What types of AIJ matrices can directly use partitioning implementation? The matrix I am using doesn't work? I have to use ParMETIS since it can provide fill-reducing matrix ordering. >From my understanding, MatConvert can only reorder the matrix and doesn't provide the reordering information.
Thanks, Yujie On Mon, Feb 20, 2012 at 8:13 PM, Jed Brown <jedbrown at mcs.anl.gov> wrote: > On Mon, Feb 20, 2012 at 20:09, recrusader <recrusader at gmail.com> wrote: > >> I am taking a look at ex15 ( >> http://www.mcs.anl.gov/petsc/petsc-current/src/mat/examples/tutorials/ex15.c.html >> ). >> I am very confused with this. In Section 3.5 Partitioning of the manual, >> one special Mat, that is 'adj', need to be established. >> However, in ex15, the common matrix is created. Does the matrix >> automatically contain the connection information? >> > > Most (perhaps all?) of the partitioning implementations work with normal > AIJ matrices. Internally, they usually have to convert to the MPIAdj > because that is the interface to ParMETIS and others. Your code doesn't > have to think about it. > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20120220/d810966c/attachment.htm>
