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Aggressive dynamic execution of multimedia kernel traces

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3 Author(s)
B. Bishop ; Dept. of Comput. Sci. & Eng., Pennsylvania State Univ., University Park, PA, USA ; R. Owens ; M. J. Irwin

There has been relatively little analytical work on processor optimizations for multimedia applications. With the introduction of MMX by Intel, it is clear that this is an area of increasing importance. Building on previous work, the authors propose optimizations for multimedia architectures that support independent parallel execution of instructions within dynamically assembled traces, resulting in dramatic performance improvements. Specifically they propose simplified instruction scheduling and register renaming algorithms due to constraints on trace formation. In addition, they suggest specific instruction pool and trace cache parameters. They constructed a simulator in order to measure the benefits of these processor optimizations for multimedia applications. The simulated machine, which could fetch/decode 2 instructions per cycle, performed better than a superscalar machine that could fetch/decode 8 instructions per cycle. Execution rates as high as 7.3 instructions per cycle were achieved for the benchmarks simulated, assuming 16 instructions per trace

Published in:

Parallel Processing Symposium, 1998. IPPS/SPDP 1998. Proceedings of the First Merged International ... and Symposium on Parallel and Distributed Processing 1998

Date of Conference:

30 Mar-3 Apr 1998