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* * terms of the Apache License, Version 2.0 which is available at
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package org.nd4j.linalg.api.ops.impl.reduce;
import lombok.EqualsAndHashCode;
import org.nd4j.autodiff.samediff.SDVariable;
import org.nd4j.autodiff.samediff.SameDiff;
import org.nd4j.common.base.Preconditions;
import org.nd4j.linalg.api.blas.params.MMulTranspose;
import org.nd4j.linalg.api.buffer.DataType;
import org.nd4j.linalg.api.ndarray.INDArray;
import org.nd4j.linalg.api.ops.DynamicCustomOp;
import org.nd4j.common.util.ArrayUtil;
import java.util.List;
@EqualsAndHashCode
public class MmulBp extends DynamicCustomOp {
protected MMulTranspose mt;
public MmulBp(SameDiff sameDiff,
SDVariable x,
SDVariable y,
SDVariable eps,
MMulTranspose mt) {
super(null,sameDiff,new SDVariable[]{x,y,eps});
this.mt = mt;
addIArgument(ArrayUtil.fromBoolean(mt.isTransposeA()), ArrayUtil.fromBoolean(mt.isTransposeB()), ArrayUtil.fromBoolean(mt.isTransposeResult()));
}
public MmulBp(SameDiff sameDiff,
SDVariable x,
SDVariable y,
SDVariable eps) {
this(sameDiff,x,y, eps, MMulTranspose.allFalse());
}
public MmulBp(INDArray x,
INDArray y,
INDArray eps,
INDArray dldx,
INDArray dldy,
MMulTranspose mt) {
super(null, new INDArray[]{x, y, eps}, new INDArray[]{dldx, dldy});
if (mt != null) {
this.mt = mt;
addIArgument(ArrayUtil.fromBoolean(mt.isTransposeA()),
ArrayUtil.fromBoolean(mt.isTransposeB()),
ArrayUtil.fromBoolean(mt.isTransposeResult()));
}
}
public MmulBp() {}
@Override
public String opName() {
return "matmul_bp";
}
@Override
public List doDiff(List i_v1) {
throw new UnsupportedOperationException("Differentiation of " + getClass().getName() + " not supported");
}
@Override
public List calculateOutputDataTypes(List dataTypes) {
Preconditions.checkState(dataTypes != null && dataTypes.size() == 3, "Expected exactly 3 inputs to matmul_bp op, got %s", dataTypes);
Preconditions.checkState(dataTypes.get(0).isFPType() && dataTypes.get(1).isFPType() && dataTypes.get(0).isFPType(), "Inputs to matmul_bp op must both be a floating" +
"point type: got %s", dataTypes);
return dataTypes.subList(0, 2);
}
}