Re: [petsc-users] Near nullspace lost in fieldsplit

[Jeremy Theler (External)]

>   The new code is in https://gitlab.com/petsc/petsc/-/merge_requests/7293 and 
> retains the null space on the submatrices for both MatZeroRows() and 
> MatZeroRowsAndColumns() regardless of changes to the nonzero structure of the 
> matrix.

Thank you very much Barry.
It works as expected.

--
jeremy