Root Node Relaxation Solution

Answered

MINSEO LEE

January 31, 2025 19:21

• 

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.

Related to

• Root Node
• Callbacks

0

• 

  Ryuta Tamura

  • Gurobi Staff

  February 02, 2025 11:42 Edited

  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

Please sign in to leave a comment.