| /* |
| * 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.matrix.operators; |
| |
| import java.io.Serializable; |
| |
| import org.apache.sysds.runtime.functionobjects.Multiply; |
| import org.apache.sysds.runtime.functionobjects.Plus; |
| import org.apache.sysds.runtime.functionobjects.ValueFunction; |
| |
| |
| public class AggregateBinaryOperator extends Operator implements Serializable |
| { |
| private static final long serialVersionUID = 1666421325090925726L; |
| |
| public final ValueFunction binaryFn; |
| public final AggregateOperator aggOp; |
| private final int k; //num threads |
| |
| public AggregateBinaryOperator(ValueFunction inner, AggregateOperator outer) { |
| //default degree of parallelism is 1 |
| //(for example in MR/Spark because we parallelize over the number of blocks) |
| this( inner, outer, 1 ); |
| } |
| |
| public AggregateBinaryOperator(ValueFunction inner, AggregateOperator outer, int numThreads) { |
| //so far, we only support matrix multiplication, and it is sparseSafe |
| super(inner instanceof Multiply && outer.increOp.fn instanceof Plus); |
| binaryFn = inner; |
| aggOp = outer; |
| k = numThreads; |
| } |
| |
| public int getNumThreads() { |
| return k; |
| } |
| } |