Takeshi Iwashita
Academic Center for Computing and Media Studies, Kyoto University
"Easy Comparison Way of Orderings for Parallel ILU Preconditioned
Iterative Solver"
Abstract:
In Incomplete LU (ILU) preconditioning, orderings affect the effect of
preconditioning. The author recently proposed a simple evaluation way for
the ILU preconditioning effect. The evaluationindex, which has a simple
relationship with the matrix norm of the remainder matrix, is easily computed
without additional memory requirement. Numerical tests examines a relationship
between the evaluation index and a convergence rate of the preconditioned
iterative method.