【摘要】 新近发展的图形处理器(GPU,Graphic Processing Unit)通用计算技术,现已日趋实用成型,并获得诸多应用领域的广泛关注.对油气勘探专项资料处理技术的运用而言,概因GPU与中央处理器(CPU)的计算性能的甚大差异,致使GPU这一通用计算技术在石油工业中的应用研究正在有效开展.本文仅借助于油气勘探中广泛使用的叠前时间偏移,旨在于扼要阐明其基于GPU应用的有效性;文中还提出一种利用GPU实现地震叠前时间偏移的软件构件方法,并针对非对称走时叠前时间偏移所拓展的应用软件提供一种具体实现架构.与以往用个人计算机(PC,Personal Computer)或者PC集群所用的叠前时间偏移相比,本文方法可甚大地提高计算效率,从而在石油物探资料处理中可显著地节约计算成本和维护费用.文中实际例证也表明,基于GPU进行高性能并行计算,当是适应目前石油工业中大规模计算需求的一个重要发展途径.更多还原

【Abstract】 General Purpose GPU technology has being becoming mature,it has been applied in many industry area.However,due to the differences of computing feather between CPU and GPU,the study of GPU in petroleum industry application should be developed effectively.In this article,we introduce the General Purpose GPU technology and propose a method to realize pre-stack time migration software on GPU.Compared with traditional pre-stack time migration running on Personal Computer(PC)or PC-Cluster,the new programming method greatly improves computational efficiency,and then dramatically save power and maintenances cost.the actual tests in real seismic data illustrate that high performance computing based on General Purpose GPU technology(GPGPU)is an important direction of developments to meet the requirements of large scale computing in petroleum industry.更多还原