Thanks for the prompt response, Kish! I should had read the docs about abort_handler more carefully. My problem is a MIP problem, and getting initial solution takes couple of minutes. Sergii. On Sun, Jul 14, 2013 at 4:49 PM, Kish Shen <kisshen_at_...5...> wrote: > Hi Sergii, > > > On 14/07/2013 20:48, Sergii Dymchenko wrote: > >> Hi, >> >> How can I get non-optimal solution from eplex with timeout? >> >> > You don't need to do anything, the best non-optimal solution (if > available) will be returned automatically. > > If you are solving a linear problem, then the first solution found with > the dual method will be the optimal solution, so there are no sub-optimal > solutions in such cases. > > > I setup eplex with: >> eplex_solver_setup(min(Obj), _, [timeout(10), abort_handler(ab)], >> []), >> and after timeout my handler `ab` is called. >> >> But what to do in `ab` handler to get non-optimal solution? >> >> > The abort_handler handles the abort case, where a solve aborts without > finding any feasible solution, as described in the reference documentation > for eplex_solver_setup/4: > > >abort_handler(+Goal) > > Specifies a user defined goal Goal to handle the case when the > > external solver aborted without finding any solution. Goal would be > > run in place of raising the default eplex_abort event. > > So there is no solution to get, and it is not known if the problem is > feasible. > > > I can get best or worst objective bounds with `eplex_get(best_bound, X)`, >> but `eplex_get(typed_solution, Vars)` just fails. >> >> > The best and worst bounds provide bounds on the any optimal solution, but > on its own does not imply there is any solution. > > > Cheers, > > Kish > > Or maybe using abort_handler for getting non-optimal solution is not a >> good >> idea and there is a better way? >> >> Sergii. >> >> >> >> ------------------------------**------------------------------** >> ------------------ >> See everything from the browser to the database with AppDynamics >> Get end-to-end visibility with application monitoring from AppDynamics >> Isolate bottlenecks and diagnose root cause in seconds. >> Start your free trial of AppDynamics Pro today! >> http://pubads.g.doubleclick.**net/gampad/clk?id=48808831&iu=** >> /4140/ostg.clktrk<http://pubads.g.doubleclick.net/gampad/clk?id=48808831&iu=/4140/ostg.clktrk> >> >> >> >> ______________________________**_________________ >> ECLiPSe-CLP-Users mailing list >> ECLiPSe-CLP-Users_at_...309...**sourceforge.net<ECLiPSe-CLP-Users_at_lists.sourceforge.net> >> https://lists.sourceforge.net/**lists/listinfo/eclipse-clp-**users<https://lists.sourceforge.net/lists/listinfo/eclipse-clp-users> >> >> >Received on Mon Jul 15 2013 - 00:59:49 CEST
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