3D inversion of marine magnetotelluric data on massively parallel computer

2009 ◽  
Author(s):  
Michael S. Zhdanov ◽  
Le Wan ◽  
Arun Kumar ◽  
Alex Gribenko ◽  
Martin Cuma ◽  
...  
Keyword(s):  
Parallel Computer ◽  
Massively Parallel ◽  
3D Inversion ◽  
Magnetotelluric Data

Large-scale 3D inversion of marine magnetotelluric data: Case study from the Gemini prospect, Gulf of Mexico

Geophysics ◽  
2011 ◽  
Vol 76 (1) ◽  
pp. F77-F87 ◽  
Author(s):  
Michael S. Zhdanov ◽  
Le Wan ◽  
Alexander Gribenko ◽  
Martin Čuma ◽  
Kerry Key ◽  
...  
Keyword(s):  
Gulf Of Mexico ◽  
Large Scale ◽  
Three Dimensional ◽  
Integral Equation Method ◽  
Computer Code ◽  
Hydrocarbon Exploration ◽  
Parallel Computer ◽  
3D Inversion ◽  
Magnetotelluric Data ◽  
Geoelectrical Structures

Three-dimensional magnetotelluric (MT) inversion is an emerging technique for offshore hydrocarbon exploration. We have developed a new approach to the 3D inversion of MT data, based on the integral equation method. The Tikhonov regularization and physical constraint have been used to obtain a stable and reasonable solution of the inverse problem. The method is implemented in a fully parallel computer code. We have applied the developed method and software for the inversion of marine MT data collected by the Scripps Institution of Oceanography (SIO) in the Gemini prospect, Gulf of Mexico. The inversion domain was discretized into 1.6 million cells. It took nine hours to complete 51 iterations on the 832-processor cluster with a final misfit between the observed and predicted data of 6.2%. The inversion results reveal a resistive salt structure, which is confirmed by a comparison with the seismic data. These inversion results demonstrate that resistive geoelectrical structures like salt domes can be mapped with reasonable accuracy using the 3D inversion of marine MT data.

scholarly journals Midimew Connected Torus Network for Next Generation Massively Parallel Computer System

2021 ◽  
Vol 179 ◽  
pp. 590-597
Author(s):  
Maryam Manaa Al-Shammari ◽  
Asrar Haque ◽  
M.M. Hafizur Rahman
Keyword(s):  
Computer System ◽  
Parallel Computer ◽  
Massively Parallel ◽  
Next Generation ◽  
Torus Network

scholarly journals Massively parallel 3D inversion of gravity and gravity gradiometry data

Preview ◽  
2011 ◽  
Vol 2011 (152) ◽  
pp. 29-34 ◽  
Author(s):  
Glenn Wilson ◽  
Martin Čuma ◽  
Michael S. Zhdanov
Keyword(s):  
Massively Parallel ◽  
Gravity Gradiometry ◽  
3D Inversion

Crack Growth and Propagation in Metallic Alloys

1995 ◽  
Vol 409 ◽  
Author(s):  
W. C. Morrey ◽  
L. T. Wille
Keyword(s):  
Large Scale ◽  
Critical Strain ◽  
Cleavage Plane ◽  
Crack Tip ◽  
Metallic Alloys ◽  
Propagation Direction ◽  
Dynamics Simulation ◽  
Parallel Computer ◽  
Massively Parallel ◽  
Tip Position

AbstractUsing large-scale molecular dynamics simulation on a massively parallel computer, we have studied the initiation of cracking in a Monel-like alloy of Cu-Ni. In a low temperature 2D sample, fracture from a notch starts at a little beyond 2.5% critical strain when the propagation direction is perpendicular to a cleavage plane. We discuss a method of characterizing crack tip position using a measure of area around the crack tip.

Error-free optical inter-node connection for the massively parallel computer

1998 ◽  
Vol 10 (1) ◽  
pp. 147-149 ◽  
Author(s):  
S. Nishimura ◽  
H. Inoue ◽  
S. Hanatani ◽  
H. Matsuoka ◽  
T. Yokota
Keyword(s):  
Parallel Computer ◽  
Massively Parallel
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