Manual of MatGetRowIJ says "Returns the compressed row storage i and j indices for *sequential *matrices." Could I pass MPIAIJ matrix as an argument to it?
On Thu, Dec 29, 2011 at 1:34 PM, Jed Brown <jedbrown at mcs.anl.gov> wrote: > On Thu, Dec 29, 2011 at 13:32, Matthew Knepley <knepley at gmail.com> wrote: > >> We do nto recommend it, but you can use >> http://www.mcs.anl.gov/petsc/petsc-dev/docs/manualpages/Mat/MatGetColumnIJ.html >> > > Or, more likely, > > > http://www.mcs.anl.gov/petsc/petsc-dev/docs/manualpages/Mat/MatGetRowIJ.html > > > But the matrices are not actually stored this way, so calling this > function involves a copy. > -- Junchao Zhang -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20111229/ee1a3fb8/attachment.htm>
