Algorithms
New postHow optimization algorithms work & improving their performance
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Some questions about what I do to deal with the slow decline of gap value. Answered0 votes 6 comments

presolve is buggy Ongoing0 votes 2 comments

How do I specify the algorithm used to solve my model in pyomo? Answered1 vote 1 comment

BranchandBound integer/float Answered0 votes 1 comment

Crossover Takes Long Answered0 votes 1 comment

Bug with "presolve" Answered0 votes 1 comment

Stop callbacks Answered0 votes 1 comment

Unable to find suboptimal solution Answered1 vote 3 comments

Bug report: Different settings of MIPFocus result in different number of solutions Ongoing0 votes 4 comments

MIPGap and Runtime query before optimization stops Answered0 votes 8 comments

AMPL GURUBI bestbound Answered0 votes 3 comments

Solver is Frozen Answered0 votes 1 comment

About the MIPgap Answered0 votes 3 comments

Barrier algorithm and Unboundedness detection0 votes 0 comments

Numeric stability with SOC Answered0 votes 2 comments

Presolve information Answered0 votes 1 comment

About the Cholesky decomposition in the barrier method Answered0 votes 3 comments

Beaten by a naive method solving MILP Ongoing0 votes 4 comments

About the memory usage Awaiting user input0 votes 1 comment

Criteria for Barrier method early termination Answered0 votes 3 comments

How can Benders decomposition be faster then Gurobi? Answered0 votes 2 comments

Optimization time: local machine vs computer cluster Answered1 vote 1 comment

Branching variable(s) for a bilinear problem Answered0 votes 1 comment

Worse performance for smaller problem Answered1 vote 4 comments

How do can I stop and get the result when the MIP gap is smaller than 5%? Answered0 votes 1 comment

Unable to get solution even running for 10 days on HPC Awaiting user input0 votes 1 comment

Quadratic constraint accuracy Answered0 votes 1 comment

Do node relaxation values violate constraints? Answered0 votes 4 comments

About the calculation speed Answered0 votes 6 comments