Advances in multigrid solution of 3D forward mCSEM problems

N. Yavich, C. Scholl

Research output: Contribution to conferencePaperpeer-review

6 Citations (Scopus)

Abstract

In this note we concentrate on iterative solution of the linear algebraic systems resulting from the finite-difference discretization of 3D forward mCSEM simulation. We review and test a recently developed multigrid preconditioner to an iterative solver and introduce some changes into the smoothing scheme of the multigrid algorithm. We substitute the originally used symmetric multiplicative Schwarz smoothing scheme with that of additive Schwarz. We also found an approximately optimal value for the scaling factor needed for additive Schwarz smoothing. Our changes result in a faster and naturally parallelizable algorithm.

Original languageEnglish
DOIs
Publication statusPublished - 2012
Externally publishedYes
EventSt. Petersburg 2012 International Conference on Geosciences: Making the Most of the Earth's Resources - Saint Petersburg, Russian Federation
Duration: 2 Apr 20125 Apr 2012

Conference

ConferenceSt. Petersburg 2012 International Conference on Geosciences: Making the Most of the Earth's Resources
Country/TerritoryRussian Federation
CitySaint Petersburg
Period2/04/125/04/12

Fingerprint

Dive into the research topics of 'Advances in multigrid solution of 3D forward mCSEM problems'. Together they form a unique fingerprint.

Cite this