[petsc-users] ill-conditioned problems in PETSc

[Matthew Knepley]

On Wed, Jun 27, 2012 at 7:55 AM, w_ang_temp <w_ang_temp at 163.com> wrote:

> Hello,
>
>     I want to deal with the ill-conditioned problems of Terzaghi's
> one-dimensional consolidation
>
> finite element equations in geotechnical engineering. So is there special
> support on ill-conditioned
>
> problems using ksp in PETSc.
>

Use a direct solver, like built-in LU,  or in parallel, MUMPS
(--download-mumps).

  Matt


>     Thanks.
>
>                                                      Jim
>
>
>


-- 
What most experimenters take for granted before they begin their
experiments is infinitely more interesting than any results to which their
experiments lead.
-- Norbert Wiener
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