[Coin-osi-devel] Next release of Osi

[Matthew Saltzman]

On Mon, 20 Nov 2006, Antonio Frangioni wrote:

>> - Are there other relatively straightforward things that we ought to do at 
>> the same time?
>
> Since you asked ... I'd definitely love to see methods for Convex Quadratic 
> programming in the interface. This is something most of the solvers do 
> anyway, and it should be pretty straightforward to figure out a way of doing 
> it which does not break backward compatibility (since LP is QP with Q = 0).
>
> I was supposed to be one who make the first proposal and a draft 
> implementation, but the attempts I made never got to the point where they 
> could be distributed. Sorry about that. So, my only role by now in the matter 
> is that of the pesky beggar. Yet QP (and beyond) is all the rage nowadays, so 
> maybe other people will find it useful.

There is a ticket (https://projects.coin-or.org/Osi/ticket/8) asking for 
access to the interior-point methods of solvers.  CQP will be a bigger 
challenge, though, as it will need more support methods (input/output, 
etc.) than just LP methods.

I suggest posting a separate ticket for CQP and we can look at proposals, 
patches, etc., there.

Having a good starting proposal would go a long way toward getting this 
done, though.

>
> 			Best
>
> 			Antonio

-- 
 		Matthew Saltzman

Clemson University Math Sciences
mjs AT clemson DOT edu
http://www.math.clemson.edu/~mjs