[Scip] How to terminate SCIP earlier?

[Gerald Gamrath]

Dear Xiangyong Li,

if you know that every feasible solution will have an integer objective 
value and therefore want to stop the solving process when the dualbound 
is larger than primalbound - 1, you can just inform SCIP that this is 
the case by calling SCIPsetObjIntegral().

Otherwise, you can call SCIPinterruptSolve() to stop the solving 
process, but SCIP will then print that it was interrupted, not that it 
was solved to optimality.

Best,
Gerald

Am 23.09.2014 um 10:02 schrieb lixiangyong at 163.com:
> Dear all,
>
> I am using SCIP to implement my branch and price algorithm.
> Now I want to terminate the SCIP earlier since I can judge the problem 
> has been optimally solved when some condition is satisfied.
> Suppose UB and LB be the objective value of best incumbent and the 
> best remaining node in the branch and bound tree.
> For my instances considered, SCIP has optimally solved one instance if 
> UB-LB < 1.
>
> Can you tell me how to set the earlier termination condition in SCIP?
>
> Thanks,
>
>
> Xiangyong Li
>
>
>
>
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