Amirhossein Abbaszadeh

  • Gurobi-versary
  • Curious
  • First Comment
  • Total activity 12
  • Last activity
  • Member since
  • Following 0 users
  • Followed by 0 users
  • Votes 0
  • Subscriptions 5

Posts

Recent activity by Amirhossein Abbaszadeh Recent activity Votes
  • Wrong Upper Bound

    Answered

    Hi, According to the MIP logging I've attached, Gurobi explored 515 nodes when solving the problem. The last node is 514, and the best bound at this node is 1616.99. However, Gurobi stopped at this...

  • Applying L-shaped method using callback in C++

    Awaiting user input

    Hello,  I’m trying to apply the L-shaped method (Benders Decomposition) to solve a stochastic model using callback function in C++.  I understand that whenever Gurobi found a MIP solution (that is ...

  • Counting lazy constraints

    Answered

    Hi all,  I'm trying to apply Benders Decomposition to a problem using callback function in C++.I understand that whenever Gurobi found a MIP solution (that is where == GRB_CB_MIPSOL), I must get th...

  • callback() method in c++

    Answered

    Hi, I'm trying to use Callback in C++. I know that I must create a subclass of the Gurobi callback class and then implement a callback() method. According to the callback_c++.cpp example, it seems ...

  • One Environment VS Multiple Environments

    Answered

    Hello,  I have a general question! Suppose that we want to solve 100 MIP models. To build these models, two options are available: Building the models using one environment  Building the models us...