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Model.cbUseSolution()
cbUseSolution ( )
Once you have imported solution values using
cbSetSolution,
you can optionally call cbUseSolution
to immediately use
these values to try to compute a heuristic solution.
Return value:
The objective value for the solution obtained from your solution values (or GRB.INFINITY if no improved solution is found).
Example usage:
def mycallback(model, where): if where == GRB.Callback.MIPNODE: model.cbSetSolution(vars, newsolution) objval = model.cbUseSolution() model.optimize(mycallback)