> I #8217;m experimenting with the integer programming > capabilities of GLPK (Version 4.27).
> The function #8220;lpx_intopt #8221; has a parameter that allows for > #8220;all cuts #8221; to be used, which include cover, clique, gomory > and mixed-integer-rounding cuts. But lpx_intopt does not use the > integer optimization control parameter structure (iocp). And that > structure has the address of a callback function. > To set parameters for lpx_intopt, there is the lpx_set_[int|real]_parm > function, but there does not seem to be a way to set > the callback function. > The function glp_intopt uses the iocp structure, so I can easily set > the callback function. It has options for gomory and > mixed-integer-rounding cuts, but does not have options for cover or > clique cuts. > I would like to use the integer optimization with callback functions > and generating all of the types of cuts, but I cannot see how either > lpx_intopt or glp_intopt can be used. Any help will be appreciated. Lpx_intopt is a deprecated routine; eventually it will be replaced by glp_intopt. Currently glp_intopt is unable to generate cover and clique cuts, because this requires the mip preprocessor, which is still not implemented for glp_intopt. _______________________________________________ Help-glpk mailing list [email protected] http://lists.gnu.org/mailman/listinfo/help-glpk
