Mike Lang
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Mike Langによる最近のアクティビティへの投票-
Callback on MIPNODE is late or slow
回答済みDear community, I am working on solving a large MIP with user callbacks. In one of the callbacks, I query if where == GRB.Callback.MIPNODE: and then add heuristic solutions via model.cbSetSolution...
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Overhead of adding lazy constraints via callback in Python
回答済みDear all, I am adding cuts to a MILP via lazy constraints with model.cbLazy() in a callback routine at where == GRB.Callback.MIPSOL I am looking at the time it takes to add the lazy constraints ...
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MIP start takes very long to process
回答済みDear community, I have a large MIP (solve with a Benders-Decomp / callbacks) for which I know several feasible solutions, the best of which I provide to the model as a MIP start. the MIP start inc...
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Reducing MILP solution time
回答済みDear community, I am working with a MILP with a significant number of (binary) decision variables and where Gurobi takes very long to reduce the MipGap and struggles to get to an optimal solution....