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Temporarily remove native solver callbacks; add iteration_cb

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Alinson S. Xavier
2020-09-23 17:30:39 -05:00
parent e731f46b72
commit 425ea2b7cc
10 changed files with 201 additions and 189 deletions
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3
miplearn/problems/knapsack.py
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@@ -269,7 +269,8 @@ class GurobiKnapsackInstance(KnapsackInstance):
n = len(self.weights)
x = model.addVars(n, vtype=GRB.BINARY, name="x")
model.addConstr(gp.quicksum(x[i] * self.weights[i]
for i in range(n)) <= self.capacity)
for i in range(n)) <= self.capacity,
"eq_capacity")
model.setObjective(gp.quicksum(x[i] * self.prices[i]
for i in range(n)), GRB.MAXIMIZE)
return model