org.nd4j.linalg.api.ops.impl.transforms.pairwise.arithmetic.bp.BaseArithmeticBackpropOp Maven / Gradle / Ivy
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* * terms of the Apache License, Version 2.0 which is available at
* * https://www.apache.org/licenses/LICENSE-2.0.
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* * information regarding copyright ownership.
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package org.nd4j.linalg.api.ops.impl.transforms.pairwise.arithmetic.bp;
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.ops.impl.transforms.BaseDynamicTransformOp;
import java.util.Arrays;
import java.util.List;
public abstract class BaseArithmeticBackpropOp extends BaseDynamicTransformOp {
public BaseArithmeticBackpropOp() {}
public BaseArithmeticBackpropOp(SameDiff sameDiff, SDVariable x, SDVariable y, SDVariable eps) {
super(sameDiff, new SDVariable[]{x,y,eps}, false);
}
@Override
public List doDiff(List i_v) {
throw new UnsupportedOperationException("Not supported");
}
@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());
}
}