[Coin-discuss] Non-integer result from an integer problem

[John J Forrest]

Esben,

Problem was with CoinPresolve (in pre-processing).  It was nothing to do
with large bounds.

Hopefully fixed in trunk and devel.

John Forrest


                                                                           
             Esben Mose Hansen                                             
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                                       Re: [Coin-discuss] Non-integer      
             11/29/06 06:56 AM         result from an integer problem      
                                                                           
                                                                           
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On Tuesday 28 November 2006 19:38, John J Forrest wrote: > Could be an error
in the mps reader.  Won't be able to look at it until > Friday. > > 1.0e30
might be magically bad number - does it go away with UI 1.0e6 for >
instance.  Lowering to around 1e5 does indeed produce integer results,
interestingly
enough. It also makes the solving much quicker, especially lowered it to
e.g.
20. I'll have to investigate this.  I doubt it is the mps reader though, as I
discovered this problem using our
own homegrown interface to the cbcsolver, which does not use the mps reader

at all.  Thanks for looking into this, --
kind regards,
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