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Article #15Re: Help: parallel LU decomposition
From: Patrick STOCLET - 44272427
Date: Sat, 27 Jan 1996 00:00
Date: Sat, 27 Jan 1996 00:00
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1214 bytes
hello, I had a similar problem also with a CM5 elliptic pde whith coefficients jumps by multigrid . 1) for building the LU decomposition in SIMD i solve it as a non linear problem ( fixed point method will do if it is done only once ) 2) to apply the preconditionner i use the truncated neumann method to solve for L and U ( in my case 2 iterations are enough ). if you need more info send me an e-mail best regards patrick stoclet
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 102daf,e4b2570511d4bb92 X-Google-Attributes: gid102daf,public X-Google-Thread: 106aa4,e4b2570511d4bb92 X-Google-Attributes: gid106aa4,public X-Google-Thread: 10acec,e4b2570511d4bb92 X-Google-Attributes: gid10acec,public From: stoclet@aquarium-2.NoSubdomain.NoDomain.CIS.YALE.EDU (Patrick STOCLET - 44272427) Subject: Re: Help: parallel LU decomposition Date: 1996/01/27 Message-ID: <4ednkr$edu@vishnu.jussieu.fr> X-Deja-AN: 136697388 distribution: world references: <4ebgtm$l8n@frodo.rutgers.edu> organization: Universites Paris VI/Paris VII - France keywords: LU, parallel, preconditioning newsgroups: sci.physics.computational.fluid-dynamics,comp.parallel,fj.comp.parallel