Option with HYPRE and KSP

[Ben Tay]

Ya, bcgs worked, solving my own problem. But it doesn't seem to work with
the test examples like ex1f or ex2f.

On 4/9/07, Boyce Griffith <griffith at cims.nyu.edu> wrote:
>
>
>
> Barry Smith wrote:
> >
> > On Mon, 9 Apr 2007, Ben Tay wrote:
> >> 3. why can't I use bcgs  or bicg with hypre?
> >
> >    hypre doesn't support applying the transpose of the preconditioner
> that
> > bcgs and bicg need?
>
> I don't believe that Bi-CGSTAB (-ksp_type bcgs) uses matrix or
> preconditioner transposes.  On the other hand, bicg does.
>
> -- Boyce
>
>
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