Ali, Could you post me a couple of your instances, for which you suspect the objective to be inaccurate in the optimal solution? If so, write them in mps format, gzip, and post me. Then I could say something more definite. (Please do not cc them to the list.)
Did you make sure that the lp presolver is disabled? Note that if the instance is ill-conditioned, there may be no way to obtain solution with sufficient accuracy. Andrew Makhorin _______________________________________________ Help-glpk mailing list [email protected] http://lists.gnu.org/mailman/listinfo/help-glpk
