Algorithms – Gurobi Help Center

How optimization algorithms work & improving their performance

MIP start is the optimal solution and yet I receive "MIP start did not produce a new incumbent solution"
Monir Sabbaghtorkan April 30, 2020 19:37

3 votes 5 comments
Distributed MIP logging & ramp-up question
Simon Felix December 06, 2019 15:08

3 votes 8 comments
Could different hardware give different results? Answered
D October 01, 2023 04:29

2 votes 1 comment
MILP takes way too much time Answered
Marco Sp July 08, 2022 06:53

2 votes 2 comments
Model contains large quadratic objective coefficient range.
Soufyan Zayou January 23, 2020 10:59

2 votes 10 comments
Tolerance and constraint parameters Answered
Soufyan Zayou January 12, 2020 12:31

2 votes 4 comments
What solution wll GUROBI return when solving an unbounded MILP?
Yingxiao Ye January 10, 2020 12:41

2 votes 1 comment
Order of variables & constraints vs. performance Answered
Joost Berkhout July 08, 2019 13:39

2 votes 4 comments
Theory about the algorithms Answered
Luca Vitale April 17, 2019 12:45

2 votes 3 comments
Ignored lazy constraint leads to wrong solution cont. Ongoing
Florian Linß February 07, 2025 12:17 Edited

1 vote 4 comments
The model seems to ignore the added constraints Awaiting user input
Daniele Patria September 16, 2024 10:30

1 vote 1 comment
MIQP Model taking forever to compute Answered
Gaurav Malik July 29, 2024 12:36 Edited

1 vote 3 comments
Optimizing partial warm start mip solution Ongoing
Ramin Fakhimi July 23, 2024 14:37

1 vote 5 comments
ValueError: Mismatching inner dimensions Answered
Honglin An July 15, 2024 13:33

1 vote 2 comments
Problems adding columns "Only linear constraints allowed" Answered
Carl Baier June 19, 2024 09:38 Edited

1 vote 88 comments
What is "work" measuring? Answered
Bill Caraway January 22, 2024 18:58

1 vote 1 comment
Slow MIP Solving, how to speed up? Answered
Nima December 21, 2023 13:38

1 vote 2 comments
Problem regarding the Presolve method Awaiting user input
Marcel Schwab October 19, 2023 16:25

1 vote 1 comment
BestBd not updating in a MIQCP problem Answered
Haoge Chang September 18, 2023 00:27 Edited

1 vote 7 comments
How good is Gurobi for solving large linear systems of equations? Answered
Victor Hugo Nascimento July 21, 2023 06:00

1 vote 1 comment
Vehicle Routing Problem with Time Windows with Gurobi and Python Answered
Mads Hoffmann May 18, 2023 18:23

1 vote 7 comments
Gurobi gets stuck Ongoing
Carlos Rodriguez April 26, 2023 08:02

1 vote 9 comments
Convex combination of constraints that makes the problem infeasible Answered
Xuan Lin February 01, 2023 09:28 Edited

1 vote 7 comments
Does Gurobi take advantage of the problem structure? Answered
Hussein Sharadga January 07, 2023 22:13 Edited

1 vote 3 comments
Gurobi Stuck After Solving Problem Ongoing
Konstantin Preußer January 03, 2023 07:16

1 vote 2 comments
Computing dual for QCP in Gurobi Python Answered
Anjula Mary Antonis October 07, 2022 14:40

1 vote 3 comments
How does MIPFocus really work? Answered
CITLALI OLVERA September 01, 2022 00:18

1 vote 1 comment
MILP stops with OPTIMAL status but a suboptimal solution Awaiting user input
Yangyang Fu August 16, 2022 20:05 Edited

1 vote 1 comment
how to count a specific number in the Var list Answered
yikun wang July 21, 2022 06:21

1 vote 1 comment
Same nodes but different solution time (VRP Time Windows) Answered
Rihot Gusron July 20, 2022 08:09 Edited

1 vote 3 comments

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