On Fri, Feb 10, 2012 at 14:49, recrusader <recrusader@gmail.com> wrote:

Since MATMPIAIJ works (I didn't change anything. Just set the vec and mat types to mpicusp and mpiaijcusp for GPU), I think the problem is likely from MatSetValues_MPIAIJ().

Which PETSc examples can test this function?

Try src/ksp/ksp/examples/tutorials/ex43.c and src/snes/examples/tutorials/ex48.c