On Fri, Apr 8, 2011 at 14:28, <domenico.borzacchiello at univ-st-etienne.fr>wrote:
> I Assumed that the FD evaluation of Jacobian would be exact since the the > Function is linear. > Sort of, it's still a problem if your function looks like f(x) = huge + epsilon * x. I suspect either a memory bug (try valgrind) or that your FormFunctionLocal is using internal state or otherwise nonlinear. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20110408/03503a49/attachment.htm>
