[SCIP] Re-solving problems with constraint change?
Ambros Gleixner
gleixner at zib.de
Wed Oct 27 15:34:13 CEST 2021
Dear Geri,
Yes, you have to call SCIPfreeTransform() and afterwards you can use the
methods of the constraint handlers, for you probably the SCIPchg...
methods of
https://scipopt.org/doc-7.0.3/html/cons__linear_8c.php
Afterwards just call SCIPsolve() again.
Best,
Ambros
Am 27.10.2021 um 15:23 schrieb Geri K:
> Dear All,
> is it possible with the SCIP C API to call solving again with changed
> constraint linear coefficients?
> So it would be probably faster than re-creating the whole problem.
> I would not change the constraint variables included, only their
> coefficients.
> I could not find an example or api documentation for this, is it possible
> and if yes, what calls are needed?
> Thank you,
> Geri
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