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Optimization of a precise integration method for seismic modeling based on graphic processing unit |
Jingyu Li1, Genyang Tang2, Tianyue Hu1 |
1 School of Earth and Space Sciences, Peking University, Beijing 100871, China
2 Department of Earth Sciences, Cambridge University, Cambridge CB2 3EQ, United Kingdom |
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Abstract General purpose graphic processing unit (GPU) calculation technology is gradually widely used in various fields. Its mode of single instruction, multiple threads is capable of seismic numerical simulation which has a huge quantity of data and calculation steps. In this study, we introduce a GPU-based parallel calculation method of a precise integration method (PIM) for seismic forward modeling. Compared with CPU single-core calculation, GPU parallel calculating perfectly keeps the features of PIM, which has small bandwidth, high accuracy and capability of modeling complex substructures, and GPU calculation brings high computational efficiency, which means that high-performing GPU parallel calculation can make seismic forward modeling closer to real seismic records.
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Received: 01 June 2010
Published: 10 August 2010
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Fund:the National Natural Science Foundation of China (Nos. 40974066 and 40821062) and by National Basic Research Program of China (No. 2007CB209602) |
Corresponding Authors:
Jingyu Li
E-mail: tianyue@pku.edu.cn
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