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Parallel processing is done via __________ package can make the elapsed time smaller than the user time.(a) parallel(b) statistics(c) distributed(d) symmetryThe question was asked at a job interview.Origin of the question is R Profiler topic in section Profiling, Simulation and Data Analysis of R Programming

Answer» RIGHT choice is (a) parallel

Best explanation: When you have MULTIPLE processors/- cores/machines working in parallel, the amount of time that the collection of CPUs SPENDS working on a problem is the same as with a single CPU, but because they are OPERATING in parallel, there is a savings in ELAPSED time.


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