An Automatic Ordering Method for Incomplete Factorization Iterative Solvers
E. D'Azevedo, P.A. Forsyth, Wei-Pai Tang · 1991
The minimum discarded fill (MDF) ordering strategy for incomplete factorization iterative solvers is developed.MDF ordering is demonstrated for several model son-symmetric problems, as well as a wat_rflooding simulation which uses an unstructured grid.The model problems show a three to five fold decrease in ihe number of iterations compared to natural orderings.Greater than twofold improvement was observed _r the waterflooding simulation.