[Scip] A question regarding node selection

[Stefan Vigerske]

Hi,

each nodeselector has it's priority.
SCIP then employs them in order of decreasing priority, until one of 
them selects a node.

If you type "display nodesel" in the SCIP shell, then you see the 
priorities, per default, "estimate" has the highest priority.

Stefan

> Hello SCIP list!
>
> After having (re)read the Coloring example I have a question. In coloringplugins.c the following is stated
>
>     SCIP_CALL( SCIPincludeNodeselBfs(scip) );
>     SCIP_CALL( SCIPincludeNodeselDfs(scip) );
>     SCIP_CALL( SCIPincludeNodeselEstimate(scip) );
>     SCIP_CALL( SCIPincludeNodeselHybridestim(scip) );
>     SCIP_CALL( SCIPincludeNodeselRestartdfs(scip) );
>
> I am however puzzled as to which strategy is actually employed with these calls. Some kind of mixture of them? Just the first? Or the last? What decides which strategy is used?
>
> Best regards,
>
> Tue Christensen
>
>
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-- 
Stefan Vigerske
Humboldt University Berlin, Numerical Mathematics
http://www.math.hu-berlin.de/~stefan