filters.h File Reference

#include <cuda_runtime.h>

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Data Structures
struct	params
struct	filter_arrays
struct	gpu_arrays
struct	cmd_args

Macros
#define	CUDA_SHM   1
	Use shared memory GPU kernel. More...
#define	SIZE_MUL   1
	Multiplier of 11 to derive filter length. More...
#define	B_SIZE   11 * SIZE_MUL
	filter length More...
#define	A_SIZE   (B_SIZE - 1)
	For IIR filter. not used currently. More...
#define	OFFSET   20
	Offset for CPU filter input buffer. More...
#define	MAX_RATES   10
	Maximum number of sampling rates. More...
#define	MAX_FILTERS   1024
	Maximum number of filters. More...

Functions
void	compute_ref (float *h_in[], float *h_reference[], gpu_arrays *gpuarrays, params *gparams, cmd_args *args, filter_arrays *farr, int N)
void	compute_omp (float *h_in[], float *h_reference[], gpu_arrays *gpuarrays, params *gparams, cmd_args *args, filter_arrays *farr, int N)
void	check_results (float *h_reference[], float *h_out[], gpu_arrays *gpuarrays, params *gparams, int N)
void	read_command_line (int argc, char *argv[], cmd_args *args)
void	print_usage ()

Variables
static int	rdiv [MAX_RATES] = {2, 10, 50, 4, 16, 32, 8, 24, 36, 42}
	Decimation factors for multiple input rates. More...

Macro Definition Documentation

#define A_SIZE   (B_SIZE - 1)

For IIR filter. not used currently.

Definition at line 30 of file filters.h.

#define B_SIZE   11 * SIZE_MUL

filter length

Definition at line 28 of file filters.h.

#define CUDA_SHM   1

Use shared memory GPU kernel.

Definition at line 25 of file filters.h.

#define MAX_FILTERS   1024

Maximum number of filters.

Definition at line 35 of file filters.h.

#define MAX_RATES   10

Maximum number of sampling rates.

Definition at line 34 of file filters.h.

#define OFFSET   20

Offset for CPU filter input buffer.

Definition at line 32 of file filters.h.

#define SIZE_MUL   1

Multiplier of 11 to derive filter length.

Definition at line 27 of file filters.h.

Function Documentation

void check_results	(	float *	h_reference[],
		float *	h_out[],
		gpu_arrays *	gpuarrays,
		params *	gparams,
		int	N
	)

Check the relative error between CPU and GPU filter computation results

Parameters

h_in	array containing all input blocks of the MR filter
h_reference	array containing the MR filter CPU output
h_out	array containing the MR filter GPU output
gpuarrays	structure containg the gpu arrays and parameters
gparams	sructure containg parameters
N	the number of input blocks to be processed.

Definition at line 188 of file filters_host.cpp.

void compute_omp	(	float *	h_in[],
		float *	h_reference[],
		gpu_arrays *	gpuarrays,
		params *	gparams,
		cmd_args *	args,
		filter_arrays *	farr,
		int	N
	)

Execution of the multirate filter configuration with OpenMP.

Parameters

h_in	array containing all input blocks of the MR filter
h_reference	array containing the MR filter output
gpuarrays	structure containg the gpu arrays and parameters
gparams	sructure containg parameters
args	structure containing command line arguments
farr	structure containg the filters
N	the number of input blocks to be processed.

Definition at line 123 of file filters_host.cpp.

void compute_ref	(	float *	h_in[],
		float *	h_reference[],
		gpu_arrays *	gpuarrays,
		params *	gparams,
		cmd_args *	args,
		filter_arrays *	farr,
		int	N
	)

Execution of the multirate filter configuration serially.

Parameters

h_in	array containing all input blocks of the MR filter
h_reference	array containing the MR filter output
gpuarrays	structure containg the gpu arrays and parameters
gparams	sructure containg parameters
args	structure containing command line arguments
farr	structure containg the filters
N	the number of input blocks to be processed.

Definition at line 69 of file filters_host.cpp.

void print_usage

(

)

Print command line usage.

Definition at line 314 of file filters_host.cpp.

void read_command_line	(	int	argc,
		char *	argv[],
		cmd_args *	args
	)

Read arguments from command line

Definition at line 231 of file filters_host.cpp.

Variable Documentation

int rdiv[MAX_RATES] = {2, 10, 50, 4, 16, 32, 8, 24, 36, 42}

static

Decimation factors for multiple input rates.

Definition at line 75 of file filters.h.