How optimization algorithms work & improving their performance

Limit solutions for an LP Answered
0 votes 6 comments
Non-convex QCPQ capability compared to SCIP Answered
0 votes 1 comment
Non-optimal solutions when solving an aTSP with Gurobi Answered
0 votes 1 comment
How Gurobi solves a optimisation problem that doesn't have an objective? Answered
0 votes 3 comments
Control over the number of callbacks in MIPNODE Answered
0 votes 3 comments
Methods for solving binary LP Ongoing
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Interpretation best bound NoRel heuristic Answered
1 vote 1 comment
Relaxations executed by gurobi Answered
0 votes 1 comment
Complexity reduction makes the algorithm slower Answered
0 votes 5 comments
Why Barrier report numerical trouble encountered even the ranges are not large? Ongoing
0 votes 2 comments
Same nodes but different solution time (VRP Time Windows) Answered
1 vote 3 comments
how to count a specific number in the Var list Answered
0 votes 1 comment
Numerical trouble encountered when solving convex QCQP Answered
0 votes 1 comment
How to improve solver solution time in VRP TW Optimization Answered
1 vote 6 comments
MILP takes way too much time Answered
2 votes 2 comments
Obtaining 0-1 Integer Solutions with Linear Programming solvers Ongoing
0 votes 2 comments
Tolerances and warm-starts Awaiting user input
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Large MIP Model Stops Progressing - Many Equivalent Solutions? Answered
0 votes 3 comments
How can Gurobi be deterministic considering "Performance Variability"? Answered
0 votes 1 comment
Setting IntegralityFocus=1 accelerates solution? Answered
0 votes 1 comment
Symmetry parameter options do not cause any changes Awaiting user input
0 votes 1 comment
Disable Crossover for MILP that is reduced to LP in Presolve Answered
0 votes 7 comments
Crossover impact on duals in a LP Awaiting user input
0 votes 3 comments
Problems very similar to each other requiring much much different amount of time to be solved Answered
0 votes 1 comment
Order of variables & constraints vs. performance Answered
2 votes 3 comments
Solution to unbounded problems Answered
0 votes 1 comment
In column generation, including negative reduced cost columns does not improve the LP. Answered
0 votes 3 comments