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For open source, there is hadoop: http://hadoop.apache.org/core/docs/current/mapred_tutorial.html http://hadoop.apache.org/core/docs/current/mapred_tutorial.h.

• wheels 18y ago
  Latest version of Qt also implements MapReduce patterns (only for multi-core, not across the network). There's also good old MPI, which isn't terribly sexy, but gets the job done. I found this post rather interesting when I ran across it: http://jaliyacgl.blogspot.com/2008/07/july-2nd-report.html http://jaliyacgl.blogspot.com/2008/07/july-2nd-report.html