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异构计算环境中循环级并行性提取及调度
引用本文:曾国荪,陆鑫达,王景村.异构计算环境中循环级并行性提取及调度[J].计算机工程,2000,26(3):52-54.
作者姓名:曾国荪  陆鑫达  王景村
作者单位:上海交通大学计算机科学及工程系!上海200030江西师范大学计算机科学系,南昌330027,上海交通大学计算机科学及工程系!上海200030,上海交通大学计算机科学及工程系!上海200030
基金项目:国家自然科学基金!(69773014)
摘    要:首先给出了循环最大加速比的定义,它是循环体中隐含并行性大小的度量。并且讨论了Do循环的各种类型和它们的相关性以及隐含的并行性。在异构环境中,如何开发这些并行性,文中给出了几种方法,这就是异构计算消除串行瓶颈,异构Do_all_loop调度,异构Do_a_cross调度。无论在理论分析还是在实验结果上,这些方法所取得的计算性能都优于同构计算。

关 键 词:异构计算环境  循环并行性  计算机  并行处理

Extracting Loop-level Parallelism and Scheduling in Heterogeneous Computing Environment
Zeng Guosun Lu Xingda, Wang Jingcun Dept of Computer Science and Engineering,Shanghai Jiaotong University,Shanghai Zeng Guosun Dept of Computer Science,Jiangxi Normal University,Nanchang.Extracting Loop-level Parallelism and Scheduling in Heterogeneous Computing Environment[J].Computer Engineering,2000,26(3):52-54.
Authors:Zeng Guosun Lu Xingda  Wang Jingcun Dept of Computer Science and Engineering  Shanghai Jiaotong University  Shanghai Zeng Guosun Dept of Computer Science  Jiangxi Normal University  Nanchang
Affiliation:Zeng Guosun Lu Xingda, Wang Jingcun Dept of Computer Science and Engineering,Shanghai Jiaotong University,Shanghai 200030 Zeng Guosun Dept of Computer Science,Jiangxi Normal University,Nanchang 330027
Abstract:in this paper, we put forward the definition of loop maximum speedup, which is the metric of parallelism hidden in loop body. We also study the classes of Do iteration and their dependence as well as the parallelism they contain. How to exploit such parallelism under heterogeneous computing environment? The paper presents several approaches, which are eliminating serial bottleneck by means of heterogeneous computing, heterogeneous Do-all-loop scheduling and heterogeneous Do-a-cross scheduling. We find that, not only on theoretical analysis but also from experimental results, these schemes acquire better performance than in homogeneous computing.
Keywords:Heterogeneous computing environment  Loop parallelism  Speedup  Scheduling  Software pipeline
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