[petsc-dev] rename SNES methods ls, tr etc

Barry Smith bsmith at mcs.anl.gov
Mon Dec 3 13:34:19 CST 2012


On Dec 3, 2012, at 12:40 AM, Jed Brown <jedbrown at mcs.anl.gov> wrote:

> Fine with me, but it might be nice if the name could somehow convey that this is just a defect-correction iteration and need not be Newton (e.g., it's Picard if a Picard linearization is used).

    What is "a Picard linearization"? As opposed to a non-Picard linearization? Also if you phrase it as in my other email isn't Newton "a Picard linearization"?   You act as if the term "a Picard linearization" has a well defined meaning, but Matt never found it in any book in history.

   Barry


> OTOH, the name "Newton" is much more recognizable...
> 
> 
> On Sun, Dec 2, 2012 at 5:51 PM, Matthew Knepley <knepley at gmail.com> wrote:
> On Sun, Dec 2, 2012 at 6:27 PM, Barry Smith <bsmith at mcs.anl.gov> wrote:
> >
> >    Can we rename
> >
> > #define SNESLS           "ls"
> > #define SNESTR           "tr"
> > #define SNESVIRS         "virs"
> > #define SNESVISS         "viss"
> >
> > to something like   newtonls newtontr vinewtonrs vinewtonss?  Suggestions for names?
> 
> +1
> 
>   Matt
> 
> >    Now that we have many other methods than Newton these names are terrible and confusing.
> >
> >    Thanks
> >
> >     Barry
> >
> 
> 
> 
> --
> 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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