[Cbc] decide on feasible solution after (time/node) limit exceed

[John J Forrest]

Will look at it.

for now test bestSolution - if not NULL then has best solution

John Forrest


                                                                           
             Stefan Vigerske                                               
             <stefan at math.hu-b                                             
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                                                                   Subject 
                                       Re: [Cbc] decide on feasible        
             06/27/07 09:31 AM         solution after (time/node) limit    
                                       exceed                              
                                                                           
                                                                           
                                                                           
                                                                           
                                                                           
                                                                           




Hi,

please find attached a simple program and model which illustrates the
problem.

Stefan Vigerske wrote:
> Hi,
>
> when Cbc exists with an exceed of time or node limit, how do I decide
> whether a feasible solution has been found?
> For one model, I tried bool CbcModel::feasibleSolution(int &
> numberIntegerInfeasibilities, int & numberObjectInfeasibilities), but it
> report true and no infeasibilities, even though Cbc has not find a
> feasible point ("best objective 1E+50").
> Also the point that I get with CbcModel::solver()->getColSolution() is
> not integer feasible.
>
> Best,
> Stefan
>


--
Stefan Vigerske
Humboldt University Berlin, Numerical Mathematics
http://www.math.hu-berlin.de/~stefan
(See attached file: cbctest.cpp.gz)(See attached file: fixed.mps.gz)
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