Uses of Class
org.apache.sysds.runtime.compress.CompressionSettings

Packages that use CompressionSettings

Package	Description
org.apache.sysds.runtime.compress
org.apache.sysds.runtime.compress.cocode
org.apache.sysds.runtime.compress.colgroup
org.apache.sysds.runtime.compress.estim

Uses of CompressionSettings in org.apache.sysds.runtime.compress

Methods in org.apache.sysds.runtime.compress that return CompressionSettings

Modifier and Type	Method and Description
CompressionSettings	CompressionSettingsBuilder.create() Create the CompressionSettings object to use in the compression.

Methods in org.apache.sysds.runtime.compress with parameters of type CompressionSettings

Modifier and Type	Method and Description
static org.apache.commons.lang3.tuple.Pair<MatrixBlock,CompressionStatistics>	CompressedMatrixBlockFactory.compress(MatrixBlock mb, CompressionSettings customSettings)
static org.apache.commons.lang3.tuple.Pair<MatrixBlock,CompressionStatistics>	CompressedMatrixBlockFactory.compress(MatrixBlock mb, int k, CompressionSettings compSettings) The main method for compressing the input matrix.
CompressionSettingsBuilder	CompressionSettingsBuilder.copySettings(CompressionSettings that) Copy the settings from another CompressionSettings Builder, modifies this, not that.
static ABitmap	BitmapEncoder.extractBitmap(int[] colIndices, MatrixBlock rawBlock, CompressionSettings compSettings) Generate uncompressed bitmaps for a set of columns in an uncompressed matrix block.

Constructors in org.apache.sysds.runtime.compress with parameters of type CompressionSettings

Constructor and Description
ReaderColumnSelectionDense(MatrixBlock data, int[] colIndices, CompressionSettings compSettings)
ReaderColumnSelectionDenseSample(MatrixBlock data, int[] colIndexes, int[] sampleIndexes, CompressionSettings compSettings)
ReaderColumnSelectionSparse(MatrixBlock data, int[] colIndexes, CompressionSettings compSettings)

Uses of CompressionSettings in org.apache.sysds.runtime.compress.cocode

Methods in org.apache.sysds.runtime.compress.cocode with parameters of type CompressionSettings

Modifier and Type	Method and Description
static List<int[]>	PlanningCoCoder.findCoCodesByPartitioning(CompressedSizeEstimator sizeEstimator, CompressedSizeInfo colInfos, int numRows, int k, CompressionSettings cs) Main entry point of CoCode.
List<int[]>	ColumnGroupPartitionerStatic.partitionColumns(List<Integer> groupCols, HashMap<Integer,PlanningCoCoder.GroupableColInfo> groupColsInfo, CompressionSettings cs)
List<int[]>	ColumnGroupPartitionerBinPacking.partitionColumns(List<Integer> groupCols, HashMap<Integer,PlanningCoCoder.GroupableColInfo> groupColsInfo, CompressionSettings cs)
abstract List<int[]>	ColumnGroupPartitioner.partitionColumns(List<Integer> groupCols, HashMap<Integer,PlanningCoCoder.GroupableColInfo> groupColsInfo, CompressionSettings cs) Partitions a list of columns into a list of partitions that contains subsets of columns.

Uses of CompressionSettings in org.apache.sysds.runtime.compress.colgroup

Methods in org.apache.sysds.runtime.compress.colgroup with parameters of type CompressionSettings

Modifier and Type	Method and Description
static List<ColGroup>	ColGroupFactory.assignColumns(int numCols, ColGroup[] colGroups, MatrixBlock rawBlock, CompressionSettings compSettings) Method for producing the final ColGroupList stored inside the CompressedMatrixBlock.
static ColGroup	ColGroupFactory.compress(int[] colIndexes, int rlen, ABitmap ubm, ColGroup.CompressionType compType, CompressionSettings cs, MatrixBlock rawMatrixBlock) Method for compressing an ColGroup.
static ColGroup[]	ColGroupFactory.compressColGroups(MatrixBlock in, HashMap<Integer,Double> compRatios, List<int[]> groups, CompressionSettings compSettings, int k) The actual compression method, that handles the logic of compressing multiple columns together.

Uses of CompressionSettings in org.apache.sysds.runtime.compress.estim

Methods in org.apache.sysds.runtime.compress.estim with parameters of type CompressionSettings

Modifier and Type	Method and Description
static CompressedSizeEstimator	CompressedSizeEstimatorFactory.getSizeEstimator(MatrixBlock data, CompressionSettings compSettings)

Constructors in org.apache.sysds.runtime.compress.estim with parameters of type CompressionSettings

Constructor and Description
CompressedSizeEstimatorExact(MatrixBlock data, CompressionSettings compSettings)
CompressedSizeEstimatorSample(MatrixBlock data, CompressionSettings compSettings, int sampleSize) CompressedSizeEstimatorSample, samples from the input data and estimates the size of the compressed matrix.