org.apache.sysds.runtime.compress.colgroup

Class ColGroupSizes

java.lang.Object

org.apache.sysds.runtime.compress.colgroup.ColGroupSizes

public class ColGroupSizes
extends Object

Constructor Summary

Constructors

Constructor and Description
ColGroupSizes()

Method Summary

Modifier and Type	Method and Description
static long	estimateInMemorySizeDDC(int nrCols, int uniqueVals, boolean lossy)
static long	estimateInMemorySizeDDC1(int nrCols, int uniqueVals, int dataLength, boolean lossy)
static long	estimateInMemorySizeDDC2(int nrCols, int uniqueVals, int dataLength, boolean lossy)
static long	estimateInMemorySizeGroup(int nrColumns)
static long	estimateInMemorySizeGroupValue(int nrColumns, int nrValues, boolean lossy)
static long	estimateInMemorySizeOffset(int nrColumns, int nrValues, int pointers, int offsetLength, boolean lossy)
static long	estimateInMemorySizeOLE(int nrColumns, int nrValues, int offsetLength, int nrRows, boolean lossy)
static long	estimateInMemorySizeRLE(int nrColumns, int nrValues, int nrRuns, int nrRows, boolean lossy)
static long	estimateInMemorySizeUncompressed(int nrRows, int nrColumns, double sparsity)

Methods inherited from class java.lang.Object

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

Constructor Detail

ColGroupSizes

public ColGroupSizes()

Method Detail

estimateInMemorySizeGroup

public static long estimateInMemorySizeGroup(int nrColumns)

estimateInMemorySizeGroupValue

public static long estimateInMemorySizeGroupValue(int nrColumns,
                                                  int nrValues,
                                                  boolean lossy)

estimateInMemorySizeDDC

public static long estimateInMemorySizeDDC(int nrCols,
                                           int uniqueVals,
                                           boolean lossy)

estimateInMemorySizeDDC1

public static long estimateInMemorySizeDDC1(int nrCols,
                                            int uniqueVals,
                                            int dataLength,
                                            boolean lossy)

estimateInMemorySizeDDC2

public static long estimateInMemorySizeDDC2(int nrCols,
                                            int uniqueVals,
                                            int dataLength,
                                            boolean lossy)

estimateInMemorySizeOffset

public static long estimateInMemorySizeOffset(int nrColumns,
                                              int nrValues,
                                              int pointers,
                                              int offsetLength,
                                              boolean lossy)

estimateInMemorySizeOLE

public static long estimateInMemorySizeOLE(int nrColumns,
                                           int nrValues,
                                           int offsetLength,
                                           int nrRows,
                                           boolean lossy)

estimateInMemorySizeRLE

public static long estimateInMemorySizeRLE(int nrColumns,
                                           int nrValues,
                                           int nrRuns,
                                           int nrRows,
                                           boolean lossy)

estimateInMemorySizeUncompressed

public static long estimateInMemorySizeUncompressed(int nrRows,
                                                    int nrColumns,
                                                    double sparsity)