[petsc-users] printing snes prefix with monitor

[Matthew Knepley]

On Thu, Oct 6, 2016 at 9:51 AM, Blaise A Bourdin <bourdin at lsu.edu> wrote:

> Hi,
>
> I have a problem with 2 nested snes (i.e. SNESComputeFunction for snes1
> involves a SNESSolve for snes2).
> Each snes has a different prefix. The problem is that the SESMonitor won’t
> print the SNES prefix, so that making sense of output can be a bit tricky…
> Is there a simple way to have each snes monitor display the prefix of the
> snes it refers to? Alternatively, where in the source code is the residual
> printed during snessolve?


It would be nice to have a mode that put the prefix on the monitor line.

What we currently do is indent the subsolve. I normally make the tab level
1 greater than the enclosing solve


http://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/Sys/PetscObjectGetTabLevel.html#PetscObjectGetTabLevel

http://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/Sys/PetscObjectSetTabLevel.html

  Thanks,

     Matt


> Blaise
> --
> Department of Mathematics and Center for Computation & Technology
> Louisiana State University, Baton Rouge, LA 70803, USA
> Tel. +1 (225) 578 1612, Fax  +1 (225) 578 4276 http://www.math.lsu.edu/~
> bourdin

-- 
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
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