLP?

[michael.winkler@zib.de]

Hi,

probably what you need is only to set for all constraint in F\S the
initial flag to FALSE.

See for example method creating a linear constraint:

http://scip.zib.de/doc/html/cons__linear_8h.html#aa7aed137a4130b35b168812414413481

(This also should hold if you have your own constraint handler handling
these constraints.)

(THE CONSINITLP callback is called before each initial lp at a node will
be solved.)

Best, Micha

> Hi,
>
> I have a family F of valid inequalities that I want to treat via a
> constraint handler.
> A subset S of these valid inequalities can be added a priori, while the
> inequalities in
> F\S should be separated only when they are violated.
> Where would I add the inequalities in S to the problem? I could add them
> to
> the model
> as linear constraints, but since they belong to the family F I would like
> to add them in
> the constraint handler. Is this what the CONSINITLP callback is for? Until
> now I have
> never had a use for that …Or do I have to add them to the model as
> linear
> constraints?
>
> Best,
>
>   Daniel
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