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[FLINK-21326] Optimize the topology building in ExecutionGraph
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143 changes: 143 additions & 0 deletions
143
...k-runtime/src/main/java/org/apache/flink/runtime/executiongraph/EdgeManagerBuildUtil.java
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| /* | ||
| * 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 | ||
| */ | ||
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| package org.apache.flink.runtime.executiongraph; | ||
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| import org.apache.flink.runtime.jobgraph.DistributionPattern; | ||
| import org.apache.flink.runtime.jobgraph.IntermediateResultPartitionID; | ||
| import org.apache.flink.runtime.scheduler.strategy.ConsumedPartitionGroup; | ||
| import org.apache.flink.runtime.scheduler.strategy.ConsumerVertexGroup; | ||
| import org.apache.flink.runtime.scheduler.strategy.ExecutionVertexID; | ||
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| import java.util.ArrayList; | ||
| import java.util.Arrays; | ||
| import java.util.List; | ||
| import java.util.stream.Collectors; | ||
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| /** Utilities for building {@link EdgeManager}. */ | ||
| public class EdgeManagerBuildUtil { | ||
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| public static void connectVertexToResult( | ||
| ExecutionJobVertex vertex, | ||
| IntermediateResult ires, | ||
| int inputNumber, | ||
| DistributionPattern distributionPattern) { | ||
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| switch (distributionPattern) { | ||
| case POINTWISE: | ||
| connectPointwise(vertex.getTaskVertices(), ires, inputNumber); | ||
| break; | ||
| case ALL_TO_ALL: | ||
| connectAllToAll(vertex.getTaskVertices(), ires, inputNumber); | ||
| break; | ||
| default: | ||
| throw new RuntimeException("Unrecognized distribution pattern."); | ||
| } | ||
| } | ||
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| private static void connectAllToAll( | ||
| ExecutionVertex[] taskVertices, IntermediateResult ires, int inputNumber) { | ||
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| ConsumedPartitionGroup consumedPartitions = | ||
| new ConsumedPartitionGroup( | ||
| Arrays.stream(ires.getPartitions()) | ||
| .map(IntermediateResultPartition::getPartitionId) | ||
| .collect(Collectors.toList())); | ||
| for (ExecutionVertex ev : taskVertices) { | ||
| ev.addConsumedPartitions(consumedPartitions, inputNumber); | ||
| } | ||
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| ConsumerVertexGroup vertices = | ||
| new ConsumerVertexGroup( | ||
| Arrays.stream(taskVertices) | ||
| .map(ExecutionVertex::getID) | ||
| .collect(Collectors.toList())); | ||
| for (IntermediateResultPartition partition : ires.getPartitions()) { | ||
| partition.addConsumers(vertices); | ||
| } | ||
| } | ||
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| private static void connectPointwise( | ||
| ExecutionVertex[] taskVertices, IntermediateResult ires, int inputNumber) { | ||
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| final int sourceCount = ires.getPartitions().length; | ||
| final int targetCount = taskVertices.length; | ||
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| if (sourceCount == targetCount) { | ||
| for (int i = 0; i < sourceCount; i++) { | ||
| ExecutionVertex executionVertex = taskVertices[i]; | ||
| IntermediateResultPartition partition = ires.getPartitions()[i]; | ||
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| ConsumerVertexGroup consumerVertexGroup = | ||
| new ConsumerVertexGroup(executionVertex.getID()); | ||
| partition.addConsumers(consumerVertexGroup); | ||
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| ConsumedPartitionGroup consumedPartitionGroup = | ||
| new ConsumedPartitionGroup(partition.getPartitionId()); | ||
| executionVertex.addConsumedPartitions(consumedPartitionGroup, inputNumber); | ||
| } | ||
| } else if (sourceCount > targetCount) { | ||
| for (int index = 0; index < targetCount; index++) { | ||
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| ExecutionVertex executionVertex = taskVertices[index]; | ||
| ConsumerVertexGroup consumerVertexGroup = | ||
| new ConsumerVertexGroup(executionVertex.getID()); | ||
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| int start = index * sourceCount / targetCount; | ||
| int end = (index + 1) * sourceCount / targetCount; | ||
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| List<IntermediateResultPartitionID> consumedPartitions = | ||
| new ArrayList<>(end - start); | ||
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| for (int i = start; i < end; i++) { | ||
| IntermediateResultPartition partition = ires.getPartitions()[i]; | ||
| partition.addConsumers(consumerVertexGroup); | ||
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| consumedPartitions.add(partition.getPartitionId()); | ||
| } | ||
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| ConsumedPartitionGroup consumedPartitionGroup = | ||
| new ConsumedPartitionGroup(consumedPartitions); | ||
| executionVertex.addConsumedPartitions(consumedPartitionGroup, inputNumber); | ||
| } | ||
| } else { | ||
| for (int partitionNum = 0; partitionNum < sourceCount; partitionNum++) { | ||
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| IntermediateResultPartition partition = ires.getPartitions()[partitionNum]; | ||
| ConsumedPartitionGroup consumerPartitionGroup = | ||
| new ConsumedPartitionGroup(partition.getPartitionId()); | ||
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| float factor = ((float) targetCount) / sourceCount; | ||
| int start = (int) (Math.ceil(partitionNum * factor)); | ||
| int end = (int) (Math.ceil((partitionNum + 1) * factor)); | ||
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| List<ExecutionVertexID> consumers = new ArrayList<>(end - start); | ||
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| for (int i = start; i < end; i++) { | ||
| ExecutionVertex executionVertex = taskVertices[i]; | ||
| executionVertex.addConsumedPartitions(consumerPartitionGroup, inputNumber); | ||
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| consumers.add(executionVertex.getID()); | ||
| } | ||
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| ConsumerVertexGroup consumerVertexGroup = new ConsumerVertexGroup(consumers); | ||
| partition.addConsumers(consumerVertexGroup); | ||
| } | ||
| } | ||
| } | ||
| } |
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