Re: MatCreateMPISAIJ?

[billy@xxxxxxxxxxxxx]

Thanks for the info.

Quoting Hong Zhang <hzhang@xxxxxxxxxxx>:

> 
> petsc supports many sparse matrix storage formats, in which
> aij  for compressed sparse row format
> baij for block compressed sparse row format
> sbaij for symmetric block compressed sparse row format.
> When block size bs=1, baij format is same as aij,
> and sbaij format is same as aij without storing the
> lower triangular entries.
> 
> Hong
> 
> On Wed, 8 Nov 2006 billy@xxxxxxxxxxxxx wrote:
> 
> >
> > What does the block size mean?
> >
> > Billy.
> >
> > Quoting Hong Zhang <hzhang@xxxxxxxxxxx>:
> >
> > >
> > > MatCreateMPIAIJ -> MatCreateMPISBAIJ (symmetric) with block size bs=1.
> > >
> > > Hong
> > >
> > > On Wed, 8 Nov 2006 billy@xxxxxxxxxxxxx wrote:
> > >
> > > >
> > > > Hi,
> > > >
> > > >
> > > > I am currently using MatCreateMPIAIJ type matrices. Is there a
> symmetric
> > > version
> > > > of this type?
> > > >
> > > > Like:
> > > >
> > > > MatCreateMPIBAIJ (non-symmetric) -> MatCreateMPISBAIJ (symmetric).
> > > >
> > > > MatCreateMPIAIJ (non-symmetric) -> MatCreateMPISAIJ (symmetric) ??
> > > >
> > > > Billy.
> > > >
> > > >
> > >
> > >
> >
> >
> >
> 
>