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Study on the Automatic Recognition of Subword-Parallelism in Multimedia Programs

Author: KuangWangQiu
Tutor: TangWenSheng
School: Hunan Normal University
Course: Computer Software and Theory
Keywords: MediaBench SimpleScalar Sub-word parallel Parallelizing compiler
CLC: TP391.4
Type: Master's thesis
Year: 2009
Downloads: 27
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Abstract


The proliferation of multimedia information requires modern computer must have the superior multimedia processing capacity , multimedia applications , one of the most prominent feature is its inherent parallelism , the same rules of operation require multiple data unit at the same time , this parallelism said for sub-word parallel . In order to effectively tap and take advantage of parallel , most current architecture design instruction set of multimedia instruction extensions , in order to achieve the sub- word parallel operation , but how to get the compiler to generate efficient parallel code , how ordinary serial C program identified sub- word parallel instructions , a cutting-edge research topics . Multimedia applications subword parallel automatic identification technology . First study simulator the SimpleScalar composition structure and simulation processes and make improvements based on characteristics analysis of 13 representative applications of multimedia applications the MediaBench and its in typical multimedia applications MediaBench test , from a macro perspective fully typical multimedia applications in mining parallel . Followed by the application of MPEG-4 and EPIC critical function and extraction and analysis of the core cycle to dig parallel features of multimedia applications , from the microscopic point of view . The end of the article for the current compiler technology is difficult to fully tap and sub- word parallel basic block positioning procedure problem , design a program flow diagram of the serial image processing algorithms . Includes three aspects : 1 , designed the the sub word stream Figure SWFG ( Sub - Word FlowGraph ) improved data flow diagram to make the subword parallel explicit expression in the serial C program ; 2, using the graph pattern matching , from identify and extract the data flow diagram , parallel access mode to generate explicit sub- word flow graph ; generate explicit formula word flow diagram , improved tree pattern matching algorithm parallel instruction selection .

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer applications > Information processing (information processing) > Pattern Recognition and devices
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