[petsc-users] ILUTP in PETSc

[Xiaoye S. Li]

The sequential SuperLU has ILUTP implementation, not in parallel versions.
PETSc already supports the option of using SuperLU, so you should be able
to try easily.

In SuperLU distribution:
  EXAMPLE/zitersol.c : an example to use GMRES with ILUTP preconditioner
(returned from driver SRC/zgsisx.c)
  SRC/zgsitrf.c : the actual ILUTP factorization routine

Sherry Li


On Fri, May 2, 2014 at 12:25 PM, Barry Smith <bsmith at mcs.anl.gov> wrote:

>
> At http://www.mcs.anl.gov/petsc/documentation/linearsolvertable.html there are two listed. ./configure —download-hypre
>
> mpiexec -n 23 ./yourprogram -pc_type hypre -pc_hypre_type ilupt or euclid
>
> you can also add -help to see what options are available.
>
>   Both pretty much suck and I can’t image much reason for using them.
>
>    Barry
>
>
> On May 2, 2014, at 10:27 AM, Qin Lu <lu_qin_2000 at yahoo.com> wrote:
>
> > Hello,
> >
> > I am interested in using ILUTP preconditioner with PETSc linear solver.
> There is an online doc
> https://fs.hlrs.de/projects/par/par_prog_ws/pdf/petsc_nersc01_short.pdfthat mentioned it is available in PETSc with other packages (page 62-63).
> Is there any instructions or examples on how to use it?
> >
> > Many thanks,
> > Qin
>
>
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