Revision as of 16:50, 23 March 2009 edit TallMagic (talk \| contribs) 3,050 edits →See also: add shared nothing architecture, fix alphebetical order ← Previous edit		Revision as of 16:47, 2 June 2009 edit undo 134.2.243.63 (talk) nowadays clusters, not MPPs, make up 80% of the TOP500 supercomputers - see http://www.top500.org/stats/list/32/archtype Next edit →
Line 2: '''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]]. ~~Today's~~Some years ago many of the most powerful [[supercomputer]]s ~~are all~~were ''MPMPP'' systems ~~such as [[Earth Simulator]], [[Blue Gene]], [[ASCI White]], [[ASCI Red]], [[ASCI Purple]], and [[ASCI Thor's Hammer]]~~. 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.

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