A Hybrid Parallel Preconditioner Using Incomplete Cholesky Factorization and Sparse Approximate Inversion

نویسندگان

  • Keita Teranishi
  • Padma Raghavan
چکیده

We have recently developed a preconditioning scheme that can be viewed as a hybrid of incomplete factorization and sparse approximate inversion methods. This hybrid scheme attempts to deliver the strengths of both types of preconditioning schemes to accelerate the convergence of Conjugate Gradients (CG) on multiprocessors. We provide an overview of our algorithm and report on initial results for some large sparse linear systems.

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تاریخ انتشار 2006