Re: Treelayout and CGS

[David Bateman]

Jaroslav Hajek wrote:
> 2. What is the reason for supplying M0 & M1, if they are multiplied
> anyway? I don't remember much from Krylov methods, but I guess perhaps
> the purpose of specifying 2 preconditioners is so that their
> multiplication can be avoided?
>
>
>   
The book at

ftp://ftp.netlib.org/templates/templates.ps

might help for this

Regards
David

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