[petsc-dev] preallocation checks

[Barry Smith]

On Jan 20, 2012, at 11:02 AM, Jed Brown wrote:

> On Fri, Jan 20, 2012 at 10:52, Barry Smith <bsmith at mcs.anl.gov> wrote:
> But what about a MatConvert_whatever_SeqAIJ() that uses MatGetRow() to determine counts for preallocation. We don't have such a beast?????
> 
> I think MatConvert_Basic should work that way, but you have to determine whether values are in the diagonal block or not.
Not for seqaij you don't.   Come on, it is understandable we do a crummy job for a hard case but we should at least do a good job for an easy case.