Hello,
I use MatIsSymmetric to know if the matrix A is symmetric.
According to my model, it should be symmetric due to the theory.
But I always get the result 'PetscBool *flg = 0', although I
set 'tol' a large value(0.001).
Because the matrix is of 20000 dimension, I can not output the
matrix to the txt. So I want to konw if there is something to be paid attention
to
about the function 'MatIsSymmetric' in version 3.2. Or do I have some other ways
to determine the symmetry.I think symmetry is one of the most important thing
in my analysis.
Thanks.
Jim
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20121202/0442bc3d/attachment.html>
