Root Node Relaxation Solution

回答済み

MINSEO LEE

2025年01月31日 19:21

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I formulated my model including addGenConstrExp(,,"FuncPieces=-2, FuncPieceError=0.3").

I need to see the LP solution of the root node. 

However, when I use the GetNodeRel method, it returns a null.

Is there other ways to obtain the LP relaxed solutions?

*** Since the solver is handling the PWL approximation, relaxing the model manually does not seem to work.

関連

• Root Node
• Callbacks

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  Ryuta Tamura

  • Gurobi Staff

  2025年02月02日 11:42 編集済み

  Hi,
  "var.X" attribute cannot be referenced directly in the callback. In your code, the return value of GetNodeRel, “x”, seems to have the values of the node solution. Please check the value of the vatiable “x".

  Thanks,
  Ryuta

  0

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