org.apache.sysds.runtime.data

Class DenseBlockDRB

java.lang.Object

org.apache.sysds.runtime.data.DenseBlock

org.apache.sysds.runtime.data.DenseBlockDRB

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

DenseBlockBool, DenseBlockFP32, DenseBlockFP64, DenseBlockInt32, DenseBlockInt64, DenseBlockString

public abstract class DenseBlockDRB
extends DenseBlock

See Also:

Serialized Form

Nested Class Summary

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

DenseBlock.Type

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	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 ol, int ou) Compute the number of non-zero values, which potentially makes a full pass over the underlying blocks in the row range.
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	pos(int r) Get the position for a given row within its associated block.
int	pos(int[] ix) Get the position for a given cell within the associated block.
int	pos(int r, int c) Get the position for a given row and column within the associated block.
void	reset(int rlen, int[] odims, double v) Resets the dense block by setting the given value.
DenseBlock	set(double v) Set the given value for the entire dense block (fill).
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).
int	size(int bix) Get the length of the given block.

Methods inherited from class org.apache.sysds.runtime.data.DenseBlock

capacity, estimateMemory, get, get, getCumODims, getDim, getLong, getNextIndexes, getString, incr, incr, index, isNumeric, numDims, numRows, reset, reset, reset, reset, reset, reset, set, set, set, set, set, set, set, set, set, set, setDims, size, toString, values, valuesAt

Methods inherited from class java.lang.Object

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

Method Detail

reset

public void reset(int rlen,
                  int[] odims,
                  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

odims - other dimensions

v - value

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 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

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

pos

public int pos(int[] ix)

Description copied from class: DenseBlock

Get the position for a given cell within the associated block.

Specified by:

pos in class DenseBlock

Parameters:

ix - cell indexes

Returns:

block position

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 ol,
                          int ou)

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)

ol - column lower index

ou - column upper index (exclusive)

Returns:

number of non-zeros

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(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