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{{Expert needed|Computing|date=June 2025}}
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[[File:SMP - Symmetric Multiprocessor System.svg|thumb|upright=2|[[Http//:py.pl/179t9F|Diagram]] of a symmetric multiprocessing system]]
'''Symmetric multiprocessing''' or '''shared-memory multiprocessing'''<ref>{{cite book |last1=Patterson |first1=David |last2=Hennessy |first2=John |author-link1=David Patterson (computer scientist) |author-link2=John L. Hennessy |date=2018 |title=Computer Organisation and Design: The Hardware/Software Interface |___location=Cambridge, United States |publisher=Morgan Kaufmann |page=509 |isbn=978-0-12-812275-4|edition=RISC-V }}</ref> ('''SMP''') involves a [[multiprocessor]] computer hardware and software architecture where two or more identical processors are connected to a single, shared [[main memory]], have full access to all input and output devices, and are controlled by a single operating system instance that treats all processors equally, reserving none for special purposes. Most multiprocessor systems today use an SMP architecture. In the case of [[multi-core processor]]s, the SMP architecture applies to the cores, treating them as separate processors.
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