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1998
IEEE

Simultaneous Multithreading: Maximizing On-Chip Parallelism

12 years 2 months ago
Simultaneous Multithreading: Maximizing On-Chip Parallelism
This paper examines simultaneous multithreading, a technique permitting several independent threads to issue instructions to a superscalar's multiple functional units in a single cycle. We present several models of simultaneous multithreading and compare them with alternative organizations: a wide superscalar, a fine-grain multithreaded processor, and single-chip, multiple-issue multiprocessing architectures. Our results show that both (single-threaded) superscalar and fine-grain multithreaded architectures are limited in their ability to utilize the resources of a wide-issue processor. Simultaneous multithreading has the potential to achieve 4 times the throughput of a superscalar, and double that of fine-grain multithreading. We evaluate several cache configurations made possible by this type of organization and evaluate tradeoffs between them. We also show that simultaneousmultithreading is an attractive alternative to single-chip multiprocessors; simultaneous multithreaded pr...
Dean M. Tullsen, Susan J. Eggers, Henry M. Levy
Added 05 Aug 2010
Updated 05 Aug 2010
Type Conference
Year 1998
Where ISCA
Authors Dean M. Tullsen, Susan J. Eggers, Henry M. Levy
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