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Implement lazy callbacks & two-phase gap

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This commit is contained in:
Alinson S. Xavier
2020-09-25 06:02:07 -05:00
parent 86e7b1981f
commit a221740ac5
10 changed files with 288 additions and 75 deletions
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4
miplearn/solvers/tests/__init__.py
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@@ -7,13 +7,13 @@ from miplearn.problems.knapsack import KnapsackInstance, GurobiKnapsackInstance
def _get_instance(solver):
if issubclass(solver, BasePyomoSolver):
if issubclass(solver, BasePyomoSolver) or isinstance(solver, BasePyomoSolver):
return KnapsackInstance(
weights=[23., 26., 20., 18.],
prices=[505., 352., 458., 220.],
capacity=67.,
)
if issubclass(solver, GurobiSolver):
if issubclass(solver, GurobiSolver) or isinstance(solver, GurobiSolver):
return GurobiKnapsackInstance(
weights=[23., 26., 20., 18.],
prices=[505., 352., 458., 220.],