An MPI implementation of the SPAI preconditioner on the T3E

被引:24
作者
Barnard, ST
Bernardo, LM [1 ]
Simon, HD
机构
[1] Lawrence Berkeley Lab, Berkeley, CA 94720 USA
[2] NASA, Ames Res Ctr, Moffett Field, CA 94035 USA
关键词
D O I
10.1177/109434209901300202
中图分类号
TP3 [计算技术、计算机技术];
学科分类号
0812 ;
摘要
The authors describe and test spai_1.1, a parallel MPI implementation of the sparse approximate inverse (SPAI) preconditioner. They show that SPAI can be very effective for solving a set of very large and difficult problems on a Gray T3E. The results clearly show the value of SPAI (and approximate inverse methods in general) as the Viable alternative to ILU-type methods when facing very large and difficult problems. The authors strengthen this conclusion by showing that spai_1.1 also has very good scaling behavior.
引用
收藏
页码:107 / 123
页数:17
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