swarm.random
Interface SplitGenerator

All Known Subinterfaces:

SplitRandomGenerator

public interface SplitGenerator

Internal.

Method Summary

java.lang.Object	advanceAll() The advanceAll method resets the state of all the virtual generators to the start of their next segment.
java.lang.Object	advanceGenerator(int vGen) The advanceGenerator method resets the state of a virtual generator to the start of the next segment.
long	getCurrentCount(int vGen) The getCurrentCount method returns the current count of the specified virtual generator (i.e.
long	getCurrentSegment(int vGen) The getCurrentSegment method returns the number of the current segment of the specified virtual generator.
double	getDoubleSample(int vGen) The getDoubleSample method returns a random floating-point number of size double, uniformly distributed in the range [0.0,1.0), from virtual generator (data stream) vGen.
float	getFloatSample(int vGen) The getFloatSample method returns a random floating-point number of size float, uniformly distributed in the range [0.0,1.0), from virtual generator (data stream) vGen.
int	getNumGenerators() The getNumGenerators method returns the current number of virtual generators (A).
int	getNumSegments() The getNumSegments method returns log2(the current number of segments) = v.
int	getSegmentLength() The getSegmentLength method returns log2(the current segment length) = w.
double	getThinDoubleSample(int vGen) The getThinDoubleSample method returns a random floating-point number of size double, uniformly distributed in the range [0.0,1.0), from virtual generator (data stream) vGen.
int	getUnsignedSample(int vGen) The getUnsignedSample method returns a random unsigned integer uniformly distributed over the interval [0,unsignedMax] from virtual generator (data stream) vGen.
java.lang.Object	jumpAllToSegment(long seg) The jumpAlltoSegment: method resets the state of all the virtual generators to the start of the specified segment.
java.lang.Object	jumpGenerator$toSegment(int vGen, long seg) The jumpGenerator:toSegment: method resets the state of a virtual generator to the start of the specified segment.
java.lang.Object	restartAll() The restartAll method resets the state of all the virtual generators to the start of their current segment.
java.lang.Object	restartGenerator(int vGen) The restartGenerator method resets the state of a virtual generator to the start of the current segment.

Method Detail

getNumGenerators

public int getNumGenerators()

The getNumGenerators method returns the current number of virtual generators (A).

getNumSegments

public int getNumSegments()

The getNumSegments method returns log2(the current number of segments) = v.

getSegmentLength

public int getSegmentLength()

The getSegmentLength method returns log2(the current segment length) = w.

restartGenerator

public java.lang.Object restartGenerator(int vGen)

The restartGenerator method resets the state of a virtual generator to the start of the current segment.

advanceGenerator

public java.lang.Object advanceGenerator(int vGen)

The advanceGenerator method resets the state of a virtual generator to the start of the next segment.

jumpGenerator$toSegment

public java.lang.Object jumpGenerator$toSegment(int vGen,
                                                long seg)

The jumpGenerator:toSegment: method resets the state of a virtual generator to the start of the specified segment.

restartAll

public java.lang.Object restartAll()

The restartAll method resets the state of all the virtual generators to the start of their current segment.

advanceAll

public java.lang.Object advanceAll()

The advanceAll method resets the state of all the virtual generators to the start of their next segment.

jumpAllToSegment

public java.lang.Object jumpAllToSegment(long seg)

The jumpAlltoSegment: method resets the state of all the virtual generators to the start of the specified segment.

getUnsignedSample

public int getUnsignedSample(int vGen)

The getUnsignedSample method returns a random unsigned integer uniformly distributed over the interval [0,unsignedMax] from virtual generator (data stream) vGen.

getFloatSample

public float getFloatSample(int vGen)

The getFloatSample method returns a random floating-point number of size float, uniformly distributed in the range [0.0,1.0), from virtual generator (data stream) vGen. This method uses 1 call to -getUnsignedSample to fill the mantissa.

getThinDoubleSample

public double getThinDoubleSample(int vGen)

The getThinDoubleSample method returns a random floating-point number of size double, uniformly distributed in the range [0.0,1.0), from virtual generator (data stream) vGen. This method uses 1 call to -getUnsignedSample to fill the mantissa.

getDoubleSample

public double getDoubleSample(int vGen)

The getDoubleSample method returns a random floating-point number of size double, uniformly distributed in the range [0.0,1.0), from virtual generator (data stream) vGen. This method uses 2 calls to -getUnsignedSample to fill the mantissa.

getCurrentSegment

public long getCurrentSegment(int vGen)

The getCurrentSegment method returns the number of the current segment of the specified virtual generator.

getCurrentCount

public long getCurrentCount(int vGen)

The getCurrentCount method returns the current count of the specified virtual generator (i.e. the number of variates delivered).