edu.rit.mp.buf

Class Signed8BitIntegerMatrixBuf_1

java.lang.Object

edu.rit.mp.Buf

edu.rit.mp.Signed8BitIntegerBuf

edu.rit.mp.buf.Signed8BitIntegerMatrixBuf

edu.rit.mp.buf.Signed8BitIntegerMatrixBuf_1

public class Signed8BitIntegerMatrixBuf_1
extends Signed8BitIntegerMatrixBuf

Class Signed8BitIntegerMatrixBuf_1 provides a buffer for a matrix of signed 8-bit integer items sent or received using the Message Protocol (MP). The matrix row and column strides must both be 1. While an instance of class Signed8BitIntegerMatrixBuf_1 may be constructed directly, normally you will use a factory method in class Signed8BitIntegerBuf. See that class for further information.

Constructor Summary

Constructors

Constructor and Description
Signed8BitIntegerMatrixBuf_1(int[][] theMatrix, Range theRowRange, Range theColRange) Construct a new signed 8-bit integer matrix buffer.

Method Summary

Modifier and Type	Method and Description
int	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, int item) Store the given item in this buffer.

Methods inherited from class edu.rit.mp.buf.Signed8BitIntegerMatrixBuf

copy

Methods inherited from class edu.rit.mp.Signed8BitIntegerBuf

buffer, buffer, buffer, buffer, buffer, buffer, colSliceBuffer, colSliceBuffers, 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

Signed8BitIntegerMatrixBuf_1

public Signed8BitIntegerMatrixBuf_1(int[][] theMatrix,
                                    Range theRowRange,
                                    Range theColRange)

Construct a new signed 8-bit integer matrix buffer. It is assumed that the rows and columns of theMatrix are allocated and that each row of theMatrix has the same number of columns.

Parameters:

theMatrix - Matrix.

theRowRange - Range of rows to include. The stride is assumed to be 1.

theColRange - Range of columns to include. The stride is assumed to be 1.

Method Detail

get

public int 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 Signed8BitIntegerMatrixBuf

Parameters:

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

Returns:

Item at index i.

put

public void put(int i,
                int 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 Signed8BitIntegerMatrixBuf

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 Signed8BitIntegerMatrixBuf

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.