filters.cu File Reference

#include "filter_kernels.h"
#include <device/device_config.h>
#include <device/cuda/check.h>
#include <stdio.h>
#include <stdlib.h>

Go to the source code of this file.

Functions
void	cuda_smooth_step (void *x, real *edge0, real *edge1, int *n)
void	cuda_step_function (void *x, real *edge, real *left, real *right, int *n)
void	cuda_permeability (void *x, real *k_0, real *k_1, real *q, int *n)

Function Documentation

cuda_permeability()

void cuda_permeability	(	void *	x,
		real *	k_0,
		real *	k_1,
		real *	q,
		int *	n
	)

Fortran wrapper for the permeability filter

Parameters

x	array to apply the permeability filter on
k_0	lower bound of the permeability
k_1	upper bound of the permeability
q	parameter
n	size of the array

Definition at line 90 of file filters.cu.

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cuda_smooth_step()

void cuda_smooth_step	(	void *	x,
		real *	edge0,
		real *	edge1,
		int *	n
	)

Fortran wrapper for 2nd order smooth_step

Compute the smooth step function for a given array. t = clamp((x - edge0) / (edge1 - edge0), 0.0, 1.0); return t^3 * (t * (6.0 * t - 15.0) + 10.0);

Definition at line 49 of file filters.cu.

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cuda_step_function()

void cuda_step_function	(	void *	x,
		real *	edge,
		real *	left,
		real *	right,
		int *	n
	)

Fortran wrapper for step function

Compute the step function for a given array. if (x < edge) return left; else return right;

Parameters

x	array to apply the step function
edge	threshold value
left	value to return if x < edge
right	value to return if x >= edge
n	size of the array

Definition at line 72 of file filters.cu.

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