Marius Roland

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Activity overview

Latest activity by Marius Roland

  • Marius Roland commented,

    Hello Riley,  Thanks a lot for your comment.  Unfortunately setting  NodeLimit=1 and then re-optimizing with NodeLimit=float("infinity") does not work for me.  Marius 

    View comment Marius Roland 0 votes

  • Marius Roland commented,

    This is the callback function I use:  def cb_covering(model, where):    if where == GRB.Callback.MIPNODE:        node_count = model.cbGet(GRB.Callback.MIPNODE_NODCNT)        condition = (node_count...

    View comment Marius Roland 0 votes

  • Marius Roland commented,

    Hello David,  Thanks for the quick reply :)! I tried with PreCrush set to the value 1 and it does not change anything. I still have the same behavior as in the first log I added.  In addition, you ...

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  • Marius Roland created a post,

    Cuts Parameter and B&B Root Node User Cuts

    Answered

    Hello,  I am currently testing new Valid Inequalities (VIs) with Gurobi. I am convinced that these inequalities strongly cut of the LP relaxation.  To test their efficacy I am adding the cuts at th...

    Marius Roland 5 followers 6 comments 0 votes