On Wed, Nov 30, 2016 at 7:27 AM, Karin&NiKo <niko.ka...@gmail.com> wrote:
> Dear PETSc team, > > I am using the "-pc_fieldsplit_detect_saddle_point" feature of fieldsplit > in order to solve a Stokes-like problem. > > I would like to check the saddle point structure automatically detected by > PETSc. > o Is there a way of printing the automatically built IS? > The -ksp_view will give you the sizes. If you want the actual IS you can use http://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/PC/PCFieldSplitGetIS.html after the solve. Matt > o Are there some printings with "-ksp_view" that could give some > insight on the fields built by PETSc? > > Thanks in advance, > Nicolas > -- 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