Aparallel tool for numerical approximation of 3D electromagnetic surveys in geophysics



Document title: Aparallel tool for numerical approximation of 3D electromagnetic surveys in geophysics
Journal: Computación y sistemas
Database: PERIÓDICA
System number: 000408046
ISSN: 1405-5546
Authors: 1
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1
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Institutions: 1Centro Nacional de Supercomputación, Barcelona. España
Year:
Season: Ene-Mar
Volumen: 20
Number: 1
Pages: 29-39
Country: México
Language: Inglés
Document type: Artículo
Approach: Analítico, aplicado
English abstract This paper presents an edge-based parallel code for the data computation that arises when applying one of the most popular electromagnetic methods in geophysics, namely, the controlled-source electromagnetic method (CSEM). The computational implementation is based on the linear Edge Finite Element Method in 3D isotropic domains because it has the ability to eliminate spurious solutions and is claimed to yield accurate results. The framework structure is able to exploit the embarrassingly-parallel tasks and the advantages of the geometric flexibility as well as to work with three different orientations for the dipole, or excitation source, on unstructured tetrahedral meshes in order to represent complex geological bodies through a local refinement technique. We demonstrate the performance and accuracy of our tool on the Marenostrum supercomputer (Barcelona Supercomputing Center) through scaling tests and canonical tests, respectively
Disciplines: Ciencias de la computación,
Geociencias,
Matemáticas
Keyword: Programación,
Geofísica,
Matemáticas aplicadas,
Computación paralela,
Método electromagnético de fuentes controladas
Keyword: Computer science,
Earth sciences,
Mathematics,
Programming,
Geophysics,
Applied mathematics,
Parallel computing,
Controlled source electro-magnetic method
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