KokkosFFT::fftshift

template<typename ExecutionSpace, typename ViewType>
void KokkosFFT::fftshift(const ExecutionSpace &exec_space, const ViewType &inout, std::optional<int> axes = std::nullopt)

Shift the zero-frequency component to the center of the spectrum.

Template Parameters:

• ExecutionSpace – The type of Kokkos execution space

• ViewType – Input/Output View type for the shift

Parameters:

• exec_space – [in] Kokkos execution space

• inout – [in,out] Spectrum

• axes – [in] Axes over which to shift (default: nullopt, shifting over all axes)

template<typename ExecutionSpace, typename ViewType, std::size_t DIM = 1>
void KokkosFFT::fftshift(const ExecutionSpace &exec_space, const ViewType &inout, axis_type<DIM> axes)

Shift the zero-frequency component to the center of the spectrum.

Template Parameters:

• ExecutionSpace – The type of Kokkos execution space

• ViewType – Input/Output View type for the shift

• DIM – The dimensionality of the shift

Parameters:

• exec_space – [in] Kokkos execution space

• inout – [in,out] Spectrum

• axes – [in] Axes over which to shift