org.apache.sysml.runtime.matrix.data

Class DenseBlockDRB

java.lang.Object

org.apache.sysml.runtime.matrix.data.DenseBlock

org.apache.sysml.runtime.matrix.data.DenseBlockDRB

All Implemented Interfaces:

Serializable

public class DenseBlockDRB
extends DenseBlock

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.sysml.runtime.matrix.data.DenseBlock

DenseBlock.Type

Constructor Summary

Constructors

Constructor and Description
DenseBlockDRB(double[] data, int rlen, int clen)
DenseBlockDRB(int rlen, int clen)

Method Summary

Modifier and Type	Method and Description
int	blockSize() Get the number of rows per block, except last one.
int	blockSize(int bix) Get the number of rows of the given block.
long	capacity() Get the total length of allocated blocks.
long	countNonZeros() Compute the number of non-zero values, which potentially makes a full pass over the underlying blocks.
int	countNonZeros(int r) Compute the number of non-zero values for the given row, which potentially makes a full pass over the underlying row.
long	countNonZeros(int rl, int ru, int cl, int cu) Compute the number of non-zero values, which potentially makes a full pass over the underlying blocks in the row range.
double	get(int r, int c) Get the value for a given row and column.
void	incr(int r, int c) Increments the given value for a given row and column.
void	incr(int r, int c, double delta) Increments the given value for a given row and column by delta.
int	index(int r) Get the block index for a given row.
boolean	isContiguous() Indicates if the dense block has a single underlying block, i.e., if numBlocks==1.
boolean	isContiguous(int rl, int ru) Indicates if the dense block has a single underlying block for the given row range.
int	numBlocks() Get the number of allocated blocks.
int	numRows() Get the number of rows.
int	pos(int r) Get the position for a given row within its associated block.
int	pos(int r, int c) Get the position for a given row and column within the associated block.
void	reset() Resets the dense block by deleting non-zero values.
void	reset(int rlen, int clen) Resets the dense block by deleting non-zero values.
void	reset(int rlen, int clen, double v) Resets the dense block by setting the given value.
DenseBlock	set(DenseBlock db) Copy the given dense block.
DenseBlock	set(double v) Set the given value for the entire dense block (fill).
DenseBlock	set(int r, double[] v) Copy the given vector into the given row.
DenseBlock	set(int r, int c, double v) Set the given value for a given row and column.
DenseBlock	set(int rl, int ru, int cl, int cu, DenseBlock db) Copy the given dense block into the specified index range.
DenseBlock	set(int rl, int ru, int cl, int cu, double v) Set the given value for an entire index range of the dense block (fill).
long	size() Get the length of the dense block as the product of row and column dimensions.
int	size(int bix) Get the length of the given block.
String	toString()
double[][]	values() Get the allocated blocks.
double[]	values(int r) Get the allocated block for the given row.
double[]	valuesAt(int bix) Get an allocated block.

Methods inherited from class org.apache.sysml.runtime.matrix.data.DenseBlock

set, set

Methods inherited from class java.lang.Object

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

Constructor Detail

DenseBlockDRB

public DenseBlockDRB(int rlen,
                     int clen)

DenseBlockDRB

public DenseBlockDRB(double[] data,
                     int rlen,
                     int clen)

Method Detail

reset

public void reset()

Description copied from class: DenseBlock

Resets the dense block by deleting non-zero values. After this call all countNonZeros() calls are guaranteed to return 0.

Specified by:

reset in class DenseBlock

reset

public void reset(int rlen,
                  int clen)

Description copied from class: DenseBlock

Resets the dense block by deleting non-zero values. After this call all countNonZeros() calls are guaranteed to return 0. If the new dimensions exceed the current capacity, the underlying storage is extended accordingly.

Specified by:

reset in class DenseBlock

Parameters:

rlen - number of rows

clen - number of columns

reset

public void reset(int rlen,
                  int clen,
                  double v)

Description copied from class: DenseBlock

Resets the dense block by setting the given value.

Specified by:

reset in class DenseBlock

Parameters:

rlen - number of rows

clen - number of columns

v - value

numRows

public int numRows()

Description copied from class: DenseBlock

Get the number of rows.

Specified by:

numRows in class DenseBlock

Returns:

number of rows

numBlocks

public int numBlocks()

Description copied from class: DenseBlock

Get the number of allocated blocks.

Specified by:

numBlocks in class DenseBlock

Returns:

number of blocks

blockSize

public int blockSize()

Description copied from class: DenseBlock

Get the number of rows per block, except last one.

Specified by:

blockSize in class DenseBlock

Returns:

number of rows in block

blockSize

public int blockSize(int bix)

Description copied from class: DenseBlock

Get the number of rows of the given block.

Specified by:

blockSize in class DenseBlock

Parameters:

bix - block index

Returns:

number of rows in block

isContiguous

public boolean isContiguous()

Description copied from class: DenseBlock

Indicates if the dense block has a single underlying block, i.e., if numBlocks==1.

Specified by:

isContiguous in class DenseBlock

Returns:

true if single block

isContiguous

public boolean isContiguous(int rl,
                            int ru)

Description copied from class: DenseBlock

Indicates if the dense block has a single underlying block for the given row range.

