DUALSTRATEGY

Bit

Meaning

0 

Switch to primal when re-optimization goes dual infeasible and numerically unstable.

1 

When dual intend to switch to primal, stop the solve instead of switching to primal.

2 

Use more aggressive cut-off in MIP search.

3 

Use dual simplex to remove cost perturbations.

4 

Enable more aggressive dual pivoting strategy.

5 

Keep using dual simplex even when it's numerically unstable.