> Probably this happens because your instance is not well conditioned, > so due to excessive round-off errors the presolved lp is unbounded > while the original lp is not. What does "not well conditioned" mean? What can I do about it?
> >> Also neither lpx_adv_basis nor lpx_std_basis >> seem to solve the problem from C++ API level. Could anyone please tell >> me what I am missing here? > > Could you provide the code returned by glp_simplex? I'm getting PROBLEM HAS UNBOUNDED SOLUTION glp_simplex: cannot recover undefined or non-optimal solution and glp_simplex returns 11, i.e. GLP_ENODFS (no dual feasible) Marcin _______________________________________________ Help-glpk mailing list [email protected] http://lists.gnu.org/mailman/listinfo/help-glpk
