Greg Glockner
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Latest activity by Greg Glockner-
Greg Glockner commented,
Can you edit your post with the tail of the Gurobi log and with the definition of clustering_bs() and clustering_sc().
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Greg Glockner commented,
Try creating the index as a generator expression: X = m.addVars(((s, ss) for s in S for ss in S if s != ss), vtype=GRB.BINARY)
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Greg Glockner commented,
LP file format is not standardized. Try moving all your variable expressions to the left hand side.
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Greg Glockner commented,
Can you post the first and last ~30 lines of the logs from both versions?
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Greg Glockner created an article,
What is the Export Control Classification Number (ECCN) for Gurobi?
Gurobi software is designated as EAR99, according to export laws of the United States. Any changes to this classification will be posted on this page.
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Greg Glockner commented,
It could be anything. Try reading the suggestions in the MIP models section of the parameter guidelines.
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Greg Glockner commented,
Unfortunately, what you want is not how the API works. Consider this small Python example: from gurobipy import *m = Model()c = [1, 2]x = m.addVars(2, name='x')m.addConstr(c[0]*x[0] + c[1]*x[1] <= ...
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Greg Glockner commented,
To disable Gurobi cut generation - including Gomory - set Cuts=0 To disable Gurobi heuristics, set Heuristics=0 To disable presolve, set Presolve=0. However, you may be better off setting PreCrush...
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Greg Glockner commented,
Rounding can be dangerous: it could make your model infeasible. It was an intentional decision not to provide a rounding feature.
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Greg Glockner commented,
Official comment This is covered in the knowledge base article Why does Gurobi sometimes return values for integer variables that are not integers?