Matt, src/snes/examples/tutorials/ex8.c apparently went untested for a long while.
Recently I added it to the nightly tests. It does not work because it improperly did not call MatAssemblyBegin/End() collectively (in trying to do boundary conditions). It appears to be some ancient attempt at doing finite elements for a simple problem (yet uses MatSetValuesStencil?) It needs to be fixed up or completely removed from the source code? I say just remove it all. What do you think? Barry
