MPEG-2 Video Decompression on Simultaneous Multithreaded Multimedia Processors

Authors:
Heiko Oehring;Ulrich Sigmund;Theo Ungerer
Affiliations:
-;-;-
Venue:
PACT '99 Proceedings of the 1999 International Conference on Parallel Architectures and Compilation Techniques
Year:
1999

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Abstract

This paper explores microarchitecture models for a simultaneous multithreaded processor with multimedia enhancements. We enhance a wide-issue superscalar processor by the simultaneous multithreading technique, by multimedia units, and by an additional on-chip RAM storage. Our workload is a multithreaded MPEG-2 video decompression algorithm that extensively uses multimedia units. Our simulation results suggest that a 2- or 4-threaded 4-issue processor with a small on-chip RAM accessed by a local load/store unit will be superior to a wide-issue (single-threaded) superscalar processor.