Parallel computing in prestack viscoacoustic pseudospectral modeling

How Wei Chen, Yan Cheun Wang

研究成果: 會議貢獻類型會議論文同行評審

1 引文 斯高帕斯(Scopus)

摘要

A parallel computing of viscoacoustic numerical modeling algorithm is developed, tested and implemented for two-dimensional media. The loss mechanism is simulated according to a standard linear solid model. Numerical solution of viscoacoustic responses is obtained by solving two-dimensional heterogeneous viscoacoustic wave equations. The model is parameterized through stress, strain relaxation times, density, relaxed and unrelaxed modulus, and velocity. On constructing P- and S- velocity, Qp, and Qs models separately, attenuated and de-coupled propagating P- and S- wave fields are synthesized. Implementation of a pseudospectral technique with staggered grid provides a more general and more accurate description of wave propagation phenomena. A near perfect linear speedup can be achieved on a distributed-memory multiple-processor system. The algorithm allows several nodes to be used to solve a single large problem at high computation to communication ratios.

原文???core.languages.en_GB???
頁面1289-1292
頁數4
DOIs
出版狀態已出版 - 1995
事件1995 Society of Exploration Geophysicists Annual Meeting, SEG 1995 - Houston, United States
持續時間: 8 10月 199513 10月 1995

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???event.eventtypes.event.conference???1995 Society of Exploration Geophysicists Annual Meeting, SEG 1995
國家/地區United States
城市Houston
期間8/10/9513/10/95

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