[Coin-bcpdiscuss] LP Lower Bound

[Carlos Eduardo de Andrade]

Hi,

I have implemented a branch-and-price algo, and I should want to use
the first LP relaxed solution value as lower bound. This solution is
obtained when we can't generate any more column and we have to branch.
How can I use this information as lower bound?

Bcp call the BCP_lp_user::computer_lower_bound() each iteration, but
it isn't correct for my objectives. I have to take the lower bound in
last iteration of root node.

Can somebody help me???

Thank you very much,

Carlos

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Carlos Eduardo de Andrade
Computing Institute - UNICAMP
Brazil