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flags.c File Reference

Testing the nfft. More...

#include <stdio.h>
#include <math.h>
#include <string.h>
#include <stdlib.h>
#include "util.h"
#include "nfft3.h"
#include "options.h"

Functions

void flags_cp (nfft_plan *dst, nfft_plan *src)
void time_accuracy (int d, int N, int M, int n, int m, unsigned test_ndft, unsigned test_pre_full_psi)
void accuracy_pre_lin_psi (int d, int N, int M, int n, int m, int K)
int main (int argc, char **argv)

Variables

unsigned test_fg = 0
unsigned test_fftw = 0
unsigned test = 0


Detailed Description

Testing the nfft.

Author:
Stefan Kunis
References: Time and Memory Requirements of the Nonequispaced FFT

Function Documentation

void accuracy_pre_lin_psi int  d,
int  N,
int  M,
int  n,
int  m,
int  K
 

output vector ndft

realloc psi

precomputation can be done before the nodes are initialised

init pseudo random nodes

init pseudo random Fourier coefficients

compute exact result

NFFT

finalise

void time_accuracy int  d,
int  N,
int  M,
int  n,
int  m,
unsigned  test_ndft,
unsigned  test_pre_full_psi
 

output vector ndft

init pseudo random nodes

init pseudo random Fourier coefficients

NDFT

NFFTs

finalise


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