template<class IdxRangeLaplacian, class IdxRangeFull = IdxRangeLaplacian, class ExecSpace = Kokkos::DefaultExecutionSpace, class LayoutSpace = Kokkos::layout_right>
class FFTPoissonSolver< IdxRangeLaplacian, IdxRangeFull, ExecSpace, LayoutSpace >
See FFTPoissonSolverImplementation.