Editing Parallel algorithm (section)

==Motivation==
Parallel algorithms on individual devices have become more common since the early 2000s because of substantial improvements in [[multiprocessing]] systems and the rise of [[multi-core]] processors. Up until the end of 2004, single-core processor performance rapidly increased via [[frequency scaling]], and thus it was easier to construct a computer with a single fast core than one with many slower cores with the same [[throughput]], so multicore systems were of more limited use. Since 2004 however, frequency scaling hit a wall, and thus multicore systems have become more widespread, making parallel algorithms of more general use.