Abdulkerim Benli

Gurobi-versary
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Activity overview

Latest activity by Abdulkerim Benli

  • Abdulkerim Benli created a post,

    Barrier algorithm and Unboundedness detection

    1. Community
    2. Algorithms

    Hello, I am implementing Benders Decomposition via callbacks. Subproblem can only be solved by Barrier algorithm (simplex and dual simplex are incompetent). When there is a solution for the subprob...

    • Abdulkerim Benli
    • 1 follower
    • 0 comments
    • 0 votes

  • Abdulkerim Benli commented,

    1. Community
    2. Modeling
    3. Exploring nodes is getting slower

    Thank you for the response. Now, it makes sense especially with the expensive heuristics part. I will also try to scale down the terms in the objective.

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    • Abdulkerim Benli
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  • Abdulkerim Benli commented,

    1. Community
    2. Modeling
    3. Exploring nodes is getting slower

    Thank you for quick response. NoRelHeurTime is working fantastic and it saved me. But, I just wanted to see how the BB will handle only with default Heuristics (0.05) and was curious about why node...

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    • Abdulkerim Benli
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  • Abdulkerim Benli created a post,

    Exploring nodes is getting slower

    Answered
    1. Community
    2. Modeling

    Hello, As solving a large MIP instance, exploring the BB tree is getting slower in a certain depth. There is a screenshot below that clearly shows after some point even exploring a new node takes p...

    • Abdulkerim Benli
    • 2 followers
    • 4 comments
    • 0 votes