Parallel Processing is a method of dividing a computation and performing those divided calculations at the same time (in parallel) with one another. Parallel processing can increase processing speeds and more efficiently use processing resources than sequentially processing the same data.
Parallel processing also increases reliability. Despite our best efforts, processing errors still occur from time to time. Before parallel processing, if an error occurred, we would have to restart the entire process from the beginning. However, since parallel processing splits the processing load into discrete chunks, we can restart only the small part of the process that failed without disrupting the rest of the processing that we are doing.
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