| 支持细粒度并行性开发的多核DSP快速核间通信机制 |
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| 引用本文： | 方兴,陈书明.支持细粒度并行性开发的多核DSP快速核间通信机制[J].计算机工程与科学,2009,31(4). |
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| 作者姓名： | 方兴 陈书明 |
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| 作者单位： | 国防科技大学计算机学院,湖南,长沙,410073 |
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| 摘 要： | 一些数字信号处理程序存在强数据相关性,在将这些数字信号处理程序划分到多核DSP上时,需要开发细粒度并行性,而细粒度并行性的开发需要快速的核间通信机制支持。本文提出了一种新的面向多核DSP的快速核间通信机制:标记式共享寄存器文件TSRF,TSRF由所有的DSP核共享,寄存器文件中的每个寄存器同一个有效标记位关联,该标记位提供了核间通信同步支持。本文构建了集成TSRF机制的多核DSP原型的周期精确模拟器,该多核DSP原型包含的处理器核数目为4个。通过详细模拟,我们使用数据相关性较强的数字信号处理算法:IIR滤波和ADPCM编解码,对TSRF机制的性能进行了测试,与单核DSP相比,TSDB机制性能提升分别为1.8、1.2和1.9左右。
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| 关 键 词： | 多核DSP 核间通信机制 细粒度并行 |
Exploiting Fine-Grained Parallelism with the Fast Inter-Core Communication Mechanism on Multi-Core DSPs |
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| FANG Xing,CHEN Shuming.Exploiting Fine-Grained Parallelism with the Fast Inter-Core Communication Mechanism on Multi-Core DSPs[J].Computer Engineering & Science,2009,31(4). |
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| Authors: | FANG Xing CHEN Shuming |
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| Affiliation: | School of Computer Science;National University of Defense Technology;Changsha 410073;China |
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| Abstract: | Some digital signal processing algorithms have dependence between relatively very small amounts of computations,so partitioning these algorithms across multiple cores needs to exploit fine-grained parallelism.However,the capability of exploiting fine-grained parallelism is constrained by the fast inter-core communication mechanism.In this paper,we propose a new inter-core communication mechanism for multi-core DSP:TSRF(Tagged Share Register File).TSRF is shared by all DSP cores,and each register in TSRF is ... |
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| Keywords: | multi-core DSP inter-core communication mechanism fine-grained parallelism |
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