Performance of Parallel Linear Iterative Preconditioners and Solvers from a Finite Element Model of Woody Vegetation on Levees

Abstract

This research provides the results of testing common Krylov subspace linear iterative solvers and preconditioners in a parallel environment using the Portable, Extensible Toolkit for Scientific Computation (PETSc) software on extremely heterogeneous, unsaturated flow problems. A three-dimensional (3-D) model of a levee with a root zone embedded at the toe served as the test problem, and the runs were done on the Cray XE6 with 128 cores.

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Document Details

Document Type
Technical Report
Publication Date
Jun 17, 2012
Accession Number
ADA563553

Entities

People

  • Fred T. Tracy
  • Hung V. Nguyen
  • Maureen K. Corcoran

Organizations

  • Engineer Research and Development Center

Tags

DTIC Thesaurus Topics

  • Computations
  • Conductivity
  • Electronic Mail
  • Engineers
  • Environment
  • Equations
  • Finite Element Analysis
  • Geometry
  • High Performance Computing
  • Information Operations
  • Information Systems
  • Iterations
  • Linear Systems
  • Three Dimensional
  • Two Dimensional
  • Vegetation
  • Water Resources

Readers

  • Geotechnical Engineering.
  • Linear Algebra
  • Parallel and Distributed Computing.