[Coin-discuss] Questions for CbcModel

[Nicolás Anastasiadis]

Hi
Where are you using the CbcModel? at Neos Server or you builded the file on
your pc? Are you using AMPL?

Nico

On 8/30/06, PAN, Zhendong <zhendongpan at 163.com> wrote:
>
> Hello coin-discuss,
>
> I tried to use CbcModel to solve a integer program problem. However, the
> results returned is
>
>
> Cbc3007W No integer variables - nothing to do
> Clp0006I 0  Obj 0 Primal inf 70.5 (24)
> Clp0006I 4  Obj 177.5
> Clp0000I Optimal - objective value 177.5
> Clp0006I 0  Obj 0 Primal inf 70.5 (24)
> Clp0006I 4  Obj 177.5
> Clp0000I Optimal - objective value 177.5
> Cbc0004I Integer solution of 177.5 found after 0 iterations and 0 nodes
> Cbc0001I Search completed - best objective 177.5, took 0 iterations and 0
> nodes
> Clp0006I 0  Obj 0 Primal inf 70.5 (24)
> Clp0006I 4  Obj 177.5
> Clp0000I Optimal - objective value 177.5
> Cbc0004I Integer solution of 177.5 found after 0 iterations and 0 nodes
> Clp0000I Optimal - objective value 177.5
>
> How can I tell the CbcModel which variables are integer. I found no such
> examples on http://www.coin-or.org/Cbc/index.html.
>
> Best regards,
>
> PAN, Zhendong
> zhendongpan at 163.com
> 2006-08-30
>
>
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