Package edu.rit.pj.reduction

Package edu.rit.pj.reduction contains classes for parallel reduction.

See:
Description

Class Summary

BooleanOp	Class BooleanOp is the abstract base class for a binary operation on Boolean values, used to do reduction in a parallel program.
ByteOp	Class ByteOp is the abstract base class for a binary operation on byte values, used to do reduction in a parallel program.
CharacterOp	Class CharacterOp is the abstract base class for a binary operation on character values, used to do reduction in a parallel program.
DoubleOp	Class DoubleOp is the abstract base class for a binary operation on double values, used to do reduction in a parallel program.
FloatOp	Class FloatOp is the abstract base class for a binary operation on float values, used to do reduction in a parallel program.
IntegerOp	Class IntegerOp is the abstract base class for a binary operation on integer values, used to do reduction in a parallel program.
LongOp	Class LongOp is the abstract base class for a binary operation on long values, used to do reduction in a parallel program.
ObjectOp<T>	Class ObjectOp is the abstract base class for a binary operation on object values, used to do reduction in a parallel program.
Op	Class Op is the abstract base class for a binary operation used to do reduction in a parallel program.
ReduceArrays	Class ReduceArrays provides static methods for reduction operations on arrays and matrices of primitive types and object types.
SharedBoolean	Class SharedBoolean provides a reduction variable for a value of type boolean.
SharedBooleanArray	Class SharedBooleanArray provides an array reduction variable with elements of type boolean.
SharedByte	Class SharedByte provides a reduction variable for a value of type byte.
SharedByteArray	Class SharedByteArray provides an array reduction variable with elements of type byte.
SharedCharacter	Class SharedCharacter provides a reduction variable for a value of type char.
SharedCharacterArray	Class SharedCharacterArray provides an array reduction variable with elements of type char.
SharedDouble	Class SharedDouble provides a reduction variable for a value of type double.
SharedDoubleArray	Class SharedDoubleArray provides an array reduction variable with elements of type double.
SharedFloat	Class SharedFloat provides a reduction variable for a value of type float.
SharedFloatArray	Class SharedFloatArray provides an array reduction variable with elements of type float.
SharedInteger	Class SharedInteger provides a reduction variable for a value of type int.
SharedIntegerArray	Class SharedIntegerArray provides an array reduction variable with elements of type int.
SharedIntegerMatrix	Class SharedIntegerMatrix provides a matrix reduction variable with elements of type int.
SharedLong	Class SharedLong provides a reduction variable for a value of type long.
SharedLongArray	Class SharedLongArray provides an array reduction variable with elements of type long.
SharedLongMatrix	Class SharedLongMatrix provides a matrix reduction variable with elements of type long.
SharedObject<T>	Class SharedObject provides a reduction variable for a value of an object type.
SharedObjectArray<T>	Class SharedObjectArray provides an array reduction variable with elements of an object type.
SharedShort	Class SharedShort provides a reduction variable for a value of type short.
SharedShortArray	Class SharedShortArray provides an array reduction variable with elements of type short.
ShortOp	Class ShortOp is the abstract base class for a binary operation on short values, used to do reduction in a parallel program.

Package edu.rit.pj.reduction Description

Package edu.rit.pj.reduction contains classes for parallel reduction.

Class Op is the abstract base class for a binary operation used to combine two values together during a reduction. The subclasses of class Op provide binary operations on different data types:

Type	Class
boolean	BooleanOp
byte	ByteOp
char	CharacterOp
double	DoubleOp
float	FloatOp
int	IntegerOp
long	LongOp
short	ShortOp
Object	ObjectOp

Each of these subclasses provides an op() method that can be overridden to compute the desired binary operation. Each of these subclasses also provides static instances for commonly-used binary operations like sum, product, maximum, and minimum.

The following classes provide shared reduction variables for each of the primitive types as well as type Object. These classes are intended to be used in an SMP parallel program for data items shared among all the threads in the program.

Type	Class
boolean	SharedBoolean
byte	SharedByte
char	SharedCharacter
double	SharedDouble
float	SharedFloat
int	SharedInteger
long	SharedLong
short	SharedShort
Object	SharedObject

The following classes provide shared reduction variables for arrays of each of the primitive types as well as array of type Object. These classes are intended to be used in an SMP parallel program for data arrays shared among all the threads in the program.

Type	Class
boolean[]	SharedBooleanArray
byte[]	SharedByteArray
char[]	SharedCharacterArray
double[]	SharedDoubleArray
float[]	SharedFloatArray
int[]	SharedIntegerArray
long[]	SharedLongArray
short[]	SharedShortArray
Object[]	SharedObjectArray