Algorithms

Non-optimal solutions when solving an aTSP with Gurobi Answered

• Constantin Wildt
• August 11, 2022 10:31

0 votes 1 comment

Relaxations executed by gurobi Answered

• Ahmed Al-Shafei
• July 22, 2022 02:16

0 votes 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

Interpretation best bound NoRel heuristic Answered

• Anne-Kett Bassing
• July 14, 2022 11:07
• Edited

1 vote 1 comment

Control over the number of callbacks in MIPNODE Answered

• francois lamothe
• July 13, 2022 16:24

0 votes 3 comments

Numerical trouble encountered when solving convex QCQP Answered

• Braun Reiner
• July 12, 2022 08:59

0 votes 1 comment

How to improve solver solution time in VRP TW Optimization Answered

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

1 vote 6 comments

MILP takes way too much time Answered

• Marco Sp
• July 08, 2022 06:53

2 votes 2 comments

Complexity reduction makes the algorithm slower Answered

• Florian Kaltwasser
• July 06, 2022 08:17

0 votes 5 comments

Log continually print 'Processing user MIP start: 0 nodes explored in subMIP, total elapsed time xxxs' when I set an initial value for all variables of MIP model Answered

• Zhanwei Liu
• June 30, 2022 14:04

0 votes 1 comment

Large MIP Model Stops Progressing - Many Equivalent Solutions? Answered

• RALPH ASHER
• June 23, 2022 16:37
• Edited

0 votes 3 comments

How can Gurobi be deterministic considering "Performance Variability"? Answered

• Ryosuke Umeda
• June 21, 2022 14:15

0 votes 1 comment

Setting IntegralityFocus=1 accelerates solution? Answered

• GurobiUser
• June 18, 2022 17:25

0 votes 1 comment

How Gurobi solves a optimisation problem that doesn't have an objective? Answered

• Hongyu Zhang
• June 14, 2022 11:42

0 votes 3 comments

Disable Crossover for MILP that is reduced to LP in Presolve Answered

• Jacob Mannhardt
• June 09, 2022 07:37

0 votes 7 comments

Problems very similar to each other requiring much much different amount of time to be solved Answered

• Daniele Patria
• June 08, 2022 12:54

0 votes 1 comment

Solution to unbounded problems Answered

• ce jekl
• June 03, 2022 15:02
• Edited

0 votes 1 comment

Stop the program while running Answered

• Susana Carmona
• May 30, 2022 08:31

0 votes 1 comment

In column generation, including negative reduced cost columns does not improve the LP. Answered

• yunzhuang shen
• May 29, 2022 07:58
• Edited

0 votes 3 comments

Quadratic constraints contain large coefficients on linear part. Answered

• wangyu hu
• May 27, 2022 02:47
• Edited

0 votes 1 comment

Optimizing away dummy binary variables with values determined by other variables? Answered

• Tobias Völk
• May 26, 2022 11:50

0 votes 1 comment

Unable to find optimal solution for some instances Answered

• Yaroslav Pylyavskyy
• May 17, 2022 13:59

0 votes 8 comments

Lagrangian Relaxation Answered

• Asefeh Hassani Goodarzi
• May 11, 2022 22:27

0 votes 4 comments

What algorithm is used for my optimization? Answered

• Elina Joksch
• May 02, 2022 12:02

0 votes 1 comment

How was upper bound generated for non-linear, non-convex maximization optimization model? Answered

• Yifei Sun
• April 26, 2022 16:20
• Edited

0 votes 3 comments

IndexError: list index out of range Answered

• Geoffrey James Kameni Tchokode
• April 22, 2022 08:13

0 votes 1 comment

Change solution strategy to standard (ImproveStartGap,ImproveStartNodes,ImproveStartTime) Answered

• Ilya Tyuryukanov
• April 20, 2022 21:28

0 votes 2 comments

Skipping non-existing decision variables in for loop Answered

• Alara Tizer
• April 10, 2022 20:28

0 votes 1 comment

GurobiError: Invalid argument to LinExpr multiplication Answered

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

0 votes 6 comments