[petsc-users] MatGetDiagonalBlock and shell matrices

[Steven Dargaville]

HI all

Thanks for this Barry, the branch you've made seems to be working
perfectly. Do you think this change will make it into a future PETSc
release? I can imagine this would be very useful for a number of people.

Thanks
Steven


On Sat, Aug 27, 2016 at 11:02 PM, Jed Brown <jed at jedbrown.org> wrote:

> Barry Smith <bsmith at mcs.anl.gov> writes:
>
> >    I have added support for this operation in the branch
> barry/add-matshell-matgetdiagonalblock-fortran
> >
> >    Barry
> >
> > Because this required changing the handling of the method
> MatGetDiagonalBlock() the addition cannot be back ported to PETSc 3.7.x
>
> Huh, it seems okay to me.  The change is only matimpl.h (which is
> private anyway) and doesn't change method numbering so it shouldn't
> affect the ABI.
>
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