Package org.apache.sysds.runtime.compress.colgroup

Class ASDCZero

java.lang.Object

org.apache.sysds.runtime.compress.colgroup.AColGroup

org.apache.sysds.runtime.compress.colgroup.AColGroupCompressed

org.apache.sysds.runtime.compress.colgroup.ADictBasedColGroup

org.apache.sysds.runtime.compress.colgroup.AColGroupValue

org.apache.sysds.runtime.compress.colgroup.APreAgg

org.apache.sysds.runtime.compress.colgroup.ASDCZero

All Implemented Interfaces:

Serializable, AOffsetsGroup

Direct Known Subclasses:

ColGroupSDCSingleZeros, ColGroupSDCZeros

public abstract class ASDCZero
extends APreAgg
implements AOffsetsGroup

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.sysds.runtime.compress.colgroup.AColGroup

AColGroup.CompressionType

Method Summary

Modifier and Type	Method	Description
void	decompressToDenseBlock(DenseBlock db, int rl, int ru, int offR, int offC, AIterator it)
void	decompressToDenseBlockDenseDictionary(DenseBlock db, int rl, int ru, int offR, int offC, AIterator it)
abstract void	decompressToDenseBlockDenseDictionaryWithProvidedIterator(DenseBlock db, int rl, int ru, int offR, int offC, double[] values, AIterator it)
AIterator	getIterator(int row)
int	getNumRows()
AOffset	getOffsets()
void	leftMultByMatrixNoPreAgg(MatrixBlock matrix, MatrixBlock result, int rl, int ru, int cl, int cu)	Left multiply with this column group.

Methods inherited from class org.apache.sysds.runtime.compress.colgroup.APreAgg

getPreAggregateSize, leftMultByAColGroup, mmWithDictionary, preAggregate, preAggregateDense, preAggregateSparse, preAggregateThatIndexStructure, tsmmAColGroup

Methods inherited from class org.apache.sysds.runtime.compress.colgroup.AColGroupValue

centralMoment, computeColSums, estimateInMemorySize, getCounts, getNumberNonZeros, getNumValues, replace, rexpandCols, toString

Methods inherited from class org.apache.sysds.runtime.compress.colgroup.ADictBasedColGroup

decompressToDenseBlock, decompressToSparseBlock, getDictionary, getExactSizeOnDisk, rightMultByMatrix, write

Methods inherited from class org.apache.sysds.runtime.compress.colgroup.AColGroupCompressed

getMax, getMin, getSum, isEmpty, preAggRows, tsmm, unaryAggregateOperations, unaryAggregateOperations

Methods inherited from class org.apache.sysds.runtime.compress.colgroup.AColGroup

append, appendN, binaryRowOpLeft, binaryRowOpRight, colSum, containsValue, decompressToDenseBlock, decompressToSparseBlock, get, getColIndices, getCompressionScheme, getCompType, getCost, getIdx, getNumCols, rightMultByMatrix, scalarOperation, shiftColIndices, sliceColumn, sliceColumns, sliceRows, unaryOperation

Methods inherited from class java.lang.Object

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

Method Detail

getNumRows

public int getNumRows()

leftMultByMatrixNoPreAgg

public final void leftMultByMatrixNoPreAgg(MatrixBlock matrix,
                                           MatrixBlock result,
                                           int rl,
                                           int ru,
                                           int cl,
                                           int cu)

Description copied from class: AColGroup

Left multiply with this column group.

Specified by:

leftMultByMatrixNoPreAgg in class AColGroup

Parameters:

matrix - The matrix to multiply with on the left

result - The result to output the values into, always dense for the purpose of the column groups parallelizing

rl - The row to begin the multiplication from on the lhs matrix

ru - The row to end the multiplication at on the lhs matrix

cl - The column to begin the multiplication from on the lhs matrix

cu - The column to end the multiplication at on the lhs matrix

decompressToDenseBlock

public void decompressToDenseBlock(DenseBlock db,
                                   int rl,
                                   int ru,
                                   int offR,
                                   int offC,
                                   AIterator it)

decompressToDenseBlockDenseDictionary

public void decompressToDenseBlockDenseDictionary(DenseBlock db,
                                                  int rl,
                                                  int ru,
                                                  int offR,
                                                  int offC,
                                                  AIterator it)

decompressToDenseBlockDenseDictionaryWithProvidedIterator

public abstract void decompressToDenseBlockDenseDictionaryWithProvidedIterator(DenseBlock db,
                                                                               int rl,
                                                                               int ru,
                                                                               int offR,
                                                                               int offC,
                                                                               double[] values,
                                                                               AIterator it)

getIterator

public AIterator getIterator(int row)

getOffsets

public AOffset getOffsets()

Specified by:

getOffsets in interface AOffsetsGroup