[SCIP] Number of heuristic's calls

[Gregor Hendel]

Hi Andre,

the properties look good for the purpose you describe, although I would 
suggest to use the letter 'M' to indicate a heuristic of that name :)

Most likely, SCIP decides to restart the solution process, such that 
effectively not only 1, but 2 root nodes are evaluated. Can you verify 
whether SCIP actually restarted from some log file output?

If you really want to run only once, you have to include a statement 
into the heurExec callback to return immediately if 
SCIPheurGetNCalls(heur) > 0.

Hope this helps,
Gregor

Am 09.05.2018 um 16:33 schrieb André Filipe Lanca Serrano:
> Hi to all,
>
> I created an heuristic and I would like to call it just once, in the 
> root node, as the first heuristic. I'm using the following properties 
> in my heuristic.
>
> #define HEUR_NAME             "myheuristic"
> #define HEUR_DESC             "My heuristic"
> #define HEUR_DISPCHAR         'g'
> #define HEUR_PRIORITY         99999999
> #define HEUR_FREQ             0
> #define HEUR_FREQOFS          0
> #define HEUR_MAXDEPTH         -1
> #define HEUR_TIMING           SCIP_HEURTIMING_BEFORENODE
> #define HEUR_USESSUBSCIP      FALSE
>
> After running my project I get two calls from my heuristic using the 
> method SCIPheurGetNCalls(heur). What am I doing wrong here? Am I 
> missing smth? I followed all the instructions on how to add primal 
> heuristics and I guess it's smth to do with the properties...
>
> Thank you in advance.
>
> Kind regards,
> André Serrano
>
> _______________________________________________
> Scip mailing list
> Scip at zib.de
> https://listserv.zib.de/mailman/listinfo/scip