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Implement load; update fit

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This commit is contained in:
Alinson S. Xavier
2022-02-25 08:26:33 -06:00
parent 522f3a7e18
commit 04dd3ad5d5
4 changed files with 54 additions and 19 deletions
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14
miplearn/solvers/pyomo/base.py
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@@ -322,8 +322,14 @@ class BasePyomoSolver(InternalSolver):
# Bounds
lb, ub = v.bounds
upper_bounds.append(float(ub))
lower_bounds.append(float(lb))
if ub is not None:
upper_bounds.append(float(ub))
else:
upper_bounds.append(float("inf"))
if lb is not None:
lower_bounds.append(float(lb))
else:
lower_bounds.append(-float("inf"))
# Objective coefficient
if v.name in self._obj:
@@ -391,7 +397,9 @@ class BasePyomoSolver(InternalSolver):
) -> None:
if model is None:
model = instance.to_model()
assert isinstance(model, pe.ConcreteModel)
assert isinstance(
model, pe.ConcreteModel
), f"expected pe.ConcreteModel; found {model.__class__} instead"
self.instance = instance
self.model = model
self.model.extra_constraints = ConstraintList()