[Scip] Heuristic Frequency

[Vivek Periaraj]

Hello,

I have set the following attributes of a heuristic:

#define HEUR_PRIORITY         10000
#define HEUR_FREQ             12
#define HEUR_FREQOFS          0
#define HEUR_MAXDEPTH         100000
#define HEUR_TIMING           SCIP_HEURTIMING_AFTERNODE
#define HEUR_USESSUBSCIP      FALSE

Heuristic is correctly invoked after the root node processing.

And in some models, it's invoked at node 13, node 25, etc., correctly but in some cases, it's not invoked. What criteria decides whether the heuristic should be invoked or not?

Regards,
Vivek.