public abstract class ColGroupDDC extends ColGroupValue
ColGroup.CompressionType| Modifier and Type | Method and Description | 
|---|---|
| void | countNonZerosPerRow(int[] rnnz,
                   int rl,
                   int ru)Count the number of non-zeros per row | 
| void | decompressToBlock(MatrixBlock target,
                 int colpos)Decompress to block. | 
| void | decompressToBlock(MatrixBlock target,
                 int[] colIndexTargets)Decompress the contents of this column group into uncompressed packed columns | 
| void | decompressToBlock(MatrixBlock target,
                 int rl,
                 int ru)Decompress the contents of this column group into the specified full matrix block. | 
| double | get(int r,
   int c)Get the value at a global row/column position. | 
| ColGroup.CompressionType | getCompType()Obtain the compression type. | 
| int[] | getCounts(int[] counts) | 
| int[] | getCounts(int rl,
         int ru,
         int[] counts) | 
| Iterator<IJV> | getIterator(int rl,
           int ru,
           boolean inclZeros,
           boolean rowMajor)Create a column group iterator for a row index range. | 
| org.apache.sysds.runtime.compress.colgroup.ColGroup.ColGroupRowIterator | getRowIterator(int rl,
              int ru)Create a dense row iterator for a row index range. | 
| void | leftMultByMatrix(double[] a,
                double[] c,
                int numVals,
                double[] values,
                int numRows,
                int numCols,
                int rl,
                int ru,
                int voff)Multiply the slice of the matrix that this column group represents by a row vector on the left (the original
 column vector is assumed to be transposed already i.e. | 
| void | leftMultByRowVector(double[] a,
                   double[] result,
                   int numVals)Multiply the slice of the matrix that this column group represents by a row vector on the left (the original
 column vector is assumed to be transposed already i.e. | 
| void | leftMultByRowVector(double[] a,
                   double[] c,
                   int numVals,
                   double[] values)Multiply the slice of the matrix that this column group represents by a row vector on the left (the original
 column vector is assumed to be transposed already i.e. | 
| void | postScaling(double[] values,
           double[] vals,
           double[] c,
           int numVals) | 
| void | postScaling(double[] values,
           double[] vals,
           double[] c,
           int numVals,
           int i,
           int totalCols) | 
| double[] | preAggregate(double[] a,
            int numVals) | 
| double[] | preAggregate(double[] a,
            int numVals,
            int aRows)Pre aggregates a specific row from the input a which can be a row or a matrix. | 
| void | rightMultByMatrix(double[] b,
                 double[] c,
                 int numVals,
                 double[] values,
                 int rl,
                 int ru,
                 int vOff) | 
| String | toString() | 
cleanupThreadLocalMemory, getByteValues, getCounts, getCounts, getExactSizeOnDisk, getIfCountsType, getNumValues, getValues, getValuesAsBlock, isLossy, readFields, setupThreadLocalMemory, unaryAggregateOperations, unaryAggregateOperations, writeestimateInMemorySize, getColIndex, getColIndices, getNumCols, getNumRows, rightMultByVector, scalarOperation, shiftColIndicespublic ColGroup.CompressionType getCompType()
ColGroupgetCompType in class ColGrouppublic void decompressToBlock(MatrixBlock target, int rl, int ru)
ColGroupdecompressToBlock in class ColGrouptarget - a matrix block where the columns covered by this column group have not yet been filled in.rl - row lowerru - row upperpublic void decompressToBlock(MatrixBlock target, int[] colIndexTargets)
ColGroupdecompressToBlock in class ColGrouptarget - a dense matrix block. The block must have enough space to hold the contents of this column
                        group.colIndexTargets - array that maps column indices in the original matrix block to columns of target.public void decompressToBlock(MatrixBlock target, int colpos)
ColGroupdecompressToBlock in class ColGrouptarget - dense output vectorcolpos - column to decompress, error if larger or equal numColspublic double get(int r,
                  int c)
ColGrouppublic void countNonZerosPerRow(int[] rnnz,
                                int rl,
                                int ru)
ColGroupcountNonZerosPerRow in class ColGrouprnnz - non-zeros per rowrl - row lower bound, inclusiveru - row upper bound, exclusivepublic void postScaling(double[] values,
                        double[] vals,
                        double[] c,
                        int numVals)
public void postScaling(double[] values,
                        double[] vals,
                        double[] c,
                        int numVals,
                        int i,
                        int totalCols)
public int[] getCounts(int[] counts)
getCounts in class ColGroupValuepublic int[] getCounts(int rl,
                       int ru,
                       int[] counts)
getCounts in class ColGroupValuepublic void rightMultByMatrix(double[] b,
                              double[] c,
                              int numVals,
                              double[] values,
                              int rl,
                              int ru,
                              int vOff)
rightMultByMatrix in class ColGrouppublic void leftMultByMatrix(double[] a,
                             double[] c,
                             int numVals,
                             double[] values,
                             int numRows,
                             int numCols,
                             int rl,
                             int ru,
                             int voff)
ColGroupleftMultByMatrix in class ColGroupa - matrix to left multiplyc - matrix block resultnumVals - The Number of values contained in the Column.values - The materialized list of values contained in the dictionary.numRows - The number of rows in the matrix inputnumCols - The number of columns in the colGroups parent matrix.rl - The row to start the matrix multiplication fromru - The row to stop the matrix multiplication at.voff - The offset into the first argument matrix to start at.public void leftMultByRowVector(double[] a,
                                double[] result,
                                int numVals)
ColGroupleftMultByRowVector in class ColGroupa - row vectorresult - matrix block resultnumVals - The Number of values contained in the Column.public double[] preAggregate(double[] a,
                             int numVals)
public double[] preAggregate(double[] a,
                             int numVals,
                             int aRows)
a - the input vector or matrix to multiply withnumVals - the number of values contained in the dictionaryaRows - the row index from apublic void leftMultByRowVector(double[] a,
                                double[] c,
                                int numVals,
                                double[] values)
ColGroupleftMultByRowVector in class ColGroupa - row vectorc - matrix block resultnumVals - The Number of values contained in the Column.values - The materialized list of values contained in the dictionary.public Iterator<IJV> getIterator(int rl, int ru, boolean inclZeros, boolean rowMajor)
ColGroupgetIterator in class ColGrouprl - row lower index, inclusiveru - row upper index, exclusiveinclZeros - include zero values into scope of iteratorrowMajor - use a row major iteration orderpublic org.apache.sysds.runtime.compress.colgroup.ColGroup.ColGroupRowIterator getRowIterator(int rl,
                                                                                              int ru)
ColGroupgetRowIterator in class ColGrouprl - row lower index, inclusiveru - row upper index, exclusivepublic String toString()
toString in class ColGroupValueCopyright © 2020 The Apache Software Foundation. All rights reserved.