[petsc-users] reduce a MPIBAIJ matrix to seqaij format

Jed Brown jedbrown at mcs.anl.gov
Mon Aug 27 11:43:09 CDT 2012


On Mon, Aug 27, 2012 at 11:40 AM, shu guo <greatgs2008 at gmail.com> wrote:

> Thanks for reply. I have a question on superlu_dist. Is this solver
> suitable for ill-conditioned matrix?
>

It depends how ill-conditioned


> I read some thread of past
> mailing list, Barry indicated that superlu is more adaptive with ill
> conditioned matrix. Thanks.
>

SuperLU is a serial method, but it is typically more appropriate for very
ill-conditioned systems.
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