Skip to main content

warm start LP solver in Gurobi

Answered

Comments

2 comments

  • Matthias Miltenberger
    Gurobi Staff Gurobi Staff

    Hi Yunzhuang,

    When supplying a warm start solution, Gurobi will use the simplex method to solve the LP and only the barrier method is able to utilize more than one thread. The barrier method cannot be warm started, though.

    Quite possibly, the observed performance difference is not directly due to the 4 threads but rather due to a different algorithm - in this case, the barrier - being used.

    Please refer to these sections in our documentation for further information on how to interpret the LP logs: 

    I hope that answers your questions.

    Cheers,
    Matthias

    0
  • yunzhuang shen
    Gurobi-versary
    First Question
    First Comment

     

    Thanks, Matthias. The answer makes sense to me.

    Regards,

    Yunzhuang

    0

Please sign in to leave a comment.

Powered by Zendesk