| /* |
| * 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.sysds.runtime.instructions.spark; |
| |
| import org.apache.spark.api.java.JavaPairRDD; |
| import org.apache.spark.api.java.function.Function; |
| import org.apache.sysds.runtime.controlprogram.context.ExecutionContext; |
| import org.apache.sysds.runtime.controlprogram.context.SparkExecutionContext; |
| import org.apache.sysds.runtime.instructions.InstructionUtils; |
| import org.apache.sysds.runtime.instructions.cp.CPOperand; |
| import org.apache.sysds.runtime.matrix.data.MatrixBlock; |
| import org.apache.sysds.runtime.matrix.data.MatrixIndexes; |
| import org.apache.sysds.runtime.matrix.operators.AggregateUnaryOperator; |
| import org.apache.sysds.runtime.matrix.operators.BinaryOperator; |
| |
| public class BinUaggChainSPInstruction extends UnarySPInstruction { |
| // operators |
| private BinaryOperator _bOp = null; |
| private AggregateUnaryOperator _uaggOp = null; |
| |
| private BinUaggChainSPInstruction(CPOperand in, CPOperand out, BinaryOperator bop, AggregateUnaryOperator uaggop, |
| String opcode, String istr) { |
| super(SPType.BinUaggChain, null, in, out, opcode, istr); |
| _bOp = bop; |
| _uaggOp = uaggop; |
| |
| } |
| |
| public static BinUaggChainSPInstruction parseInstruction ( String str ) { |
| //parse instruction parts (without exec type) |
| String[] parts = InstructionUtils.getInstructionPartsWithValueType( str ); |
| InstructionUtils.checkNumFields( parts, 4 ); |
| String opcode = parts[0]; |
| BinaryOperator bop = InstructionUtils.parseBinaryOperator(parts[1]); |
| AggregateUnaryOperator uaggop = InstructionUtils.parseBasicAggregateUnaryOperator(parts[2]); |
| CPOperand in = new CPOperand(parts[3]); |
| CPOperand out = new CPOperand(parts[4]); |
| return new BinUaggChainSPInstruction(in, out, bop, uaggop, opcode, str); |
| } |
| |
| @Override |
| public void processInstruction(ExecutionContext ec) { |
| SparkExecutionContext sec = (SparkExecutionContext)ec; |
| |
| //get input |
| JavaPairRDD<MatrixIndexes,MatrixBlock> in = sec.getBinaryMatrixBlockRDDHandleForVariable( input1.getName() ); |
| |
| //execute unary builtin operation |
| JavaPairRDD<MatrixIndexes,MatrixBlock> out = |
| in.mapValues(new RDDBinUaggChainFunction(_bOp, _uaggOp)); |
| |
| //set output RDD |
| updateUnaryOutputDataCharacteristics(sec); |
| sec.setRDDHandleForVariable(output.getName(), out); |
| sec.addLineageRDD(output.getName(), input1.getName()); |
| } |
| |
| public static class RDDBinUaggChainFunction implements Function<MatrixBlock,MatrixBlock> |
| { |
| private static final long serialVersionUID = 886065328623752520L; |
| |
| private BinaryOperator _bOp = null; |
| private AggregateUnaryOperator _uaggOp = null; |
| |
| public RDDBinUaggChainFunction(BinaryOperator bop, AggregateUnaryOperator uaggop) { |
| _bOp = bop; |
| _uaggOp = uaggop; |
| } |
| |
| @Override |
| public MatrixBlock call(MatrixBlock arg0) |
| throws Exception |
| { |
| int blen = arg0.getNumRows(); |
| |
| //perform unary aggregate operation |
| MatrixBlock out1 = new MatrixBlock(); |
| arg0.aggregateUnaryOperations(_uaggOp, out1, blen, null); |
| |
| //strip-off correction |
| out1.dropLastRowsOrColumns(_uaggOp.aggOp.correction); |
| |
| //perform binary operation |
| MatrixBlock out2 = new MatrixBlock(); |
| return arg0.binaryOperations(_bOp, out1, out2); |
| } |
| } |
| } |