[Cbc] Non deterministic solution

Yves Touchard ytouchard at gopro.com
Wed Mar 29 06:11:27 EDT 2017


Hello,

I have an lp file for which the founded solution is not deterministic.
The lp file and two different solutions files are located here:
https://www.dropbox.com/sh/1ipnrr62zyi0p71/AABlxAnsnZF8tbBmABLw1446a?dl=0

The command is:
bin/cbc pb.lp ratio 0.05 multiple 4 branch printingOptions normal solution pb.sol

FlowCover cuts must be disabled in order to get a deterministic solution.
bin/cbc pb.lp ratio 0.05 flow off multiple 4 branch printingOptions normal solution pb.sol

Thanks and regards

Yves
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