[Osi] Is there a way to deactivate solver output?

Christophe-Marie Duquesne chm.duquesne at gmail.com
Sat Apr 24 19:04:51 EDT 2010

On Sat, Apr 24, 2010 at 8:23 PM, Ted Ralphs <ted at lehigh.edu> wrote:
> The branchandbound() method in OsiClp is a very basic branch and bound
> implementation that should not really be used in practice. The
> messages that are output there do not come through the message handler
> and so you can't turn them off. If you really want to solve an integer
> program, you should use Cbc directly. If you use OsiCbc, I think
> things will work as you expect, although OsiCbc may have its own
> quirks. I realize this is a bit confusing and it is in my TODO list to
> look at these two Osi's and try to fix them up so they behave a little
> more consistently. Perhaps there should really just be one Osi class
> that calls both Clp and Cbc, depending on whether the problem is an LP
> or an MILP. If you could file tickets on whatever we can't get
> resolved quickly, that would be helpful.

I just learnt something. Thank you for providing inputs. I'll look at
this monday and file a ticket accordingly.

Christophe-Marie Duquesne
06 84 14 26 82 - mobile
04 76 57 48 06 - g-scop
04 97 23 27 33 - amadeus

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