[petsc-dev] question about Krylov solves, symmetric matrices, and ICC

[Paul Mullowney]

On 03/06/2013 09:09 AM, Jed Brown wrote:
>
> On Wed, Mar 6, 2013 at 9:57 AM, Paul Mullowney <paulm at txcorp.com 
> <mailto:paulm at txcorp.com>> wrote:
>
>     This works. Thanks.
>
>     Does the Cholesky/ICC factorization have a specialized storage
>     i.e. like the ILU storage?
>
>

This answers my question. Thanks. Agreed that ILU is the way to go.

> There is only one triangular factor so it's not "special". You could 
> write an ICC that duplicated storage by copying the factor to optimize 
> back-solves for streaming, but it's of very little value compared to 
> just using ILU.

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.mcs.anl.gov/pipermail/petsc-dev/attachments/20130306/b69820a3/attachment.html>