[Bonmin] starting point

[Pierre Bonami]

Hi Gulay,
It depends what you mean by a starting point. The branch-and-cut in 
Bonmin does not use a starting point (it is an implicit enumeration 
algorithm) so there is no way to specify one. The only thing which can 
be used by Bonmin is a good cutoff value to help prune nodes in the tree.

Now the nonlinear programming solver used by Bonmin to solve continuous 
relaxations is an interior point method and can use a starting point to 
improve convergence. You can specify such a starting point in the ampl 
model when you declare your variables. This starting point will be used 
to solve the root node relaxation.

I hope this helps. Best,
Pierre
Gulay Samatli wrote:
> Hi all,
> How can I change the starting point? I want to incorporate a solution as a starting point in the code. I mean, use a point which found previously. 
>
> Best Regards,
>
>
> Gulay
>
>
>
>
> _______________________________________________
> Bonmin mailing list
> Bonmin at list.coin-or.org
> http://list.coin-or.org/mailman/listinfo/bonmin
>