[petsc-dev] About PCFieldSplitGetSubKSP

[Ryan Yan]

Dear Barry,
Thanks a lot  for the pointer. This also reminds me the sprintf...

Yan

On Sat, May 7, 2011 at 11:34 PM, Barry Smith <bsmith at mcs.anl.gov> wrote:

>
> On May 7, 2011, at 9:12 PM, Ryan Yan wrote:
>
> > Dear All,
> > I have a question about the function call PCFieldSplitSetFields() in the
> developer version.
> >
> > I would like to name of each field separately, and using some
> > rule based on the count of i.
> >
> > For instance, I would try:
> >  for (i = 0; i < m/3; i++) {
> >     ierr = PCFieldSplitSetFields(pc,"0",xxx,xxx);
> >     ierr = PCFieldSplitSetFields(pc,"1",xxx,xxx);
> >   }
> >
> > When m=3 this is fine, since there is only one pass, namely, '0' and '1'
> is fine
> > When m=6, I want 4 fields. But how can I set up the name as '3' and '4'
> after the first pass in the loop.
> >
> > I think the question is how to fill up an char[] dynamically as a integer
> array?
>
>    The standard C function scanf().
>
>  Barry
>
> >
> > This might be a naive question, but I did not come up any way of doing
> it.
> >
> > Many thanks,
> >
> > Yan
>
>
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