Orderings for Factorized Sparse Approximate Inverse Preconditioners
نویسندگان
چکیده
منابع مشابه
Orderings for Factorized Sparse Approximate Inverse Preconditioners
The innuence of reorderings on the performance of factorized sparse approximate inverse preconditioners is considered. Some theoretical results on the eeect of orderings on the ll-in and decay behavior of the inverse factors of a sparse matrix are presented. It is shown experimentally that certain reorderings, like Minimum Degree and Nested Dissection, can be very beneecial both in the precondi...
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ژورنال
عنوان ژورنال: SIAM Journal on Scientific Computing
سال: 2000
ISSN: 1064-8275,1095-7197
DOI: 10.1137/s1064827598339372