Accelerating 3D Fourier migration with graphics processing units

doi:10.1190/1.3223186

	Accelerating 3D Fourier migration with graphics processing units
	Zhang, Jin-Hai 1; Wang, Shu-Qin 1,2; Yao, Zhen-Xing 1
刊名	GEOPHYSICS
	2009-11-01
卷号	74 期号:6 页码:WCA129-WCA139
ISSN号	0016-8033
DOI	10.1190/1.3223186
文献子类	Article
英文摘要	Computational cost is a major factor that inhibits the practical application of 3D depth migration. We have developed a fast parallel scheme to speed up 3D wave-equation depth migration on a parallel computing device, i.e., on graphics processing units (GPUs). The third-order optimized generalized-screen propagator is used to take advantage of the built-in software implementation of the fast Fourier transform. The propagator is coded as a sequence of kernels that can be called from the computer host for each frequency component. Moving the wavefield extrapolation for each depth level to the GPUs allows handling a large 3D velocity model, but this scheme can be speeded up to a limited degree over the CPU implementation because of the low-bandwidth data transfer between host and device. We have created further speedup in this extrapolation scheme by minimizing the low-bandwidth data transfer, which is done by storing the 3D velocity model and imaged data in the device memory, and reducing half the memory demand by compressing the 3D velocity model and imaged data using integer arrays instead of float arrays. By incorporating a 2D tapered function, time-shift propagator, and scaling of the inverse Fourier transform into a compact kernel, the Computation time is reduced greatly. Three-dimensional impulse responses and synthetic data examples have demonstrated that the GPU-based Fourier migration typically is 25 to 40 times faster than the CPU-based implementation. It enables us to image complex media using 3D depth migration with little concern for Computational cost. The macrovelocity model can be built in a much shorter turnaround time.
WOS关键词	FINITE-DIFFERENCE MIGRATION ; COMPLEX-SCREEN METHOD ; PLUS INTERPOLATION ; ELASTIC-WAVE ; DEPTH MIGRATION ; MEDIA ; GPU ; PROPAGATION
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	SOC EXPLORATION GEOPHYSICISTS
WOS记录号	WOS:000273896600013
资助机构	Chinese Academy of Sciences(KZCX2-YW-101) ; Chinese Academy of Sciences(KZCX2-YW-101) ; National Major Project of China(2008ZX05008-006) ; National Major Project of China(2008ZX05008-006) ; Open Fund of Key Laboratory of Geo-detection(GDL0702) ; Open Fund of Key Laboratory of Geo-detection(GDL0702) ; Ministry of Education ; Ministry of Education ; Chinese Academy of Sciences(KZCX2-YW-101) ; Chinese Academy of Sciences(KZCX2-YW-101) ; National Major Project of China(2008ZX05008-006) ; National Major Project of China(2008ZX05008-006) ; Open Fund of Key Laboratory of Geo-detection(GDL0702) ; Open Fund of Key Laboratory of Geo-detection(GDL0702) ; Ministry of Education ; Ministry of Education ; Chinese Academy of Sciences(KZCX2-YW-101) ; Chinese Academy of Sciences(KZCX2-YW-101) ; National Major Project of China(2008ZX05008-006) ; National Major Project of China(2008ZX05008-006) ; Open Fund of Key Laboratory of Geo-detection(GDL0702) ; Open Fund of Key Laboratory of Geo-detection(GDL0702) ; Ministry of Education ; Ministry of Education ; Chinese Academy of Sciences(KZCX2-YW-101) ; Chinese Academy of Sciences(KZCX2-YW-101) ; National Major Project of China(2008ZX05008-006) ; National Major Project of China(2008ZX05008-006) ; Open Fund of Key Laboratory of Geo-detection(GDL0702) ; Open Fund of Key Laboratory of Geo-detection(GDL0702) ; Ministry of Education ; Ministry of Education
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/71794]
专题	中国科学院地质与地球物理研究所
通讯作者	Zhang, Jin-Hai
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Beijing, Peoples R China 2.Cent Univ Nationalities, Inst Informat Engn, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Jin-Hai,Wang, Shu-Qin,Yao, Zhen-Xing. Accelerating 3D Fourier migration with graphics processing units[J]. GEOPHYSICS,2009,74(6):WCA129-WCA139.
APA	Zhang, Jin-Hai,Wang, Shu-Qin,&Yao, Zhen-Xing.(2009).Accelerating 3D Fourier migration with graphics processing units.GEOPHYSICS,74(6),WCA129-WCA139.
MLA	Zhang, Jin-Hai,et al."Accelerating 3D Fourier migration with graphics processing units".GEOPHYSICS 74.6(2009):WCA129-WCA139.