[Scip] problem about SCIPgetLocalDualbound ()

[Ambros Gleixner]

Dear Wei,

during the PRICERREDCOST callback, the LP is not yet solved to 
optimality, hence the LP objective is no valid dual bound, hence the 
best dual bound SCIP knows is -1e20.

Best regards,
ambros


Am 12.06.2014 09:06, schrieb weikaimas:
> hi Ambros,
>     I call SCIPgetLocalDualbound(), SCIPgetPrimalbound(), and
> SCIPgetLPObjval() in SCIP_DECL_PRICERREDCOST(pricerRedcostColoring),
> when SCIP
> gets some new useful variables and then the objective value will be
> improved,
> and SCIPgetDualboundRoot() also returns -100000000000000000000.000000.
> And I am sure the LP model of root node is right.
>    Thanks.
> 2014-06-12
> ------------------------------------------------------------------------
>    Wei kai
> School of Economics & Management
> Tongji University, Shanghai 200092, China

-- 
____________________________________________________________
Ambros M. Gleixner
Zuse Institute Berlin - Matheon - Berlin Mathematical School
http://www.zib.de/gleixner