Grid FFT

Overview

Cabana::Grid enables computing fast Fourier transforms on grid data through an interface to the heFFTe library.

Implementation

Cabana_Grid_FastFourierTransform.hpp

Examples

• FFT Example
• FFT Unit Test

Usage

    auto lhs = Cabana::Grid::createArray<double, memory_space>( "lhs", vector_layout );

    Cabana::Grid::Experimental::FastFourierTransformParams params;
    auto fft = Cabana::Grid::Experimental::createHeffteFastFourierTransform<
        double, device_type>( *vector_layout, params );

    fft->forward( *lhs, Cabana::Grid::Experimental::FFTScaleFull() );
    fft->reverse( *lhs, Cabana::Grid::Experimental::FFTScaleNone() );

This is part of the Programming Guide series