org.apache.sysml.udf.lib.DynamicProjectMatrixCP Maven / Gradle / Ivy
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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.udf.lib;
import org.apache.sysml.runtime.matrix.data.InputInfo;
import org.apache.sysml.runtime.matrix.data.MatrixBlock;
import org.apache.sysml.runtime.matrix.data.OutputInfo;
import org.apache.sysml.udf.FunctionParameter;
import org.apache.sysml.udf.Matrix;
import org.apache.sysml.udf.PackageFunction;
import org.apache.sysml.udf.Matrix.ValueType;
public class DynamicProjectMatrixCP extends PackageFunction
{
private static final long serialVersionUID = 1L;
private static final String OUTPUT_FILE = "DynProjectMatrixWrapperOutput2D";
private Matrix _ret;
@Override
public int getNumFunctionOutputs()
{
return 1;
}
@Override
public FunctionParameter getFunctionOutput(int pos)
{
return _ret;
}
@Override
public void execute()
{
try
{
Matrix mD = (Matrix) this.getFunctionInput(0);
Matrix mC = (Matrix) this.getFunctionInput(1);
MatrixBlock mbD = mD.getMatrixObject().acquireRead();
MatrixBlock mbC = mC.getMatrixObject().acquireRead();
int rows = mbC.getNumColumns();
int cols = mbC.getNumColumns();
String dir = createOutputFilePathAndName( OUTPUT_FILE );
MatrixBlock mb = null;
if( mbD.getNumColumns()==1 ) //VECTOR
{
cols=1;
mb = new MatrixBlock(rows,cols,false);
for(int i=0; i < rows; i++)
{
int ix1 = (int)mbC.quickGetValue(0, i)-1;
double val = mbD.quickGetValue(ix1, 0);
mb.quickSetValue(i, 0, val);
}
}
else //MATRIX
{
mb = new MatrixBlock(rows,cols,false);
for(int i=0; i < rows; i++)
{
int ix1 = (int)mbC.quickGetValue(0, i)-1;
for(int j=0; j < cols; j++)
{
int ix2 = (int)mbC.quickGetValue(0, j)-1;
double val = mbD.quickGetValue(ix1, ix2);
mb.quickSetValue(i, j, val);
}
}
}
_ret = new Matrix(dir, rows, cols, ValueType.Double);
_ret.setMatrixDoubleArray(mb, OutputInfo.BinaryBlockOutputInfo, InputInfo.BinaryBlockInputInfo);
mD.getMatrixObject().release();
mC.getMatrixObject().release();
}
catch(Exception e)
{
throw new RuntimeException("Error executing dynamic project of matrix", e);
}
}
}