Selective Aggregator execution

[ikapoura]

Hello there,

  I wanted to ask you if there is a way to select after which  
supersteps the aggregation phase is executed. My way of cutting some  
of the work is by setting a status id at the vertex value and then if  
it doesn't match with the status number the aggregator wants, it  
doesn't move to the rest code.
  I've solved partially the problem, but is there a way to entirely  
skip the execution so there is no additional delay?

Thanks!