I am having a little trouble, or confusion, with the MatIsSymmetric
function. I am getting the reverse behaviour from this routine that I
expect. I am convinced I have a symmetric matrix, but the answer I get
from this function is always zero - ie, PetscTruth = PetscFalse.
Why, if PETSC_YES is a
crubbed...
Name: README.nonrepeatibility
URL:
<http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20071017/26ed5232/attachment.diff>
Is there a reason for not using 2.3.3? I suspect this to be a problem with
finite precision, which is corrected in the newest release.'
Thanks,
Matt
On 10/17/07, Toby D. Young wrote:
>
>
> I am having a little trouble, or confusion, with the MatIsSymmetric
> function. I am getting the rev
The 2d results, as noted, are reasonable and expected behavior.
The 3d results are not acceptable, when sometimes it converges
and sometimes it does not. I would use a 1e-12 KSP rtol and a similar
1e-12 SNES rtol; does it now always converge? If not then I suspect there
may be some error in t
