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- Fetch-and-add abstract "In computer science, the fetch-and-add CPU instruction is a special instruction that atomically modifies the contents of a memory location. It is used to implement mutual exclusion and concurrent algorithms in multiprocessor systems, a generalization of semaphores.In uniprocessor systems, it is sufficient to disable interrupts before accessing a critical section.However, in multiprocessor systems (even with interrupts disabled) two or more processors could be attempting to access the same memory at the same time. The fetch-and-add instruction allows any processor to atomically increment a value in memory, preventing such multiple processor collisions.Maurice Herlihy (1991) proved that fetch-and-add has a finite consensus number, in contrast to the compare-and-swap operation. The fetch-and-add operation can solve the wait-free consensus problem for no more than two concurrent processes.".
- Fetch-and-add wikiPageID "2050276".
- Fetch-and-add wikiPageRevisionID "596366920".
- Fetch-and-add hasPhotoCollection Fetch-and-add.
- Fetch-and-add subject Category:Computer_arithmetic.
- Fetch-and-add subject Category:Concurrency_control.
- Fetch-and-add comment "In computer science, the fetch-and-add CPU instruction is a special instruction that atomically modifies the contents of a memory location.".
- Fetch-and-add label "Fetch-and-add".
- Fetch-and-add label "Fetch-and-add".
- Fetch-and-add label "Fetch-and-add".
- Fetch-and-add label "フェッチ・アンド・アッド".
- Fetch-and-add sameAs Fetch-and-add.
- Fetch-and-add sameAs フェッチ・アンド・アッド.
- Fetch-and-add sameAs Fetch-and-add.
- Fetch-and-add sameAs m.06hlhl.
- Fetch-and-add sameAs Q127412.
- Fetch-and-add sameAs Q127412.
- Fetch-and-add wasDerivedFrom Fetch-and-add?oldid=596366920.
- Fetch-and-add isPrimaryTopicOf Fetch-and-add.