| /* |
| * 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.lops; |
| |
| import org.apache.sysml.lops.LopProperties.ExecLocation; |
| import org.apache.sysml.lops.LopProperties.ExecType; |
| import org.apache.sysml.lops.compile.JobType; |
| import org.apache.sysml.parser.Expression.*; |
| |
| |
| /** |
| * Lop to perform cross product operation |
| */ |
| public class CentralMoment extends Lop |
| { |
| |
| /** |
| * Constructor to perform central moment. |
| * input1 <- data (weighted or unweighted) |
| * input2 <- order (integer: 0, 2, 3, or 4) |
| */ |
| |
| private void init(Lop input1, Lop input2, Lop input3, ExecType et) { |
| this.addInput(input1); |
| this.addInput(input2); |
| input1.addOutput(this); |
| input2.addOutput(this); |
| |
| boolean breaksAlignment = false; |
| boolean aligner = false; |
| boolean definesMRJob = false; |
| if ( et == ExecType.MR ) { |
| definesMRJob = true; |
| lps.addCompatibility(JobType.CM_COV); |
| lps.setProperties(inputs, et, ExecLocation.MapAndReduce, breaksAlignment, aligner, definesMRJob); |
| } |
| else { //CP/SPARK |
| // when executing in CP, this lop takes an optional 3rd input (Weights) |
| if ( input3 != null ) { |
| this.addInput(input3); |
| input3.addOutput(this); |
| } |
| lps.addCompatibility(JobType.INVALID); |
| lps.setProperties(inputs, et, ExecLocation.ControlProgram, breaksAlignment, aligner, definesMRJob); |
| } |
| } |
| |
| public CentralMoment(Lop input1, Lop input2, DataType dt, ValueType vt) { |
| this(input1, input2, null, dt, vt, ExecType.MR); |
| } |
| |
| public CentralMoment(Lop input1, Lop input2, DataType dt, ValueType vt, ExecType et) { |
| this(input1, input2, null, dt, vt, et); |
| } |
| |
| public CentralMoment(Lop input1, Lop input2, Lop input3, DataType dt, ValueType vt) { |
| this(input1, input2, input3, dt, vt, ExecType.MR); |
| } |
| |
| public CentralMoment(Lop input1, Lop input2, Lop input3, DataType dt, ValueType vt, ExecType et) { |
| super(Lop.Type.CentralMoment, dt, vt); |
| init(input1, input2, input3, et); |
| } |
| |
| @Override |
| public String toString() { |
| |
| return "Operation = CentralMoment"; |
| } |
| |
| /** |
| * Function to generate CP centralMoment instruction for weighted operation. |
| * |
| * input1: data |
| * input2: weights |
| * input3: order |
| */ |
| @Override |
| public String getInstructions(String input1, String input2, String input3, String output) { |
| StringBuilder sb = new StringBuilder(); |
| sb.append( getExecType() ); |
| sb.append( Lop.OPERAND_DELIMITOR ); |
| |
| sb.append( "cm" ); |
| sb.append( OPERAND_DELIMITOR ); |
| |
| // Input data |
| sb.append( getInputs().get(0).prepInputOperand(input1) ); |
| sb.append( OPERAND_DELIMITOR ); |
| |
| // Weights |
| sb.append( getInputs().get(1).prepInputOperand(input2) ); |
| sb.append( OPERAND_DELIMITOR ); |
| |
| // Order |
| sb.append( getInputs().get(2).prepScalarInputOperand(getExecType()) ); |
| sb.append( OPERAND_DELIMITOR ); |
| |
| sb.append( prepOutputOperand(output)); |
| |
| return sb.toString(); |
| } |
| |
| /** |
| * Function to generate CP centralMoment instruction for unweighted operation. |
| * |
| * input1: data |
| * input2: order (not used, and order is derived internally!) |
| */ |
| @Override |
| public String getInstructions(String input1, String input2, String output) { |
| StringBuilder sb = new StringBuilder(); |
| sb.append( getExecType() ); |
| sb.append( Lop.OPERAND_DELIMITOR ); |
| |
| sb.append( "cm" ); |
| sb.append( OPERAND_DELIMITOR ); |
| |
| // Input data (can be weighted or unweighted) |
| sb.append( getInputs().get(0).prepInputOperand(input1)); |
| sb.append( OPERAND_DELIMITOR ); |
| |
| // Order |
| sb.append( getInputs().get(1).prepScalarInputOperand(getExecType()) ); |
| sb.append( OPERAND_DELIMITOR ); |
| |
| sb.append( this.prepOutputOperand(output)); |
| |
| return sb.toString(); |
| } |
| |
| /** |
| * Function to generate MR central moment instruction, invoked from |
| * <code>Dag.java:getAggAndOtherInstructions()</code>. This function |
| * is used for both weighted and unweighted operations. |
| * |
| * input_index: data (in case of weighted: data combined via combinebinary) |
| * output_index: produced output |
| * |
| * The order for central moment is derived internally in the function. |
| */ |
| @Override |
| public String getInstructions(int input_index, int output_index) { |
| return getInstructions(input_index+"", "", output_index+""); |
| } |
| |
| } |