A Parallel Tool for Numerical Approximation of 3D Electromagnetic Surveys in Geophysics

Authors

  • Octavio Castillo Reyes Barcelona Supercomputing Center
  • Josep de la Puente Barcelona Supercomputing Center
  • David Modesto Barcelona Supercomputing Center
  • Vladimir Puzyrev Barcelona Supercomputing Center
  • José Maria Cela Barcelona Supercomputing Center

DOI:

https://doi.org/10.13053/cys-20-1-2364

Keywords:

Parallel computing, geophysics, edge-based finite element, CSEM, numerical solutions.

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.

Author Biographies

Octavio Castillo Reyes, Barcelona Supercomputing Center

received his bachelor degree from the Xalapa Institute of Technology, Mexico. He is currently studying PhD in Computer Architecture at the Polytechnic University of Catalonia (Barcelona, Spain). He develops his research work in the Department of Computer Applications in Science & Engineering (CASE) of the Barcelona Supercomputing Center -National Supercomputing Center (BSC-CNS).

Josep de la Puente, Barcelona Supercomputing Center

is a senior researcher at BSC, leader of the geophysical efforts at the Repsol-BSC Research Center, and expert on Discontinuous Galerkin methods for computational seismology using HPC platforms.

David Modesto, Barcelona Supercomputing Center

is a postdoc junior researcher at BSC. David Modesto received his PhD on Civil Engineering with honors from the Polytechnic University of Catalonia. His main research topics are real-time generation of numerical solutions for wave agitation problems in harbors, reduced order algorithms with user friendly interactions, acceleration of processes related to coastal applications, and development of new harbor models.

Vladimir Puzyrev, Barcelona Supercomputing Center

is a senior researcher at BSC who received awards from the National Academy of Sciences of Ukraine for his scientific work, and is currently developing massively parallel modelling and inversion algorithms for on surface resistivity measurements, namely, controlled-source electromagnetics and magnetotellurics.

José Maria Cela, Barcelona Supercomputing Center

received his PhD in Telecommunications Engineering from the Polytechnic University of Catalonia. He is associate professor in the Polytechnic University of Catalonia. Currently he is the director of the Department of Computer Applications in Science & Engineering (CASE) of the Barcelona Supercomputing Center - National Supercomputing Center (BSC-CNS).

Downloads

Published

2016-03-31

Issue

Vol. 20 No. 1 (2016): Thematic Issue: Topic Trends in Computing Research (Guest Editor: Claudia P. Ayala)

Section

Articles

License 

Hereby I transfer exclusively to the Journal "Computación y 
Sistemas", published by the Computing Research Center (CIC-IPN),
the Copyright of the aforementioned paper. I also accept that these 
rights will not be transferred to any other publication, in any other 
format, language or other existing means of developing.
I certify that the paper has not been previously disclosed or simultaneo
usly submitted to any other publication, and that it does not contain 
material whose publication would violate the Copyright or other 
proprietary rights of any person, company or institution. I certify that 
I have the permission from the institution or company where I work or 
study to publish this work.
The representative author accepts the responsibility for the publication
of this paper on behalf of each and every one of the authors. 
This transfer is subject to the following conditions:
  • The authors retain all ownership rights (such as patent rights) of this work, except for the publishing rights transferred to the CIC, through this document.
  • Authors retain the right to publish the work in whole or in part in any book they are the authors or publishers. They can also make use of this work in conferences, courses, personal web pages, and so on.
  • Authors may include working as part of his thesis, for non-profit distribution only.