CODEWITHSUNDEEP
or-toolsmixed-integer-programming
Bhartendu Awasthi
Bhartendu Awasthi

Reputation: 1029

Support for HiGHS solver in MathOpt [Google OR-Tools], python API

When will the support for HiGHS solver be implemented in MathOpt (ortools) ? I am using MathOpt using python API. I am using ortools==9.9.3963. So for the below sample code, I get the following error :

RuntimeError: INVALID_ARGUMENT: solver type SOLVER_TYPE_HIGHS is not registered, support for this solver has not been compiled

Below is the dummy code:

from ortools.math_opt.python import mathopt
model = mathopt.Model(name="MIP")
x = model.add_integer_variable(lb=-1.0, ub=1.5, name="x")
y = model.add_integer_variable(lb=0.0, ub=1.0, name="y")
model.add_linear_constraint(x + y <= 1.5)
model.maximize(x + 2 * y)
params = mathopt.SolveParameters(enable_output=True)
result = mathopt.solve(model, mathopt.SolverType.HIGHS, params=params)

With GSCIP above runs fine though.

Upvotes: 1

Views: 286

Answers (1)

Laurent Perron
Laurent Perron

Reputation: 11014

It is out in 9.10.

Note that this is still experimental. We have issues with Highs (some cases of memory corruptions that we are working with the Highs team on).

Upvotes: 2

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