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Parallel processing is done via __________ package can make the elapsed time smaller than the user time.

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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) symmetry The 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 Select the correct answer from above options

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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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