Package org.apfloat.aparapi

Class LongAparapiFactor3NTTStrategy

java.lang.Object

org.apfloat.internal.Factor3NTTStrategy

org.apfloat.aparapi.LongAparapiFactor3NTTStrategy

All Implemented Interfaces:

Parallelizable, NTTStrategy

public class LongAparapiFactor3NTTStrategy
extends Factor3NTTStrategy

Factor-3 NTT implementation for the long element type.

Since:

1.8.3

Version:

1.9.0

Field Summary

Fields inherited from class org.apfloat.internal.Factor3NTTStrategy

stepStrategy

Constructor Summary

Constructors

Constructor	Description
LongAparapiFactor3NTTStrategy()	Default constructor.

Method Summary

Modifier and Type	Method	Description
void	inverseTransform(DataStorage dataStorage, int modulus, long totalTransformLength)	Perform an inverse transform on the data.
private void	postTransform(DataStorage dataStorage)
private void	preTransform(DataStorage dataStorage)
void	transform(DataStorage dataStorage, int modulus)	Perform a forward transform on the data.

Methods inherited from class org.apfloat.internal.Factor3NTTStrategy

getTransformLength

Methods inherited from class java.lang.Object

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

Constructor Detail

LongAparapiFactor3NTTStrategy

public LongAparapiFactor3NTTStrategy()

Default constructor.

Method Detail

transform

public void transform(DataStorage dataStorage,
                      int modulus)
               throws ApfloatRuntimeException

Description copied from interface: NTTStrategy

Perform a forward transform on the data.

Multiple moduli can be used, if the convolution algorithm uses the Chinese Remainder Theorem to calculate the final result.

Specified by:

transform in interface NTTStrategy

Overrides:

transform in class Factor3NTTStrategy

Parameters:

dataStorage - The data to be transformed.

modulus - Number of modulus to use (in case the transform supports multiple moduli).

Throws:

ApfloatRuntimeException

inverseTransform

public void inverseTransform(DataStorage dataStorage,
                             int modulus,
                             long totalTransformLength)
                      throws ApfloatRuntimeException

Description copied from interface: NTTStrategy

Perform an inverse transform on the data.

Multiple moduli can be used, if the convolution algorithm uses the Chinese Remainder Theorem to calculate the final result.

Specified by:

inverseTransform in interface NTTStrategy

Overrides:

inverseTransform in class Factor3NTTStrategy

Parameters:

dataStorage - The data to be transformed.

modulus - Number of modulus to use (in case the transform supports multiple moduli).

totalTransformLength - Total transform length; the final result elements are divided by this value.

Throws:

ApfloatRuntimeException

preTransform

private void preTransform(DataStorage dataStorage)

postTransform

private void postTransform(DataStorage dataStorage)