Quote: parallel execution needs an even distribution while communication needs concentration; for two processes, either evenly divide or one alone

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The results obtained in the body of this … evenly, while the effects of communication overhead tend … together result in a policy that is discontinuous. … that either both the processors are kept busy … the relative amount of computation and communication. There … the heavier loaded machine does all the work. … [generalizes also to any number of homogenous processors, Heterogeneous has similar results].   Google-1   Google-2

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Topic: models of parallel computation (33 items)