Rules: Estinated Source and Destination count

Summary

I am using parent members in in source and destination of a rule, that I believe increases the source count, any remedy for that?

Content

Hi All,

I am using parent members in in source and destination of a rule, that I believe increases the Estinated Source/Destination count.

I have made that rule to reshuffle the already allocated cost on Activities using a different driver, so the rule has to be there to serve the purpose.

Please help on what should I do to remedy the situation as ssoon as possible, as with above situation the model is taking execution time in hours.