On Thu, Dec 29, 2011 at 1:28 PM, Junchao Zhang <junchao.zhang at gmail.com>wrote:
> Hello, > I create a MPIAIJ matrix. How can I know the # of nonzeros stored > locally? > Furthermore, in case it is needed, how can I get access to the Compress > Sparse Row(CSR) data structure of the local matrix, i.e., the row pointer > array, column index array, value array? > We do nto recommend it, but you can use http://www.mcs.anl.gov/petsc/petsc-dev/docs/manualpages/Mat/MatGetColumnIJ.html Matt > > Thank you! > -- Junchao Zhang > -- What most experimenters take for granted before they begin their experiments is infinitely more interesting than any results to which their experiments lead. -- Norbert Wiener -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20111229/5838f9f0/attachment.htm>
