On Wed, Dec 30, 2015 at 5:27 PM, Vikram Garg <vikram.v.g...@gmail.com> wrote:
> I made a test case for debugging a potential bug in the Adjoint Refinement > Error Estimator. However, I am encountering a somewhat bizarre issue on > running it. > > |F| = 3662.286105743243 > |J| = 1137.777777779091 > * 0 KSP Residual norm -nan * > That's your problem. You're getting a NAN so the solver is not doing anything. What solver options are you using? I presume this is with PETSc? What PETSc options? Note that with PETSc >= 3.6.x, some change in behavior has been noted that is still being tracked down. Did you try direct solvers? ------------------------------------------------------------------------------ _______________________________________________ Libmesh-users mailing list Libmesh-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/libmesh-users
