3D parallel elastodynamic modeling of large subduction earthquakes

被引：0
|
作者：
Cabrera, Eduardo [1 ]
Chavez, Mario [2 ,3 ]
Madariaga, Raul [3 ]
Perea, Narciso [2 ]
Frisenda, Marco [3 ]
机构：
[1] Univ Nacl Autonoma Mexico, DGSCA, Supercomp Dept, CU, Mexico City 04510, DF, Mexico
[2] Univ Nacl Autonoma Mexico, CU, Inst Engn, Mexico City 04510, DF, Mexico
[3] CNRS ENS, Geol Lab, Paris, France
来源：
RECENT ADVANCES IN PARALLEL VIRTUAL MACHINE AND MESSAGE PASSING INTERFACE | 2007年 / 4757卷
关键词：
elastodynamic; modeling; earthquakes; parallel computing;
D O I：
暂无
中图分类号：
TP31 [计算机软件];
学科分类号：
081202 ; 0835 ;
摘要：
The 3D finite difference modeling of the wave propagation of M > 8 earthquakes in subduction zones in a realistic-size earth is very computationally intensive task. We use a parallel finite difference code that uses second order operators in time and fourth order differences in space on a staggered grid. We develop an efficient parallel program using message passing interface (MPI) and a kinematic earthquake rupture process. We achieve an efficiency of 94% with 128 (and 85% extrapolating to 1,024) processors on a dual core platform. Satisfactory results for a large subduction earthquake that occurred in Mexico in 1985 are given.
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页码：373 / +
页数：2
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