曙光4000A上三维叠前深度偏移并行计算的应用设计  

THE DESIGN FOR PARALLEL COMPUTING OF 3D PRESTACK DEPTH MIGRATION ON DAWNING 4000 A

作　　者：孔祥宁[1] 方伍宝[1] 赵改善[1] 袁联生[1] 

机构地区：[1]中石化石油勘探开发研究院南京石油物探研究所,南京210014

出　　处：《物探化探计算技术》2006年第3期205-210,共6页Computing Techniques For Geophysical and Geochemical Exploration

摘　　要：波动方程叠前深度偏移在地震勘探成像处理方面起着不可替代的作用。随着高性能大规模并行计算机技术的发展,波动方程叠前深度偏移计算在地震勘探中的应用有了很大进步。在波动方程叠前深度偏移处理中,庞大的数据规模与海量计算对计算性能提出了很高的要求。曙光4000A超级计算机系统是我国目前峰值速度最快的商用超级计算机系统,无论是硬件平台建设还是应用软件的配置方面,都具有良好的应用性能。基于该系统设计的三维波动方程叠前深度偏移(炮域)PSDM软件,采用动态负载平衡并行计算模式,具有较高的计算效率,高度的可扩展性和可靠性。Wave equation prestack depth migration(WEPSDM) is one of the most advanced techniques in seismic data imaging processing.With the development of high performance mass parallel computer technique,WEPSDM has been applied in seismic exploration of many complex geology areas.Dawning 4000A is the fastest commercial supercomputer in China,its performance is excellent in hard and soft schemes,and therefore Dawning 4000A can be used in WEPSDM processing which has mass seismic data and complex computations.3D shot domain WEPSDM has run successfully in Dawning 4000A.We use advanced dynamic load balance parallel mode which has very high computing efficiency,expansibility and reliability in the computing.

关 键 词：曙光4000A超级计算机 叠前深度偏移 并行计算 负载平衡 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]