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From Yang <>
Subject Giraph vs good-old PVM/MPI ?
Date Tue, 06 Aug 2013 17:19:42 GMT
it seems that the paradigm offered by Giraph/Pregel is very similar to the
programming paradim of PVM , and to a lesser degree, MPI. using PVM, we
often engages in such "iterative cycles" where all the nodes sync on a
barrier and then enters the next cycle.

so what is the extra features offered by Giraph/Pregel? I can see
persistence/restarting of tasks, and maybe abstraction of the
user-code-specific part into the API so that users are not concerned with
the actual message passing (message passing is done by the framework).


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