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fft_2d.cpp File Reference
`#include <iostream>`
`#include <vector>`
`#include <cmath>`
`#include <complex>`
`#include <algorithm>`
`#include "viennacl/linalg/host_based/fft_operations.hpp"`
`#include "viennacl/linalg/fft_operations.hpp"`
`#include "viennacl/fft.hpp"`

Go to the source code of this file.

## Classes

struct | testData

## Typedefs

typedef float | ScalarType
typedef ScalarType(* | test_function_ptr )(std::vector< ScalarType > &, std::vector< ScalarType > &, unsigned int, unsigned int, unsigned int)
typedef void(* | input_function_ptr )(std::vector< ScalarType > &, std::vector< ScalarType > &, unsigned int &, unsigned int &, unsigned int &, const std::string &)

## Functions

void | set_values_struct (std::vector< ScalarType > &input, std::vector< ScalarType > &output, unsigned int &rows, unsigned int &cols, unsigned int &batch_size, testData &data)
void | read_matrices_pair (std::vector< ScalarType > &input, std::vector< ScalarType > &output, unsigned int &rows, unsigned int &cols, unsigned int &batch_size, const std::string &log_tag)
template<typename ScalarType >
ScalarType | diff (std::vector< ScalarType > &vec, std::vector< ScalarType > &ref)
template<typename ScalarType >
ScalarType | diff_max (std::vector< ScalarType > &vec, std::vector< ScalarType > &ref)
void | copy_vector_to_matrix (viennacl::matrix< ScalarType > &input, std::vector< ScalarType > &in, unsigned int row, unsigned int col)
void | copy_matrix_to_vector (viennacl::matrix< ScalarType > &input, std::vector< ScalarType > &in, unsigned int row, unsigned int col)
ScalarType | fft_2d_1arg (std::vector< ScalarType > &in, std::vector< ScalarType > &out, unsigned int row, unsigned int col, unsigned int)
ScalarType | transpose_inplace (std::vector< ScalarType > &in, std::vector< ScalarType > &out, unsigned int row, unsigned int col, unsigned int)
ScalarType | transpose (std::vector< ScalarType > &in, std::vector< ScalarType > &out, unsigned int row, unsigned int col, unsigned int)
ScalarType | fft_2d_2arg (std::vector< ScalarType > &in, std::vector< ScalarType > &out, unsigned int row, unsigned int col, unsigned int)
int | test_correctness (const std::string &log_tag, input_function_ptr input_function, test_function_ptr func)
int | main ()

## Variables

const ScalarType | EPS = ScalarType(0.06f)

## Detailed Description

Tests the two-dimensional FFT routines.

Test:
  Tests the two-dimensional FFT routines.

Definition in file fft_2d.cpp.

## Typedef Documentation

typedef void(* input_function_ptr)(std::vector< ScalarType > &, std::vector< ScalarType > &, unsigned int &, unsigned int &, unsigned int &, const std::string &)

Definition at line 48 of file fft_2d.cpp.

typedef float ScalarType

Definition at line 42 of file fft_2d.cpp.

typedef ScalarType(* test_function_ptr)(std::vector< ScalarType > &, std::vector< ScalarType > &, unsigned int, unsigned int, unsigned int)

Definition at line 46 of file fft_2d.cpp.

## Function Documentation

void copy_matrix_to_vector | ( | viennacl::matrix< ScalarType > & | input,
|  | std::vector< ScalarType > & | in,
|  | unsigned int | row,
|  | unsigned int | col
| ) |  |

Definition at line 184 of file fft_2d.cpp.

void copy_vector_to_matrix | ( | viennacl::matrix< ScalarType > & | input,
|  | std::vector< ScalarType > & | in,
|  | unsigned int | row,
|  | unsigned int | col
| ) |  |

Definition at line 170 of file fft_2d.cpp.

template<typename ScalarType >

ScalarType diff | ( | std::vector< ScalarType > & | vec,
|  | std::vector< ScalarType > & | ref
| ) |  |

Definition at line 130 of file fft_2d.cpp.

template<typename ScalarType >

ScalarType diff_max | ( | std::vector< ScalarType > & | vec,
|  | std::vector< ScalarType > & | ref
| ) |  |

Definition at line 145 of file fft_2d.cpp.

ScalarType fft_2d_1arg | ( | std::vector< ScalarType > & | in,
|  | std::vector< ScalarType > & | out,
|  | unsigned int | row,
|  | unsigned int | col,
|  | unsigned | int
| ) |  |

Definition at line 197 of file fft_2d.cpp.

ScalarType fft_2d_2arg | ( | std::vector< ScalarType > & | in,
|  | std::vector< ScalarType > & | out,
|  | unsigned int | row,
|  | unsigned int | col,
|  | unsigned | int
| ) |  |

Definition at line 263 of file fft_2d.cpp.

int main | ( |  | ) |

Definition at line 311 of file fft_2d.cpp.

void read_matrices_pair | ( | std::vector< ScalarType > & | input,
|  | std::vector< ScalarType > & | output,
|  | unsigned int & | rows,
|  | unsigned int & | cols,
|  | unsigned int & | batch_size,
|  | const std::string & | log_tag
| ) |  |

Definition at line 115 of file fft_2d.cpp.

void set_values_struct | ( | std::vector< ScalarType > & | input,
|  | std::vector< ScalarType > & | output,
|  | unsigned int & | rows,
|  | unsigned int & | cols,
|  | unsigned int & | batch_size,
|  | testData & | data
| ) |  |

Definition at line 95 of file fft_2d.cpp.

int test_correctness | ( | const std::string & | log_tag,
|  | input_function_ptr | input_function,
|  | test_function_ptr | func
| ) |  |

Definition at line 286 of file fft_2d.cpp.

ScalarType transpose | ( | std::vector< ScalarType > & | in,
|  | std::vector< ScalarType > & | out,
|  | unsigned int | row,
|  | unsigned int | col,
|  | unsigned | int
| ) |  |

Definition at line 239 of file fft_2d.cpp.

ScalarType transpose_inplace | ( | std::vector< ScalarType > & | in,
|  | std::vector< ScalarType > & | out,
|  | unsigned int | row,
|  | unsigned int | col,
|  | unsigned | int
| ) |  |

Definition at line 218 of file fft_2d.cpp.

## Variable Documentation

const ScalarType EPS = ScalarType(0.06f)

Definition at line 44 of file fft_2d.cpp.