| 分组平差网格计算研究 |
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| 引用本文： | 李昌贵,吕志平.分组平差网格计算研究[J].测绘科学,2011,36(5):25-27. |
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| 作者姓名： | 李昌贵 吕志平 |
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| 作者单位： | 信息工程大学测绘学院,郑州,450052 |
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| 基金项目： | 国家自然科学基金项目(40874008); 国家863计划资助项目(2009AA12Z305) |
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| 摘 要： | 分组平差是大地测量中一种常用的计算模型,是对大规模平差问题的一种分解,本身具有分布性的特征,适合于网格计算。本文首先通过对分组平差公式的分析,在几个步骤和层面上将其分解为若干子计算,然后提出子计算服务和子计算代理的概念,详细阐述了基本子计算、聚合子计算和工作流的概念,最后给出了并行工作流和串行工作流的实现途径。
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| 关 键 词： | 分组平差 网格计算 子计算 工作流 |
Group adjustment based on grid computing |
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| LI Chang-gui,LV Zhi-ping.Group adjustment based on grid computing[J].Science of Surveying and Mapping,2011,36(5):25-27. |
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| Authors: | LI Chang-gui LV Zhi-ping |
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| Institution: | LI Chang-gui,LV Zhi-ping(Institute of Surveying and Mapping,Information Engineering University,Zhengzhou 450052,China) |
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| Abstract: | Group adjustment is a common computation model.It is a decomposition of large-scale adjusment,which is distributable in itself and as a result suitable for grid computing.The paper first analyzed the equation of group adjustment and decomposed it into several sub-computations in different steps and levels.Then the paper put forward the concepts of sub-computation service and sub-computation proxy,explained the concepts of elementary sub-computations,aggregate sub-computations and workflow,and finally gave a... |
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| Keywords: | group adjustment Grid Computing sub-computation workflow |
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