Experimental Results about Mpi Collective Communication Operations

IF 0.5 Q4 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS

Parallel Processing Letters Pub Date : 1999-04-12 DOI:10.1142/S0129626405002179

M. Bernaschi, G. Iannello, S. Crea

引用次数: 14

Abstract

Collective communication performance is critical in a number of MPI applications, yet relatively few results are available to assess the performance of mainstream MPI implementations. In this paper we focus on two widely used primitives, broadcast and reduce, and present experimental results for the Cray T3E and the IBM SP2. We compare the performance of the existing MPI primitives with our implementation based on a new algorithm. Our tests show that existing all-software implementations can be improved and highlight the advantages of the Cray hardware-assisted implementation.

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Mpi集体通信操作的实验结果

在许多MPI应用程序中，集体通信性能是至关重要的，但相对较少的结果可用于评估主流MPI实现的性能。本文重点研究了广播和约简这两个广泛使用的原语，并给出了在Cray T3E和IBM SP2上的实验结果。我们将现有MPI原语的性能与基于新算法的实现进行了比较。我们的测试表明，现有的全软件实现可以得到改进，并突出了Cray硬件辅助实现的优势。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Parallel Processing Letters COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS-

CiteScore

0.90

自引率

25.00%

发文量

期刊介绍： Parallel Processing Letters (PPL) aims to rapidly disseminate results on a worldwide basis in the field of parallel processing in the form of short papers. It fills the need for an information vehicle which can convey recent achievements and further the exchange of scientific information in the field. This journal has a wide scope and topics covered included: - design and analysis of parallel and distributed algorithms - theory of parallel computation - parallel programming languages - parallel programming environments - parallel architectures and VLSI circuits