org.nd4j.linalg.api.ops.impl.reduce.bp.PowBp Maven / Gradle / Ivy
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* * 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.
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* * SPDX-License-Identifier: Apache-2.0
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*/
package org.nd4j.linalg.api.ops.impl.reduce.bp;
import lombok.NoArgsConstructor;
import org.nd4j.autodiff.samediff.SDVariable;
import org.nd4j.autodiff.samediff.SameDiff;
import org.nd4j.common.base.Preconditions;
import org.nd4j.linalg.api.buffer.DataType;
import org.nd4j.linalg.api.ndarray.INDArray;
import org.nd4j.linalg.api.ops.impl.transforms.BaseDynamicTransformOp;
import java.util.Arrays;
import java.util.List;
@NoArgsConstructor
public class PowBp extends BaseDynamicTransformOp {
public PowBp(SameDiff sameDiff, SDVariable x, SDVariable y, SDVariable dLdz) {
super(sameDiff,new SDVariable[]{x,y,dLdz}, false);
}
public PowBp(INDArray x, INDArray y, INDArray dLdz,
INDArray dLdx, INDArray dLdy) {
super(new INDArray[]{x,y, dLdz}, new INDArray[]{dLdx, dLdy});
}
@Override
public String opName() {
return "Pow_bp";
}
@Override
public boolean isInplaceCall() {
return false;
}
@Override
public List calculateOutputDataTypes(List dataTypes){
Preconditions.checkState(dataTypes != null && dataTypes.size() == 3, "Expected exactly 3 input datatypes for %s, got input %s", getClass(), dataTypes);
//Gradient types: same as input
return Arrays.asList(arg(0).dataType(), arg(1).dataType());
}
}