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Declarative Machine Learning
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.sysml.runtime.instructions.mr;
import org.apache.sysml.runtime.DMLRuntimeException;
import org.apache.sysml.runtime.instructions.InstructionUtils;
import org.apache.sysml.runtime.matrix.data.MatrixIndexes;
import org.apache.sysml.runtime.matrix.data.MatrixValue;
import org.apache.sysml.runtime.matrix.data.OperationsOnMatrixValues;
import org.apache.sysml.runtime.matrix.mapred.CachedValueMap;
import org.apache.sysml.runtime.matrix.mapred.IndexedMatrixValue;
import org.apache.sysml.runtime.matrix.operators.BinaryOperator;
import org.apache.sysml.runtime.matrix.operators.Operator;
public class BinaryInstruction extends BinaryMRInstructionBase
{
public BinaryInstruction(Operator op, byte in1, byte in2, byte out, String istr)
{
super(op, in1, in2, out);
mrtype = MRINSTRUCTION_TYPE.ArithmeticBinary;
instString = istr;
}
public static BinaryInstruction parseInstruction ( String str )
throws DMLRuntimeException
{
InstructionUtils.checkNumFields ( str, 3 );
String[] parts = InstructionUtils.getInstructionParts ( str );
byte in1, in2, out;
String opcode = parts[0];
in1 = Byte.parseByte(parts[1]);
in2 = Byte.parseByte(parts[2]);
out = Byte.parseByte(parts[3]);
BinaryOperator bop = InstructionUtils.parseBinaryOperator(opcode);
if( bop != null )
return new BinaryInstruction(bop, in1, in2, out, str);
else
return null;
}
@Override
public void processInstruction(Class valueClass,
CachedValueMap cachedValues, IndexedMatrixValue tempValue, IndexedMatrixValue zeroInput,
int blockRowFactor, int blockColFactor)
throws DMLRuntimeException {
IndexedMatrixValue in1=cachedValues.getFirst(input1);
IndexedMatrixValue in2=cachedValues.getFirst(input2);
if(in1==null && in2==null)
return;
//allocate space for the output value
//try to avoid coping as much as possible
IndexedMatrixValue out;
if( (output!=input1 && output!=input2)
|| (output==input1 && in1==null)
|| (output==input2 && in2==null) )
out=cachedValues.holdPlace(output, valueClass);
else
out=tempValue;
//if one of the inputs is null, then it is a all zero block
MatrixIndexes finalIndexes=null;
if(in1==null)
{
in1=zeroInput;
in1.getValue().reset(in2.getValue().getNumRows(),
in2.getValue().getNumColumns());
finalIndexes=in2.getIndexes();
}else
finalIndexes=in1.getIndexes();
if(in2==null)
{
in2=zeroInput;
in2.getValue().reset(in1.getValue().getNumRows(),
in1.getValue().getNumColumns());
}
//process instruction
out.getIndexes().setIndexes(finalIndexes);
OperationsOnMatrixValues.performBinaryIgnoreIndexes(in1.getValue(),
in2.getValue(), out.getValue(), ((BinaryOperator)optr));
//put the output value in the cache
if(out==tempValue)
cachedValues.add(output, out);
}
}