[petsc-users] TS question 2: why not -ts_adapt_wnormtype 1 ?

[Jed Brown]

I think it just wasn't implemented.  Note that these have custom code
because of the weighting vectors -- it isn't just a call to VecNorm.
Patches welcome.

Ed Bueler <elbueler at alaska.edu> writes:

> Dear Petsc --
>
> This is the second of two short TS usage questions.
>
> I would like my TS, for MOL on a PDE based on a spatial grid (DMDA) of
> course, to be tolerant of crap at a few locations.  Thus I set
>
> -ts_adapt_wnormtype 1
>
> and I got a very clear error saying "Only 2-norm and infinite norm
> supported".  I was surprised because I figured if you could implement one
> (vector) norm you could do any.
>
> Why?  If there is a good reason, *which I expect*, is there a citation on
> the adaptive fundamentals that would explain this surprise?
>
> Thanks!
>
> Ed
>
> -- 
> Ed Bueler
> Dept of Math and Stat and Geophysical Institute
> University of Alaska Fairbanks
> Fairbanks, AK 99775-6660
> 301C Chapman and 410D Elvey
> 907 474-7693 and 907 474-7199  (fax 907 474-5394)
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