| /* |
| * 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.controlprogram.paramserv.dp; |
| |
| import java.util.List; |
| |
| import org.apache.sysds.runtime.matrix.data.MatrixBlock; |
| |
| import scala.Tuple2; |
| |
| /** |
| * Spark Disjoint_Contiguous data partitioner: |
| * <p> |
| * For each row, find out the shifted place according to the workerID indicator |
| */ |
| public class DCSparkScheme extends DataPartitionSparkScheme { |
| |
| private static final long serialVersionUID = -2786906947020788787L; |
| |
| protected DCSparkScheme() { |
| // No-args constructor used for deserialization |
| } |
| |
| @Override |
| public Result doPartitioning(int numWorkers, int rblkID, MatrixBlock features, MatrixBlock labels) { |
| List<Tuple2<Integer, Tuple2<Long, MatrixBlock>>> pfs = nonShuffledPartition(rblkID, features); |
| List<Tuple2<Integer, Tuple2<Long, MatrixBlock>>> pls = nonShuffledPartition(rblkID, labels); |
| return new Result(pfs, pls); |
| } |
| } |