On Thu, Jun 23, 2011 at 10:25 AM, Jed Brown <jed at 59a2.org> wrote: > On Thu, Jun 23, 2011 at 14:53, John Fettig <john.fettig at gmail.com> wrote: >> ?Is there >> anyplace in the documentation that would help me understand this? >> Alternatively, where would I look in mpiaij.c? > > The MPIAIJ format works with blocks that are in SeqAIJ format. In most > cases, it's not necessary to be familiar with the internal storage format. > Are you just curious how it's implemented, or is there something you are > trying to do that depends on the storage format?
I'm trying to use MatCreateMPIAIJWithSplitArrays, but it isn't clear to me how the off-diagonal portion is supposed to be constructed. John
