Algorithms

About the calculation speed Answered

• Yanbo Fan
• June 30, 2021 10:20

0 votes 7 comments

MIP start takes very long to process Answered

• Mike Lang
• January 25, 2021 08:05
• Edited

0 votes 7 comments

About Farkas Dual in Benders Decomposition Answered

• Fan YANG
• October 17, 2019 10:36
• Edited

0 votes 7 comments

Early Branching in Branch-and-Cut

• Matheus Jun Ota
• October 10, 2019 19:03

0 votes 7 comments

Cut loop at root node of MIP Answered

• Fan YANG
• August 23, 2019 15:23
• Edited

1 vote 7 comments

Separating specific cuts Answered

• A.Omidi
• August 09, 2019 22:47

0 votes 7 comments

MIP start did not produce a new incumbent solution Answered

• Taner Cokyasar
• June 20, 2019 22:26

0 votes 7 comments

Column Generation Answered

• Taylor Leonard
• April 05, 2019 22:12

0 votes 7 comments

Long Time Spend in Model Construction Answered

• CAN YIN
• February 11, 2025 10:48

0 votes 6 comments

Why do the dual cost obtained by .pi seem incorrect, when the upper and lower bounds of variables are defined using "model.addVar"? Answered

• Yiran Wang
• January 08, 2025 09:18

0 votes 6 comments

Gurobi cannot find the solution after one day Answered

• Zhongjin Lu
• September 11, 2024 22:00

0 votes 6 comments

MIP stuck in branch-and-cut in some situations Answered

• Sibo Li
• July 09, 2024 03:51
• Edited

0 votes 6 comments

Lack of progress in Best Bound past a certain point and no termination for MINLP Answered

• Benoit Chachuat
• March 14, 2024 14:01

0 votes 6 comments

LP relaxation is not solved to optimality Awaiting user input

• haonan 钟
• February 22, 2024 16:26

0 votes 6 comments

VRPTW BIGM problem Answered

• 天 景
• January 02, 2024 06:20

0 votes 6 comments

Significantly different results of scaled and unscaled models Answered

• Jan Wiegner
• October 23, 2023 12:17
• Edited

0 votes 6 comments

How to speed up MILP model to find the solution? Answered

• Suyue Xu
• June 05, 2023 15:20

0 votes 6 comments

Suboptimal termination and unbounded or infeasible solution Answered

• Jacob Mannhardt
• March 21, 2023 14:57

0 votes 6 comments

What do the following things mean in Gurobi output? Answered

• anonymous123456788
• March 15, 2023 23:25

0 votes 6 comments

Lower memory usage for MILP problem Answered

• Meijun Chen
• February 02, 2023 21:55
• Edited

0 votes 6 comments

How to improve solver solution time in VRP TW Optimization Answered

• Rihot Gusron
• July 08, 2022 10:14
• Edited

1 vote 6 comments

Difference between nested quicksum and several quicksums Ongoing

• Trista Cheng
• April 27, 2022 10:42
• Edited

0 votes 6 comments

GurobiError: Invalid argument to LinExpr multiplication Answered

• Geoffrey James Kameni Tchokode
• April 06, 2022 11:03

0 votes 6 comments

column generation dual variables Answered

• Menglei Jia
• February 21, 2022 07:24
• Edited

0 votes 6 comments

Interpreting the log file for the branch-and-cut tree search Answered

• Marcus Garvie
• January 31, 2022 17:12

0 votes 6 comments

Lazy constraint in MIPNODE and MIPSOL Awaiting user input

• ce jekl
• December 19, 2021 09:27
• Edited

1 vote 6 comments

NoRel and setting time limits Answered

• Permanently deleted user
• December 16, 2021 23:07

0 votes 6 comments

How can Benders decomposition be faster then Gurobi? Answered

• Kai Zhang
• July 17, 2021 07:37

1 vote 6 comments

Do node relaxation values violate constraints? Answered

• Nitin Srinath
• June 22, 2021 04:52

0 votes 6 comments

Numerical Issues When Adding Var Bounds Answered

• Lukas Winkel
• November 05, 2020 13:06

0 votes 6 comments