external solvers - scalapack

[Hong Zhang]

On Wed, 17 Dec 2008, Nichols A. Romero wrote:

> Hi,
>
> I looked through the mailing lists to see if this question
> was already asked but could not find anything.
>
> In the PETSc TACC2008 tutorial, it states that PETSc interfaces
> with Scalapack?

No, petsc is not interfaced with Scalapack.
Petsc is interfaced with MUMPS, which requires Scalapack.

>
> I would like to know what is supported from Scalapack. I am particularly
> interested in:
> 1. Cholesky factorization (I know there are a couple of alternative options here, e.g. PLAPACK).

Yes, you can get parallel dense Cholesky factorization through
petsc/PLAPACK interface.

> 2. Dense eigenvalue solver
You may take a look at slepc.

Hong

>
>
>
> Nichols A. Romero, Ph.D.
> Argonne Leadership Computing Facility
> Argonne National Laboratory
> Building 360 Room L-146
> 9700 South Cass Avenue
> Argonne, IL 60490
> (630) 252-3441
>
>