[Coin-discuss] Very hard MIP Models

[John J Forrest]

Mauro,

There is preprocessing with Cbc.  It is different from OSL's and each has 
some advantages but I would hope that Cbc would be competitive.  Can you 
send me the models to play with?

Thanks

John



Mauro Scarioni <75824002 at it.ibm.com> 
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09/21/2006 08:18 AM
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[Coin-discuss] Very hard MIP Models







Hi all

i've a consolidated set of MIP models running under OSL and solving well.

In particular a class of model are solved by OSL MIP presolver in very
small time.
Now i need to solve these models with Coin, but i'm not able to find
solution in reasonable time.

Has anyone got a Coin configuration that simulate the OSL MIP Presolver ?

Thank in advance

Mauro



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