[petsc-users] -pc_mg_monitor

[Mark Adams]

GAMG does not know about this explicitly and apparently it is not getting
picked up my PCMG correctly (probably my fault).

I don't understand what this is supposed to do.  I would not worry about
it, but should GAMG care about this?

Mark

On Thu, Jun 11, 2015 at 7:48 AM, David Scott <d.scott at ed.ac.uk> wrote:

> Hello,
>
> I am using MINRES with GAMG and have supplied various options
>
> #PETSc Option Table entries:
> -ksp_max_it 500
> -ksp_monitor_true_residual
> -log_summary
> -mg_levels_ksp_max_it 2
> -mg_levels_ksp_type chebyshev
> -mg_levels_pc_type sor
> -options_left
> -pc_gamg_agg_nsmooths 1
> -pc_gamg_threshold 0.03
> -pc_gamg_type agg
> -pc_gamg_verbose 7
> -pc_mg_monitor
> #End of PETSc Option Table entries
> There is one unused database option. It is:
> Option left: name:-pc_mg_monitor (no value)
>
> Does this mean that I should have supplied an integer value with
> -pc_mg_monitor or is it not applicable in this case? If I should have
> supplied a value what is the allowed range?
>
> Thanks in advance,
>
> David
>
>
> --
> The University of Edinburgh is a charitable body, registered in
> Scotland, with registration number SC005336.
>
>
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