Enum to control presolve modes at the beginning of the solution process.
public enum PresolveMode
Presolve is applied.
Presolve applied, but a problem will not be declared infeasible if primal infeasibilities are detected. The problem will be solved by the LP optimization algorithm, returning an infeasible solution, which can sometimes be helpful.
Presolve is not applied.
Presolve is applied, and bounds detected to be redundant are always removed.
Presolve applied, but redundant bounds are not removed. This can sometimes increase the efficiency of the barrier algorithm.