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

Class ColGroupSizes

java.lang.Object

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

public final class ColGroupSizes
extends Object

Constructor Summary

Constructors

Constructor	Description
ColGroupSizes()

Method Summary

Modifier and Type	Method	Description
static long	estimateInMemorySizeCONST(int nrColumns, double tupleSparsity, boolean lossy)
static long	estimateInMemorySizeDDC(int nrCols, int numTuples, int dataLength, double tupleSparsity, boolean lossy)
static long	estimateInMemorySizeEMPTY(int nrColumns)
static long	estimateInMemorySizeGroup(int nrColumns)
static long	estimateInMemorySizeGroupValue(int nrColumns, int nrValues, double tupleSparsity, boolean lossy)
static long	estimateInMemorySizeOffset(int nrColumns, int nrValues, int pointers, int offsetLength, double tupleSparsity, boolean lossy)
static long	estimateInMemorySizeOLE(int nrColumns, int nrValues, int offsetLength, int nrRows, double tupleSparsity, boolean lossy)
static long	estimateInMemorySizeRLE(int nrColumns, int nrValues, int nrRuns, int nrRows, double tupleSparsity, boolean lossy)
static long	estimateInMemorySizeSDC(int nrColumns, int nrValues, int nrRows, int largestOff, double tupleSparsity, boolean largestOffZero, 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,
                                                  double tupleSparsity,
                                                  boolean lossy)

estimateInMemorySizeDDC

public static long estimateInMemorySizeDDC(int nrCols,
                                           int numTuples,
                                           int dataLength,
                                           double tupleSparsity,
                                           boolean lossy)

estimateInMemorySizeOffset

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

estimateInMemorySizeOLE

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

estimateInMemorySizeRLE

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

estimateInMemorySizeSDC

public static long estimateInMemorySizeSDC(int nrColumns,
                                           int nrValues,
                                           int nrRows,
                                           int largestOff,
                                           double tupleSparsity,
                                           boolean largestOffZero,
                                           boolean lossy)

estimateInMemorySizeCONST

public static long estimateInMemorySizeCONST(int nrColumns,
                                             double tupleSparsity,
                                             boolean lossy)

estimateInMemorySizeEMPTY

public static long estimateInMemorySizeEMPTY(int nrColumns)

estimateInMemorySizeUncompressed

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