I do not know the solution with guaranteed accuracy, it would require a self-validating method such as interval arithmetic. I only suspect that the solver has numerical problems as i have inconsistent results. An error estimate on the result of the solver could help me.
On Jan 15, 2008 12:33 AM, Michael Hennebry <[EMAIL PROTECTED]> wrote: > On Mon, 14 Jan 2008, Ali Baharev wrote: > > > I faced the following problem. I repeatedly call glp_simplex on the > > same lp object (only continuous variables) after manipulating the > > objective function. The objective function value i get seems to be a > > bit inaccurate (say the third digit seems to be incorrect). As the > > computation involves several thousand iterations, probably this is due > > to the accumulation of round-off errors. I always check the returned > > value of glp_get_status and it is GLP_OPT. > > How do you know that the objective is inaccurate? > Another solver? > Mathematical analysis? > Something else? > > -- > Michael [EMAIL PROTECTED] > "Those parts of the system that you can hit with a hammer (not advised) > are called Hardware; those program instructions that you can only > curse at are called Software." > > _______________________________________________ Help-glpk mailing list [email protected] http://lists.gnu.org/mailman/listinfo/help-glpk
