org.apache.sysml.runtime.instructions.mr.RangeBasedReIndexInstruction Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of systemml Show documentation
Show all versions of systemml Show documentation
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 java.util.ArrayList;
import org.apache.sysml.runtime.DMLRuntimeException;
import org.apache.sysml.runtime.instructions.InstructionUtils;
import org.apache.sysml.runtime.matrix.MatrixCharacteristics;
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.Operator;
import org.apache.sysml.runtime.matrix.operators.ReIndexOperator;
import org.apache.sysml.runtime.util.IndexRange;
import org.apache.sysml.runtime.util.UtilFunctions;
public class RangeBasedReIndexInstruction extends UnaryMRInstructionBase
{
private IndexRange _ixrange = null;
private boolean _forLeft = false;
private long _rlenLhs = -1;
private long _clenLhs = -1;
public RangeBasedReIndexInstruction(Operator op, byte in, byte out, IndexRange rng, boolean forleft, long rlen, long clen, String istr) {
super(op, in, out);
mrtype = MRINSTRUCTION_TYPE.RangeReIndex;
instString = istr;
_ixrange = rng;
_forLeft = forleft;
_rlenLhs = rlen;
_clenLhs = clen;
}
public void computeOutputCharacteristics(MatrixCharacteristics mcIn, MatrixCharacteristics mcOut) {
if( _forLeft )
mcOut.set(_rlenLhs, _clenLhs, mcIn.getRowsPerBlock(), mcIn.getColsPerBlock(), -1);
else
mcOut.set(_ixrange.rowEnd-_ixrange.rowStart+1, _ixrange.colEnd-_ixrange.colStart+1,
mcIn.getRowsPerBlock(), mcIn.getColsPerBlock(), -1);
}
public static RangeBasedReIndexInstruction parseInstruction( String str )
throws DMLRuntimeException
{
InstructionUtils.checkNumFields ( str, 8 );
String[] parts = InstructionUtils.getInstructionParts ( str );
String opcode = parts[0];
boolean forLeft = false;
if(opcode.equalsIgnoreCase("rangeReIndexForLeft"))
forLeft=true;
else if(!opcode.equalsIgnoreCase("rangeReIndex"))
throw new DMLRuntimeException("Unknown opcode while parsing a Select: " + str);
byte in = Byte.parseByte(parts[1]);
IndexRange rng=new IndexRange(UtilFunctions.parseToLong(parts[2]),
UtilFunctions.parseToLong(parts[3]),
UtilFunctions.parseToLong(parts[4]),
UtilFunctions.parseToLong(parts[5]));
byte out = Byte.parseByte(parts[6]);
long rlen = Long.parseLong(parts[7]);
long clen = Long.parseLong(parts[8]);
return new RangeBasedReIndexInstruction(new ReIndexOperator(), in, out, rng, forLeft, rlen, clen, str);
}
@Override
public void processInstruction(Class valueClass,
CachedValueMap cachedValues, IndexedMatrixValue tempValue,
IndexedMatrixValue zeroInput, int blockRowFactor, int blockColFactor)
throws DMLRuntimeException
{
if(input==output)
throw new DMLRuntimeException("input cannot be the same for output for "+instString);
ArrayList blkList = cachedValues.get(input);
if( blkList != null ) {
for(IndexedMatrixValue in : blkList)
{
if( in == null )
continue;
//process instruction (incl block allocation)
ArrayList outlist = new ArrayList();
if( _forLeft )
OperationsOnMatrixValues.performShift(in, _ixrange, blockRowFactor, blockColFactor, _rlenLhs, _clenLhs, outlist);
else
OperationsOnMatrixValues.performSlice(in, _ixrange, blockRowFactor, blockColFactor, outlist);
//put blocks into result cache
for( IndexedMatrixValue ret : outlist )
cachedValues.add(output, ret);
}
}
}
}