> It seems to me that you would like to re-optimize your problem. Is > your problem dual feasible at the second call of lpx_simplex? If so, > you should use dual simplex. Just call lpx_set_int_parm(lp, > LPX_K_DUAL, 1); before lpx_simplex.
Cedric adds new columns, not rows, so the basis must remain primal feasible, while the dual simplex assumes dual feasibility. _______________________________________________ Help-glpk mailing list [email protected] http://lists.gnu.org/mailman/listinfo/help-glpk
