[Cbc] Cutlength value

Yves Touchard ytouch at dxo.com
Wed Dec 3 12:59:58 EST 2014


Hello,

There is a constraint file (https://www.dropbox.com/s/e1x1xilj4gr200u/timing1.lp?dl=0) which is not solved when cutlength is 40:

bin/cbc timing1.lp threads 104 ratio 0.05 cutlength 40 multiple 4 dives 301 branch printingOptions rows solution timing1.sol

but has an optimal solution if cutlength is 30:

bin/cbc timing1.lp threads 104 ratio 0.05 cutlength 30 multiple 4 dives 301 branch printingOptions rows solution timing1.sol

Not sure to know which value is fine for my set of problems.

Regards

Yves

[Tests done with Rev #2100 and #2099 of Cbc trunk]

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