[Scip] Column generation, meaning of the output from CPLEX after a column is added

[Xavier Schepler]

Thank you so much.
Now, everything is going so much faster ;-)

I will send you statistics later.

Best,

Xavier

Le 11/03/2014 18:04, Gerald Gamrath a écrit :
> Hi Xavier,
>
> I can only guess what it means: Probably, the steepest edge norm for 
> the new column is computed, because we use the steepest edge pricing 
> method within CPLEX by default. Is there any more output? But probably 
> the time is spent for solving the LP after the norms were initialized, 
> CPLEX does not always print output for that.
>
> You can also try to change the CPLEX pricing method to something else, 
> e.g., devex pricing by setting the parameter "lp/pricing = d" and see 
> how this changes the behavior.
>
> Best,
> Gerald

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