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

Jed Brown jedbrown at mcs.anl.gov
Wed Mar 6 10:09:50 CST 2013


On Wed, Mar 6, 2013 at 9:57 AM, Paul Mullowney <paulm at txcorp.com> wrote:

> This works. Thanks.
>
> Does the Cholesky/ICC factorization have a specialized storage i.e. like
> the ILU storage?
>

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/20130306/9553f77f/attachment.html>


More information about the petsc-dev mailing list