Suggestions for interpreting solution quality or obtaining a better solution.
What to do after a solver finishes.
How to proceed when the solver fails.
When the Solver Might Have Succeeded
How to proceed when the solver is unsure it produced a good answer.
What to do if the solver takes a long time to finish.
How to check that the solution is reliable.
Explains why solvers might not find the smallest minimum.
Tuning Integer Linear Programming
Steps for improving solutions or solution time.
Investigate Linear Infeasibilities
Find out which linear constraints cause a problem to be infeasible.