stressVdt.cxx File Reference

#include <vector>
#include <iostream>
#include <cmath>
#include <assert.h>
#include <limits>
#include <iomanip>
#include <map>
#include <string>
#include "vdt/vdtMath.h"
#include "TStopwatch.h"
#include "TRandom3.h"
#include "TH1F.h"
#include "TCanvas.h"
#include "TError.h"

Include dependency graph for stressVdt.cxx:

Enumerations
enum	rangeType {   kReal, kExp, kExpf, kRealPlus,   km1p1 }

Functions
template<typename T , typename F >
void	calculateValues (F mathFunc, const std::vector< T > &inputVector, std::vector< T > &outputVector)
void	checkFunction (const std::string &label, float, uint32_t maxdiffBit)
template<typename T , typename F1 , typename F2 >
void	compareFunctions (const std::string &label, F1 vdtFunc, F2 systemFunc, const std::vector< T > &inputVector, std::vector< T > &outputVectorVDT, std::vector< T > &outputVectorSystem, float &speedup, uint32_t &maxdiffBit, TH1F &histo)
template<typename T >
void	compareOutputs (const std::vector< T > &inputVector1, const std::vector< T > &inputVector2, std::vector< uint32_t > &outputVector)
template<class T >
uint32_t	diffbit (const T a, const T b)
	Returns most significative different bit. More...
void	dpStep1 ()
void	dpStep2 ()
void	dpStep3 ()
template<typename T >
void	fillRandom (std::vector< T > &randomV, const rangeType theRangeType)
template<class T >
uint64_t	fp2uint (T)
template<>
uint64_t	fp2uint< double > (double x)
template<>
uint64_t	fp2uint< float > (float x)
double	isqrt (double x)
float	isqrtf (float x)
int	main ()
template<typename T , typename F >
double	measureTiming (F mathFunc, const std::vector< T > &inputVector, std::vector< T > &outputVector)
void	spStep1 ()
void	spStep2 ()
void	spStep3 ()
template<typename T >
void	treatBinDiffHisto (TH1F &histo, const std::vector< T > &VDTVals, const std::vector< T > &SystemVals)

Variables
struct staticInitHelper	gbl
const double	RANGE =3000.
	Simple program to benchmark vdt accuracy and cpu performance. More...
const uint32_t	SIZE = 16777216

Enumeration Type Documentation

enum rangeType

Enumerator
kReal
kExp
kExpf
kRealPlus
km1p1

Definition at line 91 of file stressVdt.cxx.

Function Documentation

template<typename T , typename F >

void calculateValues ( F  mathFunc, const std::vector< T > &  inputVector, std::vector< T > &  outputVector  )

inline

Definition at line 60 of file stressVdt.cxx.

void checkFunction	(	const std::string &	label,
		float	,
		uint32_t	maxdiffBit
	)

Definition at line 260 of file stressVdt.cxx.

template<typename T , typename F1 , typename F2 >

void compareFunctions ( const std::string &  label, F1  vdtFunc, F2  systemFunc, const std::vector< T > &  inputVector, std::vector< T > &  outputVectorVDT, std::vector< T > &  outputVectorSystem, float &  speedup, uint32_t &  maxdiffBit, TH1F &  histo  )

inline

Definition at line 207 of file stressVdt.cxx.

template<typename T >

void compareOutputs	(	const std::vector< T > &	inputVector1,
		const std::vector< T > &	inputVector2,
		std::vector< uint32_t > &	outputVector
	)

Definition at line 76 of file stressVdt.cxx.

template<class T >

uint32_t diffbit ( const T  a, const T  b  )

inline

Returns most significative different bit.

Definition at line 47 of file stressVdt.cxx.

void dpStep1

(

)

Definition at line 339 of file stressVdt.cxx.

void dpStep2

(

)

Definition at line 363 of file stressVdt.cxx.

void dpStep3

(

)

Definition at line 380 of file stressVdt.cxx.

template<typename T >

void fillRandom	(	std::vector< T > &	randomV,
		const rangeType	theRangeType
	)

Definition at line 98 of file stressVdt.cxx.

template<class T >

uint64_t fp2uint

(

T

)

Definition at line 26 of file stressVdt.cxx.

template<>

uint64_t fp2uint< double >

(

double

x

)

Definition at line 33 of file stressVdt.cxx.

template<>

uint64_t fp2uint< float >

(

float

x

)

Definition at line 39 of file stressVdt.cxx.

double isqrt ( double  x )

inline

Definition at line 273 of file stressVdt.cxx.

float isqrtf ( float  x )

inline

Definition at line 272 of file stressVdt.cxx.

int main

(

)

Definition at line 398 of file stressVdt.cxx.

template<typename T , typename F >

double measureTiming ( F  mathFunc, const std::vector< T > &  inputVector, std::vector< T > &  outputVector  )

inline

Definition at line 135 of file stressVdt.cxx.

void spStep1

(

)

Definition at line 280 of file stressVdt.cxx.

void spStep2

(

)

Definition at line 305 of file stressVdt.cxx.

void spStep3

(

)

Definition at line 322 of file stressVdt.cxx.

template<typename T >

void treatBinDiffHisto	(	TH1F &	histo,
		const std::vector< T > &	VDTVals,
		const std::vector< T > &	SystemVals
	)

Definition at line 118 of file stressVdt.cxx.

Variable Documentation

struct staticInitHelper gbl

const double RANGE =3000.

Simple program to benchmark vdt accuracy and cpu performance.

Definition at line 20 of file stressVdt.cxx.

const uint32_t SIZE = 16777216

Definition at line 21 of file stressVdt.cxx.