On Tue, Jun 2, 2015 at 3:55 PM, Harshad Sahasrabudhe <[email protected]> wrote:
> Hi, > > Does PETSc have automatic differentiation capability? I'm solving an > elliptic non-linear equation in which calculating the correct Jacobian is > extremely demanding. The system doesn't converge with an approximate > Jacobian. Is there any SNES solver I should try which doesn't use a > Jacobian? > Do you mean it does not converge with the default FD Jacobian? Matt > Thanks, > Harshad > -- What most experimenters take for granted before they begin their experiments is infinitely more interesting than any results to which their experiments lead. -- Norbert Wiener
