Leandro Coelho

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Latest activity by Leandro Coelho
  • Leandro Coelho created a post,

    prune nodes in B&B


    Hello,   I have a minimization MIP for which I can infer lower bounds as time goes by.  Sometimes, my lower bound is better than the solution of a given node. Is there a way to prune the node? I co...

  • Leandro Coelho created a post,

    root node with integer variables, then relax some for branching phase


    I have some very large MIPs to solve. I can relax integrality conditions on some variables but realized that doing so makes the root node solve time explode. I guess Gurobi applied cuts and strengt...