[Osi] milp support in OSI

Matthew Saltzman mjs at clemson.edu
Thu Apr 23 10:52:42 EDT 2009

On Thu, 2009-04-23 at 09:54 -0400, Matthew Galati wrote:
> Currently OSI does support the branchAndBound function to solve a
> MILP. However, I don't see any access methods for MILP statistics
> afterwards (or any other MILP-type manipulation methods). Is there any
> intention to add this? For example, how do I get the number of nodes
> used, the gap, how do I set options specific to MILP for say, Cplex or
> Xpress calls? 
> I can always cast an Osi to an OsiCpx and then get CpxLp and CpxEnv
> ptrs and then use Cpx directly -- but obviously all of this defeats
> the purpose of having OSI.

Yes, I agree those features should be added.  Could you file a ticket so
they don't get lost in the shuffle?

For now, you'll need to poke the solvers directly.



> Thanks,
> Matt
> _______________________________________________
> Osi mailing list
> Osi at list.coin-or.org
> http://list.coin-or.org/mailman/listinfo/osi
                Matthew Saltzman

Clemson University Math Sciences
mjs AT clemson DOT edu

More information about the Osi mailing list