multiprocessor - définition. Qu'est-ce que multiprocessor
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Qu'est-ce (qui) est multiprocessor - définition

USE OF TWO OR MORE CENTRAL PROCESSING UNITS (CPUS) WITHIN A SINGLE COMPUTER SYSTEM
Multiprocessor; Multi-processing; Multi-processor; Multiple processing units; Tightly coupled system; DP system; Multicore programming; Tightly Coupled Systems; Tightly coupled systems; Multiprocessor programming

multiprocessor         
multiprocessor         
¦ noun a computer with more than one central processor.
Multiprocessor system architecture         
  • Crossbar
  • Double-reverse ring
  • Loosely coupled multiprocessor system
  • Multiprocessor system with global data multiplication - global data write-broadcasting
  • Multiprocessor system with global data multiplication
  • Symmetric multiprocessing system
  • Segmented bus
SYSTEM WITH MORE THAN ONE PROCESSOR
Architecture of multiprocessor systems
A multiprocessor system is defined as "a system with more than one processor", and, more precisely, "a number of central processing units linked together to enable parallel processing to take place".

Wikipédia

Multiprocessing

Multiprocessing is the use of two or more central processing units (CPUs) within a single computer system. The term also refers to the ability of a system to support more than one processor or the ability to allocate tasks between them. There are many variations on this basic theme, and the definition of multiprocessing can vary with context, mostly as a function of how CPUs are defined (multiple cores on one die, multiple dies in one package, multiple packages in one system unit, etc.).

According to some on-line dictionaries, a multiprocessor is a computer system having two or more processing units (multiple processors) each sharing main memory and peripherals, in order to simultaneously process programs. A 2009 textbook defined multiprocessor system similarly, but noting that the processors may share "some or all of the system’s memory and I/O facilities"; it also gave tightly coupled system as a synonymous term.

At the operating system level, multiprocessing is sometimes used to refer to the execution of multiple concurrent processes in a system, with each process running on a separate CPU or core, as opposed to a single process at any one instant. When used with this definition, multiprocessing is sometimes contrasted with multitasking, which may use just a single processor but switch it in time slices between tasks (i.e. a time-sharing system). Multiprocessing however means true parallel execution of multiple processes using more than one processor. Multiprocessing doesn't necessarily mean that a single process or task uses more than one processor simultaneously; the term parallel processing is generally used to denote that scenario. Other authors prefer to refer to the operating system techniques as multiprogramming and reserve the term multiprocessing for the hardware aspect of having more than one processor. The remainder of this article discusses multiprocessing only in this hardware sense.

In Flynn's taxonomy, multiprocessors as defined above are MIMD machines. As the term "multiprocessor" normally refers to tightly coupled systems in which all processors share memory, multiprocessors are not the entire class of MIMD machines, which also contains message passing multicomputer systems.

Exemples du corpus de texte pour multiprocessor
1. Dell said in its quarterly earnings report that it planned to introduce multiprocessor server computers that would use AMD‘s Opteron processors by the end of the year.
2. But Kevin Rollins, chief executive, commented: "Intel are still going to remain the vast majority of the processors we buy." Related stories '4; Dell to use AMD chips as profits slumpGo there More service and support please, Mr DellGo there Scott McLaughlin, an Intel spokesman, said it was a competitive industry and the multiprocessor sector had been a challenging one.