| 基于NetSolve的并行PCG实现及其性能分析 |
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| 引用本文： | 杨林峰,张武,付朝江.基于NetSolve的并行PCG实现及其性能分析[J].计算机工程,2005,31(20):110-112. |
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| 作者姓名： | 杨林峰 张武 付朝江 |
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| 作者单位： | 上海大学计算机学院,上海,200072;上海大学计算机学院,上海,200072;上海大学计算机学院,上海,200072 |
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| 基金项目： | 上海市教委发展基金项目（205155）;上海教委E研究院-上海高校网格项目;上海市第四期重点学科建设资助项目 |
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| 摘 要： | 系统地介绍了基于Dell服务器集群的NetSolve系统的体系结构和工作原理。并在该系统上进行了并行实验，采用预条件共轭梯度法（PCG）来求解有限元结构分析中常常需要解的大规模对称正定的线性系统Ax=b，并利用阻塞调用和任务族调用实现了NetSolve并行的PCG，最后对应用的性能进行了分析。
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| 关 键 词： | 预条件共轭梯度法 非阻塞调用 任务族调用 NetSolve并行化 |
| 文章编号： | 1000-3428（2005）20-0110-03 |
| 收稿时间： | 07 6 2004 12:00AM |
| 修稿时间： | 2004-07-06 |
Implementation of Parallel PCG and Performance Analysis Based on NetSolve |
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| YANG Linfeng,ZHANG Wu,FU Chaojiang.Implementation of Parallel PCG and Performance Analysis Based on NetSolve[J].Computer Engineering,2005,31(20):110-112. |
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| Authors: | YANG Linfeng ZHANG Wu FU Chaojiang |
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| Affiliation: | School of Computer, Shanghai University, Shanghai 200072 |
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| Abstract: | The architecture and operational principle of NetSolve system based on Dell workstation cluster are firstly analyzed.Moreover a numerical experiment is given.In this experiment,large symmetric positive definite systems of linear equations Ax=b for application of finite element method with the method of preconditioned conjugate gradients(PCG) is solved.NetSolve-parallel PCG with non-blocking call and farming call are implemented,the performance of it is also presented. |
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| Keywords: | Preconditioned conjugate gradients(PCG) Non-blocking call Farming call NetSolve-parallelism |
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