Package org.apache.sysds.lops
Class AppendG
- java.lang.Object
- 
- org.apache.sysds.lops.Lop
- 
- org.apache.sysds.lops.AppendG
 
 
- 
 public class AppendG extends Lop TODO Additional compiler enhancements: 1) Partial Shuffle Elimination - Any full or aligned blocks could be directly output from the mappers to the result index. We only need to shuffle, sort and aggregate partial blocks. However, this requires piggybacking changes, i.e., (1) operations with multiple result indexes, and (2) multiple operations with the same result index. 2) Group Elimination for Append Chains - If we have chains of rappend each intermediate is shuffled and aggregated. This is unnecessary if all offsets are known in advance. We could directly pack all rappends in one GMR map-phase followed by one group and subsequent aggregate. However, this requires an n-ary rappend or group (with multiple inputs).
- 
- 
Nested Class Summary- 
Nested classes/interfaces inherited from class org.apache.sysds.lops.LopLop.SimpleInstType, Lop.Type, Lop.VisitStatus
 
- 
 - 
Field SummaryFields Modifier and Type Field Description static StringOPCODE- 
Fields inherited from class org.apache.sysds.lops.Lop_beginColumn, _beginLine, _endColumn, _endLine, _filename, CP_CHILD_THREAD, CP_ROOT_THREAD_ID, DATATYPE_PREFIX, FILE_SEPARATOR, FRAME_VAR_NAME_PREFIX, INSTRUCTION_DELIMITOR, LITERAL_PREFIX, MATRIX_VAR_NAME_PREFIX, NAME_VALUE_SEPARATOR, OPERAND_DELIMITOR, PROCESS_PREFIX, SAMPLE_FRACTION, SCALAR_VAR_NAME_PREFIX, UPDATE_INPLACE_PREFIX, VALUETYPE_PREFIX, VARIABLE_NAME_PLACEHOLDER
 
- 
 - 
Constructor SummaryConstructors Constructor Description AppendG(Lop input1, Lop input2, Lop input3, Lop input4, Types.DataType dt, Types.ValueType vt, boolean cbind, Types.ExecType et)
 - 
Method SummaryAll Methods Instance Methods Concrete Methods Modifier and Type Method Description StringgetInstructions(String input_index1, String input_index2, String input_index3, String input_index4, String output_index)Method should be overridden if neededvoidinit(Lop input1, Lop input2, Lop input3, Lop input4, Types.DataType dt, Types.ValueType vt, Types.ExecType et)StringtoString()Method to have Lops print their state.- 
Methods inherited from class org.apache.sysds.lops.LopactivatePrefetch, addInput, addOutput, addToDag, createReachable, getAggType, getBeginColumn, getBeginLine, getBroadcastInput, getDataType, getEndColumn, getEndLine, getExecType, getFederatedOutput, getFilename, getID, getInputs, getInstructions, getInstructions, getInstructions, getInstructions, getInstructions, getInstructions, getInstructions, getInstructions, getInstructions, getInstructions, getInstructions, getLevel, getOutputParameters, getOutputs, getPrivacyConstraint, getProducesIntermediateOutput, getReachable, getSimpleInstructionType, getType, getValueType, getVisited, isAllOutputsCP, isDataExecLocation, isVariable, prefetchActivated, prepInputOperand, prepInputOperand, prepOperand, prepOperand, prepOutputOperand, prepOutputOperand, prepOutputOperand, prepScalarInputOperand, prepScalarInputOperand, prepScalarLabel, prepScalarOperand, printErrorLocation, removeConsumer, removeOutput, replaceInput, resetVisitStatus, setAllPositions, setBeginColumn, setBeginLine, setConsumerCount, setDataType, setEndColumn, setEndLine, setExecType, setFederatedOutput, setFilename, setPrivacyConstraint, setValueType, setVisited
 
- 
 
- 
- 
- 
Field Detail- 
OPCODEpublic static final String OPCODE - See Also:
- Constant Field Values
 
 
- 
 - 
Constructor Detail- 
AppendGpublic AppendG(Lop input1, Lop input2, Lop input3, Lop input4, Types.DataType dt, Types.ValueType vt, boolean cbind, Types.ExecType et) 
 
- 
 - 
Method Detail- 
initpublic void init(Lop input1, Lop input2, Lop input3, Lop input4, Types.DataType dt, Types.ValueType vt, Types.ExecType et) 
 - 
toStringpublic String toString() Description copied from class:LopMethod to have Lops print their state. This is for debugging purposes.
 - 
getInstructionspublic String getInstructions(String input_index1, String input_index2, String input_index3, String input_index4, String output_index) Description copied from class:LopMethod should be overridden if needed- Overrides:
- getInstructionsin class- Lop
- Parameters:
- input_index1- input 1
- input_index2- input 2
- input_index3- input 3
- input_index4- input 4
- output_index- output
- Returns:
- instructions as string
 
 
- 
 
-