| /* |
| * 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.context; |
| |
| import org.apache.sysds.api.DMLScript; |
| import org.apache.sysds.common.Types.ExecMode; |
| import org.apache.sysds.hops.OptimizerUtils; |
| import org.apache.sysds.runtime.controlprogram.LocalVariableMap; |
| import org.apache.sysds.runtime.controlprogram.Program; |
| |
| public class ExecutionContextFactory |
| { |
| public static ExecutionContext createContext() { |
| return createContext( null ); |
| } |
| |
| public static ExecutionContext createContext(Program prog) { |
| return createContext(true, prog); |
| } |
| |
| public static ExecutionContext createContext(LocalVariableMap vars, Program prog) { |
| ExecutionContext ec = createContext(false, prog); |
| ec.setVariables(vars); |
| return ec; |
| } |
| |
| public static ExecutionContext createContext(boolean allocateVars, Program prog) { |
| return createContext(allocateVars, DMLScript.LINEAGE, prog ); |
| } |
| |
| public static ExecutionContext createContext(boolean allocateVars, boolean allocateLineage, Program prog) |
| { |
| ExecutionContext ec = null; |
| |
| switch( DMLScript.getGlobalExecMode() ) |
| { |
| case SINGLE_NODE: |
| //NOTE: even in case of forced singlenode operations, users might still |
| //want to run remote parfor which requires the correct execution context |
| if( OptimizerUtils.getDefaultExecutionMode()==ExecMode.HYBRID) |
| ec = new ExecutionContext(allocateVars, allocateLineage, prog); |
| else |
| ec = new SparkExecutionContext(allocateVars, allocateLineage, prog); |
| break; |
| |
| case SPARK: |
| case HYBRID: |
| ec = new SparkExecutionContext(allocateVars, allocateLineage, prog); |
| break; |
| } |
| |
| return ec; |
| } |
| } |