Github user mateiz commented on the pull request:

    https://github.com/apache/spark/pull/4170#issuecomment-71768825
  
    Sorry, I'm not sure I understand about the memory. There should be the same 
amount of memory for each executor. More executors means more total memory. But 
the way that was being calculated before is fine, what's wrong with it?
    
    For CPUs, I understand wanting to start executors off at 0 CPUs and just 
having 1 per task. I actually thought we did that initially, not sure why it's 
1.


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