[Coin-discuss] Osi cplex patches.

[Matthew Saltzman]

On Thu, 23 Jan 2003 Vivian.DeSmedt at aisystems.be wrote:

> Dear Coin,
>
> We already discuss about that or least make some remarks on that subject.
>
> The convention for conversion between bound and sense seems not to be the
> same for cplex and some other solver.
>
> But the OsiCpxSolverInterface still use the convertBoundToSense and
> convertSenseToBound defined in the
> OsiSolverInterface which lead to miscomprehension and different result
> between solvers.
>
> (In particular if dummy constraint are added lb = -inf, ub = inf)
>
> I would like to propose a patch of the OsiCpxSolverInterface to solve that.
>
> In order to do that I would like to know I you agree with my analysis and
> what should I do to submit the patch.

OK Give us a chance to test (I will have a chance this weekend).

-- 
		Matthew Saltzman

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