On Thu, Nov 10, 2011 at 14:45, Bao Kai <paeanball at gmail.com> wrote:
> PCFIELDSPLIT seems a little more complex, I will try that. > > I tried some different preconditioners, only lu can get right results. > > With some pc, some wrong results can be obtained, such as the following > one. > > tutorials]$ time ./ex78 -Ain A_in -rhs rhs -solu solu -noshift -pc_type > hypre -pc_hypre_type parasails -ksp_gmres_restart 600 -ksp_rtol 1e-5 > -ksp_typ gmres > Always run with -ksp_monitor_true_residual -ksp_converged_reason when checking whether a preconditioner is working. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20111110/3d5e1de6/attachment.htm>
