ClearSpeed CSX600互连的性能分析

2009 IEEE International Symposium on Parallel and Distributed Processing with Applications Pub Date : 2009-08-18 DOI:10.1109/ISPA.2009.102

Yuri Nishikawa, M. Koibuchi, Masato Yoshimi, Akihiro Shitara, K. Miura, H. Amano

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引用次数: 4

摘要

ClearSpeed的CSX600由96个处理元素(pe)组成，采用一维阵列拓扑进行简单的SIMD处理。为了清楚地显示现有现代多核SIMD系统中noc的性能因素和实际问题，本文测量和分析了CSX600的noc，称为Swazzle和ClearConnect。评估和分析结果表明，发送和接收开销是限制有效网络带宽的主要因素。我们发现(1)使用的pe的数量，(2)传输数据的大小，以及(3)共享内存的数据对齐是充分利用带宽的三个要点。此外，我们估计了并行应用程序中数据传输的最佳和最坏延迟。

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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Performance Analysis of ClearSpeed's CSX600 Interconnects

ClearSpeed's CSX600 that consists of 96 Processing Elements (PEs) employs a one-dimensional array topology for a simple SIMD processing. To clearly show the performance factors and practical issues of NoCs in an existing modern many-core SIMD system, this paper measures and analyzes NoCs of CSX600 called Swazzle and ClearConnect. Evaluation and analysis results show that the sending and receiving overheads are the major limitation factors to the effective network bandwidth. We found that (1) the number of used PEs, (2) the size of transferred data, and (3) data alignment of a shared memory are three main points to make the best use of bandwidth. In addition, we estimated the best- and worst-case latencies of data transfers in parallel applications.

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2009 IEEE International Symposium on Parallel and Distributed Processing with Applications

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