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
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
摘要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.
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.
基金资助:the National Natural Science Foundation of China (Nos. 40974066 and 40821062) and by National Basic Research Program of China (No. 2007CB209602)
通讯作者:
Jingyu Li
E-mail: tianyue@pku.edu.cn
引用本文:
Jingyu Li, Genyang Tang, Tianyue Hu. Optimization of a precise integration method for seismic modeling based on graphic processing unit[J]. 《地震学报》英文版, 2010, 23(4): 387-393.
Jingyu Li, Genyang Tang, Tianyue Hu. Optimization of a precise integration method for seismic modeling based on graphic processing unit. Earthquake Science, 2010, 23(4): 387-393.
