Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 마상백 | - |
dc.date.accessioned | 2021-01-26T01:32:49Z | - |
dc.date.available | 2021-01-26T01:32:49Z | - |
dc.date.issued | 2002-08 | - |
dc.identifier.citation | Proceedings. International Conference on Parallel Processing Workshop, page. 270-273 | en_US |
dc.identifier.isbn | 0-7695-1680-7 | - |
dc.identifier.issn | 1530-2016 | - |
dc.identifier.uri | https://ieeexplore.ieee.org/document/1039740?arnumber=1039740&SID=EBSCO:edseee | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/157479 | - |
dc.description.abstract | Recently iterative algorithms based on the optimization of the Rayleigh quotient have been developed, and a CG scheme for the optimization of the Rayleigh quotient has been proven to be a very attractive and promising technique for large sparse eigenproblems for interior eigenvalues. Ax = /spl lambda/Bx (1) The given matrices A, and B are assumed to be large and sparse, and symmetric and B is further assumed to be positive definite. Also, the method is very amenable to parallel computations. A proper choice of the preconditioner significantly improves the convergence of the CG scheme. We compare the parallel preconditioners for the computation of the interior eigenvalues of a symmetric matrix by CG-type method. The considered preconditioners are ILU(0) in the natural order, ILU(0) in the multi-coloring order, and multi-color block SSOR (symmetric successive overrelaxation). Our results were implemented on the CRAY-T3E with 128 nodes, assuming B = I. The MPI (Message Passing Interface) library was adopted for the interprocessor communications. The test matrices are up to 512/spl times/512 in dimensions and were created from the discretizations of the elliptic PDE. All things considered the MC-BSSOR seems to be most robust preconditioner. | en_US |
dc.language.iso | en_US | en_US |
dc.publisher | IEEE | en_US |
dc.subject | Eigenvalue Problem | en_US |
dc.subject | CG | en_US |
dc.subject | Preconditioning | en_US |
dc.subject | Parallel | en_US |
dc.subject | Multi-Color Block SSOR | en_US |
dc.title | Comparisons of Parallel Preconditioners for the Computation of Interior Eigenvalues by a CG-type Method on a Parallel Computer | en_US |
dc.type | Article | en_US |
dc.identifier.doi | 10.1109/ICPPW.2002.1039740 | - |
dc.contributor.googleauthor | Ma, Sangback | - |
dc.contributor.googleauthor | Jang, Ho-Jong | - |
dc.sector.campus | E | - |
dc.sector.daehak | COLLEGE OF COMPUTING[E] | - |
dc.sector.department | DIVISION OF COMPUTER SCIENCE | - |
dc.identifier.pid | sangback2001 | - |
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