How optimization algorithms work & improving their performance

Optimal solution found early but long time to close gap Answered
0 votes 7 comments
L1 minimization Answered
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Bug report: Different settings of MIPFocus result in different number of solutions Answered
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Gurobi stopping criteria
1 vote 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
Lack of progress in Best Bound past a certain point and no termination for MINLP Answered
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LP relaxation is not solved to optimality Awaiting user input
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Significantly different results of scaled and unscaled models Answered
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How to speed up MILP model to find the solution? Answered
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Suboptimal termination and unbounded or infeasible solution Answered
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What do the following things mean in Gurobi output? Answered
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Lower memory usage for MILP problem Answered
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How to improve solver solution time in VRP TW Optimization Answered
1 vote 6 comments
Difference between nested quicksum and several quicksums Ongoing
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GurobiError: Invalid argument to LinExpr multiplication Answered
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Interpreting the log file for the branch-and-cut tree search Answered
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How does NodeMethod work? Answered
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Adding a few variables and constraints makes the model nearly unsolvable Answered
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pre-solve is buggy Answered
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Some questions about what I do to deal with the slow decline of gap value. Answered
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About the calculation speed Answered
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MIP start takes very long to process Answered
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Early Branching in Branch-and-Cut
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Cut loop at root node of MIP Answered
1 vote 6 comments
Separating specific cuts Answered
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MIP start did not produce a new incumbent solution Answered
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Column Generation Answered
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Does more threads mean quicker? Awaiting user input
0 votes 5 comments
Solution Method and Runtime Answered
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