Journal
FUTURE GENERATION COMPUTER SYSTEMS
Volume 17, Issue 8, Pages 925-932Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0167-739X(01)00034-6
Keywords
parallel incomplete factorization; preconditioned conjugate gradient; spectral condition number
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Incomplete LU (ILU) factorizations are popular preconditioning techniques for solving large Linear systems that arise in scientific computations. We propose a (generalized) domain decomposition-based approach that leads to almost perfect speed-up with respect to standard ILU. Experimental results and theoretical spectral condition number are reported for two-dimensional problems. (C) 2001 Elsevier Science B.V. All rights reserved.
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