heffte::cufft_executor_r2c Class Reference
Wrapper to cuFFT API for real-to-complex transform with shortening of the data. More...
#include <heffte_backend_cuda.h>
Public Member Functions | |
| template<typename index > | |
| cufft_executor_r2c (cudaStream_t active_stream, box3d< index > const box, int dimension) | |
| Constructor defines the box and the dimension of reduction. More... | |
| void | forward (float const indata[], std::complex< float > outdata[], std::complex< float > *) const override |
| Forward transform, single precision. | |
| void | backward (std::complex< float > indata[], float outdata[], std::complex< float > *) const override |
| Backward transform, single precision. | |
| void | forward (double const indata[], std::complex< double > outdata[], std::complex< double > *) const override |
| Forward transform, double precision. | |
| void | backward (std::complex< double > indata[], double outdata[], std::complex< double > *) const override |
| Backward transform, double precision. | |
| int | box_size () const override |
| Returns the size of the box with real data. | |
| int | complex_size () const override |
| Returns the size of the box with complex coefficients. | |
| size_t | workspace_size () const override |
| Return the size of the needed workspace. | |
| virtual void | forward (float[], float *) const |
| Bring forth method that have not been overloaded. | |
| virtual void | forward (double[], double *) const |
| Bring forth method that have not been overloaded. | |
| virtual void | forward (std::complex< float >[], std::complex< float > *) const |
| Bring forth method that have not been overloaded. | |
| virtual void | forward (std::complex< double >[], std::complex< double > *) const |
| Bring forth method that have not been overloaded. | |
| virtual void | forward (float const [], std::complex< float >[], std::complex< float > *) const |
| Bring forth method that have not been overloaded. | |
| virtual void | forward (double const [], std::complex< double >[], std::complex< double > *) const |
| Bring forth method that have not been overloaded. | |
| virtual void | backward (float[], float *) const |
| Bring forth method that have not been overloaded. | |
| virtual void | backward (double[], double *) const |
| Bring forth method that have not been overloaded. | |
| virtual void | backward (std::complex< float >[], std::complex< float > *) const |
| Bring forth method that have not been overloaded. | |
| virtual void | backward (std::complex< double >[], std::complex< double > *) const |
| Bring forth method that have not been overloaded. | |
| virtual void | backward (std::complex< float >[], float[], std::complex< float > *) const |
| Bring forth method that have not been overloaded. | |
| virtual void | backward (std::complex< double >[], double[], std::complex< double > *) const |
| Bring forth method that have not been overloaded. | |
 Public Member Functions inherited from heffte::executor_base | |
| virtual | ~executor_base ()=default |
| Virtual destructor. | |
| virtual void | forward (float[], float *) const |
| Forward r2r, single precision. | |
| virtual void | forward (double[], double *) const |
| Forward r2r, double precision. | |
| virtual void | backward (float[], float *) const |
| Backward r2r, single precision. | |
| virtual void | backward (double[], double *) const |
| Backward r2r, double precision. | |
| virtual void | forward (std::complex< float >[], std::complex< float > *) const |
| Forward FFT, single precision. | |
| virtual void | forward (std::complex< double >[], std::complex< double > *) const |
| Forward FFT, double precision. | |
| virtual void | backward (std::complex< float >[], std::complex< float > *) const |
| Backward FFT, single precision. | |
| virtual void | backward (std::complex< double >[], std::complex< double > *) const |
| Backward FFT, double precision. | |
Detailed Description
Wrapper to cuFFT API for real-to-complex transform with shortening of the data.
Serves the same purpose of heffte::cufft_executor but only real input is accepted and only the unique (non-conjugate) coefficients are computed. All real arrays must have size of real_size() and all complex arrays must have size complex_size().
Constructor & Destructor Documentation
◆ cufft_executor_r2c()
template<typename index >
|
inline |
Constructor defines the box and the dimension of reduction.
Note that the result sits in the box returned by box.r2c(dimension).
The documentation for this class was generated from the following file:
- include/heffte_backend_cuda.h
