Use ExecutionSpace::fence() as (non-static) member function
Created by: masterleinad
ExecutionSpace::fence()
is non-static anymore, see https://github.com/kokkos/kokkos/issues/2140.
Created by: masterleinad
ExecutionSpace::fence()
is non-static anymore, see https://github.com/kokkos/kokkos/issues/2140.