[Osi] Gurobi setting parameters

[Yacine Gaoua]

Thank you Stefan.
its working very well.
another question about setting Gurobi parameters. i using  GRBsetdblparam(si->getEnvironmentPtr(), GRB_DBL_ATTR_MIPGAP, this->optimizationGap); but it dosent work, may be its not the good way t define it.
Thank you in advanceYacine,


      De : Stefan Vigerske <stefan at math.hu-berlin.de>
 À : Yacine Gaoua <y.gaoua at yahoo.com>; "osi at list.coin-or.org" <osi at list.coin-or.org> 
 Envoyé le : Vendredi 31 mars 2017 11h04
 Objet : Re: [Osi] OsiGrbSolverInterface Bug
   
Hi.

handling the exception may give some insight.
try
{
  OsiSolverInterface *si= new OsiGrbSolverInterface();
}
catch( CoinError& error )
{
  std::cout << error.message();
}

Could be a missing Gurobi license.

Stefan

On 03/31/2017 08:42 AM, Yacine Gaoua wrote:
> Hi,
> I am using Gurobi Osi interface to solve my problem on vc++ 2010. But when i call solving method, Gurobi stop running whith an error message => (Unhandled exception to 0x751fc54f in smart_grid_CoinOR.exe: Microsoft C ++ Exception: CoinError to memory location 0x0045f010 ..).
> For th rest of Solvers (CPLEX, XPRESS, MOSEK) it running well.
> int main(){
>  //OsiSolverInterface *si= new OsiCpxSolverInterface();  //OsiSolverInterface *si= new OsiXprSolverInterface();  //OsiSolverInterface *si= new OsiMskSolverInterface();
>  OsiSolverInterface *si= new OsiGrbSolverInterface(); //Error
>  si->readLp("test1.lp");  si->branchAndBound();
> return 0;}
> Thanks for help
>
>
>
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-- 
http://www.gams.com/~stefan


   
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