On Sun, Dec 11, 2011 at 12:05 AM, Xiangdong Liang <xdliang at gmail.com> wrote:
> Hello PETSc team, > > I was using PaStiX within petsc 3.1-p8. Today, I am trying PaStiX > within petsc-dev. However, For the same code, solving the same linear > system takes longer time (120s vs 90s) in petsc-dev. Both are compiled > with debugging mode off. Is it possible that the newer PaStiX is > slower than old version? or due to some options in compiling? > It is likely the options are not exactly the same, meaning the ordering is different, etc. Did you check everything wiht -ksp_view and -ksp_monitor? Matt > Best, > Xiangdong > > PS. I cannot use PaStiX in 3.2 because in the runtime, PaStiX crashed > due to missing of the option -DWITHSCOTCH during compiling. It was > reported before by one user and fixed in petsc-dev, but not in > petsc-3.2-p5. > > http://lists.mcs.anl.gov/pipermail/petsc-users/2011-March/008356.html > -- 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/20111211/c4f324d1/attachment.htm>
