On Mon, Dec 20, 2010 at 7:47 AM, Xiaoyin Ji <[email protected]> wrote:

Hi,

I was wondering if petsc could convert an existing matrix into a preconditioner and use it in ks...thought this shall be a straight-forward question but I didn't find the answer in manuals. Thanks a lot.

http://www.mcs.anl.gov/petsc/petsc-as/snapshots/petsc-current/docs/manualpag... Matt

Regards,

Xiaoyin Ji

-- 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