气候变化领域集成服务门户(CCPortal): Accelerating POCS interpolation of 3D irregular seismic data with Graphics Processing Units

CCPortal

DOI	10.1016/j.cageo.2010.03.012
	Accelerating POCS interpolation of 3D irregular seismic data with Graphics Processing Units
	Wang, Shu-Qin; Gao, Xing; Yao, Zhen-Xing
通讯作者	Gao, X (通讯作者)
发表日期	2010
ISSN	0098-3004
EISSN	1873-7803
起始页码	1292
结束页码	1300
卷号	36 期号:10
英文摘要	Seismic trace interpolation is necessary for high-resolution imaging when the acquired data are not adequate or when some traces are missing. Projection-onto-convex-sets (POCS) interpolation can gradually recover missing traces with an iterative algorithm, but its computational cost in a 3D CPU-based implementation is too high for practical applications. We present a computing scheme to speedup 3D POCS interpolation with graphics processing units (GPUs). We accelerate the most time-consuming part of the 3D POCS algorithm (i.e. Fourier transforms) by taking advantage of a CPU-based Fourier transform library. Other parts are fine-tuned to maximize the utilization of CPU computing resources. We upload the whole input data set to the global memory of the GPUs and reuse it until the final result is obtained. This can avoid low-bandwidth data transfer between CPU and GPUs. We minimize the number of intermediate 3D arrays to save GPU global memory by optimizing the algorithm implementation. This allows us to handle a much larger input data set. When reducing the runtime of our GPU implementation, the coalescing of global memory access and the 3D CUFFT library provides us with the greatest performance improvements. Numerical results show that our scheme is 3-29 x times faster than the optimized CPU-based implementation, depending on the size of 3D data set. Our CPU computing scheme allows a significant reduction of computational cost and would facilitate 3D POCS interpolation for practical applications. (C) 2010 Elsevier Ltd. All rights reserved.
关键词	GPU
英文关键词	POCS; Graphics processing unit; Irregular seismic data; Interpolation; Fourier transform
语种	英语
WOS研究方向	Computer Science ; Geology
WOS类目	Computer Science, Interdisciplinary Applications ; Geosciences, Multidisciplinary
WOS记录号	WOS:000283042600010
来源期刊	COMPUTERS & GEOSCIENCES
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/257795
推荐引用方式 GB/T 7714	Wang, Shu-Qin,Gao, Xing,Yao, Zhen-Xing. Accelerating POCS interpolation of 3D irregular seismic data with Graphics Processing Units[J]. 中国科学院青藏高原研究所,2010,36(10).
APA	Wang, Shu-Qin,Gao, Xing,&Yao, Zhen-Xing.(2010).Accelerating POCS interpolation of 3D irregular seismic data with Graphics Processing Units.COMPUTERS & GEOSCIENCES,36(10).
MLA	Wang, Shu-Qin,et al."Accelerating POCS interpolation of 3D irregular seismic data with Graphics Processing Units".COMPUTERS & GEOSCIENCES 36.10(2010).