Saeed Abdolmaleki

I appreciate your support RyutaI think this is the right way for handling fixed integers on the node

Hi Ryuta,Thanks for replying to my message. The Idea ultimately led me to use SCIP, during my heuristic solution I need to get access to the fixed integer variables up to the called node. Do you ha...

Hi Riley,thank you for your response, First I tried using CPLEX, and although the cplex was unable to provide me the fixed integer variables over the parent's node, I simply used get.local_lower/up...

Additionally, there is another issue: for mid-sized instances, the callback-based Benders implementation tends to produce the same optimal solution as Gurobi's default solver. However, as the probl...

Greetings Scientist   I have been trying to write down the Dual of my Optimization Model. My model is huge it is a part of writing the Dual of my Sub-Problem. for large scale, it took me many times...

Awesome response Thanks a huge barrel of Vodka!

Greetings Riley Accordig to the action being called via Master problem, it can not be regarded as Benders Decomposition. Since the Master problem does not solve for each iteration until optimality...

Dear Riley   The Process Time for reporting is 286.59 seconds?    Thanks for your reply   V/R Saeed

Please Also note that Gurobi without Benders obtained the Incumbent as below: This bound differs from what Benders found!   9173 7319 3096575.02 57 73 3099230.55 3090773.70 0.27% 144 121s

Dear Riely   I want to take your attention to the report given by Gurobi: Could you please interpret that for me. (This is the last iteration of the report, I am dubious what is the objective funct...