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

摘要

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.