Application of the FETI method to ASCI problems - scalability results on 1000 processors and discussion of highly heterogeneous problems

Authors
Bhardwaj, M Day, D Farhat, C Lesoinne, M Pierson, K Rixen, D
Citation
M. Bhardwaj et al., Application of the FETI method to ASCI problems - scalability results on 1000 processors and discussion of highly heterogeneous problems, INT J NUM M, 47(1-3), 2000, pp. 513-535
Citations number
32
Categorie Soggetti
Engineering Mathematics
Journal title
INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING
ISSN journal
00295981 → ACNP
Volume
47
Issue
1-3
Year of publication
2000
Pages
513 - 535
Database
ISI
SICI code
0029-5981(20000110)47:1-3<513:AOTFMT>2.0.ZU;2-I
Abstract
We report on the application of the one-level FETI method to die solution o f a class of structural problems associated with the Department of Energy's Accelerated Strategic Computing Initiative (ASCI). We focus on numerical a nd parallel scalability issues, and discuss the treatment by PETI of severe structural heterogeneities. We also report on preliminary performance resu lts obtained on the ASCI option Red supercomputer configured with as many a s 1000 processors, for problems with as many as 5 million degrees of freedo m. Copyright (C) 2000 John Wiley & Sons, Ltd.