> Can anyone tell me what the problem is ? Look upto the end > of the mail. Please..... say what could be the problem with gcc version > 3.0.4.
It is difficult to say what exactly happens. The simplex falls into infinite loop, because a termination criterion is not satisfied (this, unfortunately, may sometimes happen, because the implementation is still not robust). In the latter case it looks like some differences in the object code and inexact arithmetic caused the simplex to use other path to the optimum, or basic solution components were computed more accurately, or something else happened, due to which the criterion was satisfied. In any case it was just a lucky chance that the search was finished. Try not to use scaling (--noscale); this sometimes helps to prevent cycling once the optimum has been reached. Andrew Makhorin _______________________________________________ Help-glpk mailing list [email protected] http://lists.gnu.org/mailman/listinfo/help-glpk
