| 基于单边通信的MPI广播算法 |
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| 引用本文： | 周寰,郑启龙,汪睿.基于单边通信的MPI广播算法[J].中国科学技术大学学报,2011,41(4). |
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| 作者姓名： | 周寰 郑启龙 汪睿 |
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| 作者单位： | 安徽省高性能计算重点实验室,安徽合肥230027;中国科学技术大学计算机科学与技术学院,安徽合肥230027 |
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| 基金项目： | 核高基重大专项，安徽省自然科学基金 |
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| 摘 要： | 现有的MPI集群通信的实现是基于点对点操作的双边通信协议,在此情况下,对集群通信操作进行优化已经达到了瓶颈阶段.单边通信是MPI-2中的新增功能,它的低处理开销及易于编程的特性也已成为机群系统的研究热点.基于此提出了一种结合MPI-2单边通信和流水机制的新广播通信算法one_sided_Bcast.同时,基于PLogP并行计算模型的量化分析和实验结果均表明,新广播算法较传统算法有较好的性能提升.
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| 关 键 词： | 单边通信 MPI 广播通信 优化 PLogP计算模型 |
MPI broadcast algorithm based on one-sided communication |
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| ZHOU Huan,ZHENG Qilong,WANG Rui.MPI broadcast algorithm based on one-sided communication[J].Journal of University of Science and Technology of China,2011,41(4). |
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| Authors: | ZHOU Huan ZHENG Qilong WANG Rui |
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| Institution: | ZHOU Huan1,2,ZHENG Qilong1,WANG Rui1,2(1.Anhui High Performance Computing key laboratory at Hefei,USTC,Hefei 230027,China,2.College of Computer Science and Technology,China) |
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| Abstract: | Existing MPI collective communications are typically implemented on the two-sided communication protocol of point-to-point operations.However,optimizing collective communications has reached a bottleneck phase under such circumstances.One-sided communication is a new function presented in MPI-2,and has become a hotspot in cluster system research with its lower processing overhead and easy-programming.A new broadcasting algorithm named one_sided_Bcast based on MPI-2 one-sided communication and pipeline mecha... |
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| Keywords: | one-sided communication MPI broadcast communication optimization PLogP computation model |
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