| -tao_bnk_max_cg_its | - maximum number of bounded conjugate-gradient iterations taken in each Newton loop | |
| -tao_bnk_init_type | - trust radius initialization method ("constant", "direction", "interpolation") | |
| -tao_bnk_update_type | - trust radius update method ("step", "direction", "interpolation") | |
| -tao_bnk_as_type | - active-set estimation method ("none", "bertsekas") |