Thanks, I guess I misinterpreted the manual. -Nachiket
On Wed, Jan 23, 2013 at 11:20 AM, Jed Brown <jedbrown at mcs.anl.gov> wrote: > It works in serial. In parallel, it currently gives the diagonal of the > "diagonal blocks" induced by the row and column distributions. That only > matches the true diagonal for square matrices, though an actual diagonal > doesn't typically make algorithmic sense for a non-square parallel matrix. > > > On Wed, Jan 23, 2013 at 10:16 AM, Nachiket Gokhale <gokhalen at gmail.com> > wrote: >> >> Any chance of making this work in serial? >> >> >> http://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/Mat/MatGetDiagonal.html >> >> Not a show stopper, I am trying to get the diagonal of some small >> projected, dense matrices (which come from large sparse matrices). I >> am running in serial because 1) Since my projected matrices are small, >> and 2) PETSc does not do certain matrix multiplications involving a >> dense matrix in parallel, >> >> -Nachiket > >
