> My problem is that I don't succeed in finding the MIP relative gap at the > end of the first "optimization". The only interesting function that I've > found is : glp_ios_mip_gap(glp_tree arg) ; but I don't have a clue about > what is the tree I have to put in argument.
Glp_ios_mip_gap can be called only from the callback routine written by the user, which, in turn, is called from glp_intopt provided with a pointer to the search tree object (glp_tree). Note that the search tree exists only during the search and is destroyed on exit from glp_intopt. > I'm using glpk 4.45 through a Java environnement (JRE 1.6.0_24). I don't know details how the callback is implemented in the Java interface. In C its entry point address is passed to glp_intopt thru the glp_iocp control parameter block (2nd parameter). _______________________________________________ Help-glpk mailing list [email protected] https://lists.gnu.org/mailman/listinfo/help-glpk
