You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
92 lines
3.0 KiB
92 lines
3.0 KiB
// Copyright (c) 2018 PaddlePaddle Authors. All Rights Reserved.
|
|
//
|
|
// Licensed 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.
|
|
|
|
#pragma once
|
|
#include <vector>
|
|
#include "paddle/fluid/framework/eigen.h"
|
|
#include "paddle/fluid/framework/op_registry.h"
|
|
|
|
namespace paddle {
|
|
namespace operators {
|
|
template <typename DeviceContext, typename T, int Rank>
|
|
struct ReverseFunctor {
|
|
void operator()(const DeviceContext& context, const framework::LoDTensor& in,
|
|
framework::LoDTensor* out, const std::vector<int>& axis) {
|
|
Eigen::array<bool, Rank> reverse_axis;
|
|
for (int i = 0; i < Rank; ++i) {
|
|
reverse_axis[i] = false;
|
|
}
|
|
for (int a : axis) {
|
|
if (a >= 0) {
|
|
reverse_axis[a] = true;
|
|
} else {
|
|
reverse_axis[Rank + a] = true;
|
|
}
|
|
}
|
|
|
|
auto in_eigen = framework::EigenTensor<T, Rank>::From(in);
|
|
auto out_eigen = framework::EigenTensor<T, Rank>::From(*out);
|
|
auto* dev = context.eigen_device();
|
|
|
|
out_eigen.device(*dev) = in_eigen.reverse(reverse_axis);
|
|
}
|
|
};
|
|
|
|
template <typename DeviceContext, typename T>
|
|
class ReverseKernel : public framework::OpKernel<T> {
|
|
public:
|
|
void Compute(const framework::ExecutionContext& context) const override {
|
|
auto* x = context.Input<framework::LoDTensor>("X");
|
|
auto* out = context.Output<framework::LoDTensor>("Out");
|
|
out->mutable_data<T>(context.GetPlace());
|
|
const auto& axis = context.Attr<std::vector<int>>("axis");
|
|
int rank = x->dims().size();
|
|
auto& dev_ctx = context.template device_context<DeviceContext>();
|
|
|
|
switch (rank) {
|
|
case 1:
|
|
ReverseFunctor<DeviceContext, T, 1> functor1;
|
|
functor1(dev_ctx, *x, out, axis);
|
|
break;
|
|
case 2:
|
|
ReverseFunctor<DeviceContext, T, 2> functor2;
|
|
functor2(dev_ctx, *x, out, axis);
|
|
break;
|
|
case 3:
|
|
ReverseFunctor<DeviceContext, T, 3> functor3;
|
|
functor3(dev_ctx, *x, out, axis);
|
|
break;
|
|
case 4:
|
|
ReverseFunctor<DeviceContext, T, 4> functor4;
|
|
functor4(dev_ctx, *x, out, axis);
|
|
break;
|
|
case 5:
|
|
ReverseFunctor<DeviceContext, T, 5> functor5;
|
|
functor5(dev_ctx, *x, out, axis);
|
|
break;
|
|
case 6:
|
|
ReverseFunctor<DeviceContext, T, 6> functor6;
|
|
functor6(dev_ctx, *x, out, axis);
|
|
break;
|
|
default:
|
|
PADDLE_THROW(paddle::platform::errors::OutOfRange(
|
|
"The reserve operator does not support input tensors"
|
|
"whose ranks are greater than 6."));
|
|
}
|
|
}
|
|
};
|
|
|
|
} // namespace operators
|
|
} // namespace paddle
|