Network Parallel Computing of Regional Soil and Water Erosion Model

ZHANG Hong-ming; YANG Qin-ke; LI Rui; LIU Qing-rui; WANG Chun-mei; DU Zhi-qian

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Network Parallel Computing of Regional Soil and Water Erosion Model

- Network Parallel Computing of Regional Soil and Water Erosion Model
- Bulletin of Soiland Water Conservation Vol. 30, Issue 1, Pages: 141-144(2011)
- 作者机构：
  
  1. 西北农林科技大学信息工程学院,陕西,西安,712100
  2. 西北大学城市与环境学院,陕西,西安,710069
  3. 中国科学院水利部水土保持研究所,陕西,西安,712100
  4. 中国西安人才市场,陕西,西安,710061
- 作者简介：
- 基金信息：
- DOI：
  CLC： P98
- Published：2011
- 稿件说明：
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ZHANG Hong-ming, YANG Qin-ke, LI Rui, et al. Network Parallel Computing of Regional Soil and Water Erosion Model[J]. Bulletin of Soiland Water Conservation, 2011, 30(1): 141-144.
DOI：

ZHANG Hong-ming, YANG Qin-ke, LI Rui, et al. Network Parallel Computing of Regional Soil and Water Erosion Model[J]. Bulletin of Soiland Water Conservation, 2011, 30(1): 141-144. DOI：

摘要

区域水土流失模型为区域尺度土壤侵蚀模型研究奠定了基础

可用于区域降雨产流产沙的预报

为区域水土保持和环境问题的宏观决策提供支持.目前该模型在实际运行存在计算速度慢

效率低

难以进行大尺度的快捷运算等问题.对模型过程进行了分析

采用网络并行计算方法及相应的任务调度规则来提高模型运行效率.结果表明

模型的运行时间大幅减少

计算效率显著提升

该方法为解决海量数据的GIS模型计算问题提供了一个可行方案.

Abstract

As the foundation for regional soil erosion model

Regional Soil Lose Model can be used for regional rainfall runoff and sediment forecasting

soil and water conservation and environmental issues to support regional macro decision-making.Currently

the model cannot be used effectively for large areas due to its slow computing speed.Aiming at the problems

this paper analyzed the model process and incorporated network parallel computing methodology and corresponding task scheduling rules into the model.The results show that the running time greatly reduced in the revised model and the computational efficiency significantly improved.This method provides a way to solve the problem caused by huge amount of data in GIS model with a feasible scheme.

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