MatCreateSubMatrices Mark Adams <[email protected]> writes:
> I have a parallel matrix and I want to extract parts of it locally to > create small local matrices. > > I use PETSC_COMM_SELF for the ISs, but that does not seem to be enough to > tell MatCreateSubMatrix that I want a PETSC_COMM_SELF (sub)matrix. > > How should I do this? > > I am not doing any communication in this process. Could I just wrap the > local part of the parallel matrix into a PETSC_COMM_SELF matrix? > > Thanks, > Mark
