Dear Developers, I've finished programming with SNES. But when I run, SNES just do one Nonlinear iteration and comes out !!! I check that the residual evaluation is correct BUT the linear solver may not work while the number of linear iteration is "0". I also check that the jacobian routine is called during process but I don't know how to check the jacobian and preconditioner in SNES to ensure the correct values.
Here I want to know what procedure I should do and where is the beginning point for debugging with SNES? Thanks a lot, BehZad -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20111121/8cb8d413/attachment.htm>
