How optimization algorithms work & improving their performance

Speed up gurobi to solve an milp Answered
1 vote 13 comments
Branch and price example Answered
0 votes 12 comments
How to solve this MILP-based regression model faster? Answered
0 votes 11 comments
Array or List Answered
0 votes 10 comments
No optimization function Ongoing
0 votes 10 comments
Gurobi very slow at solving MIQP Answered
0 votes 10 comments
Model contains large quadratic objective coefficient range.
2 votes 9 comments
Speeding up Gurobi LP solver Ongoing
1 vote 8 comments
VarHint where MIP Start is not applicable (with pyomo) Answered
0 votes 8 comments
MIPGap and Runtime query before optimization stops Answered
0 votes 8 comments
Not that large MILP model took ages to obtain the optimal results Answered
0 votes 8 comments
L1 minimization Answered
0 votes 7 comments
Bug report: Different settings of MIPFocus result in different number of solutions Answered
0 votes 7 comments
Gurobi stopping criteria
0 votes 7 comments
Providing integer start solution drastically increases root relaxation computation time Answered
1 vote 7 comments
Distributed MIP logging & ramp-up question
3 votes 7 comments
Some questions about what I do to deal with the slow decline of gap value. Answered
0 votes 6 comments
About the calculation speed Answered
0 votes 6 comments
MIP start takes very long to process Answered
0 votes 6 comments
Early Branching in Branch-and-Cut
0 votes 6 comments
Cut loop at root node of MIP Answered
1 vote 6 comments
Separating specific cuts Answered
0 votes 6 comments
MIP start did not produce a new incumbent solution Answered
0 votes 6 comments
Optimal solution found early but long time to close gap Ongoing
0 votes 5 comments
pre-solve is buggy Ongoing
0 votes 5 comments
Do node relaxation values violate constraints? Answered
0 votes 5 comments
Numerical Issues When Adding Var Bounds Answered
0 votes 5 comments
Testing cutting planes from tableau Answered
0 votes 5 comments
Lazy constraints not working?
0 votes 5 comments
No solution found when using an objective function Answered
1 vote 5 comments