edu.rit.mp.buf

Class SharedShortArrayBuf_1

java.lang.Object

edu.rit.mp.Buf

edu.rit.mp.ShortBuf

edu.rit.mp.buf.SharedShortArrayBuf

edu.rit.mp.buf.SharedShortArrayBuf_1

public class SharedShortArrayBuf_1
extends SharedShortArrayBuf

Class SharedShortArrayBuf_1 provides a buffer for a multiple thread safe array of short items sent or received using the Message Protocol (MP). The array element stride must be 1. While an instance of class SharedShortArrayBuf_1 may be constructed directly, normally you will use a factory method in class ShortBuf. See that class for further information.

Constructor Summary

Constructors

Constructor and Description
SharedShortArrayBuf_1(SharedShortArray theArray, Range theRange) Construct a new shared short array buffer.

Method Summary

Modifier and Type	Method and Description
short	get(int i) Obtain the given item from this buffer.
Buf	getReductionBuf(Op op) Create a buffer for performing parallel reduction using the given binary operation.
void	put(int i, short item) Store the given item in this buffer.

Methods inherited from class edu.rit.mp.ShortBuf

buffer, buffer, buffer, buffer, buffer, buffer, colSliceBuffer, colSliceBuffers, copy, emptyBuffer, fill, getTemporaryBuf, patchBuffer, patchBuffers, rowSliceBuffer, rowSliceBuffers, sliceBuffer, sliceBuffer, sliceBuffers, sliceBuffers

Methods inherited from class edu.rit.mp.Buf

length

Methods inherited from class java.lang.Object

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

Constructor Detail

SharedShortArrayBuf_1

public SharedShortArrayBuf_1(SharedShortArray theArray,
                             Range theRange)

Construct a new shared short array buffer.

Parameters:

theArray - Shared array.

theRange - Range of array elements to include in the buffer. The stride is assumed to be 1.

Method Detail

get

public short get(int i)

Obtain the given item from this buffer.

The get() method must not block the calling thread; if it does, all message I/O in MP will be blocked.

Overrides:

get in class SharedShortArrayBuf

Parameters:

i - Item index in the range 0 .. length()-1.

Returns:

Item at index i.

put

public void put(int i,
                short item)

Store the given item in this buffer.

The put() method must not block the calling thread; if it does, all message I/O in MP will be blocked.

Overrides:

put in class SharedShortArrayBuf

Parameters:

i - Item index in the range 0 .. length()-1.

item - Item to be stored at index i.

getReductionBuf

public Buf getReductionBuf(Op op)

Create a buffer for performing parallel reduction using the given binary operation. The results of the reduction are placed into this buffer.

Overrides:

getReductionBuf in class SharedShortArrayBuf

Parameters:

op - Binary operation.

Throws:

java.lang.ClassCastException - (unchecked exception) Thrown if this buffer's element data type and the given binary operation's argument data type are not the same.