Package org.apache.sysds.runtime.instructions.spark

Class CpmmSPInstruction

java.lang.Object

org.apache.sysds.runtime.instructions.Instruction

org.apache.sysds.runtime.instructions.spark.SPInstruction

org.apache.sysds.runtime.instructions.spark.ComputationSPInstruction

org.apache.sysds.runtime.instructions.spark.BinarySPInstruction

org.apache.sysds.runtime.instructions.spark.AggregateBinarySPInstruction

org.apache.sysds.runtime.instructions.spark.CpmmSPInstruction

All Implemented Interfaces:

LineageTraceable

public class CpmmSPInstruction
extends AggregateBinarySPInstruction

Cpmm: cross-product matrix multiplication operation (distributed matrix multiply by join over common dimension and subsequent aggregation of partial results). NOTE: There is additional optimization potential by preventing aggregation for a single block on the common dimension. However, in such a case we would never pick cpmm because this would result in a degree of parallelism of 1.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.sysds.runtime.instructions.spark.SPInstruction

SPInstruction.SPType

Nested classes/interfaces inherited from class org.apache.sysds.runtime.instructions.Instruction

Instruction.IType

Field Summary

Fields inherited from class org.apache.sysds.runtime.instructions.spark.ComputationSPInstruction

input1, input2, input3, output

Fields inherited from class org.apache.sysds.runtime.instructions.Instruction

DATATYPE_PREFIX, FEDERATED_INST_PREFIX, GPU_INST_PREFIX, INSTRUCTION_DELIM, LITERAL_PREFIX, OOC_INST_PREFIX, OPERAND_DELIM, SP_INST_PREFIX, VALUETYPE_PREFIX

Method Summary

Modifier and Type	Method	Description
AggBinaryOp.SparkAggType	getAggType()
static CpmmSPInstruction	parseInstruction(String str)
void	processInstruction(ExecutionContext ec)	This method should be used to execute the instruction.

Methods inherited from class org.apache.sysds.runtime.instructions.spark.ComputationSPInstruction

getLineageItem, getOutputVariableName

Methods inherited from class org.apache.sysds.runtime.instructions.spark.SPInstruction

getGraphString, getSPInstructionType, getType, postprocessInstruction, preprocessInstruction, requiresLabelUpdate

Methods inherited from class org.apache.sysds.runtime.instructions.Instruction

getBeginColumn, getBeginLine, getEndColumn, getEndLine, getExtendedOpcode, getFilename, getInstID, getInstructionString, getLineNum, getOpcode, getOperator, printMe, setInstID, setLocation, setLocation, setLocation, setLocation, toString, updateInstructionThreadID

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.sysds.runtime.lineage.LineageTraceable

getLineageItems, hasSingleLineage

Method Details

parseInstruction

public static CpmmSPInstruction parseInstruction(String str)

processInstruction

public void processInstruction(ExecutionContext ec)

Description copied from class: Instruction

This method should be used to execute the instruction.

Specified by:

processInstruction in class SPInstruction

Parameters:

ec - execution context

getAggType

public AggBinaryOp.SparkAggType getAggType()