Re: [Help-glpk] problem with glp_ios_heur_sol

[Michael Hennebry]

On Tue, 6 Aug 2013, Le Dinh Danh wrote:

> Hi G.S,
> It is neccesary to set parm.presolve=ON before solving MIP. In fact, I've
> tried with parm.presolve=OFF but the results are always 0. Anyway, thank
> you.

Something else is wrong.
Presolve might be useful for performance,
but it should never be necessary.
If your experiments included the heuristic solution,
perhaps the solution was not feasible.

--
Michael   address@hidden
"On Monday, I'm gonna have to tell my kindergarten class,
whom I teach not to run with scissors,
that my fiance ran me through with a broadsword."  --  Lily