[Getdp] scaling in 0.83

[Christophe Geuzaine]

Lin Ji wrote:
> 
> Dear Christophe,
>    To run getdp-0.83 correctly for my acoustic wave equation, it seems I need
> to turn the scaling off in solver.par. I tried it on Linux. Is it the case
> for any other operating system and any other problem? Is there an

Yes, the diagonal scaling is broken in 0.83 (in fact, there was no
scaling in previous versions, despite the flag in solver.par). This will
be fixed in the next release.

> explaination on how to choose the various parameters in solver.par? Thanks.
> 

At the moment, there is the small help included in the solver.par
file... An excellent reference documenting the various solvers available
in getdp is:

@book{saad-book-96,
  author =	 "Y. Saad",
  title =	 "Iterative Methods for Sparse Linear Systems",
  publisher =	 "PWS Publishing Company",
  year =	 1996
}


Christophe

> Lin Ji
> 
> --
> Dept. of Math., RPI
> 518-276,6904 (work)
> 518-271,4486 (home)
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-- 
Christophe Geuzaine

Tel: 32 (0) 4 366 37 10    http://geuz.org
Fax: 32 (0) 4 366 29 10    mailto:Christophe.Geuzaine at ulg.ac.be