[Coin-discuss] Cglpreproccesing seems "improve" the objective too much

[Esben Mose Hansen]

On Wednesday March 7 2007 16:50, John J Forrest wrote:
> Problem was in part of presolve which was performing a transformation
> which was not valid for integer variables - so a coefficient of 4.004 and
> a rhs of of 4 forced several variables to have lower bounds of 1.0.  I
> suspect the problem is then infeasible - which can take  along time to
> solve.
>
> I have made the smallest change I could think of to CoinPresolve to get
> round problem.
>
> John Forrest

Excellent :)

-- 
regards, Esben

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