Check boundary conditions. For debugging, do MatTranspose() followed by MatAXPY() to see the difference A - A^T.
On Sun, Dec 2, 2012 at 12:09 PM, w_ang_temp <w_ang_temp at 163.com> wrote: > Maybe the matrix in my project is true unsymmetric. I use MatIsTranspose > and get > the same result. Maybe I need to check my constitutive model. > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20121202/f5b9d40c/attachment.html>
