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simultaneous multithreading
Last modified: Tuesday, October 16, 2007 

Abbreviated as SMT, simultaneous multithreading is a processor design technology that allows multiple threads to issue instructions each cycle. Simultaneous multithreading enables multithreaded applications to execute threads in parallel on a single multi-core processor instead of processing threads in a linear fashion.

See also Hyper-Threading.

  Related Links

Introduction to Multithreading, Superthreading and Hyperthreading
SMT, in a nutshell, allows the CPU to do what most users think it's doing anyway: run more than one program at the same time. This might sound odd, so in order to understand how it works this article will first look at how the current crop of CPUs handles multitasking.

Related Categories

Microprocessors

Related Terms

hyperthreading

Hyper-Threading

HyperTransport

multiprocessing

processor

thread

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