CAJ | 학술논문

水文模拟计算具有数据量较大、过程连续性较强的特点。随着数据采集技术的不断发展，大范围、高分辨率的地形数据使得传统串行算法难以满足性能要求，而并行化水文分析算法研究受到越来越多的关注。本文在对GIS空间分析算法并行化进行分析的基础上，对主要并行计算框架进行了对比，并选用OpenMP框架对水文分析若干过程进行了并行化算法的研究和实践。实验结果表明，基于OpenMP框架的并行化水文分析算法是在多核平台下进行性能优化的有效手段。
수문모의계산구유수거량교대、과정련속성교강적특점。수착수거채집기술적불단발전，대범위、고분변솔적지형수거사득전통천행산법난이만족성능요구，이병행화수문분석산법연구수도월래월다적관주。본문재대GIS공간분석산법병행화진행분석적기출상，대주요병행계산광가진행료대비，병선용OpenMP광가대수문분석약간과정진행료병행화산법적연구화실천。실험결과표명，기우OpenMP광가적병행화수문분석산법시재다핵평태하진행성능우화적유효수단。
Hydrological simulation has the characteristics of strong continuity in the calculation process with a large amount of calculat -ed data.The large regional, high -resolution terrain data,along with the continuous development of data acquisition technology , makes the traditional serial algorithm difficult to meet the performance requirements , so the hydrologic analysis parallel algorithm study is getting more and more attention .The paper analyzes the characteristics of the GIS spatial analysis parallel algorithm , compares the mainstream parallel computing frameworks , and selects the OpenMP framework for the research and implementation of hydrologic anal -ysis parallel algorithm .Experimental results show that the hydrologic analysis parallel algorithm based on OpenMP framework is an ef -fective approach of performance optimization in multi -core platforms .