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Article #15

Re: Help: parallel LU decomposition

#15
From: Patrick STOCLET - 44272427
Date: Sat, 27 Jan 1996 00:00
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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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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