Dear Jed,

The first example works. However, the example uses MatSetValuesStencil() not MatSetValues(). Are they same?

Thanks a lot,
Yujie

On Fri, Feb 10, 2012 at 2:51 PM, Jed Brown <jedbrown@mcs.anl.gov> wrote:
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