Specified by:

isContiguous in class DenseBlock

Parameters:

rl - row lower index

ru - row upper index (inclusive)

Returns:

true if single block in row range

size

public long size()

Description copied from class: DenseBlock

Get the length of the dense block as the product of row and column dimensions.

Specified by:

size in class DenseBlock

Returns:

length

size

public int size(int bix)

Description copied from class: DenseBlock

Get the length of the given block.

Specified by:

size in class DenseBlock

Parameters:

bix - block index

Returns:

length

capacity

public long capacity()

Description copied from class: DenseBlock

Get the total length of allocated blocks.

Specified by:

capacity in class DenseBlock

Returns:

capacity

countNonZeros

public long countNonZeros()

Description copied from class: DenseBlock

Compute the number of non-zero values, which potentially makes a full pass over the underlying blocks.

Specified by:

countNonZeros in class DenseBlock

Returns:

number of non-zeros

countNonZeros

public int countNonZeros(int r)

Description copied from class: DenseBlock

Compute the number of non-zero values for the given row, which potentially makes a full pass over the underlying row.

Specified by:

countNonZeros in class DenseBlock

Parameters:

r - row index

Returns:

number of non-zeros

countNonZeros

public long countNonZeros(int rl,
                          int ru,
                          int cl,
                          int cu)

Description copied from class: DenseBlock

Compute the number of non-zero values, which potentially makes a full pass over the underlying blocks in the row range.

Specified by:

countNonZeros in class DenseBlock

Parameters:

rl - row lower index

ru - row upper index (exclusive)

cl - column lower index

cu - column upper index (exclusive)

Returns:

number of non-zeros

values

public double[][] values()

Description copied from class: DenseBlock

Get the allocated blocks.

Specified by:

values in class DenseBlock

Returns:

blocks

values

public double[] values(int r)

Description copied from class: DenseBlock

Get the allocated block for the given row. This call is equivalent to valuesAt(indexes(r)).

Specified by:

values in class DenseBlock

Parameters:

r - row index

Returns:

block

valuesAt

public double[] valuesAt(int bix)

Description copied from class: DenseBlock

Get an allocated block.

Specified by:

valuesAt in class DenseBlock

Parameters:

bix - block index

Returns:

block

index

public int index(int r)

Description copied from class: DenseBlock

Get the block index for a given row.

Specified by:

index in class DenseBlock

Parameters:

r - row index

Returns:

block index

pos

public int pos(int r)

Description copied from class: DenseBlock

Get the position for a given row within its associated block.

Specified by:

pos in class DenseBlock

Parameters:

r - row index

Returns:

block position

pos

public int pos(int r,
               int c)

Description copied from class: DenseBlock

Get the position for a given row and column within the associated block.

Specified by:

pos in class DenseBlock

Parameters:

r - row index

c - column index

Returns:

block position

incr

public void incr(int r,
                 int c)

Description copied from class: DenseBlock

Increments the given value for a given row and column.

Specified by:

incr in class DenseBlock

Parameters:

r - row index

c - column index

incr

public void incr(int r,
                 int c,
                 double delta)

Description copied from class: DenseBlock

Increments the given value for a given row and column by delta.

Specified by:

incr in class DenseBlock

Parameters:

r - row index

c - column index

delta - increment value

set

public DenseBlock set(double v)

Description copied from class: DenseBlock

Set the given value for the entire dense block (fill).

Specified by:

set in class DenseBlock

Parameters:

v - value

Returns:

self

set

public DenseBlock set(int rl,
                      int ru,
                      int cl,
                      int cu,
                      double v)

Description copied from class: DenseBlock

Set the given value for an entire index range of the dense block (fill).

Specified by:

set in class DenseBlock

Parameters:

rl - row lower index

ru - row upper index (exclusive)

cl - column lower index

cu - column upper index (exclusive)

v - value

Returns:

self

set

public DenseBlock set(int r,
                      int c,
                      double v)

Description copied from class: DenseBlock

Set the given value for a given row and column.

Specified by:

set in class DenseBlock

Parameters:

r - row index

c - column index

v - value

Returns:

self

set

public DenseBlock set(DenseBlock db)

Description copied from class: DenseBlock

Copy the given dense block.

Specified by:

set in class DenseBlock

Parameters:

db - dense block

Returns:

self

set

public DenseBlock set(int rl,
                      int ru,
                      int cl,
                      int cu,
                      DenseBlock db)

Description copied from class: DenseBlock

Copy the given dense block into the specified index range.

Specified by:

set in class DenseBlock

Parameters:

rl - row lower index

ru - row upper index (exclusive)

cl - column lower index

cu - column upper index (exclusive)

db - dense block

Returns:

self

set

public DenseBlock set(int r,
                      double[] v)

Description copied from class: DenseBlock

Copy the given vector into the given row.

Specified by:

set in class DenseBlock

Parameters:

r - row index

v - value vector

Returns:

self

get

public double get(int r,
                  int c)

Description copied from class: DenseBlock

Get the value for a given row and column.

Specified by:

get in class DenseBlock

Parameters:

r - row index

c - column index

Returns:

value

toString

public String toString()

Specified by:

toString in class DenseBlock