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FITEE
Front. Inform. Technol. Electron. Eng.  2015, Vol. 16 Issue (2): 135-151    DOI: 10.1631/FITEE.1400239
    
面向多媒体特定应用的剖析和标注相结合MPSoC性能评估方法
Kai Huang, Xiao-xu Zhang, Si-wen Xiu, Dan-dan Zheng, Min Yu, De Ma, Kai Huang, Gang Chen, Xiao-lang Yan
Institute of VLSI Design, Zhejiang University, Hangzhou 310027, China; College of Optical and Electronic Technology, China Jiliang University, Hangzhou 310018, China; Microelectronics CAD Center, MOE Key Lab of RF Circuits and Systems, Hangzhou Dianzi University, Hangzhou 310018, China; Department of Informatics VI, Technical University Munich, Garching 85748, Germany
Profiling and annotation combined method for multimedia application specific MPSoC performance estimation
Kai Huang, Xiao-xu Zhang, Si-wen Xiu, Dan-dan Zheng, Min Yu, De Ma, Kai Huang, Gang Chen, Xiao-lang Yan
Institute of VLSI Design, Zhejiang University, Hangzhou 310027, China; College of Optical and Electronic Technology, China Jiliang University, Hangzhou 310018, China; Microelectronics CAD Center, MOE Key Lab of RF Circuits and Systems, Hangzhou Dianzi University, Hangzhou 310018, China; Department of Informatics VI, Technical University Munich, Garching 85748, Germany
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摘要： 目的：性能估计已成为异构MPSoC设计中一个非常重要且具有挑战性的任务。在设计早期进行准确快速估计性能对于设计空间探索十分必要。本文采用GCC剖析技术和代码标注技术，结合MPSoC分层抽象概念，探讨逐层次完善的性能评估技术在MPSoC体系结构探索中的应用。
创新：为面向多媒体应用的MPSoC性能估计提出一个从VA层到TA层的剖析和标注相结合流程，使性能估计可以被有效逐层完善。
方法：基于GNU gcov工具，在本机模拟过程中剖析给定应用程序代码执行的统计信息，并且支持实时性能分析，快速、准确估计VA模型的计算负载。基于VA模型得到的计算负载性能的结果标注，利用TA模型的SystemC时序精确级仿真得到通信延时结果，使TA模型性能估计更高效，完善整个MPSoC性能估计。
结论：研究一个剖析和标注技术相结合的MPSoC性能评估方法和流程。在VA层得到准确计算负载性能并标注给TA层；在TA层利用基于标注的仿真方法完善通信延时，使得性能估计更高效。通过M-JPEG和MEPG2两个典型视频多媒体应用实验，展示本文方法的高效、快速与准确。
关键词： MPSoC;  逐层完善;  本机模拟;  性能估计;  剖析;  标注;  Gcov    
Abstract: Accurate and fast performance estimation is necessary to drive design space exploration and thus support important design decisions. Current techniques are either time consuming or not accurate enough. In this paper, we solve these problems by presenting a hybrid method for multimedia multiprocessor system-on-chip (MPSoC) performance estimation. A general coverage analysis tool GNU gcov is employed to profile the execution statistics during the native simulation. To tackle the complexity and keep the analysis and simulation manageable, the orthogonalization of communication and computation parts is adopted. The estimation result of the computation part is annotated to a transaction accurate model for further analysis, by which a gradual refinement of MPSoC performance estimation is supported. The implementation and its experimental results prove the feasibility and efficiency of the proposed method.
Key words: MPSoC    Gradual refinement    Native simulation    Performance estimation    Profiling    Annotation    Gcov
收稿日期: 2014-07-05 出版日期: 2015-01-29
CLC:  TP36  
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Kai Huang
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引用本文:

Kai Huang, Xiao-xu Zhang, Si-wen Xiu, Dan-dan Zheng, Min Yu, De Ma, Kai Huang, Gang Chen, Xiao-lang Yan. Profiling and annotation combined method for multimedia application specific MPSoC performance estimation. Front. Inform. Technol. Electron. Eng., 2015, 16(2): 135-151.

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http://www.zjujournals.com/xueshu/fitee/CN/10.1631/FITEE.1400239    或    http://www.zjujournals.com/xueshu/fitee/CN/Y2015/V16/I2/135

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