|From:||Le Dinh Danh|
|Subject:||Re: [Help-glpk] problem with glp_ios_heur_sol|
|Date:||Tue, 6 Aug 2013 12:08:53 +0200|
Ok. Just try parm.presolve=OFF and let me know if then works.- G. S. -
Il giorno 05/ago/2013, alle ore 16:51, Le Dinh Danh <address@hidden> ha scritto:
Hi Giorgio Sartor,On Mon, Aug 5, 2013 at 4:14 PM, Giorgio Sartor <address@hidden> wrote:
Is glp_iocp.presolve activated?Yes, I have already set parm.presolve = ON.A common cause of incorrect solutions is that your solution is correct for the original problem but not correct for the current problem (which could have been modified by GLPK during the solving process).Stupid question: does your solution start from position 1 of the array?Yes, of course.- G. S. -
Il giorno 05/ago/2013, alle ore 14:58, Le Dinh Danh <address@hidden> ha scritto:
With "the result is still incorrect" I mean after calling the callback function, the solver find the solution but it is not correct one. I don't know why. If I don't call the cacllback, the solve provide a good solution. I can check it manually.On Mon, Aug 5, 2013 at 1:19 PM, Giorgio Sartor <address@hidden> wrote:
What do you mean with "the result is still incorrect"?
- G. S. -
Il giorno 05/ago/2013, alle ore 12:57, Le Dinh Danh <address@hidden> ha scritto:
> the result is still incorrect.
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