On Fri, Apr 27, 2012 at 5:46 PM, Kyungjoo Kim <iamkyungjoo at gmail.com> wrote:
> Hello, > > > I am wondering if you do something like reordering (nested dissection or > minimum degree) when you perform ilu. > http://www.mcs.anl.gov/petsc/petsc-dev/docs/manualpages/PC/PCFactorSetMatOrderingType.html#PCFactorSetMatOrderingType Matt > I do experiments with one reordered by nested dissection and the other one > is reordered opposite way. > (BTW, ilu does not do pivoting but isn't it possible to do pivot if petsc > find out block matrices such like supernodes ? ) > > Somehow both behave in the same way. Do you internally reorder a matrix ? > ( I could not find out any clue about this in reference manual) > > Thank you. > > > > > > -- 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 -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20120427/d99c77d8/attachment.htm>
