Originally posted by: QiuFeng

I know you can do it when you do the branch yourself, using the following function

int CPXPUBLIC CPXbranchcallbackbranchbds(CPXCENVptr env, void * cbdata, int wherefrom, double nodeest, int cnt, const int * indices, const char * lu, const int * bd, void * userhandle, int * seqnum_p)
But suppose you are in a cut callback, and you want to record how many iterations of cut generation has been done on this node. Can you create a data structure and associate with this node? That would be convenient.

Thanks!
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Originally posted by: SystemAdmin

Even cut callbacks have this facility:

status = CPXsetusercutcallbackfunc(env, cutcallback, cbhandle);

I hope it would work with 'cbhandle' too?

Regards,
Vivek.
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Originally posted by: SystemAdmin

Since CPLEX 12.5.0.0 there is function CPXcallbacksetuserhandle that allows you to set/change the user data stored at a node. If I understand correctly then this is exactly what you need.
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Originally posted by: QiuFeng

Thanks a lot.

It seems that I need to upgrade from 12.2 to 12.5.
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