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《Chinese Journal of Geophysics》 2010-12
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Accelerating seismic modeling with staggered-grid Fourier Pseudo-spectral differentiation matrix operator method on graphics processing unit

LONG Gui-Hua~(1,2), LI Xiao-Fan~2, JIANG Dong-Hui~3 1 Shenzhen Institutes of Advanced Technology , Chinese Academy of Sciences, Shenzhen 518055, China 2 Institute of Geology and Geophysics , Chinese Academy of Sciences , Beijing 100029, China 3 Institute of SINOPEC Shanghai Offshore Oil & Gas Company , Shanghai 200120, China  
As a crucial part of high-resolution waveform inversion and reverse time migration, seismic modeling demands a high efficiency of computation. The general-purpose GPU computing technology provides a fundamental basis as for GPU was naturally designed with data parallelism. By virtue of staggered-grid Fourier pseudo-spectral differentiation matrix operator, solving wave equation can be easily implemented on GPU by matrix multiplication. In large-scale two-dimensional wavefield computation, optimized single GPU forward seismic modeling can achieve at least 100x faster than that of single CPU using only one core. The high speedup of GPU/CPU implementation enables us to quickly recognize seismic events of the reflectors of different layers in common shot profile, which is helpful for optimizing the acquisition configuration in field work.
【Fund】: 国家高技术研究发展计划(863计划)(2007AA12Z164);; 国家自然科学基金项目(40874024);; 广东省自然科学基金项目(10478922035 X00491)联合资助
【CateGory Index】: P631.4
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【References】
Chinese Journal Full-text Database 2 Hits
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【Co-references】
Chinese Journal Full-text Database 10 Hits
1 DAI Zhi-yang~1 ,Sun Jian-guo~2,Zha Xian-jie~1 (1.College of Earth and Space Sciences, University of Science and Technology of China, Hefei230026,China; 2. College of GeoExploration Science and Technology, Jilin University, Changchun130026,China);Seismic Wave Field Modeling with Convolutional Differentiator Algorithm[J];Journal of Jiling University (Earth Science Edition);2005-04
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10 LONG Gui-Hua1,2,LI Xiao-Fan1,ZHANG Mei-Gen1 1 Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing 100029,China2 Graduate University,Chinese Academy of Sciences,Beijing 100049,China;The application of staggered-grid Fourier pseudospectral differentiation operator in wavefield modeling[J];Chinese Journal of Geophysics;2009-01
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