org.nd4j.autodiff.samediff.optimize.OptimizationHelper Maven / Gradle / Ivy
/*
* ******************************************************************************
* *
* *
* * This program and the accompanying materials are made available under the
* * terms of the Apache License, Version 2.0 which is available at
* * https://www.apache.org/licenses/LICENSE-2.0.
* *
* * See the NOTICE file distributed with this work for additional
* * information regarding copyright ownership.
* * 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.
* *
* * SPDX-License-Identifier: Apache-2.0
* *****************************************************************************
*/
package org.nd4j.autodiff.samediff.optimize;
import lombok.Getter;
import org.nd4j.autodiff.samediff.ArrayHolder;
import org.nd4j.autodiff.samediff.SDVariable;
import org.nd4j.autodiff.samediff.SameDiff;
import org.nd4j.autodiff.samediff.VariableType;
import org.nd4j.autodiff.samediff.array.OptimizedGraphArrayHolder;
import org.nd4j.common.base.Preconditions;
import org.nd4j.common.function.Supplier;
import org.nd4j.linalg.api.ndarray.INDArray;
import java.util.Properties;
public class OptimizationHelper {
private final SameDiff originalGraph;
@Getter
private final Properties properties;
private boolean setConstantHolder = false;
private boolean setVariableHolder = false;
public OptimizationHelper(SameDiff originalGraph, Properties properties){
this.originalGraph = originalGraph;
this.properties = properties;
}
public OptimizationHelper arrayRecoveryFunction(String arrayName, Supplier fn){
SDVariable v = originalGraph.getVariable(arrayName);
Preconditions.checkState(v.getVariableType() == VariableType.VARIABLE || v.getVariableType() == VariableType.CONSTANT,
"Can only set an array recovery function for a variable or a constant");
if(v.getVariableType() == VariableType.VARIABLE){
ArrayHolder h = originalGraph.getVariablesArrays();
if(!setVariableHolder){
originalGraph.setVariablesArrays(new OptimizedGraphArrayHolder(h));
h = originalGraph.getVariablesArrays();
setVariableHolder = true;
}
((OptimizedGraphArrayHolder)h).setFunction(arrayName, fn);
} else {
ArrayHolder h = originalGraph.getConstantArrays();
if(!setConstantHolder){
originalGraph.setConstantArrays(new OptimizedGraphArrayHolder(h));
h = originalGraph.getConstantArrays();
setConstantHolder = true;
}
((OptimizedGraphArrayHolder)h).setFunction(arrayName, fn);
}
return this;
}
}