Iason Liagkas

I want to add some context. I am applying the Benders Decomposition algorithm. And I have a Master problem and a Subproblem. It happens depending on my starting point (initial feasible solution) in...

Thanks Riley, I appreciate your input.

Thank you so much Riley

Thanks Mario, this example works. Kind regardsIason

Mario will the execution of the code be slower with my method? Do you have any handy example of how to use SPmodel.chgCoeff()? Kind regardsIason

Hello Mario, what worked for me is to make a function that forms my LP model, and each time I want to update a parameter I call the function so the problem is formed again. My function includes the...

Thank you Eli, that was the problem, enjoy your holidays! Kind regardsIason

Hi Riley I found out my bug. Instead of writing SPmodel.optimize() I should write a subproblem.optimize() since the SPmodel is lying inside the function, while the subproblem is the variable that t...

Thanks Silke. 

Hello Silke the code that sets the objective is: obj=gp.quicksum(uirs[i,r,s] for r,s in drs.keys() for i in ["I","E"])  - Sc*C*F*(Riinit-Rirs.sum("I",'*','*')/len(Rirs.select("I",'*','*')))\    -25...