On Mon, Sep 24, 2012 at 9:48 PM, John Mousel <john.mousel at gmail.com> wrote:
> I'm having a problem with GAMG causing a MatSetValues() is [some non-zero > number] after > I do not see any errors in your output. Matt > [0] PCSetUp(): Setting up new PC > > I don't get this with either ILU or HYPRE/BoomerAMG. I've attached the > output of -info. I see there is a recent change to some pre-allocation for > GAMG here: > > http://petsc.cs.iit.edu/petsc/petsc-dev/rev/fe806009181b > > I'm not sure if that has anything to do with it, but my blocksize is 1. > I'm running with the following options. > > -ksp_type bcgsl -pc_type gamg -pc_gamg_threshold 0.01 -mg_levels_ksp_type > richardson -mg_levels_pc_type sor -mg_coarse_ksp_type richardson > -mg_coarse_pc_type sor -mg_coarse_pc_sor_its 4 -pc_gamg_type agg > -pc_gamg_agg_nsmooths 1 -pc_gamg_sym_graph true -info > -ksp_monitor_true_residual > > Thanks, > John > > > > > > > -- 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-dev/attachments/20120925/dc8fbf46/attachment.html>
