[petsc-users] Check PETSc's saddle point structure

[Karin&NiKo]

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?
        o Are there some printings with "-ksp_view" that could give some
insight on the fields built by PETSc?

Thanks in advance,
Nicolas
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