Giorgos Tsoumos
- 合計アクティビティ 25
- 前回のアクティビティ
- メンバー登録日
- フォロー 1ユーザー
- フォロワー 0ユーザー
- 投票 0
- サブスクリプション 8
アクティビティの概要
Giorgos Tsoumosさんの最近のアクティビティ-
Giorgos Tsoumosさんが投稿を作成しました:
Model not solving all instances
回答済みHello, I have a problem with my model, while it solves some instances of solomons 56 PDPTW like lc101,lc105 etc. some others like lc102,lc103 etc is incapable of solving it and it runs for hours w...
-
Giorgos Tsoumosさんが投稿を作成しました:
Error 10003 Invalid arguments in callback function
ユーザーの入力を待っています。Hello, I am trying to get the values of the GRBVariables inside the callback function of a user-defined class inherited from GRBCallback. However when i run getSolution() or setSolution the error ...
-
Giorgos Tsoumosさんが投稿を作成しました:
Dual Simplex Stucks when Barrier solves the model in C++
回答済みHello, I have formulate the CVRPTW problem which is solved by the barrier algorithm but when the dual simplex method crossover comes to optimize the solution it stucks forever showing me logs... A...
-
Giorgos Tsoumosさんがコメントを作成しました:
Very well thank you for your time!
-
Giorgos Tsoumosさんがコメントを作成しました:
Good morning, I have changed the name of variables and found the error in constraints however now the model while computing the solution "stucks" here as the screenshot shows and i don't know why? ...
-
Giorgos Tsoumosさんがコメントを作成しました:
\ Model (null)_copy\ LP format - for model browsing. Use MPS format to capture full model detail.Minimize Subject To R0: x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x + x ...
-
Giorgos Tsoumosさんがコメントを作成しました:
Hello, I have added the variables arrive and depart as GRBVars and also i have i have looked at the example Technician Routing Problem. I've also run the formulation with only 3 constraints but ...
-
Giorgos Tsoumosさんがコメントを作成しました:
Do i have to add them as Gurobi variables? I am asking because i have to add the constraint 8 which involves xijk which is a gurobi variable but apart from depart[i] and arrival[i] are not. Yes ...
-
Giorgos Tsoumosさんがコメントを作成しました:
Hello, I have written the model in a file with extension .lp and i've tried to reduce the problem's complexity to a smaller one but i still cannot find the infeasibility reason... depart[i] and ar...
-
Giorgos Tsoumosさんがコメントを作成しました:
Hello, Well, the debugging process terminates but the model is infeasible and i dont know why. I guess it's something to do with the constraints but i cannot find it. I have added the constraints a...