com.inaccel.coral.shm

Class SharedDoubleMatrix

java.lang.Object

com.inaccel.coral.linalg.Matrix<T>

com.inaccel.coral.shm.SharedAbstractMatrix<SharedDoubleMatrix>

com.inaccel.coral.shm.SharedDoubleMatrix

All Implemented Interfaces:

BackedByCube, SharedMemory, Serializable

public class SharedDoubleMatrix
extends SharedAbstractMatrix<SharedDoubleMatrix>

A shared double matrix.

See Also:

Serialized Form

Field Summary

Fields inherited from class com.inaccel.coral.shm.SharedAbstractMatrix

cube

Constructor Summary

Constructors

Constructor and Description
SharedDoubleMatrix(int rows, int cols) Constructs a rows-by-cols shared double matrix.

Method Summary

Modifier and Type	Method and Description
double[][]	array() Returns the double array that backs this matrix.
void	get(double[][] array) Absolute bulk get method.
void	get(double[][] array, int x, int y) Absolute bulk get method.
double	get(int i, int j) Absolute get method Reads the double at the given index.
DoubleBuffer[]	map() Maps the shared memory cube of this shared memory matrix.
void	put(double[][] array) Absolute bulk put method.
void	put(double[][] array, int x, int y) Absolute bulk put method.
void	put(int i, int j, double value) Absolute put method.
int	unit() Returns the unit size (in bytes) of this shared matrix.

Methods inherited from class com.inaccel.coral.shm.SharedAbstractMatrix

alloc, cube, free

Methods inherited from class com.inaccel.coral.linalg.Matrix

numCols, numColsWithAttributes, numMetaCols, numMetaRows, numPaddingCols, numPaddingRows, numRows, numRowsWithAttributes, setColAttributes, setRowAttributes

Methods inherited from class java.lang.Object

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

Constructor Detail

SharedDoubleMatrix

public SharedDoubleMatrix(int rows,
                          int cols)

Constructs a rows-by-cols shared double matrix.

Parameters:

rows - Number of rows.

cols - Number of colums.

Method Detail

map

public DoubleBuffer[] map()

Maps the shared memory cube of this shared memory matrix.

Specified by:

map in class SharedAbstractMatrix<SharedDoubleMatrix>

Returns:

The mapped double buffer.

array

public double[][] array()

Returns the double array that backs this matrix. Modifications to the content of this matrix will not cause the returned array's content to be modified, and vice versa.

Returns:

The array that backs this matrix.

get

public double get(int i,
                  int j)

Absolute get method Reads the double at the given index.

Parameters:

i - The row index from which the double will be read.

j - The column index from which the double will be read.

Returns:

The double at the given index.

get

public void get(double[][] array,
                int x,
                int y)

Absolute bulk get method. Reads the double array at the given index.

Parameters:

array - The double array at the given index.

x - The row index from which the double array will be read.

y - The column index from which the double array will be read.

get

public void get(double[][] array)

Absolute bulk get method. Reads the double array.

Parameters:

array - The double array.

put

public void put(int i,
                int j,
                double value)

Absolute put method. Writes the given double into this matrix at the given index.

Parameters:

i - The row index at which the double will be written.

j - The column index at which the double will be written.

value - The double to be written.

put

public void put(double[][] array,
                int x,
                int y)

Absolute bulk put method. Writes the given double array into this matrix at the given index.

Parameters:

array - The double array to be written.

x - The row index at which the double array will be written.

y - The column index at which the double array will be written.

put

public void put(double[][] array)

Absolute bulk put method. Writes the given double array into this matrix.

Parameters:

array - The double array to be written.

unit

public int unit()

Returns the unit size (in bytes) of this shared matrix.

Returns:

The unit size.