[petsc-users] move from KSPSetNullSpace to MatSetNullSpace

[Stephan Kramer]

>    Stephan,
>
>    Sorry for the long delay. I have updated the branch barry/maint/mv-matnullspace-to-mat  to use the Amat argument for passing in the null space instead of the pmat argument. Could you please try it with your configuration of solvers and let us know if it resolves the problem?
>
>    Thanks
>
>    Barry
>
> If it works it will eventually go into the maint (and then patch release).
>
>

That's great! I've tried out the branch and all our tests are passing again. Thanks a lot for looking into this

Cheers
Stephan