Package com.singularsys.jepexamples.diagnostics

Class SpeedTest

java.lang.Object

com.singularsys.jepexamples.diagnostics.SpeedTest

public class SpeedTest
extends Object

Compares the speed of evaluation between different evaluation schemes. The standard class compares BigDecimal, Jep (with default Fast evaluator), the old StandardEvaluator, and RealEvaluator.

If you have some nice complicated examples, I'd love to hear about them to see if we can tune things up. - rich

Command line arguments: -pause cause the program to wait for keyboard input before running tests, can be useful for running in a debugger; 1000000 sets the number of iterations to used.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	SpeedTest.BDConfig	Configuration using the BDConfig
static class	SpeedTest.EvaluationConfig	Basic class to set the evaluation context
static class	SpeedTest.JepConfig	Standard Jep configuration (with FastEvaluator)
static class	SpeedTest.JepConfig3_4	Standard Jep configuration (with FastEvaluator)
static class	SpeedTest.JepConfig3_5
static class	SpeedTest.JepConfig3_5NC
static class	SpeedTest.JepConfigNoChecks	Standard Jep configuration (with FastEvaluator)
static class	SpeedTest.OldConfig	Configuration using the StandardEvaluator
static class	SpeedTest.Outputter	Different output methods
static class	SpeedTest.PostfixConfig	Configuration using the RealEvaluator
static class	SpeedTest.RatioOutputter	Print detailed ratios for each run.
static class	SpeedTest.RealConfig	Configuration using the RealEvaluator
static class	SpeedTest.TabOutputter	Print output tab separated.
static class	SpeedTest.ThreadSafeConfig	Configuration using the RealEvaluator
static class	SpeedTest.UncheckedConfig

Field Summary

Fields

Modifier and Type	Field	Description
protected final List<SpeedTest.EvaluationConfig>	configs
final int	nDeriv
int	num_itts
final int	num_vals
final int	num_warmup
protected final SpeedTest.Outputter	outputter
protected long[]	totalTimes

Constructor Summary

Constructors

Constructor	Description
SpeedTest(SpeedTest.Outputter outputter)

Method Summary

Modifier and Type	Method	Description
void	addConfig(SpeedTest.EvaluationConfig config)	Adds a new EvaluationConfig to be run for comparison.
void	doAll(String[] eqns, String[] varNames)	Run speed comparison for a set of equations.
void	doAll(String eqn, String[] varNames)	Run speed comparison for a single equation.
void	fini()
void	init()
static void	main(String[] args)	Main method, executes all speed tests.
static void	runTests(SpeedTest st)	A standard set of tests.
static void	runTests2(SpeedTest st)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

num_itts

public int num_itts

num_warmup

public final int num_warmup

See Also:

• Constant Field Values

num_vals

public final int num_vals

See Also:

• Constant Field Values

nDeriv

public final int nDeriv

See Also:

• Constant Field Values

configs

protected final List<SpeedTest.EvaluationConfig> configs

outputter

protected final SpeedTest.Outputter outputter

totalTimes

protected long[] totalTimes

Constructor Details

SpeedTest

public SpeedTest(SpeedTest.Outputter outputter)

Parameters:

outputter -

Method Details

init

public void init()

fini

public void fini()

doAll

public void doAll(String eqn,
 String[] varNames)

Run speed comparison for a single equation.

Parameters:

eqn - The equation to test

varNames - an array of variable names which will be set to random values.

doAll

public void doAll(String[] eqns,
 String[] varNames)

Run speed comparison for a set of equations.

Parameters:

eqns -

varNames -

addConfig

public void addConfig(SpeedTest.EvaluationConfig config)

Adds a new EvaluationConfig to be run for comparison.

Parameters:

config -

runTests2

public static void runTests2(SpeedTest st)

runTests

public static void runTests(SpeedTest st)

A standard set of tests.

Parameters:

st -

main

public static void main(String[] args)

Main method, executes all speed tests.

Parameters:

args -