print stage_host

mpi_stencil2d_gt.cc

@@ -262,6 +262,7 @@ int main(int argc, char** argv)
     printf("n procs    = %d\n", world_size);
     printf("n_global   = %d\n", n_global);
     printf("n_local    = %d\n", n_local);
+    printf("stage_host = %d\n", stage_host);
   }
 
   auto h_z = gt::empty<double>({n_global, n_local_with_ghost});