Algorithms – Gurobi Help Center

How optimization algorithms work & improving their performance

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 5 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

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