基于CPU/GPU异构平台的叠前逆时偏移成像系统

Pre-stack Reverse Time Migration Imaging System Based on CPU/GPU Heterogeneous Platform

针对目前地震资料偏移成像过程中代码复杂分散、可移植性差和可视化操作弱等问题,结合叠前逆时偏移业务需求,研究了CPU/GPU协同并行计算技术优化叠前逆时偏移成像算法,设计了逆时偏移系统流程与功能,开发了一套基于CPU/GPU异构平台的叠前逆时偏移成像系统。利用自设模型和传统模型数据对系统进行测试,测试结果表明系统操作方便可行,运行效果良好,能够有效的对复杂构造地质体精确成像。

In consideration of the problems of complex and dispersive code,poor portability and weak visualized operations in migration imaging of seismic data.This paper combines the business requirements of pre-stack reverse time migration,the CPU/GPU cooperative parallel computing technology is studied for optimizing the pre-stack reverse time migration imaging algorithm,designing the process and function of reverse time migration system,apre-stack reverse time migration imaging system is developed based on CPU/GPU heterogeneous platform.The data of self-set model and traditional model are used to test the system,the test results show that the system is easy to operate,the operation effect is well,and can accurately image the complex geological body.