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John Sauter (talk | contribs) on early SMP systems, multiple cabinet-sized processors were all in the same room as the memory cabinets and peripherals |
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== Advantages/Disadvantages ==
In SMP, all of the processors are tightly coupled inside the same box with a bus or switch
Some of the components that are shared are global memory, disks, and I/O devices. Only one copy of an OS runs on all the processors, and the OS must be designed to take advantage of this architecture. Some of the basic advantages involves cost-effective ways to increase throughput. To solve different problems and tasks, SMP applies multiple processors to that one problem, known as [[parallel programming]]. However, there are a few limits on the scalability of SMP due to [[cache coherence]] and shared objects.
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