As a note, with MatNest and MatZeroRowsColumns I get [0]PETSC ERROR: No support for this operation for this object type [0]PETSC ERROR: Mat type nest
which is informative, but with MatNest and and MatZeroRowsColumnsLocal I get [0]PETSC ERROR: ------------------------------------------------------------------------ [0]PETSC ERROR: Caught signal number 11 SEGV: Segmentation Violation, probably memory access out of range Garth On 4 February 2018 at 18:43, Jed Brown <[email protected]> wrote: > It is not implemented and it's somewhat inconsistent with the MatNest > philosophy of specifying everything in terms of local indices, though it > could be implemented. > > "Garth N. Wells" <[email protected]> writes: > > > Should MatZeroRowsColumnsLocal work for matrices of type MATNEST? > > > > Garth >
