How can I set model/solver options, especially for HiGHS ?

[lucidfrontier45]

I tried to set time limit option but I found there is no way to call highs::Model::set_option .

With good_lp API the only chance I can get an instance of highs::Model is to call good_lp::solvers::highs::HighsProblem::into_inner as solve does internally.

good_lp/src/solvers/highs.rs

Line 65 in 65b4018

pub fn into_inner(self) -> highs::Model {

Then I can have several set_option calls and at the end solve method call. Even though I still cannot have HighsSolution instance as solution: highs::Solution field is private and HighsSolution does not have any explicit constructor like new method.

good_lp/src/solvers/highs.rs

Line 126 in 65b4018

pub struct HighsSolution {

Can you give me any suggestion to simultaneously use good_lp API as well as set Highs options?

Thank you.

[lovasoa]

Good_lp offers the into_inner escape hatch if you need to work with a raw Highs instance. But if you use it, you are then on your own, and have to use highs directly to get your solution.
I don't think it would be a good thing for good_lp to let you do anything you want with the model, and then take it back as if nothing happened. The model you give back could have nothing to do with the one good_lp initially handed out to you !
However, if there are options that are safe to use within good_lp, please open a pull request to add support for them directly in good_lp !