[petsc-users] ILUTP in PETSc

Xiaoye S. Li xsli at lbl.gov
Fri May 2 15:40:19 CDT 2014

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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