Paul Maximilian Röhrig

Gurobi-versary
First Question
Conversationalist
  • Total activity 10
  • Last activity
  • Member since
  • Following 0 users
  • Followed by 0 users
  • Votes 1
  • Subscriptions 2

Activity overview

Latest activity by Paul Maximilian Röhrig
  • Paul Maximilian Röhrig commented,

    I have just solved the Closed model and then handed over the Primale and Dual solution. But still nothing happens   model = struct('A', A, 'lb', lb, 'ub', ub, 'obj', obj, 'rhs', rhs, 'vtype', vtype...

  • Paul Maximilian Röhrig commented,

    Good afternoon,Do I understand correctly that PStart and DStart must always be specified together ? The problem in my implementation is that I split the problem and solve it next. Then I reassemble...

  • Paul Maximilian Röhrig commented,

    Hello Mr. Towle,It is my mistake that the model is pure LP and has as vtype only C. But I don't understand why my start value is not shown in the display. So it looks like it will be ignored comple...

  • Paul Maximilian Röhrig commented,

    The problem is a MILP. I just ran the model. I saved the x of the results. And then I started the same model only this time with 'start' = res.x. Which should mean that this model already has the p...

  • Paul Maximilian Röhrig created a post,

    Issues with Warm Start Matlab

    Answered

    Good afternoon,I would like to start my model with Warm Start. According to the description you have to add the point start to the Struct model with the start solution. In the manual you can read i...

  • Paul Maximilian Röhrig commented,

    Good day Jaromił,thank you for your feedback on my question.I wanted to use the Barrier Method for a MILP, could this lead to problems ? Have you ever had any experience using Pareto Optimal Cuts f...

  • Paul Maximilian Röhrig created a post,

    Is it possible to get the value of the Interior Solution ?

    Ongoing

    Hello,I would speed up my model which works with Bender's decomposition. For this I will use the Pareot Optimal Cuts. These require a so-called Core Point, Analytic Center or Interior Solution (whi...