Algorithms

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

Symmetry parameter options do not cause any changes Awaiting user input

• Iria Rodríguez Acevedo
• June 13, 2022 12:10

0 votes 1 comment

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

• Jacob Mannhardt
• June 09, 2022 07:37

0 votes 7 comments

Crossover impact on duals in a LP Awaiting user input

• Elena Raycheva
• June 09, 2022 11:37

0 votes 3 comments

Different best bounds for different python scripts that run precisely the same model for the same problem Ongoing

• Yaroslav Pylyavskyy
• June 09, 2022 10:06

0 votes 4 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

Comparing suboptimal solutions for different scenarios and defending the use of Gurobi as a solver in an academic setting, Awaiting user input

• Garrett Eoghan
• May 30, 2022 04:51

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

Stop the program while running Answered

• Susana Carmona
• May 30, 2022 08:31

0 votes 1 comment

How to fix the root relaxation objective value so i can find the optimale solution. Awaiting user input

• Bachir Ahmed
• May 27, 2022 07:43

0 votes 2 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

Inconsistent performance Awaiting user input

• Elisabeth
• May 27, 2022 21:41

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

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

• Ilya Tyuryukanov
• April 20, 2022 21:28

0 votes 2 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

GurobiError: Invalid argument to LinExpr multiplication Answered

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

0 votes 6 comments

Skipping non-existing decision variables in for loop Answered

• Alara Tizer
• April 10, 2022 20:28

0 votes 1 comment

Having 2 implemented Callback methods Answered

• MG
• April 05, 2022 08:47
• Edited

0 votes 3 comments

Issue with callback best objective and heuristic solution (versions 9.1.2 and 9.0.0) Awaiting user input

• Seyedkianoush Mousavichashmi
• March 29, 2022 00:46
• Edited

0 votes 1 comment

long time after root relaxation before branch and bound Answered

• ce jekl
• March 18, 2022 15:51
• Edited

0 votes 3 comments

dynamic search

• Geoffrey James Kameni Tchokode
• March 22, 2022 08:39

0 votes 0 comments

For the case of non convex QCP, How can I set the initial solution? Answered

• Makine Shima
• March 18, 2022 07:33
• Edited

0 votes 1 comment

TypeError: 'gurobipy.LinExpr' object is not iterable Answered

• Geoffrey James Kameni Tchokode
• March 17, 2022 18:10

0 votes 2 comments

How can I create a multidict with data from excel file? Answered

• Susana Carmona
• March 14, 2022 16:19
• Edited

0 votes 1 comment