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From StephanEwen <...@git.apache.org>
Subject [GitHub] flink pull request: [FLINK-785] Chained AllReduce / AllGroupReduce...
Date Fri, 13 Feb 2015 10:54:48 GMT
Github user StephanEwen commented on the pull request:

    https://github.com/apache/flink/pull/370#issuecomment-74236667
  
    The chained reducer variant makes more sense. The question is, what is cheaper - serialized
exchange through the in-mem-channel, or the copying. My gut feeling is that the copy is a
bit better, so it may be worth it.
    



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