Massive parallel processing: Difference between revisions

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'''Massive parallel processing''' ('''MPP''') is a term used in [[computer architecture]] to refer to a computer system with many independent [[arithmetic]] units or entire [[microprocessor]]s, that run in parallel. The term ''massive'' connotes hundreds if not thousands of such units. Early examples of such a system are the [[Distributed Array Processor]], the [[Goodyear MPP]], the [[Connection Machine]], and the [[Ultracomputer]].

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Today's most powerful [[supercomputer]]s are all ''MP'' systems such as [[Earth Simulator]], [[Blue Gene]], [[ASCI White]], [[ASCI Red]], [[ASCI Purple]], and [[ASCI Thor's Hammer]].

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In this class of computing, all of the processing elements are connected together to be one very large computer. This is in contrast to [[distributed computing]] where massive numbers of separate computers are used to solve a single problem.

The earliest massively parallel processing systems all used [[serial computer]]s as individual processing elements, in order to achieve the maximum number of independent units for a given size and cost.

Through advances in [[Moore's Law]], single-chip implementations of [[massively parallel processor array]]s are becoming cost effective, and finding particular application in high performance [[embedded systems]] appplications such as [[video compression]]. Examples include chips from [[Ambric]], [[Picochip|picoChip]], and [[Tilera]].

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==See also==

*[[Massively parallel]]

*[[Massively parallel processor array]]

*[[Fifth generation computer systems project]]

*[[Multiprocessing]]

*[[Parallel computing]]

*[[Process oriented programming]]

*[[Symmetric multiprocessing]]

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