[petsc-users] about ILUT preconditioner

behzad baghapour behzad.baghapour at gmail.com
Mon Oct 3 08:25:04 CDT 2011


Many thanks.

I have a basic (dummy) question here...Does downloading external packages
like blas,lapack, hypre with Petsc command make them usable for other codes
as linked libraries or is just for use of Petsc?



On Mon, Oct 3, 2011 at 4:24 PM, Barry Smith <bsmith at mcs.anl.gov> wrote:

>
> On Oct 3, 2011, at 3:55 AM, behzad baghapour wrote:
>
> > Is it necessary to download and link SPARSEKIT with Petsc to use ILUT
> (with threshold) as a preconditioner? If so, is it correct to configure
> Petsc with
> > --download-sparsekit in this matter?
> >
>
>     We removed the interface to sparsekit a long time ago, because it
> wasn't very good.
>
>    If you want to use ILUT you can use --download-hypre then run with
> -pc_type boomeramg -pc_hypre_type pilut
>
>    See
> http://www.mcs.anl.gov/petsc/petsc-as/snapshots/petsc-dev/docs/manualpages/PC/PCHYPRE.htmlfor more details and run the PETSc program with the above options and -help
> to see the various pilut options.
>
>    Barry
>
>
> > --
> > ==================================
> > Behzad Baghapour
> > Ph.D. Candidate, Mechecanical Engineering
> > University of Tehran, Tehran, Iran
> > https://sites.google.com/site/behzadbaghapour
> > Fax: 0098-21-88020741
> > ==================================
> >
>
>


-- 
==================================
Behzad Baghapour
Ph.D. Candidate, Mechecanical Engineering
University of Tehran, Tehran, Iran
https://sites.google.com/site/behzadbaghapour
Fax: 0098-21-88020741
==================================
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