Barry Smith <[email protected]> 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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