[petsc-users] partition an MPIAIJ matrix

Recrusader recrusader at gmail.com
Mon Feb 20 16:45:01 CST 2012

Dear Jed,

It is not only redistribute the matrix. I want to get the reorder information and use matpermute to reorder the matrix.


On Feb 20, 2012, at 4:31 PM, Jed Brown <jedbrown at mcs.anl.gov> wrote:

> On Mon, Feb 20, 2012 at 16:27, recrusader <recrusader at gmail.com> wrote:
> Thank you very much for your prompt reply.
> Actually, I want to reorder MPIAIJ matrix using Parmetis. The reordering function needs the same information with the partitioning, that is "i" and "j".
> Are you just redistributing the matrix? Or other data?
> I need to directly get them and then use the function in Parmetis.
> MatConvert()
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