Questions tagged [highs]

HiGHS is a free and open-source solver for linear programming (LP), convex quadratic programming (CQP) and mixed integer programming (MILP). Ask questions about usage, bugs, interfaces, behavior.

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Is there any way to use Lazy constraints in Pyomo?

I would like to know if there is any way to implement a Lazy constraint in the Pyomo package. (As far as I know, the only way to implement such a constraint is by using the Gurobi solver as described ...
A.Omidi's user avatar
  • 8,882
3 votes
1 answer

Equivalent constraints in MILP give different answers

I'm getting unexpected results from the HiGHS solver in scipy (scipy.optimize.linprog with integrality constraints). In my mixed integer program one of my constraints is that $x_0 \geq 100$. I get a ...
Hubcity's user avatar
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2 answers

Starting with HiGHS

I have been messing about with HiGHS and trying to get a hang of its capability. Here is an example of a simple model from their github repo
Erin Walter's user avatar